One of the most memorable tornado outbreaks in Illinois history occurred on April 19, 1996. During the day, 33 tornadoes were reported as supercells erupted and moved across the state during the afternoon and evening hours. Wind estimates in excess of 170 mph were associated with some of the stronger tornadoes, one of which ripped through nearby Ogden, IL.

Last Update: 07/27/97
From The Chase
Images captured by storm interceptors of three tornadoes.

The Damage
Photographs of the damage in Ogden, IL inflicted by an F3 tornado.

How it Happened
An analysis of the atmospheric conditions that led to the tornado outbreak.

NEXRAD Close Ups
A close up look at the Doppler Tornado Vortex Signatures associated with six different tornadoes.

Weather Data and Images
Archived maps and images, including NEXRADs.

Those who contributed to the development of this case study.

The navigation menu (left) for this module is called "4/19 IL Tornadoes " and the menu items are arranged in a recommended sequence, beginning with this introduction. In addition, this entire web server is accessible in both "graphics" and "text"-based modes, a feature controlled from the blue "User Interface" menu (located beneath the black navigation menus). More information about the user interface options, the navigation system, or WW2010 in general is accessible from About This Server.

Satellite Images
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.

From the Chase