Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for Watch Status Reports.
SEL4 URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 624 NWS Storm Prediction Center Norman OK 540 PM CDT Thu Aug 15 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southern Illinois Extreme southwestern Indiana Northwestern Kentucky Southeastern Missouri * Effective this Thursday afternoon from 540 PM until Midnight CDT. * Primary threats include... Scattered damaging wind gusts to 70 mph possible Isolated large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...A growing cluster of strong-severe thunderstorms should continue to pose severe-weather potential across southern IL and to the adjoining Ohio Valley. Additional development is possible over southeastern Missouri to its west as well. Occasional severe gusts and large hail are the main concerns, and a tornado cannot be ruled out The severe thunderstorm watch area is approximately along and 35 statute miles north and south of a line from 45 miles west southwest of Farmington MO to 30 miles south southeast of Evansville IN. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU4). 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 623... 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 600. Mean storm motion vector 28025. ...Edwards