WW 645 SEVERE TSTM AR OK 140215Z – 140800Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 645 NWS Storm Prediction Center Norman OK 915 PM CDT Sun Aug 13 2023 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Northwest Arkansas Northeast Oklahoma * Effective this Sunday night and Monday morning from 915 PM until 300 AM CDT. * Primary threats include... Scattered damaging wind gusts to 70 mph possible Scattered large hail events to 1.5 inches in diameter possible SUMMARY...Scattered thunderstorms, including a mix of storm clusters and supercells, are expected to form over and move into northeast Oklahoma and northwest Arkansas through early morning Monday. Large hail to 1.5 inches in diameter and damaging gusts of 60-70 mph will be the main severe threats. The severe thunderstorm watch area is approximately along and 40 statute miles north and south of a line from 20 miles south of Ponca City OK to 35 miles south southeast of Monett MO. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU5). 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 642...WW 643...WW 644... 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 27025. ...Thompson
