Alert archive / North Dakota / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 13, NWS Grand Forks, ND

June 2, 2026Cavalier County, Towner County, North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 2, 2026, 4:52 PM CDT for Cavalier County, Towner County, North Dakota. It was in force for 53 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 2, 2026, 4:52 PM CDT (21:52 UTC)
Expired
Jun 2, 2026, 5:45 PM CDT
In force
53 min
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon
Tornado
Possible
Hail
1.0 in
Wind
60.0 mph

Counties Cavalier County, ND, Towner County, ND

The radar

The Minot AFB radar (KMBX), 167 km from the middle of the area, began a volume at 21:53 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 2, 3:04 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 9.9 hours before the alert went out and 396 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 12:00Z on 2026-06-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2026-06-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 square meters per square second.1939Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2614 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
52 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

259 
WUUS53 KFGF 022152
SVRFGF
NDC019-095-022245-
/O.NEW.KFGF.SV.W.0013.260602T2152Z-260602T2245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Grand Forks ND
452 PM CDT Tue Jun 2 2026

The National Weather Service in Grand Forks has issued a

* Severe Thunderstorm Warning for...
  East central Towner County in northeastern North Dakota...
  Western Cavalier County in northeastern North Dakota...

* Until 545 PM CDT.

* At 451 PM CDT, severe thunderstorms were located along a line
  extending from near Hannah to 7 miles east of Cando, moving east at
  25 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Munich, Hampden, Clyde, Alsen, Wales, Sarles, and Calio.

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.

Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. These storms may cause serious injury and significant
property damage.

&&

LAT...LON 4900 9837 4854 9861 4854 9910 4900 9898
TIME...MOT...LOC 2151Z 248DEG 23KT 4902 9872 4852 9904 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Perroux
1 follow-up statement
682 
WWUS53 KFGF 022232
SVSFGF

Severe Weather Statement
National Weather Service Grand Forks ND
532 PM CDT Tue Jun 2 2026

NDC019-095-022245-
/O.CON.KFGF.SV.W.0013.000000T0000Z-260602T2245Z/
Towner ND-Cavalier ND-
532 PM CDT Tue Jun 2 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CDT
FOR EAST CENTRAL TOWNER AND WESTERN CAVALIER COUNTIES...

At 531 PM CDT, severe thunderstorms were located along a line
extending from 7 miles north of Maida to Alsen, moving east at 25
mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Munich, Hampden, Clyde, Alsen, Wales, Sarles, and Calio.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4900 9837 4854 9861 4854 9910 4900 9898
TIME...MOT...LOC 2231Z 248DEG 23KT 4911 9837 4861 9869 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Perroux

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 Jun 2, 2:56 PM CDT, 1 hour 56 minutes earlier. Its key messages:

  • There is a level 2 out of 5 risk for severe thunderstorms this afternoon and evening over the Devils Lake Basin into the northern Red River Valley. Weaker showers and thunderstorms could get as far east as the Red River later tonight.
  • There is a level 2 out of 5 risk for severe thunderstorms Wednesday afternoon and evening over the central and southern Red River Valley.
Area forecast discussion, Jun 2, 2:56 PM CDT, 1 hour 56 minutes before
Area Forecast Discussion
National Weather Service Grand Forks ND
256 PM CDT Tue Jun 2 2026

.KEY MESSAGES...

- There is a level 2 out of 5 risk for severe thunderstorms this
  afternoon and evening over the Devils Lake Basin into the
  northern Red River Valley. Weaker showers and thunderstorms
  could get as far east as the Red River later tonight.

- There is a level 2 out of 5 risk for severe thunderstorms
  Wednesday afternoon and evening over the central and southern
  Red River Valley.

&&

.DISCUSSION...
Issued at 256 PM CDT Tue Jun 2 2026

...Synopsis...

Southwesterly flow aloft with weak embedded shortwaves moving
through the Northern Plains will continue through tonight and
tomorrow, with the upper low moving every slowly across southern
Canada. South to southeasterly winds will continue through
tonight, then the surface trough axis will push into the CWA by
tomorrow night. The rest of this afternoon and evening looks to
remain active, with another round tomorrow. The upper system
finally starts to pull eastward on Thursday. A weak shortwave on
Friday, but then upper ridging builds into the Plains and
Midwest over the weekend. Warmer than average temperatures
should return. Southwesterly flow aloft again for the first part
of next week, so warm temperatures will continue and chances for
a more active convective pattern increase. Devil is in the
details.

...Severe potential in northeastern ND tonight...

Southeasterly winds have brought dew points into the low 60s
across many locations in eastern ND, and with mostly sunny skies
temperatures have climbed into the 80s. A fair amount of cumulus
extending from the James River Valley up into the Devils Lake
Basin. SPC mesoanalysis page has 2500 J/kg of ML CAPE, and even
higher surface based values. Deep layer bulk shear is pretty
weak south of Highway 2, but around 35 to 40 kts was enough to
get a few isolated supercells going that have been moving off
into Canada. The main trough axis and cold front are still well
to our west, with some modest convection so far. Many of the
CAMs have convective intensity in that area increasing in the
next few hours, which fits the front moving into the region of
high instability. The storms out west should become linear as
they move into our western counties later this evening. Damaging
winds and hail will be the main threat, but will have to watch
the 0-3km shear in case the line become perpendicular to the
shear vector and get a brief tornado spin-up. Heavy rain could
be an issue as we head into tonight and early tomorrow, as there
will be some training as the upper flow lines up nearly parallel
to the surface boundary. With 1.2 inches of PWATs, backbuilding
storms could become a problem even with our recent fairly dry
conditions.

...Severe potential on Wednesday...

Weakening showers and thunderstorms will be ongoing tomorrow
morning near the Red River, so that may have a bit of an impact
on how things develop tomorrow afternoon. Some ensemble members
have CAPE approaching 2000 J/kg in southeastern ND, and deep
layer bulk shear should be a bit better further south than today
with 30-40 kts. CIPS and machine learning both have some 15
percent probabilities of severe impacts. HREF probabilities for
updraft helicity tracks have a bullseye over SD, but over 70
percent chance for 4 hour max UH tracks nosing into Ransom and
Sargent counties. Main threat will be in southeastern ND into
the southern and central RRV south of Highway 2. Large hail over
2 inches will be possible, but can't rule out a tornado spin up
or some damaging wind.

&&

.AVIATION /18Z TAFS THROUGH 18Z WEDNESDAY/...
Issued at 1232 PM CDT Tue Jun 2 2026

VFR conditions currently and for the next several hours, as
convection has already started to develop between KDVL and KGFK.
Cells are pretty isolated so far and not expected to impact the
airports yet. Additional showers and thunderstorms will move
into the KDVL area later this evening and possibly KGFK by late
evening to the early morning hours. Less certain how far south
and east to go as the convection weakens, but have some prob30
for showers at KFAR and KTVF late tonight into tomorrow morning.
Some of the models bring in some MVFR ceilings behind the
convection, but only certain enough for KDVL to include in the
TAFs at this point. Winds may be impacted by convection, turning
to the west or even northwest for a time in northeastern ND, but
will return to southeasterly. Gusts should remain below 25 kts
except near thunderstorms.

&&

.FGF WATCHES/WARNINGS/ADVISORIES...
ND...None.
MN...None.

&&

DISCUSSION...Lynch
AVIATION...JR
Hazardous weather outlook, Jun 2, 7:17 AM CDT, 9 hours 35 minutes before
Hazardous Weather Outlook
National Weather Service Grand Forks ND
717 AM CDT Tue Jun 2 2026

NDZ006-007-014-015-024-054-031230-
Towner-Cavalier-Benson-Ramsey-Eddy-Western Walsh-
717 AM CDT Tue Jun 2 2026

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

.DAY ONE...Today and Tonight

There is a level 2 out of 5 risk for severe thunderstorms
this afternoon and evening over the Devils Lake Basin. The main
hazards are hail to golf balls, wind gusts 60 mph and a tornado
is possible. Heavy rainfall may occur as wel.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

There is a level 1 out of 5 risk for severe thunderstorms
Wednesday with continued hail and wind threat.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be required today.

MNZ001>005-007-008-013>016-022>024-027>032-040-NDZ008-016-026>030-
038-039-049-052-053-031230-
West Polk-Norman-Clay-Kittson-Roseau-West Marshall-East Marshall-
Pennington-Red Lake-East Polk-North Clearwater-Mahnomen-
South Clearwater-Hubbard-West Becker-East Becker-Wilkin-
West Otter Tail-East Otter Tail-Wadena-Grant-Pembina-
Eastern Walsh-Nelson-Grand Forks-Griggs-Steele-Traill-Barnes-Cass-
Ransom-Sargent-Richland-
717 AM CDT Tue Jun 2 2026

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

.DAY ONE...Today and Tonight

Showers and thunderstorms increase in coverage slowly from the
west tonight. Isolated severe possible this evening in parts of
northeast North Dakota.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

There is a level 2 out of 5 risk for severe thunderstorms for
southeast North Dakota and parts of west central Minnesota on
Wednesday. Level 1 out of 5 risk for severe thunderstorms
elsewhere on Wednesday. Main hazards are hail to golf ball and 60
mph wind. Localized heavy rainfall as well.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated today.

MNZ006-009-017-031230-
Lake Of The Woods-North Beltrami-South Beltrami-
717 AM CDT Tue Jun 2 2026

This hazardous weather outlook is for portions of northwest
Minnesota.

.DAY ONE...Today and Tonight

Near critical fire weather conditions this afternoon with
RH values dropping to the 20 to 25 percent range and southeast
winds 10 to 15 mph.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

There is a level 1 out of 5 risk for severe thunderstorms
Wednesday with hail and wind threat.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated today.

In the hours before

Special weather statement, Jun 2, 11:30 AM CDT, 5 hours 22 minutes before
Special Weather Statement
National Weather Service Grand Forks ND
1130 AM CDT Tue Jun 2 2026

NDZ015-054-021700-
Western Walsh County ND-Ramsey ND-
1130 AM CDT Tue Jun 2 2026

...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN RAMSEY AND
NORTHWESTERN WALSH COUNTIES THROUGH NOON CDT...

At 1130 AM CDT, Doppler radar was tracking a strong thunderstorm near
Lawton, or 26 miles northeast of Devils Lake, moving northeast at 25
mph.

HAZARD...Nickel size hail.

SOURCE...Radar indicated.

IMPACT...Minor hail damage to vegetation is possible.

Locations impacted include...
Edmore, Adams, Fairdale, and Lawton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4854 9805 4846 9790 4825 9845 4835 9857
      4855 9836
TIME...MOT...LOC 1630Z 223DEG 24KT 4835 9841

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...<30 MPH

Perroux
Special weather statement, Jun 2, 12:00 PM CDT, 4 hours 52 minutes before
Special Weather Statement
National Weather Service Grand Forks ND
1200 PM CDT Tue Jun 2 2026

NDZ007-015-054-021730-
Western Walsh County ND-Ramsey ND-Cavalier ND-
1200 PM CDT Tue Jun 2 2026

...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN CAVALIER AND
NORTHEASTERN RAMSEY COUNTIES THROUGH 1230 PM CDT...

At 1200 PM CDT, Doppler radar was tracking a strong thunderstorm near
Fairdale, or 16 miles south of Langdon, moving northeast at 35 mph.

HAZARD...Nickel size hail.

SOURCE...Radar indicated.

IMPACT...Minor hail damage to vegetation is possible.

Locations impacted include...
Osnabrock, Milton, Nekoma, Fairdale, and Hove Mobile Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 4867 9792 4861 9793 4841 9824 4840 9840
      4851 9856 4873 9837
TIME...MOT...LOC 1700Z 210DEG 30KT 4852 9830

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...<30 MPH

Perroux
Local storm report, Jun 2, 3:26 PM CDT, 1 hour 26 minutes before
Preliminary Local Storm Report
National Weather Service Grand Forks ND
326 PM CDT Tue Jun 2 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0305 PM     Hail             Rocklake                48.79N 99.24W
06/02/2026  E1.25 Inch       Towner             ND   Public

            Hail slightly bigger than quarter size fell
            for 2 to 3 minutes.

&&

jk
Local storm report, Jun 2, 3:35 PM CDT, 1 hour 17 minutes before
Preliminary Local Storm Report
National Weather Service Grand Forks ND
335 PM CDT Tue Jun 2 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0310 PM     Hail             3 NNW Hansboro          48.99N 99.39W
06/02/2026  E1.75 Inch       Towner             ND   Public

&&

jk
Local storm report, Jun 2, 4:41 PM CDT, 11 minutes before
Preliminary Local Storm Report
National Weather Service Grand Forks ND
441 PM CDT Tue Jun 2 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1230 PM     Hail             2 E Osnabrock           48.67N 98.11W
06/02/2026  E1.00 Inch       Cavalier           ND   Public

&&

jk

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 2, 11:30 AM CDTSpecial Weather StatementFGFWalsh30 min
Jun 2, 12:00 PM CDTSpecial Weather StatementFGFCavalier30 min
Jun 2, 12:20 PM CDTSevere Thunderstorm WarningFGFCavalier, Pembina, Walsh55 min
Jun 2, 1:10 PM CDTSevere Thunderstorm WarningFGFPembina42 min
Jun 2, 2:39 PM CDTSevere Thunderstorm WarningFGFTowner66 min
Jun 2, 2:52 PM CDTSevere Thunderstorm WarningFGFTowner68 min
Jun 2, 3:39 PM CDTSevere Thunderstorm WarningFGFCavalier, Towner51 min
Jun 2, 3:47 PM CDTSevere Thunderstorm WarningFGFCavalier, Towner28 min
Jun 2, 3:55 PM CDTSevere Thunderstorm WarningFGFRamsey36 min
Jun 2, 4:04 PM CDTSevere Thunderstorm WarningFGFCavalier, Towner56 min
Jun 2, 5:07 PM CDTSevere Thunderstorm WarningFGFNelson, Ramsey53 min
Jun 2, 5:11 PM CDTSevere Thunderstorm WarningFGFBenson20 min
Jun 2, 5:27 PM CDTSevere Thunderstorm WarningFGFCavalier48 min
Jun 2, 5:30 PM CDTSevere Thunderstorm Warning Considerable damage threatFGFRamsey, Walsh41 min
Jun 2, 5:43 PM CDTSevere Thunderstorm WarningFGFCavalier46 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.