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SEL9 URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 579 NWS Storm Prediction Center Norman OK 1215 PM CDT Wed Jul 31 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Western and Central Minnesota Southeast North Dakota Central and Eastern South Dakota * Effective this Wednesday afternoon and evening from 1215 PM until 700 PM CDT. * Primary threats include... Scattered damaging winds and isolated significant gusts to 80 mph likely Scattered large hail likely with isolated very large hail events to 2.5 inches in diameter possible A tornado or two possible SUMMARY...Multiple clusters of thunderstorms will likely produce scattered to numerous severe/damaging winds up to 65-80 mph this afternoon as they move east-northeastward. Supercells should develop and pose a greater threat for severe hail generally around 1.5-2.5 inches in diameter, especially in parts of central to northeast South Dakota. A tornado or two also appears possible. The severe thunderstorm watch area is approximately along and 75 statute miles north and south of a line from 90 miles west southwest of Aberdeen SD to 50 miles northeast of Alexandria MN. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU9). 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. && AVIATION...A few severe thunderstorms with hail surface and aloft to 2.5 inches. Extreme turbulence and surface wind gusts to 70 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 27035. ...Gleason