Alert archive / North Dakota / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 135, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 30, 2026, 1:30 PM CDT for Cass County, North Dakota. It was in force for 60 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 30, 2026, 1:30 PM CDT (18:30 UTC)
- Expired
- Jul 30, 2026, 2:30 PM CDT
- In force
- 60 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Cass County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 66 km from the middle of the area, began a volume at 18:33 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 12:00Z, 6.5 hours before the alert went out and 347 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
- 2262 J/kg
- Mixed-layer CIN
- -152 J/kg
- Mixed-layer LCL
- 933 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 242 m²/s²
- 0-3 km storm-relative helicity
- 280 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.2
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 30, 12:17 PM CDT, 1 hour 13 minutes earlier.
Area forecast discussion, Jul 30, 12:17 PM CDT, 1 hour 13 minutes before
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</html>Hazardous weather outlook, Jul 30, 1:22 PM CDT, 8 minutes before
Hazardous Weather Outlook National Weather Service Grand Forks ND 122 PM CDT Thu Jul 30 2026 MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052>054-311830- West Polk-Norman-Clay-Kittson-Roseau-Lake Of The Woods- West Marshall-East Marshall-North Beltrami-Pennington-Red Lake- East Polk-North Clearwater-South Beltrami-Mahnomen- South Clearwater-Hubbard-West Becker-East Becker-Wilkin- West Otter Tail-East Otter Tail-Wadena-Grant-Towner-Cavalier- Pembina-Benson-Ramsey-Eastern Walsh-Eddy-Nelson-Grand Forks- Griggs-Steele-Traill-Barnes-Cass-Ransom-Sargent-Richland- Western Walsh- 122 PM CDT Thu Jul 30 2026 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 storms this afternoon, with the main hazard wind gusts to 60 mph and hail up to 1 inch. Locally heavy rainfall may also lead to minor flooding. .DAYS TWO THROUGH SEVEN...Friday through Wednesday There is a low chance for strong thunderstorms Monday. .SPOTTER INFORMATION STATEMENT... Spotter activation may be required today.
In the hours before
Special weather statement, Jul 30, 8:26 AM CDT, 5 hours 4 minutes before
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</html>Special weather statement, Jul 30, 12:29 PM CDT, 1 hour 1 minute before
Special Weather Statement
National Weather Service Grand Forks ND
1229 PM CDT Thu Jul 30 2026
NDZ026-027-301800-
Nelson ND-Grand Forks ND-
1229 PM CDT Thu Jul 30 2026
...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN GRAND FORKS AND
NORTHEASTERN NELSON COUNTIES THROUGH 100 PM CDT...
At 1229 PM CDT, Doppler radar was tracking a strong thunderstorm near
Niagara, or 35 miles southwest of Grafton, moving northeast at 20
mph.
HAZARD...Wind gusts up to 50 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Petersburg, Niagara, McCanna, and Orr.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4806 9809 4820 9780 4819 9778 4797 9755
4788 9793
TIME...MOT...LOC 1729Z 237DEG 18KT 4803 9793
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
TGSpecial weather statement, Jul 30, 1:15 PM CDT, 15 minutes before
Special Weather Statement
National Weather Service Grand Forks ND
115 PM CDT Thu Jul 30 2026
NDZ039-049-301845-
Ransom ND-Cass ND-
115 PM CDT Thu Jul 30 2026
...STRONG THUNDERSTORMS WILL IMPACT NORTHWESTERN RANSOM AND
SOUTHEASTERN CASS COUNTIES THROUGH 145 PM CDT...
At 115 PM CDT, Doppler radar was tracking a cluster of strong
thunderstorms along a line extending from near Prosper to near Fort
Ransom. These storms were nearly stationary.
HAZARD...Wind gusts up to 50 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.
Locations impacted include...
Southwestern Fargo, West Fargo, Horace, Casselton, Lisbon, Enderlin,
and Mapleton.
This includes Interstate 94 in North Dakota between mile markers 320
and 348.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4628 9803 4652 9803 4663 9775 4663 9768
4667 9768 4689 9744 4713 9701 4692 9689
4673 9684 4665 9705 4663 9728
TIME...MOT...LOC 1815Z 223DEG 2KT 4695 9695 4646 9797
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH
TGThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 7:22 AM CDT | Special Weather Statement | FGF | Marshall | 23 min |
| Jul 30, 4:19 PM CDT | Severe Thunderstorm Warning | FGF | Polk | 56 min |
| Jul 30, 5:02 PM CDT | Flash Flood Warning | FGF | Polk | 3 hr |
| Jul 30, 5:16 PM CDT | Areal Flood Advisory | FGF | Beltrami, Pennington | 3 hr |
| Jul 30, 8:26 AM CDT | Special Weather Statement | FGF | Benson | 49 min |
| Jul 30, 9:06 AM CDT | Special Weather Statement | FGF | Benson | 24 min |
| Jul 30, 12:29 PM CDT | Special Weather Statement | FGF | Grand Forks | 31 min |
| Jul 30, 1:15 PM CDT | Special Weather Statement | FGF | Cass | 30 min |
| Jul 30, 2:02 PM CDT | Areal Flood Advisory | FGF | Cass | 117 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 2026Every severe thunderstorm warning in 2026
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.