National Weather Service United States Department of Commerce

Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Overview

Scattered thunderstorms developed late in the afternoon across portions of northern Illinois and northwest Indiana, along an approaching area of low pressure and associated front. This thunderstorm activity continued into the evening, intensifying as coverage also increased mainly over northern Illinois. There were several reports of hail and damaging winds associated with these thunderstorms. By mid to late evening, a more organized complex of storms pushed through east central Illinois, with significant winds up to 80 MPH occurring with this complex. These storms would eventually move into northwest Indiana, producing damaging winds and also heavy rainfall and flooding.
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