NOAA
SPC Severe Thunderstorm Watch 586
WW 586 SEVERE TSTM IA MN SD 010020Z – 010500Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 586 NWS Storm Prediction Center Norman OK 720 PM CDT Wed Jul 31 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Northwest Iowa Southwest Minnesota Southeast South Dakota * Effective this Wednesday night from 720 PM until Midnight CDT. * Primary threats include... Scattered damaging winds likely with isolated significant gusts to 75 mph possible Scattered large hail events to 1.5 inches in diameter possible A tornado or two possible SUMMARY...Several discrete storms and clusters of thunderstorms are forecast to continue to intensify this evening. Severe gusts (60-75) are possible with the stronger outflow surges. A tornado is possible, especially early this evening. Large hail may accompany the stronger updrafts. Some consolidation into a linear cluster is forecast later this evening into parts of the southwest Minnesota vicinity. The severe thunderstorm watch area is approximately along and 40 statute miles north and south of a line from 55 miles west southwest of Mitchell SD to 30 miles northeast of Worthington MN. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU6). 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 582...WW 583...WW 584...WW 585... 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 29015. ...Smith
SPC Severe Thunderstorm Watch 585
WW 585 SEVERE TSTM MN SD WI 312355Z – 010600Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 585 NWS Storm Prediction Center Norman OK 655 PM CDT Wed Jul 31 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southern into Western Minnesota Northeast South Dakota Western Wisconsin * Effective this Wednesday night and Thursday morning from 655 PM until 100 AM CDT. * Primary threats include... Scattered damaging winds and isolated significant gusts to 75 mph likely Scattered large hail events to 1.5 inches in diameter possible SUMMARY...Several clusters of strong to severe thunderstorms will likely persist into the mid to late evening across the Watch area. Severe gusts (60-75 mph) capable of wind damage appear to be the primary hazard, but large hail (1 to 1.5 inches in diameter) is also possible with the stronger thunderstorm cores. The severe thunderstorm watch area is approximately along and 45 statute miles north and south of a line from 20 miles north of Watertown SD to 55 miles east of Rochester MN. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU5). 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...WW 584... 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 28025. ...Smith
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