Severe Storms

MD 1805 CONCERNING SEVERE THUNDERSTORM WATCH 547... FOR EASTERN ND AND NORTHERN MN
Mesoscale Discussion 1805 NWS Storm Prediction Center Norman OK 0109 AM CDT Sun Jul 27 2025 Areas affected...eastern ND and northern MN Concerning...Severe Thunderstorm Watch 547... Valid 270609Z - 270745Z The severe weather threat for Severe Thunderstorm Watch 547 continues. SUMMARY...Damaging wind threat from strong to sporadic severe gusts should persist through dawn across eastern North Dakota and northern Minnesota. Southward expansion of WW 547 and/or an additional Severe Thunderstorm Watch is possible. DISCUSSION...A trio of measured severe gusts from 65-70 mph have occurred with a northwest/southeast-oriented cluster that has progressed into eastern ND. With flanking convective development to its southeast, an orientation pivot may continue and potentially yield more of a north/south alignment in the next few hours. This emerging MCS should progress through the instability axis that extends east across northern MN. Enhanced mid-level westerlies within and in the wake of this cluster, per the BIS VWP time-series, suggests it may remain organized for the next several hours. The 21Z GSL-MPAS and 00Z NSSL-MPAS runs appear to be reasonably handling the ongoing cluster and are more aggressive with longevity of the damaging wind threat relative to recent HRRR/RRFS runs. ..Grams/Hart.. 07/27/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...DLH...FGF...BIS... LAT...LON 47619912 47719949 48089922 48619756 48799685 48439394 47859308 47249298 47169305 46869338 46699467 46669574 46719675 47619912 MOST PROBABLE PEAK WIND GUST...65-80 MPH MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN Read more

WW 0547 Status Updates
STATUS REPORT ON WW 547 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 SE SDY TO 20 W ISN. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1806. ..GRAMS..07/27/25 ATTN...WFO...FGF...BIS... STATUS REPORT FOR WS 547 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MNC007-029-069-077-087-089-107-113-119-125-135-270840- MN . MINNESOTA COUNTIES INCLUDED ARE BELTRAMI CLEARWATER KITTSON LAKE OF THE WOODS MAHNOMEN MARSHALL NORMAN PENNINGTON POLK RED LAKE ROSEAU NDC003-005-007-009-013-017-019-023-025-027-031-035-039-049-053- 055-057-061-063-065-067-069-071-075-079-083-089-091-095-097-099- 101-103-105-270840- ND . NORTH DAKOTA COUNTIES INCLUDED ARE BARNES BENSON BILLINGS BOTTINEAU BURKE CASS CAVALIER DIVIDE DUNN EDDY FOSTER GRAND FORKS GRIGGS MCHENRY MCKENZIE Read more

WW 0546 Status Updates
STATUS REPORT ON WW 546 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 WSW BIS TO 25 SSW Y22 TO 15 NNE 2WX TO 30 SW DIK. WW 546 IS SCHEDULED TO EXPIRE AT 270800Z BUT MAY BE EXTENDED IN SOUTHWEST ND. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1806. ..GRAMS..07/27/25 ATTN...WFO...BYZ...BIS...UNR...ABR... STATUS REPORT FOR WS 546 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NDC001-011-037-041-059-087-270800- ND . NORTH DAKOTA COUNTIES INCLUDED ARE ADAMS BOWMAN GRANT HETTINGER MORTON SLOPE SDC063-105-115-270800- SD . SOUTH DAKOTA COUNTIES INCLUDED ARE HARDING PERKINS SPINK 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 Read more

WW 0546 Status Updates
STATUS REPORT ON WW 546 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 WSW BIS TO 25 SSW Y22 TO 15 NNE 2WX TO 30 SW DIK. WW 546 IS SCHEDULED TO EXPIRE AT 270800Z BUT MAY BE EXTENDED IN SOUTHWEST ND. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1806. ..GRAMS..07/27/25 ATTN...WFO...BYZ...BIS...UNR...ABR... STATUS REPORT FOR WS 546 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NDC001-011-037-041-059-087-270800- ND . NORTH DAKOTA COUNTIES INCLUDED ARE ADAMS BOWMAN GRANT HETTINGER MORTON SLOPE SDC063-105-115-270800- SD . SOUTH DAKOTA COUNTIES INCLUDED ARE HARDING PERKINS SPINK 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 Read more

WW 0546 Status Updates
STATUS REPORT ON WW 546 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 WSW BIS TO 25 SSW Y22 TO 15 NNE 2WX TO 30 SW DIK. WW 546 IS SCHEDULED TO EXPIRE AT 270800Z BUT MAY BE EXTENDED IN SOUTHWEST ND. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1806. ..GRAMS..07/27/25 ATTN...WFO...BYZ...BIS...UNR...ABR... STATUS REPORT FOR WS 546 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NDC001-011-037-041-059-087-270800- ND . NORTH DAKOTA COUNTIES INCLUDED ARE ADAMS BOWMAN GRANT HETTINGER MORTON SLOPE SDC063-105-115-270800- SD . SOUTH DAKOTA COUNTIES INCLUDED ARE HARDING PERKINS SPINK 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 Read more

WW 0546 Status Updates
STATUS REPORT ON WW 546 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 WSW BIS TO 25 SSW Y22 TO 15 NNE 2WX TO 30 SW DIK. WW 546 IS SCHEDULED TO EXPIRE AT 270800Z BUT MAY BE EXTENDED IN SOUTHWEST ND. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1806. ..GRAMS..07/27/25 ATTN...WFO...BYZ...BIS...UNR...ABR... STATUS REPORT FOR WS 546 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NDC001-011-037-041-059-087-270800- ND . NORTH DAKOTA COUNTIES INCLUDED ARE ADAMS BOWMAN GRANT HETTINGER MORTON SLOPE SDC063-105-115-270800- SD . SOUTH DAKOTA COUNTIES INCLUDED ARE HARDING PERKINS SPINK 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 Read more

WW 0546 Status Updates
STATUS REPORT ON WW 546 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 WSW BIS TO 25 SSW Y22 TO 15 NNE 2WX TO 30 SW DIK. WW 546 IS SCHEDULED TO EXPIRE AT 270800Z BUT MAY BE EXTENDED IN SOUTHWEST ND. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1806. ..GRAMS..07/27/25 ATTN...WFO...BYZ...BIS...UNR...ABR... STATUS REPORT FOR WS 546 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NDC001-011-037-041-059-087-270800- ND . NORTH DAKOTA COUNTIES INCLUDED ARE ADAMS BOWMAN GRANT HETTINGER MORTON SLOPE SDC063-105-115-270800- SD . SOUTH DAKOTA COUNTIES INCLUDED ARE HARDING PERKINS SPINK 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 Read more

WW 546 SEVERE TSTM MT ND SD WY 270050Z - 270800Z
URGENT - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Watch Number 546 NWS Storm Prediction Center Norman OK 650 PM MDT Sat Jul 26 2025 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Far Southeast Montana Southern North Dakota Northern and Central South Dakota Far Northeast Wyoming * Effective this Saturday night and Sunday morning from 650 PM until 200 AM MDT. * 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...A very moist and unstable airmass exists across the Dakotas this evening. Thunderstorm intensity and coverage is expected to increase across this region this evening through tonight as large-scale forcing for ascent increases. Isolated storms across far southeast MT and far northeast WY will likely grow upscale, with the resulting convective line moving eastward across southern ND and northern SD. Strong gusts, some over 70 mph, are possible within this line. Farther east, supercells will likely continue across central SD, with possible new development north and southeast of these storms as well. Large to isolated very large hail and strong gusts are possible with these storms. The severe thunderstorm watch area is approximately along and 75 statute miles north and south of a line from 85 miles west southwest of Buffalo SD to 40 miles north northeast of Aberdeen SD. 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 544...WW 545... 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 24025. ...Mosier Read more

WW 0547 Status Updates
STATUS REPORT ON WW 547 THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA. FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1805. ..GRAMS..07/27/25 ATTN...WFO...FGF...BIS... STATUS REPORT FOR WS 547 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS MNC007-029-069-077-087-089-107-113-119-125-135-270740- MN . MINNESOTA COUNTIES INCLUDED ARE BELTRAMI CLEARWATER KITTSON LAKE OF THE WOODS MAHNOMEN MARSHALL NORMAN PENNINGTON POLK RED LAKE ROSEAU NDC003-005-007-009-013-017-019-023-025-027-031-033-035-039-049- 053-055-057-061-063-065-067-069-071-075-079-083-089-091-095-097- 099-101-103-105-270740- ND . NORTH DAKOTA COUNTIES INCLUDED ARE BARNES BENSON BILLINGS BOTTINEAU BURKE CASS CAVALIER DIVIDE DUNN EDDY FOSTER GOLDEN VALLEY GRAND FORKS GRIGGS MCHENRY MCKENZIE MCLEAN MERCER Read more

WW 0546 Status Updates
STATUS REPORT ON WW 546 SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 WSW BIS TO 35 SSW Y22 TO 20 S 2WX TO 20 E BHK. ..GRAMS..07/27/25 ATTN...WFO...BYZ...BIS...UNR...ABR... STATUS REPORT FOR WS 546 SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS NDC001-011-037-041-059-087-270740- ND . NORTH DAKOTA COUNTIES INCLUDED ARE ADAMS BOWMAN GRANT HETTINGER MORTON SLOPE SDC063-105-270740- SD . SOUTH DAKOTA COUNTIES INCLUDED ARE HARDING PERKINS 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

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0132 AM CDT Sun Jul 27 2025 Valid 281200Z - 291200Z ...Synopsis... A similar weather pattern is in store for the U.S. tomorrow (Monday), with a mid-level trough expected to meander along the West Coast as upper ridging prevails over the remainder of the CONUS. Locally dry and breezy conditions are expected across portions of the Four Corners into the central Rockies, though the lack of a stronger surface wind field precludes Elevated highlights at this time. Mid-level moisture ahead of the upper trough will support a mix of wet and dry thunderstorms Sunday afternoon and evening over far northern parts of the Great Basin into the Pacific Northwest. Given dry fuels in place, isolated dry thunderstorm highlights have been introduced. ..Squitieri.. 07/27/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0132 AM CDT Sun Jul 27 2025 Valid 281200Z - 291200Z ...Synopsis... A similar weather pattern is in store for the U.S. tomorrow (Monday), with a mid-level trough expected to meander along the West Coast as upper ridging prevails over the remainder of the CONUS. Locally dry and breezy conditions are expected across portions of the Four Corners into the central Rockies, though the lack of a stronger surface wind field precludes Elevated highlights at this time. Mid-level moisture ahead of the upper trough will support a mix of wet and dry thunderstorms Sunday afternoon and evening over far northern parts of the Great Basin into the Pacific Northwest. Given dry fuels in place, isolated dry thunderstorm highlights have been introduced. ..Squitieri.. 07/27/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0132 AM CDT Sun Jul 27 2025 Valid 281200Z - 291200Z ...Synopsis... A similar weather pattern is in store for the U.S. tomorrow (Monday), with a mid-level trough expected to meander along the West Coast as upper ridging prevails over the remainder of the CONUS. Locally dry and breezy conditions are expected across portions of the Four Corners into the central Rockies, though the lack of a stronger surface wind field precludes Elevated highlights at this time. Mid-level moisture ahead of the upper trough will support a mix of wet and dry thunderstorms Sunday afternoon and evening over far northern parts of the Great Basin into the Pacific Northwest. Given dry fuels in place, isolated dry thunderstorm highlights have been introduced. ..Squitieri.. 07/27/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0132 AM CDT Sun Jul 27 2025 Valid 281200Z - 291200Z ...Synopsis... A similar weather pattern is in store for the U.S. tomorrow (Monday), with a mid-level trough expected to meander along the West Coast as upper ridging prevails over the remainder of the CONUS. Locally dry and breezy conditions are expected across portions of the Four Corners into the central Rockies, though the lack of a stronger surface wind field precludes Elevated highlights at this time. Mid-level moisture ahead of the upper trough will support a mix of wet and dry thunderstorms Sunday afternoon and evening over far northern parts of the Great Basin into the Pacific Northwest. Given dry fuels in place, isolated dry thunderstorm highlights have been introduced. ..Squitieri.. 07/27/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0132 AM CDT Sun Jul 27 2025 Valid 281200Z - 291200Z ...Synopsis... A similar weather pattern is in store for the U.S. tomorrow (Monday), with a mid-level trough expected to meander along the West Coast as upper ridging prevails over the remainder of the CONUS. Locally dry and breezy conditions are expected across portions of the Four Corners into the central Rockies, though the lack of a stronger surface wind field precludes Elevated highlights at this time. Mid-level moisture ahead of the upper trough will support a mix of wet and dry thunderstorms Sunday afternoon and evening over far northern parts of the Great Basin into the Pacific Northwest. Given dry fuels in place, isolated dry thunderstorm highlights have been introduced. ..Squitieri.. 07/27/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0132 AM CDT Sun Jul 27 2025 Valid 281200Z - 291200Z ...Synopsis... A similar weather pattern is in store for the U.S. tomorrow (Monday), with a mid-level trough expected to meander along the West Coast as upper ridging prevails over the remainder of the CONUS. Locally dry and breezy conditions are expected across portions of the Four Corners into the central Rockies, though the lack of a stronger surface wind field precludes Elevated highlights at this time. Mid-level moisture ahead of the upper trough will support a mix of wet and dry thunderstorms Sunday afternoon and evening over far northern parts of the Great Basin into the Pacific Northwest. Given dry fuels in place, isolated dry thunderstorm highlights have been introduced. ..Squitieri.. 07/27/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0132 AM CDT Sun Jul 27 2025 Valid 281200Z - 291200Z ...Synopsis... A similar weather pattern is in store for the U.S. tomorrow (Monday), with a mid-level trough expected to meander along the West Coast as upper ridging prevails over the remainder of the CONUS. Locally dry and breezy conditions are expected across portions of the Four Corners into the central Rockies, though the lack of a stronger surface wind field precludes Elevated highlights at this time. Mid-level moisture ahead of the upper trough will support a mix of wet and dry thunderstorms Sunday afternoon and evening over far northern parts of the Great Basin into the Pacific Northwest. Given dry fuels in place, isolated dry thunderstorm highlights have been introduced. ..Squitieri.. 07/27/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0132 AM CDT Sun Jul 27 2025 Valid 281200Z - 291200Z ...Synopsis... A similar weather pattern is in store for the U.S. tomorrow (Monday), with a mid-level trough expected to meander along the West Coast as upper ridging prevails over the remainder of the CONUS. Locally dry and breezy conditions are expected across portions of the Four Corners into the central Rockies, though the lack of a stronger surface wind field precludes Elevated highlights at this time. Mid-level moisture ahead of the upper trough will support a mix of wet and dry thunderstorms Sunday afternoon and evening over far northern parts of the Great Basin into the Pacific Northwest. Given dry fuels in place, isolated dry thunderstorm highlights have been introduced. ..Squitieri.. 07/27/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0132 AM CDT Sun Jul 27 2025 Valid 281200Z - 291200Z ...Synopsis... A similar weather pattern is in store for the U.S. tomorrow (Monday), with a mid-level trough expected to meander along the West Coast as upper ridging prevails over the remainder of the CONUS. Locally dry and breezy conditions are expected across portions of the Four Corners into the central Rockies, though the lack of a stronger surface wind field precludes Elevated highlights at this time. Mid-level moisture ahead of the upper trough will support a mix of wet and dry thunderstorms Sunday afternoon and evening over far northern parts of the Great Basin into the Pacific Northwest. Given dry fuels in place, isolated dry thunderstorm highlights have been introduced. ..Squitieri.. 07/27/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more

SPC Day 2 Fire Weather Outlook
Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0132 AM CDT Sun Jul 27 2025 Valid 281200Z - 291200Z ...Synopsis... A similar weather pattern is in store for the U.S. tomorrow (Monday), with a mid-level trough expected to meander along the West Coast as upper ridging prevails over the remainder of the CONUS. Locally dry and breezy conditions are expected across portions of the Four Corners into the central Rockies, though the lack of a stronger surface wind field precludes Elevated highlights at this time. Mid-level moisture ahead of the upper trough will support a mix of wet and dry thunderstorms Sunday afternoon and evening over far northern parts of the Great Basin into the Pacific Northwest. Given dry fuels in place, isolated dry thunderstorm highlights have been introduced. ..Squitieri.. 07/27/2025 ...Please see www.spc.noaa.gov/fire for graphic product... Read more