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SEL1 URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 621 NWS Storm Prediction Center Norman OK 1130 PM CDT Tue Aug 13 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Central and south-central Nebraska * Effective this Tuesday night and Wednesday morning from 1130 PM until 700 AM CDT. * Primary threats include... Isolated damaging wind gusts to 70 mph possible Isolated large hail events to 1.5 inches in diameter possible SUMMARY...A cluster of occasionally severe thunderstorms -- which produced a 60-kt at MCK during the last half hour -- will maintain severe potential into the watch area before weakening later tonight. Isolated large hail also may occur, either in the main MCS or in precursory convection. The severe thunderstorm watch area is approximately along and 50 statute miles east and west of a line from 50 miles south southwest of Kearney NE to 30 miles northeast of Broken Bow NE. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU1). 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 620... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 550. Mean storm motion vector 27030. ...Edwards