666 WWUS20 KWNS 092300 SEL7 SPC WW 092300 ARZ000-ILZ000-KYZ000-MOZ000-TNZ000-100500- URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 477 NWS Storm Prediction Center Norman OK 600 PM CDT Thu Jul 9 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Extreme northeast Arkansas Extreme southern Illinois Extreme western Kentucky Southern Missouri Extreme northwest Tennessee * Effective this Thursday night from 600 PM until Midnight CDT. * Primary threats include... Scattered damaging wind gusts to 70 mph possible Isolated large hail events to 1 inch in diameter possible A tornado or two possible SUMMARY...Clusters of storms will spread east-southeastward from southeast Missouri into adjacent areas of Arkansas, Kentucky and Illinois, with the potential to produce occasional wind damage. Additional storm development is expected in southern Missouri where a mix of multicell clusters and supercells will be capable of producing occasional wind damage, isolated large hail and possibly an isolated tornado or two. The severe thunderstorm watch area is approximately along and 35 statute miles north and south of a line from 30 miles north northwest of Springfield MO to 50 miles southeast of Cape Girardeau MO. 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 474...WW 475...WW 476... AVIATION...A few severe thunderstorms with hail surface and aloft to 1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 600. Mean storm motion vector 31020. ...Thompson