Grand Forks, ND

Weather Forecast Office

Summary of the June 24th 2022 Severe Storms

Overview

Numerous bouts of severe storms were experienced within eastern North Dakota into northwest and west-central Minnesota throughout June 24, 2022. The area experienced hail up to the size of baseballs (2.75 inches), strong wind gusts up to 88 mph, tornadoes, and flash flooding.

Tornado
Wind & Hail
Photos & Video
Radar
Storm Reports
Rainfall
Environment

Tornadoes:

Tornado - Milton
CAVALIER COUNTY, ND

Date	6/24/2022
Time (Local)	256 - 258 PM CDT
EF Rating	0
Est. Peak Winds	75 MPH
Path Length	0.5 miles
Max Width	100 yards
Injuries/Deaths	0/0
Summary: Tornado was filmed by at least 2 individuals, one located south of Milton and one west of Milton on HWY 66. It slowly tracked for about half a mile to the northeast. The tornado produced a fairly wide dust plume as it moves across an open field.

Track Map

Tornado - Pekin
NELSON COUNTY, ND

Date	06/24/2022
Time (Local)	501 PM CDT
EF Rating	0
Est. Peak Winds	75 MPH
Path Length	0.2 miles
Max Width	100 yards
Injuries/Deaths	0/0
Summary: Persistent wall cloud with a brief funnel and large, dusty ground swirl occurred over an open field. This tornado lasted less than a minute and was viewed near Pekin.

Track Map

Tornado - McVille
NELSON COUNTY, ND

Date	6/24/2022
Time (Local)	515 PM CDT
EF Rating	0
Est. Peak Winds	75 MPH
Path Length	0.2 miles
Max Width	100 yards
Injuries/Deaths	0/0
Summary: A brief touchdown was noted in central Hamlin township. The tornado lasted less than a minute and was viewed from 1 NW McVille.

Track Map

Tornado - Larimore
GRAND FORKS COUNTY, ND

Date	06/24/2022
Time (Local)	534 - 540 PM CDT
EF Rating	0
Est. Peak Winds	80 MPH
Path Length	3 miles
Max Width	100 yards
Injuries/Deaths	0/0
Summary: Storm spotters reported a tornado occurring south of US HWY 2 and west of State HWY 18. The tornado tracked eastward near HWY 18, north of Larimore. Some tree branch damage was noted but nothing appeared to be damaged structurally.

Track Map

Tornado - Naytahwaush
MAHNOMEN COUNTY, MN

Date	06/24/2022
Time (Local)	916 - 923 PM CDT
EF Rating	1
Est. Peak Winds	105 MPH
Path Length	4 miles
Max Width	400 yards
Injuries/Deaths	0/0
Summary: THIS TORNADO WAS LIKELY WRAPPED IN DOWNBURST WINDS AND HEAVY RAIN AS IT TRACKED EAST NORTHEASTWARD ACROSS NORTH TWIN LAKE AND THE COMMUNITY OF NAYTAHWAUSH, ENDING AROUND 1 ENE OF TOWN BY 923 PM CDT. THE TORNADO SNAPPED OR UPROOTED NUMEROUS PINE, POPLAR, AND OAK TREES. IT TORE ROUGHLY 40 PERCENT OF THE ROOF DECKING OFF OF ONE HOUSE AND SHINGLES AND ROOFING MATERIALS OFF OF OTHER BUILDINGS ALONG ITS PATH

Track Map

Tornado - Rochert to Menahga
BECKER & WADENA COUNTIES, MN

Date	06/24/2022
Time (Local)	958 - 1035 PM CDT
EF Rating	2
Est. Peak Winds	115 MPH
Path Length	30.65 miles
Max Width	600 yards
Injuries/Deaths	0/0
Summary: THIS TORNADO WAS LIKELY WRAPPED IN DAMAGING DOWNBURST WINDS FOR PORTIONS OF ITS NEARLY 31-MILE PATH, THROUGH LITTLE TOAD LAKE, TOAD LAKE, AND WOLF LAKE, ENDING AROUND 2 SE OF MENAHGA BY 1035 PM CDT. NUMEROUS PINE, OAK, AND POPLAR TREES WERE VIOLENTLY SNAPPED OR UPROOTED ALONG WITH SEVERAL SNAPPED WOODEN POWER POLES. FARM OUTBUILDING ROOFS WERE RIPPED OFF. A MODERN HOG BARN, AN OLDER STYLE BARN ANNEX, AND SEVERAL SMALLER OUTBUILDINGS WERE BLOWN DOWN AT VARIOUS FARMSTEADS.

Track Map

The Enhanced Fujita (EF) Scale classifies tornadoes into the following categories:

EF0 Weak 65-85 mph	EF1 Moderate 86-110 mph	EF2 Significant 111-135 mph	EF3 Severe 136-165 mph	EF4 Extreme 166-200 mph	EF5 Catastrophic 200+ mph

Wind & Hail:

Wind

Wind gusts up to 88 mph caused damage in many locations across the area.


Tree snapped near Big Toad Lake, MN (Courtesy of: Yvonne Clements Kangas)	Tree down in Phelps, MN.	Tree Snapped 1 mile south of Vergas, MN.(Courtesy of: Elizabeth Wagner)	Tree Uprooted south of Park Rapids, MN. (Courtesy of: Julia Berquist)

Hail

Early in the morning, very large hail fell to the size of baseballs in areas of west-central Minnesota. Additional hail fell elsewhere across eastern North Dakota into northwest Minnesota later in the day.

Large Hail south of Ottertail in Otter Tail county, Minnesota

(Courtesy of: Marie Thorson)

Quarter-sized and larger hail in Otter Tail County, Minnesota

Hail ranging from Tennis Ball sized to quarter-sized on the Wadena/Otter Tail County line, Minnesota

Large Hail in Henning, Minnesota

Photos & Video

Photos and video of this event can be found our Twitter moment from June 24th located here.

Radar

The Composite Reflectivity from June 24th can be played below:

Storm Reports

An interactive map of storm reports can be found here.

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1247 AM CDT SAT JUN 25 2022

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

0631 AM     HAIL             BATTLE LAKE             46.29N 95.72W 
06/24/2022  E2.50 INCH       OTTER TAIL         MN   PUBLIC          

            HAIL FROM QUARTER TO TENNIS BALL SIZED ACROSS THE 
            COMMUNITY OVER A FEW MINUTE TIMEFRAME.

0640 AM     HAIL             HENNING                 46.32N 95.44W 
06/24/2022  E2.75 INCH       OTTER TAIL         MN   BROADCAST MEDIA 

            GOLF BALL TO BASEBALL SIZED HAIL AROUND THE HENNING AREA.
            PHOTOS AND REPORTS POSTED VIA SOCIAL MEDIA.

0659 AM     HAIL             6 S OTTERTAIL           46.34N 95.56W 
06/24/2022  E2.75 INCH       Otter Tail         MN   PUBLIC          

0710 AM     HAIL             6 NW WADENA             46.50N 95.22W 
06/24/2022  E1.25 INCH       Otter Tail         MN   PUBLIC          

0815 AM     HAIL             GREENBUSH               48.70N 96.18W 
06/24/2022  E1.75 INCH       ROSEAU             MN   CO-OP OBSERVER  

            QUARTER TO GOLF BALL SIZED HAIL.

0833 AM     HAIL             4 E HOLT                48.29N 96.11W 
06/24/2022  E1.00 INCH       Marshall           MN   PUBLIC          

            DIME TO QUARTER SIZED HAIL.

0908 AM     HAIL             2 N GOODRIDGE           48.17N 95.80W 
06/24/2022  E1.25 INCH       Marshall           MN   PUBLIC          

            QUARTER TO HALF DOLLAR SIZED HAIL.

0925 AM     HAIL             5 E GOODRIDGE           48.14N 95.70W 
06/24/2022  E2.00 INCH       Pennington         MN   PUBLIC          

            PING PONG BALL TO HEN EGG SIZED, BASED ON PHOTO FROM 
            NEIGHBOR.

0945 AM     HAIL             10 SE HIGH LANDING      47.95N 95.66W 
06/24/2022  E1.50 INCH       Pennington         MN   PUBLIC          

            LARGE HAIL OFF AND ON THROUGH 955 AM CDT. 

1035 AM     HAIL             2 N ISLAND LAKE         47.82N 95.02W 
06/24/2022  E1.00 INCH       Beltrami           MN   PUBLIC          

            DIME TO QUARTER SIZED HAIL NEAR THE SEVEN CLANS CASINO.

1130 AM     HAIL             1 N ALIDA               47.40N 95.23W 
06/24/2022  E1.00 INCH       Clearwater         MN   PUBLIC          

            A FEW QUARTER SIZED HAIL. 

1250 PM     HAIL             6 W MENTOR              47.70N 96.27W 
06/24/2022  E1.00 INCH       Polk               MN   PUBLIC          

            DIME TO QUARTER SIZED HAIL OFF AND ON OVER SEVERAL 
            MINUTES.

0201 PM     HAIL             5 ESE ADAMS             48.39N 97.97W 
06/24/2022  E0.75 INCH       Walsh              ND   BROADCAST MEDIA 

0218 PM     TSTM WND GST     5 N ADAMS               48.49N 98.07W 
06/24/2022  M52.00 MPH       Walsh              ND   MESONET         

            PEAK WIND MEASURED AT AN NDAWN STATION AT 10 METERS.

0300 PM     HAIL             2 WNW BROCKET           48.22N 98.40W 
06/24/2022  E1.00 INCH       Ramsey             ND   PUBLIC          

0312 PM     FUNNEL CLOUD     3 NW SHEYENNE           47.86N 99.16W 
06/24/2022                   Benson             ND   STORM CHASER    

            VIDEO WITH PERSISTENT WALL CLOUD AND FUNNEL, LOCATED TO 
            NORTHWEST OF SHEYENNE. SPOTTER LOCATED NEAR SHEYENNE.

0315 PM     FUNNEL CLOUD     5 SW OBERON             47.87N 99.28W 
06/24/2022                   Benson             ND   STORM CHASER    

            PERSISTENT WALL CLOUD WITH POSSIBLE FUNNEL LOCATED TO 
            WNW. SPOTTER LOCATED NEAR SHEYENNE.

0350 PM     TSTM WND GST     1 S EDINBURG            48.48N 97.86W 
06/24/2022  M55.00 MPH       Walsh              ND   MESONET         

            PEAK WIND MEASURED AT AN NDDOT RWIS SENSOR.

0427 PM     TSTM WND GST     1 E BROCKET             48.21N 98.33W 
06/24/2022  M60.00 MPH       Ramsey             ND   MESONET         

            PEAK WIND MEASURED AT AN NDAWN STATION AT 10 METERS.

0430 PM     TSTM WND DMG     3 NE TOKIO              47.96N 98.77W 
06/24/2022                   Benson             ND   PUBLIC          

            LARGE TREE BRANCHES DOWN AT BLACK TIGER BAY.

0431 PM     FUNNEL CLOUD     3 NE WARWICK            47.89N 98.66W 
06/24/2022                   Benson             ND   STORM CHASER    

            BRIEF FUNNEL. SPOTTER LOCATED ABOUT 3 ESE OF WARWICK.

0501 PM     TORNADO          PEKIN                   47.79N 98.33W 
06/24/2022                   NELSON             ND   STORM CHASER    

            POSSIBLE TORNADO VIEWED NEAR PEKIN.

0504 PM     TSTM WND GST     2 NE PEKIN              47.81N 98.30W 
06/24/2022  M54.00 MPH       Nelson             ND   MESONET         

            PEAK WIND MEASURED AT AN NDAWN STATION AT 10 METERS.

0508 PM     TSTM WND GST     2 W MICHIGAN            48.03N 98.16W 
06/24/2022  M50.00 MPH       Nelson             ND   MESONET         

            PEAK WIND MEASURED AT AN NDAWN STATION AT 3 METERS.

0515 PM     TORNADO          4 N MCVILLE             47.82N 98.18W 
06/24/2022                   Nelson             ND   STORM CHASER    

            A BRIEF TOUCHDOWN WAS NOTED IN CENTRAL HAMLINE TOWNSHIP 
            BU SPOTTERS LOCATED APPROXIMATELY 1 NW OF MCVILLE. 
            TOUCHDOWN LASTED LESS THAN A MINUTE.

0534 PM     TORNADO          2 N LARIMORE            47.94N 97.63W 
06/24/2022                   Grand Forks        ND   LAW ENFORCEMENT 

            STORM SPOTTERS REPORT TORNADO OCCURRING SOUTH OF HIGHWAY 
            2 AND WEST OF HWY 18.

0541 PM     TSTM WND GST     2 E LOGAN CENTER        47.80N 97.78W 
06/24/2022  M55.00 MPH       Grand Forks        ND   MESONET         

            PEAK WIND MEASURED AT AN NDAWN SENSOR AT 10 METERS.

0557 PM     TSTM WND GST     6 SE KEMPTON            47.76N 97.52W 
06/24/2022  M54.00 MPH       Grand Forks        ND   MESONET         

            PEAK WIND MEASURED AT AN NDAWN AT 3 METERS.

0612 PM     HAIL             5 WNW LARIMORE          47.94N 97.73W 
06/24/2022  E1.75 INCH       Grand Forks        ND   PUBLIC          

            IN AND OUT OF QUARTER TO GOLF BALL SIZED HAIL DRIVING ON 
            HIGHWAY 2.

0620 PM     TSTM WND GST     4 NNW GRAND FORKS       47.97N 97.11W 
06/24/2022  M62.00 MPH       Grand Forks        ND   MESONET         

            PEAK WIND MEASURED AT AN NDDOT RWIS ON INTERSTATE 29.

0637 PM     TSTM WND GST     6 SW WARREN             48.13N 96.86W 
06/24/2022  M54.00 MPH       Polk               MN   MESONET         

            PEAK WIND MEASURED AT AN NDAWN STATION AT 3 METERS.

0641 PM     TSTM WND GST     3 SSE OSLO              48.15N 97.10W 
06/24/2022  M64.00 MPH       Polk               MN   MESONET         

            PEAK WIND MEASURED AT A PERSONAL WEATHER STATION.

0646 PM     TSTM WND GST     7 N EAST GRAND FORKS    48.03N 97.02W 
06/24/2022  M88.00 MPH       Polk               MN   MESONET         

            PEAK WIND MEASSURED AT A PERSONAL WEATHER STATION.

0714 PM     TSTM WND DMG     3 S GRAND FORKS         47.87N 97.06W 
06/24/2022                   Grand Forks        ND   NWS EMPLOYEE    

            LARGE 4 TO 8 INCH DIAMETER TREE BRANCHES AND LIMBS BROKEN
            DOWN AROUND SOUTH GRAND FORKS.

0744 PM     TSTM WND GST     10 W ADA                47.30N 96.73W 
06/24/2022  M58.00 MPH       Norman             MN   MESONET         

            PEAK WIND MEASURED AT A MNDOT RWIS STATION ON HIGHWAY 
            200.

0758 PM     TSTM WND GST     2 WNW KARLSTAD          48.59N 96.56W 
06/24/2022  M72.00 MPH       Kittson            MN   MESONET         

            PEAK WIND MEASURED AT AN RWIS STATION NEAR HIGHWAY 11. 
            TIME ESTIMATED BASED ON RADAR AND OTHER NEARBY WIND 
            SENSOR REPORTS.

0815 PM     HAIL             3 N HUNTER              47.24N 97.22W 
06/24/2022  E1.00 INCH       Cass               ND   TRAINED SPOTTER 

0825 PM     TSTM WND GST     3 S BROOKS              47.77N 96.00W 
06/24/2022  M65.00 MPH       Red Lake           MN   MESONET         

            PEAK WIND MEASURED AT THE MNDOT RWIS ON HIGHWAY 59.

0843 PM     TSTM WND GST     3 S WAUKON              47.33N 96.13W 
06/24/2022  M56.00 MPH       Norman             MN   MESONET         

            PEAK WIND MEASURED AT AN NDAWN AT 3 METERS.

0901 PM     TSTM WND GST     4 SSE MAHNOMEN          47.26N 95.94W 
06/24/2022  M59.00 MPH       Mahnomen           MN   MESONET         

            PEAK WIND MEASURED AT THE MNDOT RWIS ON HIGHWAY 59.

0907 PM     TSTM WND GST     3 S MOORHEAD            46.82N 96.76W 
06/24/2022  E70.00 MPH       Clay               MN   TRAINED SPOTTER 

0911 PM     TSTM WND GST     2 WNW LENGBY            47.53N 95.67W 
06/24/2022  M58.00 MPH       Polk               MN   MESONET         

0911 PM     TSTM WND DMG     FARGO                   46.88N 96.82W 
06/24/2022                   CASS               ND   BROADCAST MEDIA 

            POWER OUTAGES AROUND CENTRAL FARGO.

0912 PM     FUNNEL CLOUD     3 SE GOODRIDGE          48.11N 95.76W 
06/24/2022                   Pennington         MN   LAW ENFORCEMENT 

            PERSISTENT WALL CLOUD AND BRIEF FUNNEL.

0916 PM     TSTM WND GST     8 E GOODRIDGE           48.14N 95.63W 
06/24/2022  M71.00 MPH       Pennington         MN   MESONET         

            PEAK WIND MEASURED AT A MNDOT RWIS STATION ON HWY 1.

0921 PM     TSTM WND GST     2 WNW LENGBY            47.53N 95.67W 
06/24/2022  M83.00 MPH       Polk               MN   MESONET         

            PEAK WIND MEASURED AT THE MNDOT RWIS STATION ALONG 
            HIGHWAY 2.

0925 PM     TSTM WND GST     2 E WOLVERTON           46.56N 96.69W 
06/24/2022  M63.00 MPH       Wilkin             MN   MESONET         

            PEAK WIND MEASURED AT AN NDAWN STATION.

0955 PM     TSTM WND GST     2 WNW DETROIT LAKES     46.82N 95.88W 
06/24/2022  M54.00 MPH       Becker             MN   AWOS            

            PEAK WIND MEASURED AT THE DETROIT LAKES AIRPORT /KDTL?. 

0959 PM     TSTM WND GST     2 N DETROIT LAKES       46.84N 95.84W 
06/24/2022  M72.00 MPH       Becker             MN   MESONET         

            PEAK WIND MEASURED AT A RAWS STATION. TIME ESTIMATED 
            BASED ON RADAR AND OTHER NEARBY WIND SENSOR REPORTS.

1001 PM     HAIL             1 S NEW YORK MILLS      46.51N 95.37W 
06/24/2022  E1.00 INCH       Otter Tail         MN   PUBLIC          

1010 PM     TSTM WND DMG     3 WNW TOAD LAKE         46.88N 95.55W 
06/24/2022                   Becker             MN   BROADCAST MEDIA 

            REPORT OF TRESS DOWN ON CAMPER TRAILERS AT LITTLE TOAD 
            LAKE. POWER LINES DOWN. TIME ESTIMATED BASED ON RADAR AND
            NEARBY WIND SENSOR REPORTS. 

1020 PM     TSTM WND GST     OSAGE                   46.92N 95.26W 
06/24/2022  M67.00 MPH       BECKER             MN   MESONET         

            PEAK WIND MESURED AT THE RWIS STATION IN OSAGE ON HIGHWAY
            34.

1026 PM     TORNADO          2 WSW MENAHGA           46.74N 95.14W 
06/24/2022                   Wadena             MN   LAW ENFORCEMENT 

            LAW ENFORCEMENT REPORTS SPOTTER NEAR SEBEKA VIEWING 
            ONGOING TORNADO. LOCATION ESTIMATED BASED ON RADAR AND 
            REPORTING. 

1037 PM     TSTM WND GST     2 SSW PARK RAPIDS       46.89N 95.08W 
06/24/2022  M61.00 MPH       Hubbard            MN   ASOS            

            PEAK WIND MEASURED AT THE PARK RAPIDS AIRPORT /KPKD/. 

1040 PM     TSTM WND DMG     4 ENE EMMAVILLE         47.09N 94.90W 
06/24/2022                   Hubbard            MN   TRAINED SPOTTER 

            POWER OUTAGE REPORTED AT CAMP WILDERNESS ON MANTRAP LAKE.


1042 PM     TSTM WND GST     2 SSW PARK RAPIDS       46.89N 95.08W 
06/24/2022  M59.00 MPH       Hubbard            MN   ASOS            

            SECOND PEAK WIND MEASURED AT THE PARK RAPIDS AIRPORT 
            /KPKD/.

1057 PM     TSTM WND GST     2 W WADENA              46.44N 95.18W 
06/24/2022  M55.00 MPH       Otter Tail         MN   AWOS            

            PEAK WIND MEASURED AT THE WADENA AIRPORT /KADC/.

1105 PM     TSTM WND GST     2 WNW VERNDALE          46.41N 95.05W 
06/24/2022  M57.00 MPH       Wadena             MN   MESONET         

            PEAK WIND MEASURED AT THE MNDOT RWIS ON HIGHWAY 10.

1140 PM     TSTM WND GST     4 W HERMAN              45.81N 96.22W 
06/24/2022  M55.00 MPH       Grant              MN   MESONET         

            PEAK WIND MEASURED AT THE MNDOT RWIS ON HWY 27.


&&

$$

GREGORY.GUST

Rain Reports

Ample moisture, lift, and instability in addition to back-building, training, and slow moving storms contributed to heavy rainfall across many locations. At times, rainfall rates were estimated to be 4 to 5 inches per hour. This lead to areas of flash flooding within the Devils Lake basin into central Red River Valley as well as within west-central Minnesota.

Heavy rain rates led to this and other road washouts in portions of eastern North Dakota.

Public Information Statement
National Weather Service Grand Forks ND
917 AM CDT Sat Jun 25 2022

...PRECIPITATION REPORTS...

Location                     Amount    Time/Date       Provider             
Ottertail MN 1.5 NNW         5.29 in   0700 AM 06/25   COCORAHS             
Richville MN 5.8 SSW         5.05 in   0701 AM 06/25   COCORAHS             
Ottertail MN                 4.88 in   0540 AM 06/25   COOP                 
Richville MN 1.2 NW          4.10 in   0700 AM 06/25   COCORAHS             
New York Mills MN            4.00 in   0820 AM 06/25   COOP                 
Clitherall MN 1.1 WSW        3.66 in   0700 AM 06/25   COCORAHS             
Battle Lake MN 2.0 S         3.50 in   0700 AM 06/25   COCORAHS             
Sebeka MN                    3.36 in   0700 AM 06/25   COOP                 
Deer Creek 0.1 WNW           3.20 in   0800 AM 06/25   COCORAHS             
Perham MN 5.7 E              3.05 in   0700 AM 06/25   COCORAHS             
Deer Creek MN 2.0 WSW        2.81 in   0700 AM 06/25   COCORAHS             
Battle Lake MN 3.3 SSE       2.66 in   0700 AM 06/25   COCORAHS             
Pelican Rapids MN 1.4 W      2.57 in   0700 AM 06/25   COCORAHS             
Sheyenne ND 2.7 WSW          2.46 in   0800 AM 06/25   COCORAHS             
Menahga 3.1 N                2.42 in   0800 AM 06/25   COCORAHS             
Staples MN 6 N               2.39 in   0800 AM 06/25   HADS                 
Pelican Rapids 4.7 ESE       2.32 in   0700 AM 06/25   COCORAHS             
Mentor MN 2 SW               2.28 in   0908 AM 06/25   CWOP                 
AGASSIZ NRW GOODRIDGE 12 NNW 2.26 in   0900 AM 06/25   HADS                 
Laporte 12.0 W               2.22 in   0700 AM 06/25   COCORAHS             
Fergus Falls MN 5.6 NNE      2.09 in   0700 AM 06/25   COCORAHS             
Menahga MN 0.7 N             2.09 in   0600 AM 06/25   COCORAHS             
Bagley MN 16.6 SSE           2.03 in   0830 AM 06/25   COCORAHS             
Euclid MN 6.2 NNE            2.00 in   0700 AM 06/25   COCORAHS             
Lake Park MN 9.9 S           1.97 in   0650 AM 06/25   COCORAHS             
Thief River Falls MN 0.3 NW  1.95 in   0700 AM 06/25   COCORAHS             
Sharon ND 7.9 ENE            1.95 in   0700 AM 06/25   COCORAHS             
Fort Totten ND 5 ENE         1.94 in   0851 AM 06/25   RAWS                 
Arygle MN 12 WNW             1.85 in   0900 AM 06/25   CWOP                 
Glacial Ridge Portable       1.82 in   0832 AM 06/25   RAWS                 
Nevis 4.1 SW                 1.80 in   0730 AM 06/25   COCORAHS             
Pelican Rapids MN 6.3 NNW    1.77 in   0559 AM 06/25   COCORAHS             
Crookston 9.9 E              1.77 in   0800 AM 06/25   COCORAHS             
Red Lake MN                  1.77 in   0709 AM 06/25   RAWS                 
Rothsay MN                   1.75 in   0730 AM 06/25   COOP                 
Callaway 7.0 E               1.71 in   0730 AM 06/25   COCORAHS             
Bemidji MN 7.8 ENE           1.71 in   0700 AM 06/25   COCORAHS             
Hoffman MN 4.0 WSW           1.70 in   0700 AM 06/25   COCORAHS             
Alvarado MN 5 NNE            1.64 in   0900 AM 06/25   AWS                  
Grygla MN 6 WNW              1.61 in   0800 AM 06/25   HADS                 
Turtle River MN 3.6 E        1.61 in   0700 AM 06/25   COCORAHS             
Osage MN 5 NW                1.61 in   0830 AM 06/25   HADS                 
Detroit Lakes 3.9 WSW        1.60 in   0700 AM 06/25   COCORAHS             
Park Rapids AP MN            1.59 in   0853 AM 06/25   ASOS                 
Bemidji MN 4 ENE             1.59 in   0910 AM 06/25   CWOP                 
Grygla MN 6 WNW              1.59 in   0830 AM 06/25   HADS                 
Rochert 6.0 N                1.57 in   0800 AM 06/25   COCORAHS             
Detroit Lakes MN 5.7 N       1.54 in   0430 AM 06/25   COCORAHS             
Kensington MN 4.1 W          1.54 in   0700 AM 06/25   COCORAHS             
Casselton ND 0.4 ENE         1.52 in   0700 AM 06/25   COCORAHS             
Lake Park MN 7.9 S           1.50 in   0800 AM 06/25   COCORAHS             
Fargo ND 3.7 SSE             1.50 in   0700 AM 06/25   COCORAHS                       

Observations are collected from a variety of sources with varying
equipment and exposures. We thank all volunteer weather observers 
for their dedication. Not all data listed are considered official.

$$

Environment

A shortwave trough ejected out of the Pacific Northwest into the Northern Plains around the northern periphery of a very large upper ridge centered over the CONUS. Strong instability, ample moisture, and strong shear ahead of this shortwave trough allowed for organized, robust convection across many locations within the Dakotas into Minnesota.

Early morning convection June 24 in west-central Minnesota resulting in very large hail and flash flooding was driven by strong warm, moist air advection on the nose of a nocturnal low level jet feeding very unstable but elevated air into a back-building cluster of storms.

Later in the day, daytime heating within a moist boundary layer contributed to strong instability across much of eastern North Dakota into western Minnesota, ahead of a stationary front draped over central North Dakota. As the shortwave trough approached, overall kinematics (wind energy) responded by increasing, and thus increasing available shear for storm organization. Robust, semi-discrete convection exhibiting supercellular characteristics initially developed along the stationary boundary from near Jamestown to Devils Lake. Upon initiation, landspout-type tornadoes formed in Cavalier County as well as Wells County in North Dakota, along with splitting supercells leading to large hail and gusty winds. However, shear vectors parallel to the front congealed storms quickly forming a quasi-linear convective system (QLCS). Training of storm cores led to very heavy rainfall rates and flash flooding within eastern North Dakota. Storms quickly developed outflow boundaries which helped start a propagation to the east. Outflow boundary interactions and attendant updrafts lead to additional tornadoes near Pekin and Larimore, North Dakota. The congealed cold pools led to damaging wind gusts up to 88 mph. These cold pools picked up dirt and dust from area fields still bare from delayed planting, resulting in what could be described as a "haboob," or a large collection of dust leading to significantly reduced visibility along the leading edge of thunderstorm outflow. As sunset approached, the QLCS moved into Minnesota while the nocturnal low level jet re-developed helping increasing low level shear. This increase in low level shear helped introduce the development of QLCS mesovortices which lead to additional line-embedded tornadoes within northwest and west-central Minnesota, including the 30 mile long tornado from Rochert to Menahga.

This severe episode overall was very dynamic and meteorologically interesting, showcasing many "unorthodox" impactful weather events.


Figure 1: 300mb	Figure 2: 500mb	Figure 3: 850mb


Figure 4: DCAPE	Figure 5: Effective Bulk Shear	Figure 6: Effective Storm Relative Helicity


Figure 7: Max Lapse Rate	Figure 8: MLCAPE	Figure 9: Significant Tornado Parameter

Media use of NWS Web News Stories is encouraged!
Please acknowledge the NWS as the source of any news information accessed from this site.