Table of Available Diagnostics¶
Variable Name  Description  Available Units  Additional Keyword Arguments 

avo  Absolute Vorticity  105 s1  
eth/theta_e  Equivalent Potential Temperature  K degC degF 
units (str) : Set to desired units. Default is ‘K’. 
cape_2d  2D cape (mcape/mcin/lcl/lfc)  J kg1 ; J kg1 ; m ; m  missing (float): Fill value for output only 
cape_3d  3D cape and cin  J kg1  missing (float): Fill value for output only 
ctt  Cloud Top Temperature  degC K degF 
fill_nocloud (boolean): Set to True to use fill values for cloud free regions rather than surface temperature. Default is False. 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. 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 s2  
geopt_stag  Geopotential for the Vertically Staggered Grid  m2 s2  
helicity  Storm Relative Helicity  m2 s2  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 s1  
p/pres  Full Model Pressure (in specified units) 
Pa hPa mb torr mmhg atm 
units (str) : Set to desired units. Default is ‘Pa’. 
pressure  Full Model Pressure (hPa)  hPa  
pvo  Potential Vorticity  PVU  
pw  Precipitable Water  kg m2  
rh  Relative Humidity  %  
rh2  2m Relative Humidity  %  
slp  Sea Level Pressure  hPa hPa mb torr mmhg atm 
units (str) : Set to desired units. Default is ‘hPa’. 
ter  Model Terrain Height  m km dm ft mi 
units (str) : Set to desired units. Default is ‘m’. 
td2  2m Dew Point Temperature  degC K degF 
units (str) : Set to desired units. Default is ‘degC’. 
td  Dew Point Temperature  degC K degF 
units (str) : Set to desired units. Default is ‘degC’. 
tc  Temperature in Celsius  degC  
th/theta  Potential Temperature  K degC degF 
units (str) : Set to desired units. Default is ‘K’. 
temp  Temperature (in specified units)  K degC degF 
units (str) : Set to desired units. Default is ‘K’. 
tk  Temperature in Kelvin  K  
times  Times in the File or Sequence  
xtimes  XTIME Coordinate (if applicable) 
minutes since start of model run 

tv  Virtual Temperature  K degC degF 
units (str) : Set to desired units. Default is ‘K’. 
twb  Wet Bulb Temperature  K degC degF 
units (str) : Set to desired units. Default is ‘K’. 
updraft_helicity  Updraft Helicity  m2 s2  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  Ucomponent of Wind on Mass Points  m s1 km h1 mi h1 kt ft s1 
units (str) : Set to desired units. Default is ‘m s1’. 
va  Vcomponent of Wind on Mass Points  m s1 km h1 mi h1 kt ft s1 
units (str) : Set to desired units. Default is ‘m s1’. 
wa  Wcomponent of Wind on Mass Points  m s1 km h1 mi h1 kt ft s1 
units (str) : Set to desired units. Default is ‘m s1’. 
uvmet10  10 m U and V Components of Wind Rotated to Earth Coordinates 
m s1 km h1 mi h1 kt ft s1 
units (str) : Set to desired units. Default is ‘m s1’. 
uvmet  U and V Components of Wind Rotated to Earth Coordinates 
m s1 km h1 mi h1 kt ft s1 
units (str) : Set to desired units. Default is ‘m s1’. 
wspd_wdir  Wind Speed and Direction (wind_from_direction) in Grid Coordinates 
m s1 km h1 mi h1 kt ft s1 
units (str) : Set to desired units. Default is ‘m s1’. 
wspd_wdir10  10m Wind Speed and Direction (wind_from_direction) in Grid Coordinates 
m s1 km h1 mi h1 kt ft s1 
units (str) : Set to desired units. Default is ‘m s1’. 
uvmet_wspd_wdir  Wind Speed and Direction (wind_from_direction) Rotated to Earth Coordinates 
m s1 km h1 mi h1 kt ft s1 
units (str) : Set to desired units. Default is ‘m s1’. 
uvmet10_wspd_wdir  10m Wind Speed and Direction (wind_from_direction) Rotated to Earth Coordinates 
m s1 km h1 mi h1 kt ft s1 
units (str) : Set to desired units. Default is ‘m s1’. 
z/height  Model Height for Mass Grid  m km dm ft mi 
msl (boolean): Set to False to return AGL values. True is for MSL. Default is True. units (str) : Set to desired units. Default is ‘m’. 
zstag  Model Height for Vertically Staggered Grid  m km dm ft mi 
msl (boolean): Set to False to return AGL values. True is for MSL. Default is True. units (str) : Set to desired units. Default is ‘m’. 