NOAA
SPC Severe Thunderstorm Watch 423
WW 423 SEVERE TSTM ND 160500Z – 161100Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 423 NWS Storm Prediction Center Norman OK 1200 AM CDT Sun Jun 16 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Northern and Northeast North Dakota * Effective this Sunday morning from Midnight until 600 AM CDT. * Primary threats include... Scattered damaging winds and isolated significant gusts to 80 mph possible Isolated large hail events to 1 inch in diameter possible SUMMARY...A severe squall line will likely continue east across northern and into northeast North Dakota tonight. Severe gusts (60-80 mph) will be the primary risk with the stronger surges and embedded bowing segments within the thunderstorm band. The severe thunderstorm watch area is approximately along and 55 statute miles north and south of a line from 60 miles west of Devils Lake ND to 25 miles north of Grand Forks ND. 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 421...WW 422... AVIATION...A few severe thunderstorms with hail surface and aloft to 1 inch. Extreme turbulence and surface wind gusts to 70 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 26045. ...Smith
SPC Tornado Watch 422
WW 422 TORNADO ND 160105Z – 160700Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Tornado Watch Number 422 NWS Storm Prediction Center Norman OK 805 PM CDT Sat Jun 15 2024 The NWS Storm Prediction Center has issued a * Tornado Watch for portions of Western and Central North Dakota * Effective this Saturday night and Sunday morning from 805 PM until 200 AM CDT. * Primary threats include... A couple tornadoes possible Scattered damaging winds and isolated significant gusts to 85 mph likely Scattered large hail and isolated very large hail events to 2 inches in diameter possible SUMMARY...A couple of isolated severe thunderstorms are possible early this evening. Large to very large hail and a tornado are possible with this activity. A band of severe thunderstorms is forecast to move from west to east from western into central portions of North Dakota later this evening into tonight. Severe gusts (60-85 mph) will be the primary hazard with the stronger outflow surges. The tornado watch area is approximately along and 80 statute miles east and west of a line from 65 miles northwest of Minot ND to 60 miles south southeast of Dickinson ND. For a complete depiction of the watch see the associated watch outline update (WOUS64 KWNS WOU2). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Tornado Watch means conditions are favorable for tornadoes and 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. && OTHER WATCH INFORMATION...CONTINUE...WW 417...WW 418...WW 419...WW 420...WW 421... AVIATION...Tornadoes and a few severe thunderstorms with hail surface and aloft to 2 inches. Extreme turbulence and surface wind gusts to 75 knots. A few cumulonimbi with maximum tops to 500. Mean storm motion vector 26040. ...Smith
SPC Severe Thunderstorm Watch 421
WW 421 SEVERE TSTM IA KS MO 160025Z – 160700Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 421 NWS Storm Prediction Center Norman OK 725 PM CDT Sat Jun 15 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Western and Central Iowa Far Northeastern Kansas Northwest Missouri * Effective this Saturday night and Sunday morning from 725 PM until 200 AM CDT. * Primary threats include... Scattered damaging winds and 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 squall line will move northeastward into the Watch area this evening. Severe gusts (60-75 mph) are possible with the more intense portions of the squall line as it likely progresses west to east across much of the Watch area. A tornado is possible, especially with any longer-lived mesovortex circulation embedded within the line. A large hail risk may accompany more cellular storms later this evening into the early overnight. The severe thunderstorm watch area is approximately along and 55 statute miles east and west of a line from 15 miles north northeast of Fort Dodge IA to 40 miles west of Chillicothe MO. 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 417...WW 418...WW 419...WW 420... 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 23035. ...Smith
SPC Severe Thunderstorm Watch 420
WW 420 SEVERE TSTM MT 152155Z – 160300Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 420 NWS Storm Prediction Center Norman OK 355 PM MDT Sat Jun 15 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Central and Eastern Montana * Effective this Saturday afternoon and evening from 355 PM until 900 PM MDT. * Primary threats include... Scattered damaging winds and isolated significant gusts to 85 mph likely Isolated very large hail events to 2 inches in diameter possible A tornado or two possible SUMMARY...An intensifying broken band of thunderstorms is forecast to grow upscale into a squall line this afternoon and into the evening across the Watch area. Severe gusts (60-85 mph) will be the primary hazard with the band of storms. Large hail may accompany any more discrete storm on the south flank of the evolving thunderstorm activity during the evening, as well as perhaps a brief risk for a tornado. The severe thunderstorm watch area is approximately along and 95 statute miles east and west of a line from 55 miles north northeast of Glasgow MT to 35 miles south southwest of Miles City MT. 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 417...WW 418...WW 419... AVIATION...A few severe thunderstorms with hail surface and aloft to 2 inches. Extreme turbulence and surface wind gusts to 75 knots. A few cumulonimbi with maximum tops to 450. Mean storm motion vector 26040. ...Smith
SPC Severe Thunderstorm Watch 419
WW 419 SEVERE TSTM KS 152135Z – 160300Z 
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 419 NWS Storm Prediction Center Norman OK 435 PM CDT Sat Jun 15 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Central and Eastern Kansas * Effective this Saturday afternoon and evening from 435 PM until 1000 PM CDT. * Primary threats include... Scattered damaging winds and isolated significant gusts to 80 mph possible Isolated large hail events to 1.5 inches in diameter possible SUMMARY...Isolated to scattered thunderstorms will continue to develop this afternoon into the evening. The stronger thunderstorms will mainly be capable of severe gusts (60-80 mph). Isolated large hail may also accompany the more intense thunderstorm cores as this activity moves east into a more unstable airmass over eastern parts of Kansas towards the early evening. The severe thunderstorm watch area is approximately along and 55 statute miles east and west of a line from 45 miles northeast of Manhattan KS to 40 miles south of Wichita KS. 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 417...WW 418... AVIATION...A few severe thunderstorms with hail surface and aloft to 1.5 inches. Extreme turbulence and surface wind gusts to 70 knots. A few cumulonimbi with maximum tops to 450. Mean storm motion vector 21030. ...Smith