WW2010
University of Illinois

WW2010
 
  welcome
 
> online guides
 
  archives
 
  educational cd-rom
 
  current weather
 
  about ww2010
 
  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

Weather Forecasting
 
  introduction
 
  methods
 
> surface features
 
  temperatures
 
  precipitation

Surface Features
 
  anticyclones
 
  cyclones
 
  cold fronts
 
  warm fronts
 
> stationary fronts
 
  occluded fronts
 
  dry lines

User Interface
 
  graphics
> text

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Stationary Fronts
runway for cyclones

A stationary front is simply a front that is not moving. It is represented by alternating blue and red lines with blue triangles pointing towards the warmer air and red semicircles pointing towards the colder air.

Weather conditions greatly depend upon which side of the front a location is positioned. If a stationary front is nearby and a low pressure center is approaching along the front, heavy amounts of precipitation are possible.

[Image: surface map with stationary front analyzed (47K)]
Image by: WXP Purdue

There is usually a noticeable change in temperature and wind shift crossing from one side of a stationary front to the other. Low pressure centers sometimes migrate along stationary fronts, dumping heavy amounts of precipitation in their path. Such a scenario has been depicted above. The alternating red and blue line is the stationary front and the blue and green swatches indicate precipitation.



warm fronts
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.

occluded fronts