SPC
SPC Severe Thunderstorm Watch 584
WW 584 SEVERE TSTM IA MO 312315Z – 010600Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 584 NWS Storm Prediction Center Norman OK 615 PM CDT Wed Jul 31 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Western and Central Iowa Northern Missouri * Effective this Wednesday night and Thursday morning from 615 PM until 100 AM CDT. * Primary threats include... Widespread damaging winds and isolated significant gusts to 90 mph likely Isolated large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...An intense severe-wind producing bow echo will continue eastward this evening into western and central Iowa and perhaps adjacent parts of northern Missouri. Numerous to widespread severe gusts (60-90 mph), and perhaps a tornado, are the primary hazards with this squall line as it moves east into the Watch area. The severe thunderstorm watch area is approximately along and 85 statute miles east and west of a line from 45 miles north northwest of Des Moines IA to 35 miles south southwest of Lamoni 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 579...WW 580...WW 581...WW 582...WW 583... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 80 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 26045. ...Smith
SPC Severe Thunderstorm Watch 583
WW 583 SEVERE TSTM KS 312250Z – 010600Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 583 NWS Storm Prediction Center Norman OK 550 PM CDT Wed Jul 31 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Central and Northeast Kansas * Effective this Wednesday afternoon and Thursday morning from 550 PM until 100 AM CDT. * Primary threats include... Scattered damaging winds and isolated significant gusts to 80 mph likely Scattered large hail and isolated very large hail events to 2 inches in diameter possible SUMMARY...A cluster of organizing severe thunderstorms across northern Kansas will gradually move into the Watch area this evening. Upscale growth into one or two linear clusters is forecast. Severe gusts (60-80 mph) and large to very large hail (1 to 2 inches in diameter) will be the primary hazards with the stronger storms. The severe thunderstorm watch area is approximately along and 40 statute miles north and south of a line from 85 miles west southwest of Russell KS to 25 miles north northeast of Topeka KS. 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 579...WW 580...WW 581...WW 582... AVIATION...A few severe thunderstorms with hail surface and aloft to 2 inches. Extreme turbulence and surface wind gusts to 70 knots. A few cumulonimbi with maximum tops to 550. Mean storm motion vector 28015. ...Smith
SPC Severe Thunderstorm Watch 582
WW 582 SEVERE TSTM IA KS NE 312000Z – 010300Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 582 NWS Storm Prediction Center Norman OK 300 PM CDT Wed Jul 31 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Far Southwest Iowa Northern Kansas South-Cenntral into Eastern Nebraska * Effective this Wednesday afternoon and evening from 300 PM until 1000 PM CDT. * Primary threats include... Scattered damaging winds and isolated significant gusts to 80 mph likely Scattered large hail and isolated very large hail events to 2 inches in diameter possible SUMMARY...Thunderstorms should continue to increase in coverage and intensity this afternoon as the move generally eastward. With a favorable environment in place, severe/damaging winds up to 65-80 mph appear likely. Some hail around 1-2 inches in diameter may also occur with any sustained supercell. The severe thunderstorm watch area is approximately along and 80 statute miles east and west of a line from 55 miles east of Hill City KS to 45 miles northwest of Omaha NE. 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 579...WW 580...WW 581... AVIATION...A few severe thunderstorms with hail surface and aloft to 2 inches. Extreme turbulence and surface wind gusts to 70 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 27035. ...Gleason
SPC Severe Thunderstorm Watch 581
WW 581 SEVERE TSTM MN WI LS 311910Z – 010000Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 581 NWS Storm Prediction Center Norman OK 210 PM CDT Wed Jul 31 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Northeast Minnesota Far Northwest Wisconsin Lake Superior * Effective this Wednesday afternoon and evening from 210 PM until 700 PM 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 well-organized, bowing complex of thunderstorms should continue to pose a threat for mainly severe/damaging winds up to around 65-75 mph as it moves quickly east-northeastward this afternoon and early evening. The severe thunderstorm watch area is approximately along and 50 statute miles east and west of a line from 40 miles northwest of Hibbing MN to 75 miles south southwest of Duluth 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 579...WW 580... 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 26040. ...Gleason
SPC Severe Thunderstorm Watch 580
WW 580 SEVERE TSTM IL IN KY 311755Z – 010000Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 580 NWS Storm Prediction Center Norman OK 155 PM EDT Wed Jul 31 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Far Southeast Illinois Southern Indiana Western and Central Kentucky * Effective this Wednesday afternoon and evening from 155 PM until 800 PM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely SUMMARY...A developing cluster of thunderstorms should continue to strengthen and pose a threat for mainly severe/damaging winds up to 55-70 mph as it moves east-southeastward this afternoon and early evening. The severe thunderstorm watch area is approximately along and 50 statute miles north and south of a line from 40 miles north of Evansville IN to 20 miles east northeast of Lexington KY. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU0). 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 579... AVIATION...A few severe thunderstorms with hail surface and aloft to 1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 30035. ...Gleason