SPC
SPC Severe Thunderstorm Watch 650
WW 650 SEVERE TSTM MT NE SD WY 262010Z – 270400Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 650 NWS Storm Prediction Center Norman OK 210 PM MDT Mon Aug 26 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Far Southeast Montana Northern Nebraska Western and Southern South Dakota Northeast Wyoming * Effective this Monday afternoon and evening from 210 PM until 1000 PM MDT. * Primary threats include... Scattered damaging winds and isolated significant gusts to 80 mph likely Scattered large hail and isolated very large hail events to 2.5 inches in diameter likely A tornado or two possible SUMMARY...Strong to severe thunderstorms including supercells will continue to develop this afternoon across northeast Wyoming/far southeast Montana into western South Dakota, with additional and more isolated development possible along the South Dakota/Nebraska border vicinity. Clusters of eastward-moving storms should evolve by evening, potentially as a severe-wind producing linear convective system that should move across southern South Dakota and northern Nebraska. The severe thunderstorm watch area is approximately along and 80 statute miles north and south of a line from 90 miles west of Rapid City SD to 50 miles north northeast of Oneill NE. 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 648...WW 649... AVIATION...A few severe thunderstorms with hail surface and aloft to 2.5 inches. Extreme turbulence and surface wind gusts to 70 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 25030. ...Guyer
SPC Severe Thunderstorm Watch 649
WW 649 SEVERE TSTM MN ND 261940Z – 270200Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 649 NWS Storm Prediction Center Norman OK 240 PM CDT Mon Aug 26 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Central Minnesota Southeast North Dakota * Effective this Monday afternoon and evening from 240 PM until 900 PM 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 A tornado or two possible SUMMARY...Scattered strong to severe thunderstorms should continue to develop across far southeast North Dakota into central Minnesota, where the air mass continues to become very unstable. The severe thunderstorm watch area is approximately along and 60 statute miles north and south of a line from 25 miles north northwest of Ortonville MN to 35 miles northeast of Saint Cloud MN. 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 648... 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 28025. ...Guyer
SPC Severe Thunderstorm Watch 648
WW 648 SEVERE TSTM CT MA NH NY RI VT CW 261705Z – 262300Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 648 NWS Storm Prediction Center Norman OK 105 PM EDT Mon Aug 26 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Connecticut Massachusetts Southern New Hampshire Southeast New York Rhode Island Southern Vermont Coastal Waters * Effective this Monday afternoon and evening from 105 PM until 700 PM EDT. * Primary threats include... Scattered damaging wind gusts to 65 mph possible Scattered large hail events to 1.5 inches in diameter possible SUMMARY...Scattered thunderstorms will continue to develop and intensify as they generally move south-southeastward through the afternoon, with the strongest storms capable of hail and locally damaging winds. The severe thunderstorm watch area is approximately along and 75 statute miles east and west of a line from 25 miles north northeast of Keene NH to 25 miles south of Groton CT. 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. && AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 55 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 35025. ...Guyer
SPC – No watches are valid as of Mon Aug 26 05:02:02 UTC 2024
No watches are valid as of Mon Aug 26 05:02:02 UTC 2024.
SPC Severe Thunderstorm Watch 647
WW 647 SEVERE TSTM NE SD 252215Z – 260500Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 647 NWS Storm Prediction Center Norman OK 515 PM CDT Sun Aug 25 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of North-central Nebraska Southeast and East-central South Dakota * Effective this Sunday afternoon from 515 PM until Midnight CDT. * Primary threats include... Scattered damaging winds and isolated significant gusts to 75 mph possible Scattered large hail and isolated very large hail events to 2 inches in diameter possible SUMMARY...Thunderstorms should intensify this evening while posing a threat for large hail around 1-2 inches in diameter, along with severe/damaging winds up to 65-75 mph. This threat should continue through much of the evening as this activity spreads east-northeastward. The severe thunderstorm watch area is approximately along and 50 statute miles east and west of a line from 15 miles north northeast of Huron SD to 30 miles east southeast of Ainsworth NE. 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 646... 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 26025. ...Gleason
