Alert archive / Minnesota / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 191, NWS Grand Forks, ND

October 4, 2025Lake of the Woods County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Oct 4, 2025, 9:58 PM CDT for Lake of the Woods County, Minnesota. It was in force for 25 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
Oct 4, 2025, 9:58 PM CDT (02:58 UTC)
Expired
Oct 4, 2025, 10:23 PM CDT
In force
25 min
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon
Hail
1.25 in
Wind
50.0 mph

County Lake of the Woods County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 227 km from the middle of the area, began a volume at 02:59 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, 3.0 hours before the alert went out and 120 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.

Skew-T log-pSkew-T log-p diagram, International Fa, MN at 00:00Z on 2025-10-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1579 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, International Fa, MN at 00:00Z on 2025-10-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 91 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1579 J/kg
Mixed-layer CIN
-120 J/kg
Mixed-layer LCL
1494 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
91 m²/s²
0-3 km storm-relative helicity
136 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.0

Open this sounding in Storm Lab

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 Oct 4, 9:47 PM CDT, 11 minutes earlier.

Area forecast discussion, Oct 4, 9:47 PM CDT, 11 minutes before
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Hazardous weather outlook, Oct 4, 4:03 PM CDT, 5 hours 55 minutes before
Hazardous Weather Outlook
National Weather Service Grand Forks ND
403 PM CDT Sat Oct 4 2025

MNZ001-002-004>008-013>015-NDZ007-008-014>016-024-026>030-038-039-
049-052-054-052115-
West Polk-Norman-Kittson-Roseau-Lake Of The Woods-West Marshall-
East Marshall-Pennington-Red Lake-East Polk-Cavalier-Pembina-
Benson-Ramsey-Eastern Walsh-Eddy-Nelson-Grand Forks-Griggs-Steele-
Traill-Barnes-Cass-Ransom-Sargent-Western Walsh-
403 PM CDT Sat Oct 4 2025

This hazardous weather outlook is for portions of eastern North
Dakota and northwest Minnesota.

.DAY ONE...This Evening and Tonight

There is a level 1 out of 5 risk for severe thunderstorms this
evening and early overnight. Hail to quarter sized is the main
threat.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

There is a chance for frost during the morning hours Monday
through Wednesday over parts of the region.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be required today.

NDZ006-052115-
Towner-
403 PM CDT Sat Oct 4 2025

This hazardous weather outlook is for portions of eastern North
Dakota.

.DAY ONE...This Evening and Tonight

Scattered thunderstorms expected tonight. The main hazard will be
lightning.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

There is a chance for frost during the morning hours Monday
through Wednesday over parts of the region.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be required today.

MNZ003-009-016-017-022>024-027>032-040-NDZ053-052115-
Clay-North Beltrami-North Clearwater-South Beltrami-Mahnomen-
South Clearwater-Hubbard-West Becker-East Becker-Wilkin-
West Otter Tail-East Otter Tail-Wadena-Grant-Richland-
403 PM CDT Sat Oct 4 2025

This hazardous weather outlook is for portions of eastern North
Dakota, west central and northwest Minnesota.

.DAY ONE...This Evening and Tonight

Scattered thunderstorms are expected tonight. The main hazard
will be lightning.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

There is a chance for frost during the morning hours Monday
through Wednesday over parts of the region.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be required today.

In the hours before

Special weather statement, Oct 4, 8:13 PM CDT, 1 hour 45 minutes before
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Special weather statement, Oct 4, 8:23 PM CDT, 1 hour 35 minutes before
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Special weather statement, Oct 4, 8:40 PM CDT, 1 hour 18 minutes before
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The office that day

Everything else NWS Grand Forks, ND issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 4, 8:13 PM CDTSpecial Weather StatementFGFKittson32 min
Oct 4, 8:23 PM CDTSpecial Weather StatementFGFRoseau37 min
Oct 4, 8:24 PM CDTSevere Thunderstorm WarningFGFRoseau51 min
Oct 4, 8:40 PM CDTSpecial Weather StatementFGFKittson35 min
Oct 4, 10:49 PM CDTSpecial Weather StatementFGFLake of the Woods26 min
Oct 5, 2:41 AM CDTWind AdvisoryFGFBecker, Clay, Clearwater, Grant, Hubbard, Kittson and 10 more16 hr
Oct 5, 2:57 PM CDTFrost AdvisoryFGFClay, Kittson, Marshall, Norman, Pennington, Polk and 2 more18 hr
Oct 5, 12:02 AM CDTSpecial Weather StatementFGFGrand Forks28 min
Oct 5, 2:57 PM CDTFreeze WarningFGFBenson, Cavalier, Eddy, Ramsey, Towner18 hr

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.