RTMA: Real-Time Mesoscale Analysis

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climate cloud geophysical humidity noaa nws precipitation pressure rtma surface temperature visibility weather wind


The Real-Time Mesoscale Analysis (RTMA) is a high-spatial and temporal resolution analysis for near-surface weather conditions. This dataset includes hourly analyses at 2.5 km for CONUS.


2500 meters


Name Units Min Max Description
HGT m -81* 4226*

Model terrain elevation

PRES Pa 60848* 105183*


TMP °C -43.2* 43.73*


DPT °C -81.41* 30.92*

Dew point temperature

UGRD m/s -32.93* 34.04*

U-component of wind

VGRD m/s -28.44* 39.21*

V-component of wind

SPFH kg/kg 0* 0.02*

Specific humidity

WDIR deg true 0* 360*

Wind direction (from which blowing)

WIND m/s 0* 42.46*

Wind speed

GUST m/s 0* 58.02*

Wind speed (gust)

VIS m 0* 20000*


TCDC % 0* 100*

Total cloud cover

ACPC01 kg/(m^2) 0* 1*

Total precipitation

* estimated min or max value

Terms of Use

Terms of Use

NOAA data, information, and products, regardless of the method of delivery, are not subject to copyright and carry no restrictions on their subsequent use by the public. Once obtained, they may be put to any lawful use. The forgoing data is in the public domain and is being provided without restriction on use and distribution. For more information visit the NWS disclaimer site.

Explore in Earth Engine

var dataset = ee.ImageCollection('NOAA/NWS/RTMA')
                  .filter(ee.Filter.date('2018-03-01', '2018-03-02'));
var windSpeed = dataset.select('WIND');
var windSpeedVis = {
  min: 0.0,
  max: 12.0,
  palette: ['001137', '01abab', 'e7eb05', '620500'],
Map.setCenter(-95.62, 39.91, 4);
Map.addLayer(windSpeed, windSpeedVis, 'Wind Speed');