Directions:
Select one or more meteorological variables below and create a plot by hitting one of the plot buttons. Multiple selections will result in overlaid contour plots. Click on the variable names for descriptions of equations, units, and notes necessary for a correct interpretation of your plot. For more information about this page and the NCEP Reanalysis Project, please browse a list of frequently asked questions.

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reanalysis
Date:
Year:
Month:
Day:
Time:
00:00 GMT 12:00 GMT
Loop frames beginning with this time

Variables:
Pressure level:
 Wind
Zonal wind speed
Meridional wind speed
Wind (vectors)
Wind (isotachs)
Vertical velocity (vert. x-sect or 500 mb)
Monthly mean wind at

 Vorticity
Relative vorticity
Absolute vorticity

 Pressure
Surface pressure
Mean sea-level pressure

 Temperature
Temperature    
Potential temperature    
Maximum surface temperature °C °F
Minimum surface temperature °C °F

 Heights
Geopotential heights
Height tendency

 Quasi-geostropic variables
Q-vectors
C-vectors (horizontal)
P-vectors (horizontal)
Q-vector divergence
P-vector divergence (horizontal)

 Isentropic surface  
Isentropic temperature
Isentropic vector wind field
Isentropic potential vorticity

 Other variables
Static stability
Divergence
Corrected precipitation rate
Surface specific humidity
Surface dewpoint
Precipitable water

Map options:
Plot a zonally averaged vertical cross section (monthly mean)
Plot on a detailed world map including state and international boundaries
Add world administrative divisions to the map (e.g., Canadian provinces)
Automatically center your plot on the continental United States
Automatically center your plot on Australia
Longitude: east west degrees to degrees
Latitude: north south degrees to degrees
Line graph: Enter the same latitude or longitude in both boxes
Map projection:  Latitude/Longitude
North Polar Stereographic
South Polar Stereographic
Mollweide
Robinson
Orthogonal
Lambert
Scaled

Plot options:
Plot type: contour shaded
Set contour interval (-1 for default):
Set contour interval for second variable (-1 for default):
Increase thickness of contour lines
Gridded plot
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Revised: 19 September 2022