Alert archive / Minnesota / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 167, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Aug 14, 2025, 10:27 PM CDT for Pennington County, Polk County, Red Lake County, Minnesota. It was in force for 63 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
- Aug 14, 2025, 10:27 PM CDT (03:27 UTC)
- Expired
- Aug 14, 2025, 11:30 PM CDT
- In force
- 63 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Hail
- 1.5 in
- Wind
- 60.0 mph
Counties Pennington County, MN, Polk County, MN, Red Lake County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 95 km from the middle of the area, began a volume at 03:28 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 nearest sounding before it
International Fa, MN (KINL), launched 00:00Z, 3.5 hours before the alert went out and 226 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
- 487 J/kg
- Mixed-layer CIN
- -110 J/kg
- Mixed-layer LCL
- 949 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 155 m²/s²
- 0-3 km storm-relative helicity
- 196 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.1
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 Aug 14, 9:49 PM CDT, 38 minutes earlier.
Area forecast discussion, Aug 14, 9:49 PM CDT, 38 minutes before
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</html>Hazardous weather outlook, Aug 14, 9:58 AM CDT, 12 hours 29 minutes before
Hazardous Weather Outlook National Weather Service Grand Forks ND 958 AM CDT Thu Aug 14 2025 MNZ001-002-004>009-013>017-022-023-NDZ006>008-014>016-024-026>030- 038-039-054-151500- West Polk-Norman-Kittson-Roseau-Lake Of The Woods-West Marshall- East Marshall-North Beltrami-Pennington-Red Lake-East Polk- North Clearwater-South Beltrami-Mahnomen-South Clearwater-Towner- Cavalier-Pembina-Benson-Ramsey-Eastern Walsh-Eddy-Nelson- Grand Forks-Griggs-Steele-Traill-Barnes-Cass-Western Walsh- 958 AM CDT Thu Aug 14 2025 This hazardous weather outlook is for portions of eastern North Dakota and northwest Minnesota. .DAY ONE...Today and Tonight There is a level 2 out of 5 risk for severe thunderstorms late afternoon into evening. The main hazards will be hail up to the size of tennis balls, gusts to 70 mph, and possibly a couple tornadoes. There remains uncertainty on coverage and timing of storms. General storm motion...Moving toward the east at 20 mph. .DAYS TWO THROUGH SEVEN...Friday through Wednesday The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation may be required today. MNZ003-024-027>032-040-NDZ049-052-053-151500- Clay-Hubbard-West Becker-East Becker-Wilkin-West Otter Tail- East Otter Tail-Wadena-Grant-Ransom-Sargent-Richland- 958 AM CDT Thu Aug 14 2025 This hazardous weather outlook is for portions of eastern North Dakota, west central and northwest Minnesota. .DAY ONE...Today and Tonight There is a level 2 out of 5 risk for severe thunderstorms late afternoon into evening. The main hazards will be hail up to the size of tennis balls, gusts to 70 mph, and possibly a couple tornadoes. There remains uncertainty on coverage and timing of storms. General storm motion...Moving toward the east at 20 mph. .DAYS TWO THROUGH SEVEN...Friday through Wednesday There is a level 1 out of 5 risk for severe thunderstorms Friday afternoon within southeast North Dakota into west- central Minnesota. There is a low chance for strong thunderstorms Saturday. .SPOTTER INFORMATION STATEMENT... Spotter activation may be required today.
In the hours before
Local storm report, Aug 14, 10:25 PM CDT, 2 minutes before
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</html>The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 8:08 PM CDT | Severe Thunderstorm Warning | FGF | Marshall | 37 min |
| Aug 14, 8:58 PM CDT | Severe Thunderstorm Warning | FGF | Polk | 47 min |
| Aug 14, 9:39 PM CDT | Severe Thunderstorm Warning | FGF | Pennington, Polk | 66 min |
| Aug 14, 10:37 PM CDT | Areal Flood Advisory | FGF | Polk | 3 hr |
| Aug 14, 11:17 PM CDT | Severe Thunderstorm Warning | FGF | Clearwater, Pennington, Polk, Red Lake | 58 min |
| Aug 15, 7:39 AM CDT | Special Weather Statement | FGF | Barnes | 36 min |
| Aug 15, 8:17 AM CDT | Special Weather Statement | FGF | Cass | 28 min |
| Aug 15, 8:56 AM CDT | Special Weather Statement | FGF | Traill | 34 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 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.