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

Clouds, Precipitation
 
  introduction
 
  development
 
  cloud types
 
> precipitation

Precipitation
 
  introduction
 
  rain and hail
 
> freezing rain
 
  sleet
 
  snow

Freezing Rain
 
  introduction
 
  definition
 
  dangers
 
  regions
 
  processes
 
  conditions
 
  forecasting
 
> sleet definition

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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All about Sleet
It's slippery

Sleet is less prevalent than freezing rain and it is defined as fronzen raindrops that bounce on impact with the ground or other objects. Sleet is more difficult to forecast than freezing rain because it is formed under more specialized atmospheric conditions. It is very similar to freezing rain in that it causes surfaces to become very slick and causes automobile accidents and falls. It is also different in that it is not clear as glass and can be easily seen.

For sleet to fall the precipitation must begin as snow. Once the snow begins to fall it encounters a shallow layer of warm air and partially melts. The partially melted snow enters the deep cold layer it refreezes into an ice-pellet and becomes sleet.


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.