Selected Online Weather Map Symbols


Surface Station Model

Temp (F)
Weather
Dewpoint (F)		 Pressure (mb)
Sky Cover
Wind (kts)		 Data at Surface Station
Temp 45 oF, dewpoint 29 oF,
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 - 850 mb
Temp -5 oC, dewpoint -12 oC,
wind from S at 75 knots,
height of level 1564 m


Forecast Station Model

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

 


Map Symbols

Sky Cover Wind Fronts Selected
Weather Symbols
clear Calm cold front warm front

Rain
1/8   1-2 knots (1-2 mph) stationary front occluded front

Rain Shower
scattered   3-7 knots (3-8 mph) trough

Thunderstorm
3/8   8-12 knots (9-14 mph) radar intensities
colors.gif (518 bytes)

Drizzle
4/8   13-17 knots (15-20 mph) tornado (T) #300
t_box.gif (346 bytes)

or wxsym/k2.gif (141 bytes) Snow
5/8   18-22 knots (21-25 mph) severe thunderstorm (S) #287s_box.gif (354 bytes)

Snow Shower
broken   23-27 knots (26-31 mph)   Freezing Rain
7/8   48-52 knots (55-60 mph) Freezing Drizzle
overcast   73-77 knots (84-89 mph) Fog
obscured 103-107 knots (119-123 mph) Haze
missing

Shaft in direction wind is coming from

 Smoke
  Dust or Sand
Blowing Snow

The DataStreme Project is supported by the National Science Foundation under Grant No. ESI-9453205.

American Meteorological Society

URL: onlinewx:/extras/wxsym2.html
This page was last updated 05 January 1999.
© Copyright 1999: American Meteorological Society