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Wednesdayâs storm chances will stretch over 1,000 miles from the Northeast into the heart of Texas. The bulk of the activity is expected to impact communities around Dallas and Little Rock with chances of damaging winds and large hail.
WW 283 TORNADO AR 220120Z – 220800Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 283 NWS Storm Prediction Center Norman OK 820 PM CDT Tue May 21 2024 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of North cental and central Arkansas * Effective this Tuesday night and Wednesday morning from 820 PM until 300 AM CDT. * Primary threats include... A couple tornadoes possible Scattered large hail and isolated very large hail events to 2 inches in diameter possible Scattered damaging wind gusts to 70 mph possible SUMMARY...A few supercells will be possible through the early morning hours, in an environment favorable for large hail of 1-2 inches in diameter, damaging gusts of 60-70 mph, and a couple of tornadoes. The tornado watch area is approximately along and 70 statute miles east and west of a line from 35 miles northeast of Flippin AR to 40 miles south southeast of Russellville AR. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU3). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for tornadoes and 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. && OTHER WATCH INFORMATION...CONTINUE...WW 277...WW 278...WW 279...WW 280...WW 281...WW 282... AVIATION...Tornadoes and 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 550. Mean storm motion vector 27025. ...Thompson
WW 282 TORNADO IL 220015Z – 220500Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 282 NWS Storm Prediction Center Norman OK 715 PM CDT Tue May 21 2024 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Northern Illinois * Effective this Tuesday night from 715 PM until Midnight CDT. * Primary threats include... A few tornadoes possible Scattered damaging winds likely with isolated significant gusts to 75 mph possible Isolated large hail events to 1 inch in diameter possible SUMMARY...Severe storms will spread northeastward through early tonight, with a continued threat for a few tornadoes, damaging gusts of 60-75 mph and isolated large hail near 1 inch in diameter. The tornado watch area is approximately along and 60 statute miles east and west of a line from 25 miles north northwest of Rockford IL to 40 miles west southwest of Marseilles IL. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU2). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for tornadoes and 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. && OTHER WATCH INFORMATION...CONTINUE...WW 277...WW 278...WW 279...WW 280...WW 281... AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 1 inch. Extreme turbulence and surface wind gusts to 65 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 24045. ...Thompson
WW 281 TORNADO WI LM 212340Z – 220500Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 281 NWS Storm Prediction Center Norman OK 640 PM CDT Tue May 21 2024 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Central and northeast Wisconsin Lake Michigan * Effective this Tuesday night from 640 PM until Midnight CDT. * Primary threats include... A few tornadoes likely with a couple intense tornadoes possible Widespread damaging winds and isolated significant gusts to 80 mph likely Scattered large hail events to 1 inch in diameter possible SUMMARY...Initial supercells will consolidate into a more solid squall line that will move rapidly northeastward across Wisconsin through early tonight. Embedded circulations will be capable of producing tornadoes (a couple of which could produce roughly EF2 damage), damaging gusts up to 80 mph, and isolated large hail near 1 inch in diameter for the next several hours. The tornado watch area is approximately along and 85 statute miles east and west of a line from 35 miles northeast of Wausau WI to 35 miles southwest of Oshkosh WI. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU1). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for tornadoes and 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. && OTHER WATCH INFORMATION...CONTINUE...WW 277...WW 278...WW 279...WW 280... AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 1 inch. Extreme turbulence and surface wind gusts to 70 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 24050. ...Thompson
The town of Greenfield in southwest Iowa appears to be one of the areas hardest hit by a severe weather outbreak in the Midwest on Tuesday.
WW 280 TORNADO IL MO 212255Z – 220500Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 280 NWS Storm Prediction Center Norman OK 555 PM CDT Tue May 21 2024 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of West central Illinois Eastern into south central Missouri * Effective this Tuesday afternoon from 555 PM until Midnight CDT. * Primary threats include... A few tornadoes likely with a couple intense tornadoes possible Scattered damaging winds likely with isolated significant gusts to 75 mph possible Scattered large hail likely with isolated very large hail events to 2 inches in diameter possible SUMMARY...Scattered supercells and short line segments will remain possible through late evening in a broken band spreading eastward across Missouri toward west central Illinois. The more intense storms will be capable of producing a few tornadoes (one or two of which could be strong), large hail of 1-2 inches in diameter, and damaging gusts of 60-75 mph. The tornado watch area is approximately along and 60 statute miles east and west of a line from 50 miles north of Quincy IL to 25 miles west southwest of West Plains MO. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU0). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for tornadoes and 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. && OTHER WATCH INFORMATION...CONTINUE...WW 277...WW 278...WW 279... AVIATION...Tornadoes and 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 25035. ...Thompson