Winds around 60mph with thunderstorm complex moving from the south to the north.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS FGF wrote it up.
Winds around 60mph with thunderstorm complex moving from the south to the north.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Grand Forks, ND wrote its last area forecast discussion before the first event at Sep 14, 1:44 PM CST, 2 hours 6 minutes earlier. Its key messages:
Area Forecast Discussion National Weather Service Grand Forks ND 244 PM CDT Sun Sep 14 2025 .KEY MESSAGES... - There is a 1 of 5 risk of severe thunderstorms today across much of eastern North Dakota and parts of west central and northwest Minnesota. Additionally, there is a 2 of 5 risk for severe thunderstorms across central North Dakota into parts of the Devils Lake Basin. Hazards could include isolated tornadoes, hail up to 1.25 inch in diameter, and wind gusts to 70 mph. && .DISCUSSION... Issued at 208 PM CDT Sun Sep 14 2025 ...Synopsis... As the upper low transitions northeastward through the next two days, moisture and flow with it will be taken away from our area. Continued southwest flow on the backside of the low will allow for additional shower and storm potential Monday and Tuesday, but with much less potential for severe storms compared to today. Gusty winds are expected to develop on the backside of the low, with gusts potentially approaching as high as 45 mph tomorrow afternoon. As we progress into midweek, flow drastically worsens, but with fairly progressive flow we should see near daily chances for showers and thunderstorms. Because flow is weak aloft, the probability for widespread severe convection is low. ...SEVERE STORMS TODAY... An ongoing MCV over the Dakota state line has caused multiple tornado warnings to our south and west. This complex should continue to spin northward with the center away from our region. Having said that, a front extends from the MCV eastward and southward across the Dakotas. This region will be the area where storms should fire off that will impact us. Satellite this afternoon indicates ongoing deep convection initiation beginning to occur further east away from the low, currently residing along the Iowa/South Dakota state line and advancing northward. Through the afternoon, the MCV/low will bring its front northward with it, allowing storms to propagate to our area. Ample low level instability exists thanks to ongoing advection from southeasterly winds and diurnal heating. The strongest midlevel moisture is closer to the upper low west of our CWA. For this reason, there is two sections of severe expected with a different degree of hazards. The first region is the one to the west closer to the MCV. This extends eastward into the Devils Lake Basin and Sheyenne River Valley. Here, ample veering exists to generate enough vorticity for supercell structures capable of damaging tornadoes. Because of the saturation aloft, mid-level instability is a lot more limited, so hail production will be much less. Heavy rain also may contribute to flash flooding, although storm morphology thus far paints the greatest chances west of our CWA. With the higher moisture content, water loading may contribute to wind gusts to 70 mph, although this is only a medium level probability. The second region is everywhere else covered by the marginal risk. Here, much drier air exists aloft, but with stronger flow from the south. As showers and storms push northward in tandem with this environment, a very high DCAPE with very strong low level flow will contribute to an environment capable of damaging wind gusts, with a low probability for significant wind gusts exceeding 75 mph. The tornado threat is much less thanks to limited moisture content but still exists with modest veering. The main question right now is whether or not we even see a degree of storms that last long enough to become severe. Dry air entrainment within this region looks to be an issue, but if it does overcome dry air entrainment, expect the aforementioned hazards to develop. Severe thunderstorm potential will diminish substantially after sunset, exiting the area midnight at the latest. && .AVIATION /18Z TAFS THROUGH 18Z MONDAY/... Issued at 1227 PM CDT Sun Sep 14 2025 IFR to MVFR ceilings will continue to lift through the early afternoon eventually becoming VFR. A line of showers and thunderstorms is expected to develop late this afternoon and progress northward. Gusty and erratic winds are likely with these storms, generally gusting to between 40-55 knots. Hail is also a possibility with these storms. Storms look to exit the area after 06z for the most part, with lingering showers potentially continuing. Winds will shift to more southerly, increasing after 12z tomorrow to sustained between 15-20 knots. && .FGF WATCHES/WARNINGS/ADVISORIES... ND...None. MN...None. && DISCUSSION...Perroux AVIATION...Perroux
Hazardous Weather Outlook National Weather Service Grand Forks ND 427 PM CDT Sun Sep 14 2025 NDZ006-007-014-015-024-026>030-038-039-049-052>054-152130- Towner-Cavalier-Benson-Ramsey-Eddy-Nelson-Grand Forks-Griggs- Steele-Traill-Barnes-Cass-Ransom-Sargent-Richland-Western Walsh- 427 PM CDT Sun Sep 14 2025 This hazardous weather outlook is for portions of eastern North Dakota. .DAY ONE...Tonight There is a 2 of 5 risk for severe thunderstorms across central North Dakota into parts of the Devils Lake Basin. Hazards could include isolated tornadoes, hail up to 1.25 inches in diameter, and wind gusts to 70 mph. General storm motion...Moving toward the north at 35 mph. .DAYS TWO THROUGH SEVEN...Monday through Saturday A few strong thunderstorms are possible Monday and Tuesday. .SPOTTER INFORMATION STATEMENT... Spotter activation may be required today. MNZ001>003-007-008-013>015-022-027>031-040-NDZ008-016-152130- West Polk-Norman-Clay-West Marshall-East Marshall-Pennington- Red Lake-East Polk-Mahnomen-West Becker-East Becker-Wilkin- West Otter Tail-East Otter Tail-Grant-Pembina-Eastern Walsh- 427 PM CDT Sun Sep 14 2025 This hazardous weather outlook is for portions of eastern North Dakota, west central and northwest Minnesota. .DAY ONE...Tonight There is a 1 of 5 risk of severe thunderstorms today across much of eastern North Dakota and parts of west central and northwest Minnesota. Hazards could include isolated tornadoes, hail up to 1 inch in diameter, and wind gusts to 70 mph. General storm motion...Moving toward the north at 35 mph .DAYS TWO THROUGH SEVEN...Monday through Saturday The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation may be required today. MNZ004>006-009-016-017-023-024-032-152130- Kittson-Roseau-Lake Of The Woods-North Beltrami-North Clearwater- South Beltrami-South Clearwater-Hubbard-Wadena- 427 PM CDT Sun Sep 14 2025 This hazardous weather outlook is for portions of west central and northwest Minnesota. .DAY ONE...Tonight Scattered strong thunderstorms are possible across the region this afternoon, evening, and early overnight. Hazards could include small hail and wind gusts to 55 mph. .DAYS TWO THROUGH SEVEN...Monday through Saturday The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated today.
The Fargo/Grand Forks radar (KMVX), 145 km away, was scanning. The volume nearest the first event began at 21:49 UTC.
3 thunderstorm wind. Local standard time, as filed.
Social Media post with video of wind gusts, estimated by observer of 60 mph near I-29 and Hwy 13.
Tree reported on house, time estimated from radar.
Reported near Cavalier.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in North Dakota in 2025Every state in 2025This day in weather historyWarnings in North Dakota, September 2025
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1295630, 1295629, 1295632.