Topics
Home Current Weather Forecast Links Archived Data Archived Events
Properties of the Atmosphere
Meteorological Measurements
Weather Maps
Forecasting and Simulating Severe Weather
Climate, Climate Change, and Global Warming
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

Thunderstorms

Online 18.1: An MCS Squall Line A mature squall line produces strong-straight lined winds associated with a bow echo as it moves over Missouri.
Online 18.2: Parallel Squall Lines: Multiple squall lines developed across Illinois on 25 June 1997, when outflow from an original squall line triggered new convection. This process repeated throughout the day with three distinct squall lines visible on Doppler radar by 2300 UTC.

Courtesy of Brian Jewett, University of Illinois

Online 18.3: Vertical Wind Shear and Storm Structure: A numerical model shows the development of a thunderstorm.

Courtesy of Brian Jewett, University of Illinois

Online 18.4: Views of Supercells: Examine photos of supercell thunderstorms from a distance and up close.

Photos courtesy of Brian Jewett, University of Illinois

Online 18.5: Record-Breaking Supercell on March 12, 2006: Radar animations with warning during a supercell thunderstorm outbreak illustrate the large number of warnings that can be issued simultaneously.

Photos courtesy of Brian Jewett, University of Illinois

Related Web Sites
Storm Prediction Center Monitor severe weather conditions by reading discussions and outlooks provided by the Storm Prediction Center.
About Derechos Overview of Derechos (types, climatology, historic events)
Storm Spotters Guide Learn how to identify severe storms.
WW2010 Guide to Severe Storms Familiarize yourself with research into severe storms including how storms are modeled and how the results are visualized.
Thunderstorm Fact Sheet from FEMA Learn what to do before and during a severe thunderstorm.

Department of Atmospheric Sciences Severe and Hazardous Weather at Department of Atmospheric Sciences University of Illinois
send comments about this site