Alert archive / North Dakota / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 101, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 9, 2026, 5:23 PM CDT for Cavalier County, Ramsey County, Towner County, North Dakota. It was in force for 67 min. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jul 9, 2026, 5:23 PM CDT (22:23 UTC)
- Expired
- Jul 9, 2026, 6:30 PM CDT
- In force
- 67 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Tornado
- Possible
- Damage threat
- Considerable
- Hail
- 1.75 in
- Wind
- 60.0 mph
Counties Cavalier County, ND, Ramsey County, ND, Towner County, ND
The radar
The Minot AFB radar (KMBX), 145 km from the middle of the area, began a volume at 22:22 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 9, 5:28 PM CDT | HAIL 1.25 | 4 Ssw Sarles, ND | Lots of quarter size hail with some up to half dollar size. Time estimated from radar. |
| Jul 9, 6:15 PM CDT | HAIL 1 | 2 Sse Munich, ND | Largest stones were a quarter in size. Most hail was smaller. Time estimated from radar. |
| Jul 9, 6:25 PM CDT | HAIL 1 | 2 S Alsen, ND | Hail covered the ground. Largest stones were a quarter in size. Time estimated from radar. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched 3 storm reports to this severe thunderstorm warning; the first came 5 minutes after it went out.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
International Fa, MN (KINL), launched 12:00Z, 10.4 hours before the alert went out and 417 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2011 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- -53 m²/s²
- 0-3 km storm-relative helicity
- 3 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
168
WUUS53 KFGF 092223
SVRFGF
NDC019-071-095-092330-
/O.NEW.KFGF.SV.W.0101.260709T2223Z-260709T2330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Grand Forks ND
523 PM CDT Thu Jul 9 2026
The National Weather Service in Grand Forks has issued a
* Severe Thunderstorm Warning for...
Northeastern Towner County in northeastern North Dakota...
Southwestern Cavalier County in northeastern North Dakota...
North central Ramsey County in northeastern North Dakota...
* Until 630 PM CDT.
* At 523 PM CDT, a severe thunderstorm was located 7 miles northeast
of Rocklake, or 34 miles west of Langdon, moving southeast at 35
mph.
HAZARD...Golf ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
wind damage to roofs, siding, and trees.
* Locations impacted include...
Munich, Hampden, Clyde, Alsen, Calio, Calvin, and Loma.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4890 9928 4898 9908 4864 9843 4843 9882
TIME...MOT...LOC 2223Z 310DEG 31KT 4886 9911
TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Thomas4 follow-up statements
761
WWUS53 KFGF 092245
SVSFGF
Severe Weather Statement
National Weather Service Grand Forks ND
545 PM CDT Thu Jul 9 2026
NDC019-071-095-092330-
/O.CON.KFGF.SV.W.0101.000000T0000Z-260709T2330Z/
Towner ND-Cavalier ND-Ramsey ND-
545 PM CDT Thu Jul 9 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT
FOR EAST CENTRAL TOWNER...SOUTHWESTERN CAVALIER AND NORTH CENTRAL
RAMSEY COUNTIES...
At 545 PM CDT, a severe thunderstorm was located near Clyde, or 26
miles west of Langdon, moving southeast at 30 mph.
HAZARD...Golf ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
Locations impacted include...
Munich, Hampden, Clyde, Alsen, Calio, Calvin, and Loma.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4880 9911 4890 9893 4864 9843 4843 9882
4845 9884
TIME...MOT...LOC 2245Z 314DEG 25KT 4876 9896
TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Thomas414
WWUS53 KFGF 092308
SVSFGF
Severe Weather Statement
National Weather Service Grand Forks ND
608 PM CDT Thu Jul 9 2026
NDC095-092318-
/O.CAN.KFGF.SV.W.0101.000000T0000Z-260709T2330Z/
Towner ND-
608 PM CDT Thu Jul 9 2026
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL TOWNER COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until midnight CDT for
northeastern North Dakota.
&&
LAT...LON 4872 9897 4878 9885 4860 9850 4843 9882
TIME...MOT...LOC 2308Z 320DEG 22KT 4865 9885
$$
NDC019-071-092330-
/O.CON.KFGF.SV.W.0101.000000T0000Z-260709T2330Z/
Cavalier ND-Ramsey ND-
608 PM CDT Thu Jul 9 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT
FOR SOUTHWESTERN CAVALIER AND NORTH CENTRAL RAMSEY COUNTIES...
At 608 PM CDT, a severe thunderstorm was located over Munich, or 23
miles west of Langdon, moving southeast at 25 mph.
HAZARD...Golf ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
Locations impacted include...
Munich, Hampden, and Alsen.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted act quickly and move to a place
of safety inside a sturdy structure, such as a basement or small
interior room.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4872 9897 4878 9885 4860 9850 4843 9882
TIME...MOT...LOC 2308Z 320DEG 22KT 4865 9885
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Thomas388
WWUS53 KFGF 092317
SVSFGF
Severe Weather Statement
National Weather Service Grand Forks ND
617 PM CDT Thu Jul 9 2026
NDC019-071-092330-
/O.CON.KFGF.SV.W.0101.000000T0000Z-260709T2330Z/
Cavalier ND-Ramsey ND-
617 PM CDT Thu Jul 9 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT
FOR SOUTHWESTERN CAVALIER AND NORTH CENTRAL RAMSEY COUNTIES...
At 617 PM CDT, a severe thunderstorm was located near Munich, or 22
miles southwest of Langdon, moving southeast at 30 mph.
HAZARD...Tennis ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
Locations impacted include...
Munich, Hampden, and Alsen.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted act quickly and move to a place
of safety inside a sturdy structure, such as a basement or small
interior room.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4866 9894 4875 9878 4860 9850 4843 9882
TIME...MOT...LOC 2317Z 320DEG 27KT 4861 9880
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...2.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Thomas661 WWUS53 KFGF 092322 SVSFGF Severe Weather Statement National Weather Service Grand Forks ND 622 PM CDT Thu Jul 9 2026 NDC019-071-092332- /O.EXP.KFGF.SV.W.0101.000000T0000Z-260709T2330Z/ Cavalier ND-Ramsey ND- 622 PM CDT Thu Jul 9 2026 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN CAVALIER AND NORTH CENTRAL RAMSEY COUNTIES WILL EXPIRE AT 630 PM CDT... The storm which prompted the warning has moved out of the area. Therefore, the warning will be allowed to expire. However, large hail is still possible with this thunderstorm. A Severe Thunderstorm Watch remains in effect until midnight CDT for northeastern North Dakota. Remember, a Severe Thunderstorm Warning still remains in effect for Southwest Cavalier and Northwest Ramsey. && LAT...LON 4866 9894 4875 9878 4860 9850 4843 9882 TIME...MOT...LOC 2322Z 310DEG 31KT 4859 9877 $$ Thomas
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 9, 1:30 PM CDT, 3 hours 53 minutes earlier. Its key messages:
- Level 2 out of 5 risk late afternoon and evening today for the Devils Lake area and a level 1 out of 5 risk tonight into the northern Red River valley. Hail and wind are the primary risk with any storms.
- Dangerous heat index values likely this weekend into Monday. The hottest temperatures are expected Sunday and Monday, with heat indices of 100 to 110 degrees likely.
Area forecast discussion, Jul 9, 1:30 PM CDT, 3 hours 53 minutes before
Area Forecast Discussion
National Weather Service Grand Forks ND
130 PM CDT Thu Jul 9 2026
.KEY MESSAGES...
- Level 2 out of 5 risk late afternoon and evening today for
the Devils Lake area and a level 1 out of 5 risk tonight into
the northern Red River valley. Hail and wind are the primary
risk with any storms.
- Dangerous heat index values likely this weekend into Monday.
The hottest temperatures are expected Sunday and Monday, with
heat indices of 100 to 110 degrees likely.
&&
.DISCUSSION...
Issued at 130 PM CDT Thu Jul 9 2026
...Synopsis...
Strong H5 ridging is developing over the Southwestern CONUS, which
will drift into the Central Rockies, then into the Midwest by late
this weekend. Ahead of this, a weak boundary is slowly moving
eastward into eastern North Dakota this afternoon and evening.
Scattered thunderstorm activity is expected along and ahead of the
boundary, with a few severe storms possible through late this
evening. Additional showers and isolated storms linger overnight as
the boundary moves very slowly to the east through midday Friday.
Warmer temperatures begin to build into the area heading into
Saturday, with highs expected to reach the upper 80s Friday
afternoon and the mid-90s Saturday afternoon. Hot and humid
conditions prevail Sunday and Monday, with air temps in the upper
90s to near 100 degrees, and heat index values upwards of 100-110
degrees. Heading into Tuesday, the H5 ridge should start to flatten
and drift westward, allowing northwest flow to return to the
Northern Plains and Upper Midwest. Temperatures Tuesday and
Wednesday are still expected to be above average, but with slightly
lower humidity.
...Severe Thunderstorm Chances This Afternoon and Evening...
A slow moving boundary will provide an axis of development for
showers and thunderstorms this afternoon and evening. Ahead of this
boundary, instability and shear are supportive of strong to severe
thunderstorms as early as mid afternoon. The main uncertainty will
be the timing of initiation, mainly due to ongoing thunderstorm
activity in central North Dakota and the western portions of the
Devils Lake Basin. This activity is providing just enough surface
inhibition in it's wake to potentially delay future convection until
later this afternoon. The overall environment remains supportive of
supercells, capable of all hazards once initiation occurs. Chances
are highest in the Devils Lake Basin, with slightly lower chances
across the Red River Valley.
...Dangerous Heat This Weekend into Monday...
Strong ridging is in the process of strengthening over the Central
Rockies, and is expected to build to the north and east through this
weekend. Anomalous heights upwards of 600dM are being highlighted by
the majority of ensemble members, allowing temps to climb well into
the 90s on Saturday, then approach the 100 degree mark on Sunday and
Monday. With dew points in the upper 60s to low 70s, heat index
values are expected to reach 100 degrees or higher, especially
Sunday and Monday as the ridge axis aligns atop the Northern Plains.
Wet bulb globe temps will climb into the upper 80s Sunday and
Monday, signifying high to extreme categorical heat risk both
days.
&&
.AVIATION /18Z TAFS THROUGH 18Z FRIDAY/...
Issued at 1234 PM CDT Thu Jul 9 2026
VFR conditions prevail through the period at all TAF sites
outside of thunderstorm activity. There is a chance for isolated
to scattered thunderstorms, mainly in the vicinity of KDVL and
KGFK late this afternoon and evening. Confidence in coverage is
quite low at this time, thus went with a PROB30 group.
Otherwise, minimal impact potential is expected at this time.
&&
.FGF WATCHES/WARNINGS/ADVISORIES...
ND...Extreme Heat Watch from Sunday morning through late Monday
night for NDZ006>008-014>016-024-026>030-038-039-049-
052>054.
MN...Extreme Heat Watch from Sunday morning through late Monday
night for MNZ001>005-007-008-013>015-029-030-040.
&&
DISCUSSION...Lynch
AVIATION...LynchHazardous weather outlook, Jul 9, 2:54 PM CDT, 2 hours 29 minutes before
Hazardous Weather Outlook National Weather Service Grand Forks ND 254 PM CDT Thu Jul 9 2026 MNZ001-004-007-NDZ008-016-027-029-030-038-039-049-052-102000- West Polk-Kittson-West Marshall-Pembina-Eastern Walsh-Grand Forks- Steele-Traill-Barnes-Cass-Ransom-Sargent- 254 PM CDT Thu Jul 9 2026 This hazardous weather outlook is for portions of eastern North Dakota and northwest Minnesota. .DAY ONE...This Afternoon and Tonight There is a level 1 out of 5 risk for severe thunderstorms across the northern Red River Valley and northeast North Dakota. Hazards could include hail up to the size of quarters, damaging wind gusts, and possibly a tornado. .DAYS TWO THROUGH SEVEN...Friday through Wednesday Dangerous heat index values likely this weekend into Monday. The hottest temperatures are expected Sunday and Monday, with heat indices of 100 to 110 degrees likely. .SPOTTER INFORMATION STATEMENT... Spotter activation may be required today. NDZ006-007-014-015-024-026-028-054-102000- Towner-Cavalier-Benson-Ramsey-Eddy-Nelson-Griggs-Western Walsh- 254 PM CDT Thu Jul 9 2026 This hazardous weather outlook is for portions of eastern North Dakota. .DAY ONE...This Afternoon and Tonight There is a level 2 out of 5 risk for severe thunderstorms across the northern Red River Valley and northeast North Dakota. Hazards could include hail up to the size of golf balls, damaging wind gusts, and possibly a tornado. .DAYS TWO THROUGH SEVEN...Friday through Wednesday Dangerous heat index values likely this weekend into Monday. The hottest temperatures are expected Sunday and Monday, with heat indices of 100 to 110 degrees likely. .SPOTTER INFORMATION STATEMENT... Spotter activation may be required today. MNZ002-003-005-006-008-009-013>017-022>024-027>032-040-NDZ053- 102000- Norman-Clay-Roseau-Lake Of The Woods-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-Richland- 254 PM CDT Thu Jul 9 2026 This hazardous weather outlook is for portions of eastern North Dakota, west central and northwest Minnesota. .DAY ONE...This Afternoon and Tonight The probability for widespread hazardous weather is low. .DAYS TWO THROUGH SEVEN...Friday through Wednesday Dangerous heat index values likely this weekend into Monday. The hottest temperatures are expected Sunday and Monday, with heat indices of 100 to 110 degrees likely. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated today.
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 1:26 PM CDT | Extreme Heat Watch | FGF | Barnes, Benson, Cass, Cavalier, Eddy, Grand Forks and 11 more | 48 hr |
| Jul 9, 4:18 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Towner | 57 min |
| Jul 9, 5:08 PM CDT | Severe Thunderstorm Warning | FGF | Benson | 67 min |
| Jul 9, 5:12 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier | 63 min |
| Jul 9, 5:33 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey, Towner | 57 min |
| Jul 9, 5:42 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Pembina | 63 min |
| Jul 9, 6:11 PM CDT | Severe Thunderstorm Warning | FGF | Benson | 64 min |
| Jul 9, 6:21 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Ramsey | 54 min |
| Jul 9, 6:36 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Ramsey | 54 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.