WW2010
University of Illinois

WW2010
 
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Online Guides
 
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Reading Maps
 
  introduction
 
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> surface maps
 
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Surface Maps
 
  temperature maps
 
  dew point maps
 
  pressure maps
 
> observation maps

Observation Maps
 
  surface obs
 
> surface obs, ir sat

User Interface
 
  graphics
> text

NOTE: We've guessed that you're not using a client that supports colored tables and have tried to compensate. Low graphics mode looks much better on clients that do... we recommend switching to Netscape 3.0 or Microsoft Internet Explorer.
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Surface Obs with Infrared Satellite

[Image: (45K)]
Reference Weather Map

Current Weather Map

The surface meteorological chart above depicts the current surface conditions at chosen sights across North America. This map, updated shortly after each hour, illustrates the present weather patterns and the location of storm systems over the continental United States.

The hourly observations (updated every hour) contain information about surface temperature and dew point temperature in degrees Fahrenheit, sea level pressure, wind speed and direction, cloud cover and type of weather conditions occurring at each surface station during the last hour. The hourly observations link provides detailed information on how to decode and interpret the numbers and symbols at each station.

In the background, infrared satellite data shows the cloud patterns over North America. The brightness of the cloud images is inversely proportional to the temperature of cloud tops, therefore the deep clouds with high (and thus cold) cloud tops typically indicating areas of intense rain and/or hail associated with deep convection appear brightest on this image. However high cirrus clouds will often also appear very bright, but these clouds do not produce precipitation.



surface obs
Terms for using data resources. CD-ROM available.
Credits and Acknowledgments for WW2010.
Department of Atmospheric Sciences (DAS) at
the University of Illinois at Urbana-Champaign.

Upper Air Obs