WW 431 SEVERE TSTM AR KS MO OK 180230Z – 180900Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 431 NWS Storm Prediction Center Norman OK 930 PM CDT Tue Jun 17 2025 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Far Northwest Arkansas South-Central into Southeast Kansas Far Southwest Missouri Central and Eastern Oklahoma * Effective this Tuesday night and Wednesday morning from 930 PM until 400 AM CDT. * Primary threats include... Widespread damaging winds and isolated significant gusts to 85 mph likely Scattered large hail likely with isolated very large hail events to 2 inches in diameter possible A tornado or two possible SUMMARY...A pair severe thunderstorm clusters are ongoing across OK, one across west-central OK and the other across northeast OK. Both of these clusters will continue to surge eastward over the next several hours. Strong gusts to 80-85 mph are possible with these storms. There is also a low-probability tornado risk with these clusters. Additional thunderstorms are ongoing across south-central KS. Large hail is currently the primary risk with these storms although there is with some potential for linear development with this activity as well. In general, the severe threat is expected to move from west to east across the region tonight. The severe thunderstorm watch area is approximately along and 80 statute miles east and west of a line from 20 miles north northeast of Chanute KS to 35 miles southeast of Chickasha OK. 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 429...WW 430... AVIATION...A few severe thunderstorms with hail surface and aloft to 2 inches. Extreme turbulence and surface wind gusts to 75 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 27035. ...Mosier