Selected DataStreme Atmosphere Weather Map Symbols

Surface Station Model

Temp (F)
Dewpoint (F)
Pressure (mb)
Sky Cover
Wind (kts)
Data at Surface Station
Temp 45 °F, dewpoint 29 °F,
overcast, wind from SE at 15 knots,
weather light rain, pressure 1004.5 mb

Upper Air Station Model

Temp (C)

Dewpoint (C)
Height (m)

Wind (kts)
Data at Pressure Level - 500 mb
Temp -5 °C, dewpoint -12 °C,
wind from S at 75 knots,
height of level 5640 m

Forecast Station Model

Temp (F)
Dewpoint (F)
PoP (%)
Sky Cover
Wind (kts)
Forecast at Valid Time
Temp 78 °F, dewpoint 64 °F,
scattered clouds, wind from E at 10 knots,
probability of precipitation 70% with rain showers

Map Symbols

Sky Cover Wind
Shaft is direction wind is coming from
Fronts and Radar Selected
Weather Symbols
clear   Calm cold front 


1/8   1-2 knots (1-2 mph) warm front 

Rain Shower

scattered   3-7 knots (3-8 mph) stationary front 


3/8   8-12 knots (9-14 mph) occluded front 


4/8   13-17 knots (15-20 mph) trough 


5/8   18-22 knots (21-25 mph) squall line 

Snow Shower

broken   23-27 knots (26-31 mph) dryline  Freezing Rain
7/8   48-52 knots (55-60 mph) Radar Intensities
{radar intensities}
Freezing Drizzle
overcast   73-77 knots (84-89 mph) Fog
obscured 103-107 knots (119-123 mph) Haze
Multiple rain or snow symbols indicate intensity,
i.e. light, moderate, heavy
Dust or Sand
Blowing Snow

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This page was last updated 21 October 2004.
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