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SEL9 URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 339 NWS Storm Prediction Center Norman OK 100 AM CDT Tue May 28 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southern Oklahoma Far north Texas * Effective this Tuesday morning from 100 AM until 700 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 70 mph possible SUMMARY...Elevated storms, some with supercell structure, are likely to persist overnight over southern Oklahoma and adjacent north Texas. Large hail of 1-2 inches in diameter will be the main threat initially, while there could be some increase in the damaging-wind threat closer to sunrise. The severe thunderstorm watch area is approximately along and 70 statute miles east and west of a line from 25 miles east northeast of Fort Sill OK to 60 miles west southwest of Sherman TX. 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 60 knots. A few cumulonimbi with maximum tops to 550. Mean storm motion vector 30020. ...Thompson