SPC Severe Thunderstorm Watch 646
WW 646 SEVERE TSTM CO UT WY 251920Z – 260200Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 646 NWS Storm Prediction Center Norman OK 120 PM MDT Sun Aug 25 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Western Colorado Eastern Utah Southern Wyoming * Effective this Sunday afternoon and evening from 120 PM until 800 PM MDT. * Primary threats include... Scattered large hail and isolated very large hail events to 2 inches in diameter possible Scattered damaging wind gusts to 70 mph possible SUMMARY...Scattered storms, including some supercells, will continue to develop and increase across the region, with large hail and severe-caliber wind gusts possible through early/mid-evening. The severe thunderstorm watch area is approximately along and 80 statute miles east and west of a line from 50 miles north northeast of Rock Springs WY to 45 miles south southwest of Blanding UT. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU6). 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 2 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 450. Mean storm motion vector 23030. ...Guyer
