Day: July 13, 2024
SPC Severe Thunderstorm Watch 529
WW 529 SEVERE TSTM SD 140430Z – 141100Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 529 NWS Storm Prediction Center Norman OK 1130 PM CDT Sat Jul 13 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Central South Dakota * Effective this Saturday night and Sunday morning from 1130 PM until 600 AM CDT. * Primary threats include... Scattered damaging winds likely with isolated significant gusts to 85 mph possible Isolated large hail events to 1.5 inches in diameter possible SUMMARY...A small but intense bowing cluster will move quickly southeastward from northwest into central South Dakota through the overnight hours. Scattered severe/damaging winds appear likely, with some significant gusts up to around 85 mph possible. Isolated severe hail may occur as well. The severe thunderstorm watch area is approximately along and 60 statute miles east and west of a line from 30 miles north northwest of Mobridge SD to 45 miles south southeast of Pierre SD. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU9). 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 524...WW 526...WW 527...WW 528... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 75 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 30040. ...Gleason
SPC Severe Thunderstorm Watch 528
WW 528 SEVERE TSTM MN WI 140255Z – 140900Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 528 NWS Storm Prediction Center Norman OK 955 PM CDT Sat Jul 13 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Central Minnesota Far West-Central Wisconsin * Effective this Saturday night and Sunday morning from 955 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 A tornado or two possible SUMMARY...A small bowing complex of thunderstorms should move southeastward this evening and overnight, posing a threat for mainly severe/damaging winds around 60-70 mph. Occasionally stronger gusts up to 75 mph appear possible, along with isolated large hail around 1-1.5 inches in diameter. The severe thunderstorm watch area is approximately along and 70 statute miles east and west of a line from 40 miles east northeast of Alexandria MN to 20 miles south southeast of Minneapolis MN. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU8). 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 522...WW 523...WW 524...WW 525...WW 526...WW 527... 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 30035. ...Gleason
SPC Severe Thunderstorm Watch 527
WW 527 SEVERE TSTM SD WY 140235Z – 140900Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 527 NWS Storm Prediction Center Norman OK 835 PM MDT Sat Jul 13 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Western South Dakota Far Northeast Wyoming * Effective this Saturday night and Sunday morning from 835 PM until 300 AM MDT. * 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 SUMMARY...Intense thunderstorms will move quickly southeastward across western South Dakota this evening while posing a threat for severe/damaging winds generally up to 65-75 mph, and large hail around 1-2 inches in diameter. The severe thunderstorm watch area is approximately along and 60 statute miles east and west of a line from 20 miles north of Buffalo SD to 30 miles east southeast of Rapid City SD. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU7). 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 522...WW 523...WW 524...WW 525...WW 526... 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 32040. ...Gleason
SPC Severe Thunderstorm Watch 526
WW 526 SEVERE TSTM IA WI 140030Z – 140500Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 526 NWS Storm Prediction Center Norman OK 730 PM CDT Sat Jul 13 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Northeast Iowa Far Southwest Wisconsin * Effective this Saturday night from 730 PM until Midnight CDT. * Primary threats include... Scattered damaging wind gusts to 70 mph possible Isolated large hail events to 1.5 inches in diameter possible SUMMARY...A small cluster of intense thunderstorms may continue to pose a threat for mainly severe/damaging winds up to 60-70 mph as it develops south-southeastward through the evening. The severe thunderstorm watch area is approximately along and 30 statute miles north and south of a line from 130 miles west northwest of Dubuque IA to 25 miles north northeast of Dubuque IA. 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 522...WW 523...WW 524...WW 525... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 33035. ...Gleason
SPC Severe Thunderstorm Watch 525
WW 525 SEVERE TSTM MT 132330Z – 140600Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 525 NWS Storm Prediction Center Norman OK 530 PM MDT Sat Jul 13 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Southeast Montana * Effective this Saturday afternoon from 530 PM until Midnight MDT. * 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 2.5 inches in diameter possible SUMMARY...Thunderstorms will continue to develop southeastward this evening while posing a threat for scattered large to very large hail (generally 1.5-2.5 inches in diameter). This activity should grow into a small bowing cluster over the next few hours, with a greater threat for severe winds potentially up to 65-75 mph. The severe thunderstorm watch area is approximately along and 55 statute miles north and south of a line from 55 miles west southwest of Miles City MT to 40 miles south southeast of Baker MT. 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 522...WW 523...WW 524... 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 500. Mean storm motion vector 30035. ...Gleason