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Properties of the Atmosphere
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Forecasting and Simulating Severe Weather
Atmospheric Stability
Forces and Force Balances
The Development of High- and Low-Pressure Systems
Airmasses and Fronts
Extratropical Cyclones Forming East of the Rocky Mountains
Extratropical Cyclones Forming Along the East and Gulf Coasts
Freezing Precipitation and Ice Storms
Lake Effect Snowstorms
Cold Waves
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El Niño, La Niña, and the Southern Oscillation
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Heat Waves

Frozen Precipitation and Ice Storms

Record Breaking Ice Storm in the Southern Plains, 29 to 31 January 2002: View animations of 300mb and 850mb flow, national radar, and forecasts of precipitation including freezing precipitation.
The Worst Ice Storm in Canadian History - January 1998: View animations of infrared satellite, water vapor satellite, surface temperature and dewpoint temperature, sea level pressure, and 3-hr surface pressure tendency.
Related Web Sites
Current Icing Potential Current information on the potential for aircraft icing.
Aircraft Icing Conditions NOAA images and forecasts of potential aircraft icing.
Oklahoma Ice Storm of January 2002 Learn more about the ice storm that affected portions of northern Oklahoma mid-winter 2002.
The Ice Storm of Janaury 1998 Learn more about the record breaking ice storm of January 1998 including history and cause of the storm as well as forecasts, warnings, and damage.
Detecting Freezing Rain Read more about the freezing rain sensor used by the National Weather Service to detect freezing precipitation.

Department of Atmospheric Sciences Severe and Hazardous Weather at Department of Atmospheric Sciences University of Illinois
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