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Freezing Precipitation and Ice Storms

Online 12.1: The January 2007 North American Ice Storm: A series of storms produced waves of ice accumulation over a period of several days in January 2007 resulting in large ice accumulations and heavy snow. In Oklahoma and Missouri over 4 inches of ice accumulated. The storms resulted in and estimated $380 million in damages and over 85 fatalities. Soundings from the storms illustrate the critical vertical temperature structure required to produce freezing rain.
Online 12.2: 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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