Alert archive / North Dakota / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 108, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 9, 2026, 9:46 PM CDT for Barnes County, Cass County, Ransom County, 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 9, 2026, 9:46 PM CDT (02:46 UTC)
- Expired
- Jul 9, 2026, 10:45 PM CDT
- In force
- 59 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
Counties Barnes County, ND, Cass County, ND, Ransom County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 87 km from the middle of the area, began a volume at 02:46 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 9, 5:27 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 2.8 hours before the alert went out and 216 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
- 1413 J/kg
- Mixed-layer CIN
- -111 J/kg
- Mixed-layer LCL
- 1261 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 145 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.0
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, 5:51 PM CDT, 3 hours 55 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, 5:51 PM CDT, 3 hours 55 minutes before
Area Forecast Discussion
National Weather Service Grand Forks ND
551 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 /00Z TAFS THROUGH 00Z SUNDAY/...
Issued at 551 PM CDT Thu Jul 9 2026
An area of low pressure and its warm and cold front will slide
east across North Dakota this evening giving a line a
thunderstorms that will likely have IFR conditions in it with
+TSRA. This line is expected to dive south and away from our
terminals after 06Z. At that time, shower activity may remain
overnight, but the thunderstorm threat decreases. Winds will be
southerly overnight before the cold front passes and turn more
northerly Friday after the cold front passes. Some chance for
more shower activity late in the TAF period, but the chances are
much lower.
&&
.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...Wolfe (DLH)Hazardous weather outlook, Jul 9, 2:54 PM CDT, 6 hours 52 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.
In the hours before
Local storm report, Jul 9, 5:52 PM CDT, 3 hours 54 minutes before
Preliminary Local Storm Report
National Weather Service Grand Forks ND
552 PM CDT Thu Jul 9 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0528 PM Hail 4 SSW Sarles 48.89N 99.03W
07/09/2026 M1.25 Inch Towner ND Trained Spotter
Lots of quarter size hail with some up to
half dollar size. Time estimated from radar.
&&Local storm report, Jul 9, 6:54 PM CDT, 2 hours 52 minutes before
Preliminary Local Storm Report
National Weather Service Grand Forks ND
654 PM CDT Thu Jul 9 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0615 PM Hail 2 SSE Munich 48.65N 98.82W
07/09/2026 E1.00 Inch Cavalier ND Public
Largest stones were a quarter in size. Most
hail was smaller. Time estimated from radar.
&&
BRLocal storm report, Jul 9, 7:03 PM CDT, 2 hours 43 minutes before
Preliminary Local Storm Report
National Weather Service Grand Forks ND
703 PM CDT Thu Jul 9 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0650 PM Hail 12 S Esmond 47.86N 99.79W
07/09/2026 E1.00 Inch Benson ND Public
Mostly peas, but a few dime to quarter sized
hail stones. Very heavy rainfall. Hail
lasted five minutes. Time estimated from
radar.
&&
BRLocal storm report, Jul 9, 7:21 PM CDT, 2 hours 25 minutes before
Preliminary Local Storm Report
National Weather Service Grand Forks ND
721 PM CDT Thu Jul 9 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0545 PM Tstm Wnd Dmg 6 ESE Wales 48.86N 98.48W
07/09/2026 Cavalier ND Public
Tree branches down. Time estimated from
radar.
&&
BRLocal storm report, Jul 9, 8:51 PM CDT, 55 minutes before
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<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
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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 |
|---|---|---|---|---|
| Jul 10, 12:35 PM CDT | Heat Advisory | FGF | Becker, Beltrami, Clay, Clearwater, Grant, Hubbard and 12 more | 32 hr |
| Jul 9, 7:41 PM CDT | Flash Flood Warning | FGF | Benson, Ramsey | 3 hr |
| Jul 9, 7:59 PM CDT | Tornado Warning | FGF | Eddy | 16 min |
| Jul 9, 9:04 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Griggs | 56 min |
| Jul 9, 10:31 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Ransom, Sargent | 59 min |
| Jul 10, 1:33 AM CDT | Special Weather Statement | FGF | Barnes | 42 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.