Day: August 26, 2024
SPC Severe Thunderstorm Watch 654
WW 654 SEVERE TSTM IA MN NE SD 270355Z – 271100Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 654 NWS Storm Prediction Center Norman OK 1055 PM CDT Mon Aug 26 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Northwest Iowa Southwest Minnesota Northern Nebraska Southeast South Dakota * Effective this Monday night and Tuesday morning from 1055 PM until 600 AM CDT. * 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...Mainly elevated thunderstorms should pose some threat for severe hail up to 1-2 inches in diameter as they move generally east-northeastward through the overnight hours. If these thunderstorms can consolidate into a cluster, then a threat for severe/damaging winds around 60-70 mph may be realized. The severe thunderstorm watch area is approximately along and 50 statute miles north and south of a line from 10 miles southwest of Valentine NE to 25 miles north northeast of Spencer IA. 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...CONTINUE...WW 650...WW 651...WW 653... 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 500. Mean storm motion vector 26035. ...Gleason
SPC Severe Thunderstorm Watch 653
WW 653 SEVERE TSTM MN WI LM 270140Z – 270900Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 653 NWS Storm Prediction Center Norman OK 840 PM CDT Mon Aug 26 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Far Southeast Minnesota Northern and Central Wisconsin Lake Michigan * Effective this Monday night and Tuesday morning from 840 PM until 400 AM CDT. * Primary threats include... Scattered damaging winds likely with isolated significant gusts to 75 mph possible Isolated large hail events to 1.5 inches in diameter possible SUMMARY...A bowing complex of thunderstorms should continue to pose a threat for mainly severe/damaging winds around 60-70 mph as it moves east-southeastward this evening and overnight. The severe thunderstorm watch area is approximately along and 70 statute miles north and south of a line from 85 miles west northwest of Wausau WI to 40 miles northeast of Manitowoc WI. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU3). 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 650...WW 651... 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 550. Mean storm motion vector 28035. ...Gleason
New tropical disturbance being tracked in Atlantic as hurricane season nears peak
As the peak of the Atlantic hurricane season approaches, the National Hurricane Center has flagged a new area to watch for development over the Labor Day weekend or early next week.
SPC Severe Thunderstorm Watch 652
WW 652 SEVERE TSTM IA MN NE SD 262250Z – 270400Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 652 NWS Storm Prediction Center Norman OK 550 PM CDT Mon Aug 26 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Northwest Iowa Southwest Minnesota Northeast Nebraska Far Southeast South Dakota * Effective this Monday afternoon and evening from 550 PM until 1100 PM CDT. * Primary threats include... Scattered large hail and isolated very large hail events to 2.5 inches in diameter likely Scattered damaging winds and isolated significant gusts to 75 mph possible A tornado or two possible SUMMARY...Supercell thunderstorms should continue to move eastward across northeast Nebraska and vicinity while posing a threat for large hail around 1.5-2.5 inches in diameter. Severe winds mainly around 60-70 mph may also occur, with additional intense thunderstorms possibly developing over the next few hours along a surface boundary into northwest Iowa and southwest Minnesota. The severe thunderstorm watch area is approximately along and 35 statute miles north and south of a line from 50 miles southwest of Yankton SD to 10 miles east southeast of Spencer IA. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU2). 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 648...WW 649...WW 650...WW 651... AVIATION...A few severe thunderstorms with hail surface and aloft to 2.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A few cumulonimbi with maximum tops to 600. Mean storm motion vector 27030. ...Gleason
SPC Severe Thunderstorm Watch 651
WW 651 SEVERE TSTM MN WI 262215Z – 270400Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 651 NWS Storm Prediction Center Norman OK 515 PM CDT Mon Aug 26 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southern and Central Minnesota Western Wisconsin * Effective this Monday afternoon and evening from 515 PM until 1100 PM CDT. * Primary threats include... Scattered damaging winds likely with isolated significant gusts to 75 mph possible Scattered large hail and isolated very large hail events to 2 inches in diameter possible A tornado or two possible SUMMARY...A small thunderstorm cluster should continue moving east-southeastward this afternoon and evening while posing a threat for mainly severe/damaging winds around 60-70 mph. Isolated significant gusts to 75 mph, along with large hail around 1-2 inches in diameter, may also occur. The severe thunderstorm watch area is approximately along and 40 statute miles north and south of a line from 45 miles west northwest of Mankato MN to 80 miles east northeast of Minneapolis MN. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU1). 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 648...WW 649...WW 650... 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 28025. ...Gleason
