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Wind speed and wind gust are indicated on the map by different colors for 5 knot increments up to 115 knots. The legend includes tick marks for both knots and miles per hour. The same color scale is used for displaying the NDFD wind speed/gust forecasts. The wind velocity is depicted by curved wind barbs along streamlines. The direction of the wind barb is indicated with an arrowhead. The flags on the wind barb are the standard meteorological convention in units of knots.

This nowCOASTâ„¢ time-enabled map service provides maps depicting the past four hours of surface meteorological analyses of air temperature, dew point temperature, visibility, wind velocity, wind speed, wind gust, and 1-hr accumulated precipitation from the NWS/NCEP Real-Time Mesoscale Analysis (RTMA) system. The horizontal spatial resolution depends on geographic region: 2.5 km (1.6 miles) horizontal resolution for CONUS, Hawaii, Puerto Rico and Guam and 3 km (1.86 miles) for Alaska region.

Map Type

ArcGIS Mapserver

Map Source


NOAA NowCoast