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SEL4 URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 274 NWS Storm Prediction Center Norman OK 1130 PM CDT Mon May 20 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Extreme western Iowa Extreme north central Kansas Central into eastern Nebraska * Effective this Monday night and Tuesday morning from 1130 PM until 700 AM CDT. * Primary threats include... Widespread damaging winds and isolated significant gusts to 75 mph likely Scattered large hail events to 1.5 inches in diameter likely A tornado or two possible SUMMARY...Ongoing storms with a hail/wind threat may persist for a couple more hours across eastern Nebraska/western Iowa, while storms well to the west will grow upscale into a larger/bowing convective system overnight into central then eastern Nebraska. Damaging wind swaths up to 75 mph will be the main threat, along with large hail up to 1.5 inches in diameter and a tornado or two with embedded circulations. The severe thunderstorm watch area is approximately along and 65 statute miles north and south of a line from 60 miles south southwest of Broken Bow NE to 20 miles northeast of Omaha NE. 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...This severe thunderstorm watch replaces severe thunderstorm watch number 271. Watch number 271 will not be in effect after 1130 PM CDT. CONTINUE...WW 269...WW 272...WW 273... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 25035. ...Thompson