Storm Prediction Center

WW 0409 Status Updates
STATUS REPORT ON WW 409 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..KERR..06/28/26 ATTN...WFO...BIS... STATUS REPORT FOR WS 409 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NDC009-015-021-029-031-043-045-047-049-051-055-069-075-079-083- 093-101-103-280540- ND . NORTH DAKOTA COUNTIES INCLUDED ARE BOTTINEAU BURLEIGH DICKEY EMMONS FOSTER KIDDER LAMOURE LOGAN MCHENRY MCINTOSH MCLEAN PIERCE RENVILLE ROLETTE SHERIDAN STUTSMAN WARD WELLS THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more

WW 0409 Status Updates
STATUS REPORT ON WW 409 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. ..KERR..06/28/26 ATTN...WFO...BIS... STATUS REPORT FOR WS 409 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NDC009-015-021-029-031-043-045-047-049-051-055-069-075-079-083- 093-101-103-280540- ND . NORTH DAKOTA COUNTIES INCLUDED ARE BOTTINEAU BURLEIGH DICKEY EMMONS FOSTER KIDDER LAMOURE LOGAN MCHENRY MCINTOSH MCLEAN PIERCE RENVILLE ROLETTE SHERIDAN STUTSMAN WARD WELLS THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more

WW 409 SEVERE TSTM ND 280235Z - 280900Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 409 NWS Storm Prediction Center Norman OK 1035 PM EDT Sat Jun 27 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Central North Dakota * Effective this Saturday night and Sunday morning from 1035 PM until 500 AM EDT. * 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...Organized line of strong to severe thunderstorms moving across western North Dakota is forecast to continue eastward/northeastward tonight. Strong to severe gusts are the primary hazard with this line as it moves through central North Dakota. Some isolated large hail is also possible. Ample low-level shear suggests a low-probability risk for a brief line-embedded tornado also exists. The severe thunderstorm watch area is approximately along and 60 statute miles east and west of a line from 50 miles north northeast of Minot ND to 70 miles south southwest of Jamestown ND. 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 406...WW 407...WW 408... 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 26025. ...Mosier Read more

WW 0410 Status Updates
STATUS FOR WATCH 0410 HAS NOT BEEN ISSUED YET Read more

WW 0410 Status Updates
STATUS FOR WATCH 0410 HAS NOT BEEN ISSUED YET Read more

MD 1361 CONCERNING TORNADO WATCH 406... FOR PARTS OF CENTRAL SOUTH DAKOTA
Mesoscale Discussion 1361 NWS Storm Prediction Center Norman OK 0846 PM CDT Sat Jun 27 2026 Areas affected...parts of central South Dakota Concerning...Tornado Watch 406... Valid 280146Z - 280345Z The severe weather threat for Tornado Watch 406 continues. SUMMARY...A cluster of storms may continue to pose a risk for strong to severe wind gusts across much of central South Dakota through 10-11 PM CDT. DISCUSSION...Forcing for ascent associated with weak short wave troughing progressing through 30-40 kt difluent, southwesterly flow around 500 mb may maintain northeastward progression of an ongoing cluster of storms across much of central South Dakota, despite increasing inhibition for moist boundary-layer parcels. The corridor of stronger potential instability (from which updraft inflow is emanating) is narrow, but Rapid Refresh suggests it may be developing slowly eastward. It still probably will be overtaken by the convective outflow somewhere across central into eastern South Dakota, leading to at least gradual weakening of convection. However, until then, convection will probably continue to pose a risk for strong to severe wind gusts. ..Kerr.. 06/28/2026 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...FSD...ABR...LBF...UNR... LAT...LON 44670145 45810009 45479870 43489945 42920061 43110169 43990117 44670145 MOST PROBABLE PEAK TORNADO INTENSITY...85-110 MPH MOST PROBABLE PEAK WIND GUST...65-80 MPH MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN Read more

WW 0407 Status Updates
STATUS REPORT ON WW 407 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 S MHN TO 20 SSE BFF. ..KERR..06/28/26 ATTN...WFO...BOU...LBF...CYS... STATUS REPORT FOR WS 407 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NEC013-045-069-075-091-123-165-171-280340- NE . NEBRASKA COUNTIES INCLUDED ARE BOX BUTTE DAWES GARDEN GRANT HOOKER MORRILL SIOUX THOMAS THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more

WW 0407 Status Updates
STATUS REPORT ON WW 407 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 S MHN TO 20 SSE BFF. ..KERR..06/28/26 ATTN...WFO...BOU...LBF...CYS... STATUS REPORT FOR WS 407 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NEC013-045-069-075-091-123-165-171-280340- NE . NEBRASKA COUNTIES INCLUDED ARE BOX BUTTE DAWES GARDEN GRANT HOOKER MORRILL SIOUX THOMAS THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more

WW 0407 Status Updates
STATUS REPORT ON WW 407 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 S MHN TO 20 SSE BFF. ..KERR..06/28/26 ATTN...WFO...BOU...LBF...CYS... STATUS REPORT FOR WS 407 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NEC013-045-069-075-091-123-165-171-280340- NE . NEBRASKA COUNTIES INCLUDED ARE BOX BUTTE DAWES GARDEN GRANT HOOKER MORRILL SIOUX THOMAS THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more

WW 407 SEVERE TSTM CO NE 272115Z - 280500Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 407 NWS Storm Prediction Center Norman OK 315 PM MDT Sat Jun 27 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Far Northeast Colorado Western Nebraska * Effective this Saturday afternoon and evening from 315 PM until 1100 PM MDT. * Primary threats include... Scattered damaging winds and isolated significant gusts to 80 mph possible Scattered large hail and isolated very large hail events to 2.5 inches in diameter possible A tornado or two possible SUMMARY...At least widely scattered severe thunderstorms are expected to develop, potentially including a few higher-based supercells. Large hail and severe-caliber winds are expected to be the primary hazard. The severe thunderstorm watch area is approximately along and 60 statute miles east and west of a line from 65 miles north of Scottsbluff NE to 45 miles south southwest of North Platte 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 403...WW 404...WW 405...WW 406... 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 550. Mean storm motion vector 25025. ...Guyer Read more

WW 0408 Status Updates
STATUS REPORT ON WW 408 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 NW SDY TO 30 SSW OLF TO 60 N OLF. ..KERR..06/28/26 ATTN...WFO...GGW... STATUS REPORT FOR WS 408 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MTC019-055-083-085-091-105-280340- MT . MONTANA COUNTIES INCLUDED ARE DANIELS MCCONE RICHLAND ROOSEVELT SHERIDAN VALLEY THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more

WW 0408 Status Updates
STATUS REPORT ON WW 408 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 NW SDY TO 30 SSW OLF TO 60 N OLF. ..KERR..06/28/26 ATTN...WFO...GGW... STATUS REPORT FOR WS 408 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MTC019-055-083-085-091-105-280340- MT . MONTANA COUNTIES INCLUDED ARE DANIELS MCCONE RICHLAND ROOSEVELT SHERIDAN VALLEY THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more

WW 0408 Status Updates
STATUS REPORT ON WW 408 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 10 NW SDY TO 30 SSW OLF TO 60 N OLF. ..KERR..06/28/26 ATTN...WFO...GGW... STATUS REPORT FOR WS 408 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MTC019-055-083-085-091-105-280340- MT . MONTANA COUNTIES INCLUDED ARE DANIELS MCCONE RICHLAND ROOSEVELT SHERIDAN VALLEY THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more

WW 408 SEVERE TSTM MT 272220Z - 280500Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 408 NWS Storm Prediction Center Norman OK 420 PM MDT Sat Jun 27 2026 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Northeast Montana * Effective this Saturday afternoon and evening from 420 PM until 1100 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 are expected to develop across northeast Montana this afternoon and evening. A more cellular mode is possible early in the convective cycle, but strong southerly shear suggests storms will likely become linear quickly. Large to very large hail is the primary hazards as storms are more cellular while strong wind gusts (up to 80+ mph) are the primary hazard as storms become linear. A low-probability tornado hazard will exist this afternoon and evening as well. The severe thunderstorm watch area is approximately along and 60 statute miles east and west of a line from 60 miles north of Wolf Point MT to 55 miles west southwest of Glendive MT. 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 403...WW 404...WW 405...WW 406...WW 407... 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 23030. ...Mosier Read more

MD 1360 CONCERNING TORNADO WATCH 406... FOR PARTS OF WESTERN INTO CENTRAL NORTH DAKOTA AND ADJACENT PORTIONS OF SOUTH DAKOTA
Mesoscale Discussion 1360 NWS Storm Prediction Center Norman OK 0825 PM CDT Sat Jun 27 2026 Areas affected...parts of western into central North Dakota and adjacent portions of South Dakota Concerning...Tornado Watch 406... Valid 280125Z - 280330Z The severe weather threat for Tornado Watch 406 continues. SUMMARY...The risk for strong to severe wind gusts and a few tornadoes appears to be increasing with an organizing cluster of storms, particularly across northwestern into portions of central North Dakota through 9-11 PM CDT. DISCUSSION...Considerable upscale convective growth has occurred the past few hours, focused within the lee surface trough near and east of the Montana/Dakotas state border vicinity. A notable 2-hour surface pressure fall/rise couplet has become evident in 01Z surface observations, along and just ahead of strengthening outflow. Activity is embedded within deep-layer southerly mean flow on the order of 30 kt, with strengthening easterly to northeasterly near-surface inflow of moist air characterized by moderate CAPE likely to support further intensification of convection through 02-03Z. It appears that a meso-beta scale lower/mid-tropospheric cyclonic vortex could form near/south of the Williston vicinity, accompanied by strengthening southwesterly rear-inflow, and increasing potential for severe wind gusts. A few evolving meso-gamma scale vortices may be accompanied by locally more damaging gusts and/or tornadoes. ..Kerr.. 06/28/2026 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...ABR...BIS...UNR...GGW... LAT...LON 49250451 48870148 47030057 45570087 45230197 47060274 47500330 47580372 48480472 49250451 MOST PROBABLE PEAK TORNADO INTENSITY...85-110 MPH MOST PROBABLE PEAK WIND GUST...75-90 MPH MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN Read more

WW 0409 Status Updates
STATUS FOR WATCH 0409 HAS NOT BEEN ISSUED YET Read more

WW 0409 Status Updates
STATUS FOR WATCH 0409 HAS NOT BEEN ISSUED YET Read more

WW 0406 Status Updates
STATUS REPORT ON WW 406 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 NE BFF TO 30 ENE CDR TO 50 SSW PHP TO 15 NE PHP TO 50 SSE Y22 TO 25 SW Y22 TO 25 S DIK TO 15 E DIK TO 55 N DIK TO 20 SE ISN TO 20 W ISN TO 35 W ISN. ..KERR..06/28/26 ATTN...WFO...BIS...LBF...UNR...ABR... STATUS REPORT FOR WT 406 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NEC031-161-280340- NE . NEBRASKA COUNTIES INCLUDED ARE CHERRY SHERIDAN NDC001-013-023-025-037-041-053-057-059-061-065-085-089-105- 280340- ND . NORTH DAKOTA COUNTIES INCLUDED ARE ADAMS BURKE DIVIDE DUNN GRANT HETTINGER MCKENZIE MERCER MORTON MOUNTRAIL OLIVER SIOUX STARK WILLIAMS SDC007-021-031-041-065-071-075-085-095-105-107-117-119-121-129- 280340- Read more

WW 0406 Status Updates
STATUS REPORT ON WW 406 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 NE BFF TO 30 ENE CDR TO 50 SSW PHP TO 15 NE PHP TO 50 SSE Y22 TO 25 SW Y22 TO 25 S DIK TO 15 E DIK TO 55 N DIK TO 20 SE ISN TO 20 W ISN TO 35 W ISN. ..KERR..06/28/26 ATTN...WFO...BIS...LBF...UNR...ABR... STATUS REPORT FOR WT 406 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NEC031-161-280340- NE . NEBRASKA COUNTIES INCLUDED ARE CHERRY SHERIDAN NDC001-013-023-025-037-041-053-057-059-061-065-085-089-105- 280340- ND . NORTH DAKOTA COUNTIES INCLUDED ARE ADAMS BURKE DIVIDE DUNN GRANT HETTINGER MCKENZIE MERCER MORTON MOUNTRAIL OLIVER SIOUX STARK WILLIAMS SDC007-021-031-041-065-071-075-085-095-105-107-117-119-121-129- 280340- Read more

WW 0407 Status Updates
STATUS REPORT ON WW 407 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 ESE LBF TO 20 ESE SNY. ..KERR..06/28/26 ATTN...WFO...BOU...LBF...CYS... STATUS REPORT FOR WS 407 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NEC005-013-033-045-049-069-075-091-101-111-113-117-123-165-171- 280340- NE . NEBRASKA COUNTIES INCLUDED ARE ARTHUR BOX BUTTE CHEYENNE DAWES DEUEL GARDEN GRANT HOOKER KEITH LINCOLN LOGAN MCPHERSON MORRILL SIOUX THOMAS THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES. Read more