####018002166#### WWUS20 KWNS 100144 SEL2 SPC WW 100144 IAZ000-KSZ000-NEZ000-100900- URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 582 NWS Storm Prediction Center Norman OK 845 PM CDT Sat Aug 9 2025 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southwest Iowa Western and Northern Kansas Southern Nebraska * Effective this Saturday night and Sunday morning from 845 PM until 400 AM CDT. * Primary threats include... Scattered damaging winds likely with isolated significant gusts to 80 mph possible Scattered large hail and isolated very large hail events to 2 inches in diameter possible A tornado or two possible SUMMARY...Clusters of storms across far eastern Colorado/northwest Kansas/southwest Nebraska as of mid-evening (845 pm CDT) will likely continue to spread eastward and organize, potentially into a bowing linear complex. Other storms may develop ahead (east) of it and also intensify within a very unstable air mass. Damaging winds and occasional large hail are the primary severe hazards expected across the region. The severe thunderstorm watch area is approximately along and 70 statute miles north and south of a line from 95 miles west southwest of Hill City KS to 40 miles south southeast of Omaha NE. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU2). 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 581... AVIATION...A few severe thunderstorms with hail surface and aloft to 2 inches. Extreme turbulence and surface wind gusts to 70 knots. A few cumulonimbi with maximum tops to 550. Mean storm motion vector 27030. ...Guyer