Alert archive / North Dakota / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 129, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 27, 2025, 1:16 AM CDT for 8 counties in North Dakota. It was in force for 59 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 27, 2025, 1:16 AM CDT (06:16 UTC)
- Expired
- Jul 27, 2025, 2:15 AM CDT
- In force
- 59 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Tornado
- Possible
- Damage threat
- Considerable
- Hail
- 1.0 in
- Wind
- 70.0 mph
Counties Benson County, ND, Eddy County, ND, Grand Forks County, ND, Griggs County, ND, Nelson County, ND, Ramsey County, ND, Steele County, ND, Walsh County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 83 km from the middle of the area, began a volume at 06:17 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 26, 11:48 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 6.3 hours before the alert went out and 221 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 2343 J/kg
- Mixed-layer CIN
- -126 J/kg
- Mixed-layer LCL
- 2248 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 83 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.8
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, 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 this severe thunderstorm warning went out at Jul 27, 12:15 AM CDT, 1 hour 1 minute earlier.
Area forecast discussion, Jul 27, 12:15 AM CDT, 1 hour 1 minute before
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</html>Hazardous weather outlook, Jul 26, 2:56 PM CDT, 10 hours 20 minutes before
Hazardous Weather Outlook National Weather Service Grand Forks ND 256 PM CDT Sat Jul 26 2025 MNZ005-006-009-016-017-023-024-028-031-032-040-NDZ006-007-014-015- 272000- Roseau-Lake Of The Woods-North Beltrami-North Clearwater- South Beltrami-South Clearwater-Hubbard-East Becker- East Otter Tail-Wadena-Grant-Towner-Cavalier-Benson-Ramsey- 256 PM CDT Sat Jul 26 2025 This hazardous weather outlook is for portions of eastern North Dakota, west central and northwest Minnesota. .DAY ONE...This Afternoon and Tonight There is a level 1 out of 5 risk for severe thunderstorms after midnight tonight. The main hazards will be hail to the size of quarters, winds to 60 mph, and localized flash flooding. Heat index values will rise into the upper 90s to near 100 degrees this afternoon. A Heat Advisory is in effect. .DAYS TWO THROUGH SEVEN...Sunday through Friday There is a level 1 out of 5 risk for severe thunderstorms Sunday. The main hazards will be gusty winds to 70 mph, hail to the size of ping pong balls, isolated tornadoes, and localized flash flooding. Heat impacts are expected again Sunday afternoon, mainly across southeast North Dakota and west central Minnesota. .SPOTTER INFORMATION STATEMENT... Spotter activation may be required tonight. MNZ001>004-007-008-013>015-022-027-029-030-NDZ008-016-024-026>030- 038-039-049-052>054-272000- West Polk-Norman-Clay-Kittson-West Marshall-East Marshall- Pennington-Red Lake-East Polk-Mahnomen-West Becker-Wilkin- West Otter Tail-Pembina-Eastern Walsh-Eddy-Nelson-Grand Forks- Griggs-Steele-Traill-Barnes-Cass-Ransom-Sargent-Richland- Western Walsh- 256 PM CDT Sat Jul 26 2025 This hazardous weather outlook is for portions of eastern North Dakota, west central and northwest Minnesota. .DAY ONE...This Afternoon and Tonight There is a level 2 out of 5 risk for severe thunderstorms after 10 PM through the overnight hours. The main hazards will be wind to 75 mph, hail to size of ping pong balls, isolated tornadoes, and localized flash flooding. Heat index values around 100 degrees are expected this afternoon, with a chance for values as high as 105. A Heat Advisory is in effect. .DAYS TWO THROUGH SEVEN...Sunday through Friday There is a level 1 out of 5 risk for severe thunderstorms Sunday. The main hazards will be gusty winds to 70 mph, hail to the size of ping pong balls,isolated tornadoes and localized flash flooding. Heat impacts are expected again Sunday afternoon, mainly across southeast North Dakota and west central Minnesota. .SPOTTER INFORMATION STATEMENT... Spotter activation may be required tonight.
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 1:56 AM CDT | Severe Thunderstorm Warning | FGF | Polk | 64 min |
| Jul 27, 2:35 AM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Clearwater, Kittson, Marshall, Norman, Pennington and 3 more | 55 min |
| Jul 27, 3:25 AM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Clearwater, Pennington, Polk, Red Lake | 65 min |
| Jul 27, 4:24 AM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Clearwater | 66 min |
| Jul 27, 4:28 AM CDT | Special Weather Statement | FGF | Becker, Hubbard | 62 min |
| Jul 27, 4:05 PM CDT | Severe Thunderstorm Warning | FGF | Grant | 40 min |
| Jul 27, 12:25 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Griggs, Nelson, Ramsey | 65 min |
| Jul 27, 12:29 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Griggs, Steele | 61 min |
| Jul 27, 1:12 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Grand Forks, Griggs, Nelson, Steele and 1 more | 63 min |
| Jul 27, 1:24 AM CDT | Tornado Warning | FGF | Grand Forks, Griggs, Nelson, Steele | 36 min |
| Jul 27, 1:54 AM CDT | Tornado Warning | FGF | Grand Forks, Steele, Traill | 36 min |
| Jul 27, 5:56 AM CDT | Severe Thunderstorm Warning | FGF | Benson, Eddy, Ramsey, Towner | 64 min |
| Jul 27, 6:58 AM CDT | Special Weather Statement | FGF | Towner | 32 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 2025Every severe thunderstorm warning in 2025
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.