National Weather Service United States Department of Commerce

Slight Risk for Excessive Rainfall and Severe Thunderstorms Thursday

Additional rounds of thunderstorms are expected Thursday and Thursday night across Oklahoma and north Texas, with risks for both large hail and flash flooding. Strong winds may accompany any storms from east Texas northeast through the lower Great Lakes. Read More >

 

Water Vapor Satellite Loop from 345 pm est to 700 pm est August 8th, 2005

 

 
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Note the cyclonic spin aloft over northeast Illinois and northwest Indiana. This shortwave trough provided sufficient upward forcing for unstable surface parcels to freely convect across northern Indiana.