WWUS20 KWNS 210129 SEL9 SPC WW 210129 WIZ000-210600- URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 539 NWS Storm Prediction Center Norman OK 830 PM CDT Tue Sep 20 2022 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of West central Wisconsin * Effective this Tuesday night and Wednesday morning from 830 PM until 100 AM CDT. * Primary threats include... Scattered large hail and isolated very large hail events to 2 inches in diameter possible Isolated damaging wind gusts to 60 mph possible SUMMARY...A small cluster of supercells near the Mississippi River will move east-southeastward into west central Wisconsin, with attendant threats of large hail (1.5 to 2.0 inches in diameter) and isolated outflow gusts up to 60 mph. The severe thunderstorm watch area is approximately along and 35 statute miles north and south of a line from 60 miles west of Eau Claire WI to 60 miles east of Eau Claire WI. 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 inches. Extreme turbulence and surface wind gusts to 50 knots. A few cumulonimbi with maximum tops to 550. Mean storm motion vector 29030. ...Thompson