SPC Severe Thunderstorm Watch 557
WW 557 SEVERE TSTM CO NE SD 192300Z – 200500Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 557 NWS Storm Prediction Center Norman OK 500 PM MDT Fri Jul 19 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Far Northeast Colorado Western and Central Nebraska Southwest South Dakota * Effective this Friday afternoon and evening from 500 PM until 1100 PM MDT. * Primary threats include... Scattered damaging winds and isolated significant gusts to 75 mph possible Scattered large hail and isolated very large hail events to 2 inches in diameter possible SUMMARY...Ongoing supercells should continue to pose a threat for large hail up to 1-2 inches in diameter as they move generally southward this evening. Some threat for damaging winds around 60-75 mph may also exist, especially if a thunderstorm cluster can develop later this evening. The severe thunderstorm watch area is approximately along and 60 statute miles east and west of a line from 5 miles east northeast of Rapid City SD to 35 miles west southwest of North Platte NE. 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 555...WW 556... AVIATION...A few severe thunderstorms with hail surface and aloft to 2 inches. Extreme turbulence and surface wind gusts to 65 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 35025. ...Gleason
