Topics
Home Current Weather Forecast Links Archived Data Archived Events
Properties of the Atmosphere
Meteorological Measurements
Weather Maps
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
Great Plains Blizzards
Mountain Snowstorms
Mountain Windstorms
Thunderstorms
Tornadoes
Hailstorms
Lightning
Downbursts
El Niño, La Niña, and the Southern Oscillation
Tropical Cyclones
Floods
Drought
Heat Waves

Mountain Snowstorms

Sea Level Pressure & Temperature - The animation shows hourly sea level pressure and temperature data for March 1, 2002. A surface high-pressure system is located over the Northern Plains and a surface low-pressure system is over Arizona. This pressure pattern results in upslope flow in eastern Colorado. The temperature values clearly show below freezing temperatures through all of the Northern Plains and Colorado. This upslope flow, cold temperatures and ample moisture resulted in six to nin inches of snow from Denver to Fort Collins.

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