WW 580 SEVERE TSTM IL MO 030055Z – 030800Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 580 NWS Storm Prediction Center Norman OK 755 PM CDT Wed Aug 2 2023 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Far Southwest and West-Central Illinois Central and Southeast Missouri * Effective this Wednesday night and Thursday morning from 755 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...Thunderstorms coverage and intensity is expected to increase this evening across central Missouri and eastward into west-central Illinois. Environmental conditions support storms capable of large hail, particularly with early evening development that remains more cellular. Some transition into more of a linear storm mode, with an attendant threat for damaging gusts, is also possible if storms are able to organize along their outflow/cold pools. The severe thunderstorm watch area is approximately along and 60 statute miles north and south of a line from 25 miles west northwest of Knob Noster MO to 50 miles east southeast of Farmington MO. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU0). 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 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 29030. ...Mosier
