Severe Local Storm Watch and Watch Cancellation Msg
Issued by NWS
Issued by NWS
870 WWUS20 KWNS 230034 SEL7 SPC WW 230034 IAZ000-ILZ000-INZ000-MOZ000-LMZ000-230600- URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 447 NWS Storm Prediction Center Norman OK 735 PM CDT Sat Jun 22 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southern and Eastern Iowa Northern and Western Illinois Far Northwest Indiana Northern Missouri Lake Michigan * Effective this Saturday night and Sunday morning from 735 PM until 100 AM CDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely Isolated large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...Thunderstorms occurring along and ahead of a cold front should pose some threat for severe/damaging winds up to 60-70 mph this evening while the move generally eastward. Isolated severe hail around 1-1.5 inches in diameter also appears possible. A tornado or two may occur in/near northern Illinois. The severe thunderstorm watch area is approximately along and 55 statute miles north and south of a line from 30 miles south southwest of Lamoni IA to 60 miles east northeast of Marseilles IL. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU7). 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 446... 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 27035. ...Gleason