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SEL4 URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 204 NWS Storm Prediction Center Norman OK 245 PM CDT Wed May 10 2017 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Southwest Oklahoma Northwest Texas * Effective this Wednesday afternoon and evening from 245 PM until 1000 PM CDT. * Primary threats include... A few tornadoes possible Scattered large hail and isolated very large hail events to 3 inches in diameter possible Isolated damaging wind gusts to 70 mph possible SUMMARY...Severe thunderstorms will continue to develop and increase this afternoon, initially near the intersection of the dryline and a modifying outflow boundary that extends northeastward into southwest Oklahoma. Very large hail will be the primary risk, but damaging winds are also possible, and a tornado risk exists especially later today and/or near the modifying outflow boundary. The tornado watch area is approximately along and 55 statute miles north and south of a line from 85 miles west southwest of Childress TX to 20 miles south southeast of Fort Sill OK. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU4). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for tornadoes and 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. && OTHER WATCH INFORMATION...CONTINUE...WW 203... AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 3 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 550. Mean storm motion vector 24025. ...Guyer