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* stats delayed and were probably not accurate to begin with
A well-organized cluster of storms with a history of wind damage and measured severe gusts, including a measured 74 mph wind gust at the Des Moines airport around 1250 am CDT, will continue eastward into eastern Iowa, and perhaps northwest Illinois, including the I-80 corridor.
SEL4 URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 504 NWS Storm Prediction Center Norman OK 115 AM CDT Fri Jul 11 2025 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Eastern Iowa Northwest Illinois * Effective this Friday morning from 115 AM until 600 AM CDT. * Primary threats include... Scattered damaging wind gusts to 70 mph possible Isolated large hail events to 1 inch in diameter possible A tornado or two possible SUMMARY...A well-organized cluster of storms with a history of wind damage and measured severe gusts, including a measured 74 mph wind gust at the Des Moines airport around 1250 am CDT, will continue eastward into eastern Iowa, and perhaps northwest Illinois, including the I-80 corridor. The severe thunderstorm watch area is approximately along and 30 statute miles north and south of a line from 90 miles west of Moline IL to 10 miles south of Moline IL. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU4). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings. Severe thunderstorms can and occasionally do produce tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 503... AVIATION...A few severe thunderstorms with hail surface and aloft to 1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 550. Mean storm motion vector 27040. ...Guyer
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