Selected DataStreme Atmosphere Weather Map Symbols

Surface Station Model

Temp (F)
Weather
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)
Weather
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 

Rain

1/8   1-2 knots (1-2 mph) warm front 

Rain Shower

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

Thunderstorm

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

Drizzle

4/8   13-17 knots (15-20 mph) trough 

Snow

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
Smoke
Dust or Sand
Blowing Snow

DataStreme Atmosphere is part of the Cooperative Program for Earth System Education (AMS/NOAA CPESE) funded by the National Oceanic and Atmospheric Administration (NOAA). The National Science Foundation has supported DataStreme under Grant No. ESI-9453205. Meteorological products are provided via the NCEP/NWS/NOAA.

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This page was last updated 21 October 2004.
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