Alert archive / Minnesota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 37, NWS Duluth, MN

July 26, 20214 counties in Minnesota

NWS Duluth, MN issued this severe thunderstorm warning at Jul 26, 2021, 7:53 PM CDT for 4 counties in Minnesota. It was in force for 52 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: Jul 26, 2021, 7:53 PM CDT (00:53 UTC)
Expired: Jul 26, 2021, 8:45 PM CDT
In force: 52 min
Issued by: NWS Duluth, MN
Area: Storm-based polygon
Hail: 2.0 in
Wind: 80.0 mph

Counties Aitkin County, MN, Carlton County, MN, Pine County, MN, Saint Louis County, MN

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.

Issued	Product	Office	Lasted
Jul 26, 5:22 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

International Fa, MN (KINL), launched 00:00Z, 0.9 hours before the alert went out and 206 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2004 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 108 m²/s²
0-3 km storm-relative helicity: 306 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

686 
WUUS53 KDLH 270053
SVRDLH
MNC001-017-115-137-270145-
/O.NEW.KDLH.SV.W.0037.210727T0053Z-210727T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
Severe Thunderstorm Warning
National Weather Service Duluth MN
753 PM CDT Mon Jul 26 2021

The National Weather Service in Duluth MN has issued a

* Severe Thunderstorm Warning for...
  Eastern Aitkin County in east central Minnesota...
  Northwestern Pine County in east central Minnesota...
  Southwestern St. Louis County in northeastern Minnesota...
  Carlton County in northeastern Minnesota...

* Until 845 PM CDT.

* At 752 PM CDT, severe thunderstorms were located along a line
  extending from near Floodwood, to 9 miles northeast of Big Sandy
  Lake, to Libby, moving southeast at 45 mph.

  These are very dangerous storms.

  HAZARD...80 mph wind gusts and two inch hail.

  SOURCE...Radar indicated.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be heavily damaged. Expect 
           considerable damage to roofs, windows, and vehicles. 
           Extensive tree damage and power outages are likely.

* Severe thunderstorms will be near...
  McGregor and Tamarack around 810 PM CDT.

Other locations in the path of these severe thunderstorms include
Cromwell, Kettle River, Moose Lake, Mahtowa, Barnum, Willow River and
Nemadji. 

This warning replaces earlier warnings for this storm.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4694 9342 4703 9332 4703 9306 4657 9246
      4632 9266 4626 9319
TIME...MOT...LOC 0052Z 328DEG 37KT 4694 9300 4681 9311 4679 9334 

HAIL...2.00IN
WIND...80MPH
 
$$

Kossen

4 follow-up statements

957 
WWUS53 KDLH 270107
SVSDLH

Severe Weather Statement
National Weather Service Duluth MN
807 PM CDT Mon Jul 26 2021

MNC001-017-115-137-270145-
/O.CON.KDLH.SV.W.0037.000000T0000Z-210727T0145Z/
Aitkin MN-Pine MN-St. Louis MN-Carlton MN-
807 PM CDT Mon Jul 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR EASTERN AITKIN...NORTHWESTERN PINE...SOUTHWESTERN ST. LOUIS AND
CARLTON COUNTIES...

At 807 PM CDT, severe thunderstorms were located along a line
extending from 7 miles south of Floodwood, to 6 miles west of
Cromwell, to near Tamarack, moving southeast at 45 mph.

HAZARD...70 mph wind gusts and ping pong ball size hail.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect 
         considerable tree damage. Wind damage is also likely to 
         mobile homes, roofs, and outbuildings.

Locations impacted include...
  Cromwell, Kettle River, Moose Lake, Mahtowa, Barnum, Nemadji and 
  Willow River.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4689 9329 4698 9311 4692 9292 4657 9246
      4632 9266 4626 9319
TIME...MOT...LOC 0107Z 328DEG 37KT 4682 9289 4669 9300 4667 9323 

HAIL...1.50IN
WIND...70MPH
 
$$

Kossen

969 
WWUS53 KDLH 270117
SVSDLH

Severe Weather Statement
National Weather Service Duluth MN
817 PM CDT Mon Jul 26 2021

MNC001-017-115-137-270145-
/O.CON.KDLH.SV.W.0037.000000T0000Z-210727T0145Z/
Aitkin MN-Pine MN-St. Louis MN-Carlton MN-
817 PM CDT Mon Jul 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR EAST CENTRAL AITKIN...NORTHWESTERN PINE...SOUTHWESTERN ST. LOUIS
AND CARLTON COUNTIES...

At 817 PM CDT, severe thunderstorms were located along a line
extending from 10 miles west of Fond Du Lac Reservation, to near
Cromwell, to near Tamarack, moving southeast at 45 mph.

HAZARD...70 mph wind gusts and ping pong ball size hail.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect 
         considerable tree damage. Wind damage is also likely to 
         mobile homes, roofs, and outbuildings.

Locations impacted include...
Mahtowa, Barnum, Willow River, Cromwell, Kettle River, Tamarack,
Nemadji, Fond Du Lac Reservation, Sturgeon Lake, Automba, Wright,
Denham, Arthyde, Moose Lake State Park, Sawyer, Ronald, and Kettle
Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4674 9314 4687 9304 4685 9283 4657 9246
      4632 9266 4627 9313
TIME...MOT...LOC 0117Z 328DEG 37KT 4675 9283 4662 9294 4660 9317 

HAIL...1.50IN
WIND...70MPH
 
$$

Kossen

225 
WWUS53 KDLH 270128
SVSDLH

Severe Weather Statement
National Weather Service Duluth MN
828 PM CDT Mon Jul 26 2021

MNC001-137-270137-
/O.CAN.KDLH.SV.W.0037.000000T0000Z-210727T0145Z/
Aitkin MN-St. Louis MN-
828 PM CDT Mon Jul 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL AITKIN AND
SOUTHWESTERN ST. LOUIS COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until midnight CDT for
northeastern and east central Minnesota.

LAT...LON 4661 9303 4673 9294 4675 9271 4657 9246
      4632 9266 4628 9305
TIME...MOT...LOC 0127Z 328DEG 37KT 4667 9276 4654 9287 4652 9310 

$$

MNC017-115-270145-
/O.CON.KDLH.SV.W.0037.000000T0000Z-210727T0145Z/
Pine MN-Carlton MN-
828 PM CDT Mon Jul 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR NORTHWESTERN PINE AND WESTERN CARLTON COUNTIES...

At 827 PM CDT, severe thunderstorms were located along a line
extending from near Cromwell, to near Kettle River, to 9 miles south
of Tamarack, moving southeast at 45 mph.

HAZARD...70 mph wind gusts and ping pong ball size hail.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect 
         considerable tree damage. Wind damage is also likely to 
         mobile homes, roofs, and outbuildings.

Locations impacted include...
Mahtowa, Barnum, Willow River, Cromwell, Kettle River, Nemadji, Fond
Du Lac Reservation, Sturgeon Lake, Automba, Denham, Moose Lake State
Park, Sawyer, and Kettle Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4661 9303 4673 9294 4675 9271 4657 9246
      4632 9266 4628 9305
TIME...MOT...LOC 0127Z 328DEG 37KT 4667 9276 4654 9287 4652 9310 

HAIL...1.50IN
WIND...70MPH
 
$$

Kossen

355 
WWUS53 KDLH 270143
SVSDLH

Severe Weather Statement
National Weather Service Duluth MN
843 PM CDT Mon Jul 26 2021

MNC017-115-270152-
/O.EXP.KDLH.SV.W.0037.000000T0000Z-210727T0145Z/
Pine MN-Carlton MN-
843 PM CDT Mon Jul 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN PINE AND WESTERN
CARLTON COUNTIES WILL EXPIRE AT 845 PM CDT...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However small hail
and gusty winds are still possible with these thunderstorms.

A Severe Thunderstorm Watch remains in effect until midnight CDT for
northeastern and east central Minnesota.

LAT...LON 4661 9303 4673 9294 4675 9271 4657 9246
      4632 9266 4628 9305
TIME...MOT...LOC 0142Z 328DEG 37KT 4655 9265 4642 9276 4640 9299 

$$

BJH

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 Duluth, MN wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 26, 6:54 PM CDT, 59 minutes earlier.

Area forecast discussion, Jul 26, 6:54 PM CDT, 59 minutes before

Area Forecast Discussion
National Weather Service Duluth MN
654 PM CDT Mon Jul 26 2021

.DISCUSSION...(This evening through Sunday)
Issued at 426 PM CDT Mon Jul 26 2021

Summary...The main concern this forecast is this evening's
convection with the Enhanced risk of severe storms we have. After
that, we have warm weather continuing with chance for more showers
and thunderstorms on Wednesday, and again on Friday.

The convection this evening is an unusual Enhanced risk for this
area, which we do not typically see more than a couple of days a
summer around here. There is a low pressure system over central
North Dakota this afternoon, with a warm front draped east into
our area, generally from the Brainerd Lakes region east into
northwest Wisconsin. Along and south of this boundary the airmass
is strongly unstable, with surface based CAPE values already over
2k j/Kg, with models indicating it may get up over 3k j/Kg at some
point this evening. Sounding from this morning show an Elevated
Mixed Layer that should be over our area this evening that is also
showing as a drier area on satellite imagery. This EML will
produce steep lapse rates in the mid levels, even as it also
produces the capping that we are seeing at the lower levels this
afternoon. Model soundings show that we should have a long
hodograph this evening with moderate to strong winds aloft to help
lengthen it, despite the weaker winds in the boundary layer. This
all shows that if we can get convection to fire, severe storms
are likely, with very large hail and strong winds, as already
depicted in the SPC day one severe outlook. We may have a very
weak shortwave moving along the North Dakota/Manitoba line this
afternoon which has been generating an area of accas and -tsra
over northwest Minnesota this afternoon. This is likely based in
the 700-600mb Warm air advection region, and we do not expect this
area to grow significantly or become rooted in the surface based
instability, at least in part due to its position relative to the
surface boundary. However, ahead of the surface low over eastern
North Dakota we have some decent pressure falls over northwest
Minnesota and would expect some new development in this area
sometime in the next few hours. Models have been wildly
inconsistent in depicting this event, with the NAMNest and FV3SAR
showing development over NW MN and eastern ND by 01Z, then
sliding southeast across the forecast area, but the HRRR not
developing anything until after 03Z, and with much less coverage
than either of the other models. Uncertainty in timing and
evolution is still pretty high, even as of late afternoon.
Unfortunately, we are in the wait and see mode, and we will have
to see how things evolve this evening. There may be some lingering
showers into early Tuesday morning, but otherwise expect the bulk
of the convection to be out of the forecast area shortly after
midnight.

Tuesday should be relatively quiet with the boundary having
shifted south of the forecast area and weak ridging over the area.
Highs to get back into the 80s for the day, though slightly
cooler than today.

We have another chance for showers and thunderstorms on
Wednesday, and while we have a small threat for severe weather, am
not as concerned about it as I am for this evening. Should it
shift a little later in the day and allow instability to build
before the convection moves into the area, that would be a
different story. Highs to creep back up into the low 90s for the
Brainerd Lakes region.

After another quiet day on Thursday, another shortwave should
bring another chance for showers and thunderstorms Friday night
and early Saturday, but it is too soon to determine the severe
weather potential with this. This should usher in a bubble of
cooler temperatures aloft with cooler high temperatures through
the weekend, with highs back in the 70s to low 80s for both days.

&&

.AVIATION...(For the 00Z TAFS through 00Z Tuesday evening)
Issued at 653 PM CDT Mon Jul 26 2021

Line of thunderstorms will affect all terminals, except INL,
through the evening. Isold MVFR with the storms, but VFR
elsewhere. Strong gusty winds in the vicinity of the storms, along
with the potential for hail and heavy rain. Will see the storms
diminish/move out of the area through the overnight. Some patchy
BR is also possible with MVFR vsbys after the storms.

&&

.MARINE...
Issued at 426 PM CDT Mon Jul 26 2021

Thunderstorm development this evening is also expected to affect
western Lake Superior, and may bring damaging winds and large
hail, especially right after it moves off land areas. There may
also be a period of increased winds in the hours after any
convection moves through the area, and we may need a short term
Small Craft Advisory for a few hours overnight. After tonight wind
stay out of the northeast for Tuesday at 10 to 15 knots, then
diminish Tuesday night and become westerly for Wednesday. Waves to
generally stay less than 2 ft.

&&

.PRELIMINARY POINT TEMPS/POPS...
DLH  61  78  60  82 /  70   0  40  60
INL  56  85  62  85 /  20  10  60  70
BRD  63  86  66  92 /  60  10  30  50
HYR  61  84  61  86 /  60   0  30  60
ASX  61  79  59  87 /  80  10  40  60

&&

.DLH WATCHES/WARNINGS/ADVISORIES...
WI...None.
MN...None.
LS...None.
&&

DISCUSSION...LE
AVIATION...GSF
MARINE...LE

Hazardous weather outlook, Jul 26, 4:01 PM CDT, 3 hours 52 minutes before

Hazardous Weather Outlook
National Weather Service Duluth MN
401 PM CDT Mon Jul 26 2021

MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-272115-
Koochiching-North St. Louis-Northern Cook/Northern Lake-
North Itasca-Central St. Louis-Southern Lake/North Shore-
Southern Cook/North Shore-North Cass-South Itasca-South Cass-
Crow Wing-Northern Aitkin-South Aitkin-Carlton/South St. Louis-
Pine-Douglas-Bayfield-Ashland-Iron-Burnett-Washburn-Sawyer-Price-
401 PM CDT Mon Jul 26 2021

This Hazardous Weather Outlook is for portions of northeast
Minnesota and northwest Wisconsin.

.DAY ONE...This afternoon and Tonight

Strong to severe thunderstorms are likely this evening and tonight.
Storms may develop any time this afternoon, but are most likely to
develop this evening around 7 to 8 PM in northeastern Minnesota,
then spreading into northwest Wisconsin around 10 to 11 PM. The
primary threat with these storms is large hail up to baseball
size. Gusty winds to 70 mph, isolated tornadoes, and torrential
rainfall that may lead to localized flash flooding are also
possible. Later tonight the risk of large hail and tornadoes will
decrease and the potential for heavy rain and damaging winds will
become the main threats.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

A strong thunderstorm or two may be ongoing early Tuesday
morning. The chance of thunderstorms returns late Tuesday night
and continues through Wednesday night. A few storms may be strong
to severe mainly along and south of US Highway 2 in Minnesota and
Wisconsin. Large hail and damaging winds are the main threats with
the strongest storms.

There is a slight chance of isolated thunderstorms Friday
afternoon and evening over portions of northern Minnesota, and
Saturday afternoon and evening over portions of northwest
Wisconsin.

.SPOTTER INFORMATION STATEMENT...

SKYWARN spotters are encouraged to report hail of any size, wind
damage, and rainfall amounts to the National Weather Service.

LSZ121-140>148-150-272115-
Bayfield to Oak Point WI-Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN-
Duluth MN to Port Wing WI-Port Wing to Sand Island WI-
Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI-
Outer Apostle Islands Beyond 5 NM from Mainland-
401 PM CDT Mon Jul 26 2021

This Hazardous Weather Outlook is for portions of Lake Superior
and the Nearshore waters of western Lake Superior.

.DAY ONE...This afternoon and Tonight

Thunderstorms are likely this evening and overnight, and some may
be strong to severe with hail to baseball ball size, wind gusts
to 60 knots, frequent cloud- to- water lightning, and torrential
rainfall which may reduce visibility to less than one- quarter
mile.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

There is another chance of thunderstorms Wednesday and Wednesday
night. A few storms may be strong to severe once again.

JDS

More information may be obtained at the following web address:
http://www.weather.gov/duluth (all lower case)

In the hours before

Local storm report, Jul 26, 7:24 PM CDT, 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
724 PM CDT MON JUL 26 2021

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

0655 PM     TSTM WND DMG     COHASSET                47.26N 93.63W
07/26/2021                   ITASCA             MN   PUBLIC

            LARGE PINE TREE UPROOTED. REPORT VIA SOCIAL
            MEDIA. TIME ESTIMATED FROM RADAR.

&&

JJM

Local storm report, Jul 26, 7:27 PM CDT, 26 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
727 PM CDT MON JUL 26 2021

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

0712 PM     TSTM WND GST     1 SSE GRAND RAPIDS      47.22N 93.52W
07/26/2021  M54 MPH          ITASCA             MN   AWOS

            AWOS STATION KGPZ GRAND RAPIDS AIRPORT.

&&

JJM

Local storm report, Jul 26, 7:30 PM CDT, 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
730 PM CDT MON JUL 26 2021

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

0728 PM     TSTM WND DMG     GRAND RAPIDS            47.23N 93.52W
07/26/2021                   ITASCA             MN   TRAINED SPOTTER

            LOCATION APPROXIMATE. MARBLE SIZE HAIL,
            APPROXIMATELY 9 80 FOOT TALL NORWAY PINE
            TREES UPROOTED.

&&

JDS

Local storm report, Jul 26, 7:44 PM CDT, 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
744 PM CDT MON JUL 26 2021

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

0615 PM     HAIL             5 NE SCHLEY             47.41N 94.34W
07/26/2021  E1.50 INCH       CASS               MN   PUBLIC

            ESTIMATE AT LEAST PING-PONG BALL SIZE HAIL
            PER VIDEOS POSTED ON SNAPCHAT. TIME AND
            LOCATION ESTIMATED.

&&

JJM

Special weather statement, Jul 26, 7:47 PM CDT, 6 minutes before

Special Weather Statement
National Weather Service Duluth MN
747 PM CDT Mon Jul 26 2021

MNZ018-026-270115-
North Itasca-South Itasca-
747 PM CDT Mon Jul 26 2021

...A STRONG THUNDERSTORM WILL AFFECT CENTRAL ITASCA COUNTY...

At 747 PM CDT, a strong thunderstorm was near Marcell, or 28 miles
northwest of Grand Rapids, moving east at 35 mph.

Wind gusts up to 45 mph and half inch diameter hail can be expected
with this storm.

This storm will be near...
  Marcell around 755 PM CDT.

Other locations impacted by this storm include Jessie Lake, North
Star Lake, Talmoon, Wabana Lake, Spider Lake, Bowstring, Gunn Lake,
Balsam Lake, Bowstring Lake and Scenic State Park.

Seek shelter inside a sturdy building and away from windows until
this storm passes. Get off area lakes and seek shelter on shore in a
sturdy shelter or a hard topped vehicle.

LAT...LON 4755 9392 4772 9382 4767 9333 4751 9336
      4737 9352
TIME...MOT...LOC 0047Z 290DEG 31KT 4761 9377

Kossen

Local storm report, Jul 26, 7:51 PM CDT, 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
751 PM CDT MON JUL 26 2021

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

0751 PM     HAIL             2 ENE CULVER            46.94N 92.52W
07/26/2021  M0.75 INCH       ST. LOUIS          MN   TRAINED SPOTTER

            PENNY SIZE HAIL AND GUSTY WINDS BUT NO
            DAMAGE ASIDE FROM SOME LEAVES BLOWN OFF
            TREES.

&&

JDS

The office that day

Everything else NWS Duluth, MN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 26, 7:13 PM CDT	Severe Thunderstorm Warning	DLH	Aitkin, Itasca, Saint Louis	47 min
Jul 26, 7:14 PM CDT	Severe Thunderstorm Warning	DLH	Aitkin, Cass, Itasca	16 min
Jul 26, 7:18 PM CDT	Special Weather Statement	DLH	Carlton	27 min
Jul 26, 7:29 PM CDT	Severe Thunderstorm Warning	DLH	Aitkin, Itasca	31 min
Jul 26, 7:30 PM CDT	Severe Thunderstorm Warning	DLH	Carlton, Saint Louis	60 min
Jul 26, 7:34 PM CDT	Special Marine Warning	DLH		56 min
Jul 26, 7:47 PM CDT	Special Weather Statement	DLH	Itasca	28 min
Jul 26, 8:11 PM CDT	Special Weather Statement	DLH	Itasca	34 min
Jul 26, 8:26 PM CDT	Special Marine Warning	DLH		49 min
Jul 26, 8:41 PM CDT	Special Weather Statement	DLH	Itasca	34 min
Jul 26, 8:49 PM CDT	Severe Thunderstorm Warning	DLH	Itasca, Saint Louis	26 min
Jul 26, 9:02 PM CDT	Severe Thunderstorm Warning	DLH	Itasca, Saint Louis	27 min
Jul 26, 9:14 PM CDT	Severe Thunderstorm Warning	DLH	Cass, Itasca	31 min
Jul 26, 11:38 PM CDT	Special Marine Warning	DLH		35 min
Jul 27, 3:45 AM CDT	Special Weather Statement	DLH	Aitkin	15 min
Jul 27, 3:59 AM CDT	Special Weather Statement	DLH	Aitkin	16 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2021 Every severe thunderstorm warning in 2021

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.