+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| Variable Name      | Description                                                   | Available Units             | Additional Keyword Arguments                                                                                                                            |
+====================+===============================================================+=============================+=========================================================================================================================================================+
| avo                | Absolute Vorticity                                            | 10-5 s-1                    |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| eth/theta_e        | Equivalent Potential Temperature                              | K                           | **units** (str) : Set to desired units. Default is *'K'*.                                                                                               |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | degC                        |                                                                                                                                                         |       
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | degF                        |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| cape_2d            | 2D CAPE (MCAPE/MCIN/LCL/LFC)                                  | J kg-1 ; J kg-1 ; m ; m     | **missing** (float): Fill value for output only                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| cape_3d            | 3D CAPE and CIN                                               | J kg-1                      | **missing** (float): Fill value for output only                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| ctt                | Cloud Top Temperature                                         | degC                        | **fill_nocloud** (boolean): Set to True to use fill values for cloud free regions rather than surface temperature. Default is *False*.                  |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | K                           | **missing** (float): The fill value to use when *fill_nocloud* is True.                                                                                 |       
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               |                             | **opt_thresh** (float): The optical depth required to trigger the cloud top temperature calculation. Default is 1.0.                                    |
|                    |                                                               | degF                        |                                                                                                                                                         |
|                    |                                                               |                             | **units** (str) : Set to desired units. Default is *'degC'*.                                                                                            |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| cloudfrac          | Cloud Fraction                                                | %                           | **vert_type** (str): The vertical coordinate type for the cloud thresholds. Must be 'height_agl', 'height_msl', or 'pres'.  Default is 'height_agl'.    |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               |                             | **low_thresh** (float): The low cloud threshold (meters for 'height_agl' and 'height_msl', pascals for 'pres'). Default is 300 m (97000 Pa)             |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               |                             | **mid_thresh** (float): The mid cloud threshold (meters for 'height_agl' and 'height_msl', pascals for 'pres'). Default is 2000 m (80000 Pa)            |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               |                             | **high_thresh** (float): The high cloud threshold (meters for 'height_agl' and 'height_msl', pascals for 'pres'). Default is 6000 m (45000 Pa)          |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| dbz                | Reflectivity                                                  | dBZ                         | **do_variant** (boolean): Set to True to enable variant calculation. Default is *False*.                                                                |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               |                             | **do_liqskin** (boolean): Set to True to enable liquid skin calculation. Default is *False*.                                                            |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| mdbz               | Maximum Reflectivity                                          | dBZ                         | **do_variant** (boolean): Set to True to enable variant calculation. Default is *False*.                                                                |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               |                             | **do_liqskin** (boolean): Set to True to enable liquid skin calculation. Default is *False*.                                                            |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| geopt/geopotential | Geopotential for the Mass Grid                                | m2 s-2                      |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| geopt_stag         | Geopotential for the Vertically Staggered Grid                | m2 s-2                      |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| helicity           | Storm Relative Helicity                                       | m2 s-2                      | **top** (float): The top level for the calculation in meters. Default is *3000.0*.                                                                      |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| lat                | Latitude                                                      | decimal degrees             |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| lon                | Longitude                                                     | decimal degrees             |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| omg/omega          | Omega                                                         | Pa s-1                      |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| p/pres             | Full Model Pressure                                           | Pa                          | **units** (str) : Set to desired units. Default is *'Pa'*.                                                                                              |
|                    |                                                               |                             |                                                                                                                                                         |
|                    | (in specified units)                                          | hPa                         |                                                                                                                                                         | 
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | mb                          |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | torr                        |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | mmhg                        |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | atm                         |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| pressure           | Full Model Pressure (hPa)                                     | hPa                         |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| pvo                | Potential Vorticity                                           | PVU                         |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| pw                 | Precipitable Water                                            | kg m-2                      |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| rh                 | Relative Humidity                                             | %                           |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| rh2                | 2m Relative Humidity                                          | %                           |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| slp                | Sea Level Pressure                                            | hPa                         | **units** (str) : Set to desired units. Default is *'hPa'*.                                                                                             |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | hPa                         |                                                                                                                                                         |       
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | mb                          |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | torr                        |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | mmhg                        |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | atm                         |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| ter                | Model Terrain Height                                          | m                           | **units** (str) : Set to desired units. Default is *'m'*.                                                                                               |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | km                          |                                                                                                                                                         |       
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | dm                          |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | ft                          |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | mi                          |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| td2                | 2m Dew Point Temperature                                      | degC                        | **units** (str) : Set to desired units. Default is *'degC'*.                                                                                            |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | K                           |                                                                                                                                                         |       
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | degF                        |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| td                 | Dew Point Temperature                                         | degC                        | **units** (str) : Set to desired units. Default is *'degC'*.                                                                                            |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | K                           |                                                                                                                                                         |       
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | degF                        |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| tc                 | Temperature in Celsius                                        | degC                        |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| th/theta           | Potential Temperature                                         | K                           | **units** (str) : Set to desired units. Default is *'K'*.                                                                                               |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | degC                        |                                                                                                                                                         |       
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | degF                        |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| temp               | Temperature (in specified units)                              | K                           | **units** (str) : Set to desired units. Default is *'K'*.                                                                                               |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | degC                        |                                                                                                                                                         |       
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | degF                        |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| tk                 | Temperature in Kelvin                                         | K                           |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| times              | Times in the File or Sequence                                 |                             |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| xtimes             | XTIME Coordinate                                              | minutes since               |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    | (if applicable)                                               | start of                    |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | model run                   |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| tv                 | Virtual Temperature                                           | K                           | **units** (str) : Set to desired units. Default is *'K'*.                                                                                               |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | degC                        |                                                                                                                                                         |       
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | degF                        |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| twb                | Wet Bulb Temperature                                          | K                           | **units** (str) : Set to desired units. Default is *'K'*.                                                                                               |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | degC                        |                                                                                                                                                         |       
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | degF                        |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| updraft_helicity   | Updraft Helicity                                              | m2 s-2                      | **bottom** (float): The bottom level for the calculation in meters. Default is *2000.0*.                                                                |
|                    |                                                               |                             |                                                                                                                                                         |                                                              
|                    |                                                               |                             | **top** (float): The top level for the calculation in meters. Default is *5000.0*.                                                                      |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| ua                 | U-component of Wind on Mass Points                            | m s-1                       | **units** (str) : Set to desired units. Default is *'m s-1'*.                                                                                           |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | km h-1                      |                                                                                                                                                         |       
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | mi h-1                      |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | kt                          |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | ft s-1                      |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| va                 | V-component of Wind on Mass Points                            | m s-1                       | **units** (str) : Set to desired units. Default is *'m s-1'*.                                                                                           |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | km h-1                      |                                                                                                                                                         |       
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | mi h-1                      |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | kt                          |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | ft s-1                      |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| wa                 | W-component of Wind on Mass Points                            | m s-1                       | **units** (str) : Set to desired units. Default is *'m s-1'*.                                                                                           |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | km h-1                      |                                                                                                                                                         |       
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | mi h-1                      |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | kt                          |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | ft s-1                      |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| uvmet10            | 10 m U and V Components of Wind                               | m s-1                       | **units** (str) : Set to desired units. Default is *'m s-1'*.                                                                                           |
|                    |                                                               |                             |                                                                                                                                                         |
|                    | Rotated to Earth Coordinates                                  | km h-1                      |                                                                                                                                                         |       
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | mi h-1                      |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | kt                          |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | ft s-1                      |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| uvmet              | U and V Components of Wind                                    | m s-1                       | **units** (str) : Set to desired units. Default is *'m s-1'*.                                                                                           |
|                    |                                                               |                             |                                                                                                                                                         |
|                    | Rotated to Earth Coordinates                                  | km h-1                      |                                                                                                                                                         |       
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | mi h-1                      |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | kt                          |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | ft s-1                      |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| wspd_wdir          | Wind Speed and Direction (wind_from_direction)                | m s-1                       | **units** (str) : Set to desired units. Default is *'m s-1'*.                                                                                           |
|                    |                                                               |                             |                                                                                                                                                         |
|                    | in Grid Coordinates                                           | km h-1                      |                                                                                                                                                         |       
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | mi h-1                      |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | kt                          |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | ft s-1                      |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| wspd_wdir10        | 10m Wind Speed and Direction (wind_from_direction)            | m s-1                       | **units** (str) : Set to desired units. Default is *'m s-1'*.                                                                                           |
|                    |                                                               |                             |                                                                                                                                                         |
|                    | in Grid Coordinates                                           | km h-1                      |                                                                                                                                                         |       
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | mi h-1                      |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | kt                          |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | ft s-1                      |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| uvmet_wspd_wdir    | Wind Speed and Direction (wind_from_direction)                | m s-1                       | **units** (str) : Set to desired units. Default is *'m s-1'*.                                                                                           |
|                    |                                                               |                             |                                                                                                                                                         |
|                    | Rotated to Earth Coordinates                                  | km h-1                      |                                                                                                                                                         |       
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | mi h-1                      |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | kt                          |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | ft s-1                      |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| uvmet10_wspd_wdir  | 10m Wind Speed and Direction (wind_from_direction)            | m s-1                       | **units** (str) : Set to desired units. Default is *'m s-1'*.                                                                                           |
|                    |                                                               |                             |                                                                                                                                                         |
|                    | Rotated to Earth Coordinates                                  | km h-1                      |                                                                                                                                                         |       
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | mi h-1                      |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | kt                          |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | ft s-1                      |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| z/height           | Model Height for Mass Grid                                    | m                           | **msl** (boolean): Set to False to return AGL values. True is for MSL.  Default is *True*.                                                              |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | km                          | **units** (str) : Set to desired units. Default is *'m'*.                                                                                               |       
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | dm                          |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | ft                          |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | mi                          |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+
| zstag              | Model Height for Vertically Staggered Grid                    | m                           | **msl** (boolean): Set to False to return AGL values. True is for MSL.  Default is *True*.                                                              |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | km                          | **units** (str) : Set to desired units. Default is *'m'*.                                                                                               |       
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | dm                          |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | ft                          |                                                                                                                                                         |
|                    |                                                               |                             |                                                                                                                                                         |
|                    |                                                               | mi                          |                                                                                                                                                         |
+--------------------+---------------------------------------------------------------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------+

