WW2010
University of Illinois

WW2010
 
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> about ww2010
 
  index

About WW2010
 
  welcome
 
  history
 
  publications
 
> user's guide
 
  updates
 
  acknowledgments
 
  terms for data use
 
  clients & cookies

User's Guide
 
  project summary
 
> content resources
 
  core technologies

Content Resources
 
  overview
 
  wx products
 
  product helpers
 
  concept helpers
 
> online guides

online guides
 
  overview
 
  cold fronts
 
  precipitation
 
> cyclones

User Interface
 
  graphics
> text

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From The Developers...

Key words within the guide pages will be linked to other guide pages and concept helpers...allowing the user to access a wide variety of topics with just a few clicks.


Cyclones and Associated Cold Front
leading edge of colder air mass

The diagram below shows a cyclone complete with warm and cold fronts. The cold front typically extends to the south from the center of low pressure while the warm front extends to the east (ahead of the storm). At low levels, several air masses of distinctly different origin may be found in varying parts of the cyclone. To the east of the cyclone, the moist air mass is moving to the north behind the warm front. The cold front marks the leading edge of a colder and drier air mass. Driven by counterclockwise winds around the center of low pressure (shown by the arrows), the cold air mass is dragged southward by north and westerly winds behind the low.

Clouds and precipitation often develop along and ahead of the cold front as the colder air mass lifts the warm moist air mass ahead of it.



precipitation
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.

Core Technologies