Alert archive / Minnesota / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 49, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 23, 2026, 5:04 PM CDT for Becker County, Minnesota. It was in force for 27 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 23, 2026, 5:04 PM CDT (22:04 UTC)
- Expired
- Jun 23, 2026, 5:31 PM CDT
- In force
- 27 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 1.5 in
- Wind
- 50.0 mph
County Becker County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 160 km from the middle of the area, began a volume at 22:02 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 nearest sounding before it
International Fa, MN (KINL), launched 12:00Z, 10.1 hours before the alert went out and 240 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1542 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 40 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
204
WUUS53 KFGF 232204
SVRFGF
MNC005-232300-
/O.NEW.KFGF.SV.W.0049.260623T2204Z-260623T2300Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Grand Forks ND
504 PM CDT Tue Jun 23 2026
The National Weather Service in Grand Forks has issued a
* Severe Thunderstorm Warning for...
Northeastern Becker County in northwestern Minnesota...
* Until 600 PM CDT.
* At 503 PM CDT, a severe thunderstorm was located over southern
White Earth Nation, or 15 miles northeast of Detroit Lakes, moving
southeast at 20 mph.
HAZARD...Ping pong ball size hail.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect
damage to roofs, siding, windows, and vehicles.
* Locations impacted include...
Northern Toad Lake, southwestern Many Point Lake, Osage, Pine
Point, Wolf Lake, Ponsford, and Snellman.
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.
If on or near area lakes within eastern Becker County, get away from
the water and move indoors or inside a vehicle. Remember, lightning
can strike out to 15 miles from the parent thunderstorm. If you can
hear thunder, you are close enough to be struck by lightning. Move
to safe shelter now! Do not be caught on the water in a
thunderstorm.
&&
LAT...LON 4679 9535 4699 9571 4708 9563 4700 9517
4698 9517
TIME...MOT...LOC 2203Z 299DEG 18KT 4698 9560
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH
$$
CJ2 follow-up statements
325
WWUS53 KFGF 232222
SVSFGF
Severe Weather Statement
National Weather Service Grand Forks ND
522 PM CDT Tue Jun 23 2026
MNC005-232300-
/O.CON.KFGF.SV.W.0049.000000T0000Z-260623T2300Z/
Becker MN-
522 PM CDT Tue Jun 23 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM CDT
FOR EAST CENTRAL BECKER COUNTY...
At 521 PM CDT, a severe thunderstorm was located near Snellman, or 18
miles northeast of Detroit Lakes, moving southeast at 20 mph.
HAZARD...Quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
Locations impacted include...
Northern Toad Lake, Osage, Pine Point, Wolf Lake, Ponsford, and
Snellman.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4694 9563 4704 9558 4700 9517 4698 9517
4679 9535
TIME...MOT...LOC 2221Z 299DEG 18KT 4694 9548
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH
$$
CJ482
WWUS53 KFGF 232231
SVSFGF
Severe Weather Statement
National Weather Service Grand Forks ND
531 PM CDT Tue Jun 23 2026
MNC005-232241-
/O.CAN.KFGF.SV.W.0049.000000T0000Z-260623T2300Z/
Becker MN-
531 PM CDT Tue Jun 23 2026
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL BECKER COUNTY IS
CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.
&&
LAT...LON 4694 9563 4704 9558 4700 9517 4698 9517
4679 9535
TIME...MOT...LOC 2229Z 299DEG 18KT 4691 9541
$$
CJWhat 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 23, 12:33 PM CDT, 4 hours 31 minutes earlier. Its key messages:
- There is a level 2 out of 5 risk for severe thunderstorms this afternoon into early evening, mainly along and east of the Red River Valley. The main hazards will be hail up to the size of golfs balls and tornadoes.
- Growing signal for strong to severe storms late this weekend into early next week.
Area forecast discussion, Jun 23, 12:33 PM CDT, 4 hours 31 minutes before
Area Forecast Discussion National Weather Service Grand Forks ND 1233 PM CDT Tue Jun 23 2026 .KEY MESSAGES... - There is a level 2 out of 5 risk for severe thunderstorms this afternoon into early evening, mainly along and east of the Red River Valley. The main hazards will be hail up to the size of golfs balls and tornadoes. - Growing signal for strong to severe storms late this weekend into early next week. && .DISCUSSION... Issued at 1233 PM CDT Tue Jun 23 2026 ...Synopsis... The system seen on water vapor imagery across southern Manitoba has become occluded and will very slowly propagate east/southeast. Large scale pattern will become zonal toward the end of the week, and then transition to southwest flow aloft by early next week as western CONUS troughing develops. Ensemble guidance in good agreement with how the large scale pattern will evolve, albeit with lower confidence in smaller scale features. ..Severe storm potential today... Warm sector/theta-e ridge will be near or just east of the valley by early afternoon, with CI anticipated along the leading edge of this boundary early-mid afternoon. Given expected storm motion off the boundary, anticipate discrete mode. Environment will be supportive of supercell type storms (albeit low topped given MLCAPE 1000-1500 J/kg) given effective bulk shear near 30 kts and effective SRH near 200 m2/s2 (environment supportive for stronger low level mesocyclones). Severe hail up to golf balls anticipated given straight hodograph structure, lower freezing level, and favorable mid level lapse rates. Also anticipate tornadoes given the favorable low level dynamics. AI guidance (Nadocast and Storm Net) back up this thinking. The most likely scenario at time has the stronger discrete low topped supercell storms developing early afternoon (1-3p) along the eastern edge of the valley affecting much of northwest and west central Minnesota through 6-7p. There should be 2-5 storms at any given time. This is the period when low topped supercells will bring the largest hail and tornado threat. There is the potential for additional development closer to the sfc low/upper low later in the afternoon affecting the northern valley into northwest Minnesota, although more uncertainty exists with this activity. ...Weekend into early next week severe potential... The synoptic ingredients typical for producing severe storms in our region will be in place - and conceptually the large scale pattern supports severe storm outbreaks. Details are always the tricky part, especially where individual upper waves track and how far east the greater instability will be. There does remain some uncertainty with exactly how amplified the large scale pattern will be and this will influence those details. && .AVIATION /18Z TAFS THROUGH 18Z WEDNESDAY/... Issued at 1233 PM CDT Tue Jun 23 2026 Showers/storms currently moving off the east and will be clear of all TAF sites by 18z. A narrow area of MVFR cigs now just east of the valley will affect KTVF and KBJI for a brief period this afternoon, although most likely cigs will eventually become low VFR. Main aviation threat will be additional thunderstorm development this afternoon into the evening. Storm coverage will be limited making thunderstorm forecasting for each individual TAF site tricky. Went with a Prob30 for the sites that have the best chance to see a storm or two (KGFK, KTVF, and KBJI). && .FGF WATCHES/WARNINGS/ADVISORIES... ND...None. MN...None. && DISCUSSION...TG AVIATION...TG
Hazardous weather outlook, Jun 23, 12:40 PM CDT, 4 hours 24 minutes before
Hazardous Weather Outlook National Weather Service Grand Forks ND 1240 PM CDT Tue Jun 23 2026 MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024- 026>030-038-039-049-052>054-241115- 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- 1240 PM CDT Tue Jun 23 2026 This hazardous weather outlook is for portions of eastern North Dakota, west central and northwest Minnesota. .DAY ONE...Today and Tonight There is a level 2 out of 5 risk for severe thunderstorms this afternoon and evening. Hail up to the size of golf balls and tornadoes will be the main threats. .DAYS TWO THROUGH SEVEN...Wednesday through Monday There is a medium chance for strong thunderstorms late Saturday and Sunday. The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation may be required today.
In the hours before
Local storm report, Jun 23, 11:04 AM CDT, 6 hours before
Preliminary Local Storm Report
National Weather Service Grand Forks ND
1104 AM CDT Tue Jun 23 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0905 AM Tstm Wnd Dmg 2 N Breckenridge 46.29N 96.59W
06/23/2026 Wilkin MN Public
All of a sudden things started hitting the
house. Many trees down, a fence down,
shingle off and holes in the siding. The
neighboring corn field is stripped a
complete loss.
&&Special weather statement, Jun 23, 11:14 AM CDT, 5 hours 50 minutes before
Special Weather Statement
National Weather Service Grand Forks ND
1114 AM CDT Tue Jun 23 2026
MNZ031-231645-
East Otter Tail MN-
1114 AM CDT Tue Jun 23 2026
...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN OTTER TAIL COUNTY
THROUGH 1145 AM CDT...
At 1113 AM CDT, Doppler radar was tracking a strong thunderstorm
capable of producing a landspout near Parkers Prairie, or 19 miles
north of Alexandria, moving east at 35 mph.
HAZARD...Landspouts and wind gusts of 50 to 55 mph.
SOURCE...Radar indicated.
IMPACT...Minor damage to outdoor objects is possible. Gusty winds
could knock down tree limbs and blow around unsecured
objects.
Locations impacted include...
Parkers Prairie, Urbank, Almora, and Wrightstown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Conditions are favorable for the development of weak, brief funnel
clouds. This type of funnel cloud is harmless, but on rare occasions
they can briefly touch down, producing wind gusts over 50 mph. If a
funnel cloud is spotted move indoors and report your sighting to the
National Weather Service.
&&
LAT...LON 4627 9549 4639 9516 4628 9515 4611 9515
4611 9552
TIME...MOT...LOC 1613Z 252DEG 32KT 4618 9540
LANDSPOUT...POSSIBLE
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH
CJSpecial weather statement, Jun 23, 1:58 PM CDT, 3 hours 6 minutes before
Special Weather Statement National Weather Service Grand Forks ND 158 PM CDT Tue Jun 23 2026 MNZ004-007-NDZ006>008-015-016-054-232200- Kittson-West Marshall-Towner-Cavalier-Pembina-Ramsey- Eastern Walsh-Western Walsh- Including the cities of Hallock, Warren, Cando, Langdon, Cavalier, Drayton, Devils Lake, Grafton, and Lankin 158 PM CDT Tue Jun 23 2026 ...FUNNEL CLOUD POTENTIAL ACROSS FAR NORTHEAST NORTH DAKOTA AND NORTHERN RED RIVER VALLEY... Showers and thunderstorms have developed across far northeast North Dakota and the northern Red River Valley. Conditions are favorable for funnel clouds with any thunderstorm that develops within this area. These types of funnel clouds are usually short lived, however, they can and occasionally do touch the ground and cause minor damage. Therefore, if you see a funnel cloud, take cover immediately. South of this area, conditions are favorable for stronger storms.
Local storm report, Jun 23, 2:32 PM CDT, 2 hours 32 minutes before
Preliminary Local Storm Report
National Weather Service Grand Forks ND
232 PM CDT Tue Jun 23 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0231 PM Funnel Cloud 3 N East Grand Forks 47.98N 97.01W
06/23/2026 Polk MN Trained Spotter
Funnel cloud spotted north of town extending
about 1/3 of the way to the ground.
&&
TTLocal storm report, Jun 23, 3:21 PM CDT, 1 hour 43 minutes before
Preliminary Local Storm Report
National Weather Service Grand Forks ND
321 PM CDT Tue Jun 23 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0320 PM Hail 2 E Herman 45.82N 96.10W
06/23/2026 M0.25 Inch Grant MN Emergency Mngr
&&
TTThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 23, 11:14 AM CDT | Special Weather Statement | FGF | Otter Tail | 31 min |
| Jun 23, 2:59 PM CDT | Severe Thunderstorm Warning | FGF | Grant | 38 min |
| Jun 23, 4:34 PM CDT | Severe Thunderstorm Warning | FGF | Becker | 56 min |
| Jun 23, 6:43 PM CDT | Tornado Warning | FGF | Clearwater, Hubbard | 47 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 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.