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SEL8 URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 338 NWS Storm Prediction Center Norman OK 810 PM CDT Mon May 27 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of South Texas * Effective this Monday night from 810 PM until Midnight CDT. * Primary threats include... Scattered damaging wind gusts to 70 mph possible Isolated very large hail events to 2.5 inches in diameter possible SUMMARY...A cluster or two of severe thunderstorms will likely move across the Rio Grande into South Texas this evening. The stronger storms will be capable of severe gusts (60-70 mph) and large to very large hail (up to 2.5 inches in diameter). This activity will likely diminish by late evening into the early overnight. The severe thunderstorm watch area is approximately along and 45 statute miles east and west of a line from 10 miles north northwest of Cotulla TX to 15 miles west southwest of Mcallen TX. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU8). 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 334...WW 335...WW 336...WW 337... AVIATION...A few severe thunderstorms with hail surface and aloft to 2.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 550. Mean storm motion vector 21030. ...Smith