WW2010
University of Illinois

WW2010
 
  welcome
 
> online guides
 
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  current weather
 
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  index

Online Guides
 
  introduction
 
> meteorology
 
  remote sensing
 
  reading maps
 
  projects, activities

Meteorology
 
  introduction
 
> air masses, fronts
 
  clouds, precipitation
 
  el nino
 
  forces, winds
 
  hurricanes
 
  hydrologic cycle
 
  light, optics
 
  midlatitude cyclones
 
  severe storms
 
  weather forecasting

Air Masses, Fronts
 
  introduction
 
  air masses
 
> fronts
 
  advection

Fronts
 
  introduction
 
  stationary front
 
  cold front
 
> warm front
 
  occluded front
 
  dry line

Warm Front
 
  definition
 
  wind shift
 
  higher dew points
 
> cyclones
 
  precipitation

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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Cyclones and Associated Warm Front
leading edge of warmer air mass

Below is a simple model of a cyclone with a cold front extending to the south from the center of low pressure and a warm front extending 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. The warm front marks the leading edge of warm moist air being pulled northward by southerly winds ahead (east) of the low.

Clouds and precipitation usually develop along and ahead of the warm front as warm moist air rides up and over the colder air ahead of it.



higher dew points
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.

precipitation