WW2010
University of Illinois

WW2010
 
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Online Guides
 
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> reading maps
 
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Reading Maps
 
  introduction
 
  utc conversions
 
  temp conversions
 
  surface obs
 
> surface maps
 
  upper air obs

Surface Maps
 
  temperature maps
 
> dew point maps
 
  pressure maps
 
  observation maps

Dew Point Maps
 
  dew point reports
 
> dew point & pres

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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Pressure and Dew point

[Image: (26K)]
Reference Weather Map

Current Weather Map

This panel depicts sea-level pressure and dew point temperature. This chart is useful for finding fronts and high and low pressure systems.

The solid black contours represent pressure contours (isobars) in millibars. The isobars have a contour interval of four millibars. The wind speed is directly related to the distance between the isobars. The closer the isobars are together, the stronger the pressure gradient, and the stronger the wind.

The dashed color filled regions represent areas of equal dew point (isodrosotherms). The contour interval of the dew point contours is five degrees Fahrenheit. From the map above you can sometimes find warm fronts, cold fronts, and drylines. Fronts are usually located where the dew point changes drastically over a short distance.



dew point reports
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.

Pressure Maps