Alert archive / Minnesota / Tornado Warnings in 2021

Tornado Warning 2, NWS Duluth, MN

July 26, 2021Cass County, Itasca County, Minnesota

NWS Duluth, MN issued this tornado warning at Jul 26, 2021, 6:15 PM CDT for Cass County, Itasca County, Minnesota. It was in force for 30 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 26, 2021, 6:15 PM CDT (23:15 UTC)
Expired: Jul 26, 2021, 6:45 PM CDT
In force: 30 min
Issued by: NWS Duluth, MN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.75 in

Counties Cass County, MN, Itasca County, MN

What was reported inside it

Time	Report	Where	Remark
Jul 26, 6:15 PM CDT	HAIL 1.5	5 Ne Schley, MN	ESTIMATE AT LEAST PING-PONG BALL SIZE HAIL PER VIDEOS POSTED ON SNAPCHAT. TIME AND LOCATION ESTIMATED.
Jul 26, 6:34 PM CDT	HAIL 3	Bena, MN	HAIL UP TO 2.9 INCHES MEASURED NEAR BENA. PHOTO AND REPORT VIA TWITTER. TIME ESTIMATED FROM RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

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 12:00Z, 11.3 hours before the alert went out and 149 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: 2151 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 86 m²/s²
0-3 km storm-relative helicity: 234 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

018 
WFUS53 KDLH 262315
TORDLH
MNC021-061-262345-
/O.NEW.KDLH.TO.W.0002.210726T2315Z-210726T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Duluth MN
615 PM CDT Mon Jul 26 2021

The National Weather Service in Duluth MN has issued a

* Tornado Warning for...
  West central Itasca County in north central Minnesota...
  North central Cass County in north central Minnesota...

* Until 645 PM CDT.
    
* At 614 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Lake Winnibigoshish, or 26 miles northeast of
  Walker, moving southeast at 25 mph.

  HAZARD...Tornado and golf ball size hail.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur. Tree 
           damage is likely.

* This dangerous storm will be near...
  Bena around 630 PM CDT.

Other locations in the path of this tornadic thunderstorm include
Federal Dam and Leech Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4742 9442 4756 9441 4759 9435 4741 9393
      4729 9414 4720 9438 4741 9449
TIME...MOT...LOC 2314Z 321DEG 24KT 4742 9430 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

Kossen

2 follow-up statements

862 
WWUS53 KDLH 262328
SVSDLH

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

MNC021-061-262345-
/O.CON.KDLH.TO.W.0002.000000T0000Z-210726T2345Z/
Itasca MN-Cass MN-
628 PM CDT Mon Jul 26 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR WEST
CENTRAL ITASCA AND NORTH CENTRAL CASS COUNTIES...
    
At 628 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Bena, or 24 miles northeast of Walker, moving
southeast at 30 mph.

HAZARD...Tornado and golf ball size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur. Tree damage is 
         likely.

This dangerous storm will be near...
  Federal Dam around 635 PM CDT.

Other locations in the path of this tornadic thunderstorm include
Leech Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4742 9442 4748 9431 4753 9421 4741 9393
      4729 9414 4720 9438 4741 9443
TIME...MOT...LOC 2328Z 321DEG 24KT 4735 9421 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

Kossen

485 
WWUS53 KDLH 262333
SVSDLH

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

MNC021-061-262345-
/O.CON.KDLH.TO.W.0002.000000T0000Z-210726T2345Z/
Itasca MN-Cass MN-
633 PM CDT Mon Jul 26 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR WEST
CENTRAL ITASCA AND NORTH CENTRAL CASS COUNTIES...
    
At 633 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Bena, or 24 miles northeast of Walker, moving
southeast at 30 mph.

HAZARD...Tornado and golf ball size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur. Tree damage is 
         likely.

This dangerous storm will be near...
  Leech Lake around 645 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4741 9438 4747 9429 4749 9412 4741 9393
      4729 9414 4720 9438 4737 9442
TIME...MOT...LOC 2333Z 321DEG 24KT 4732 9418 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

Kossen

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 26, 5:41 PM CDT	Special Weather Statement	DLH	Koochiching	19 min
Jul 26, 5:54 PM CDT	Tornado Warning	DLH	Cass, Itasca	21 min
Jul 26, 6:00 PM CDT	Special Weather Statement	DLH	Itasca	15 min
Jul 26, 6:10 PM CDT	Special Weather Statement	DLH	Saint Louis	20 min
Jul 26, 6:14 PM CDT	Severe Thunderstorm Warning	DLH	Itasca	31 min
Jul 26, 6:26 PM CDT	Severe Thunderstorm Warning	DLH	Lake, Saint Louis	64 min
Jul 26, 6:38 PM CDT	Special Weather Statement	DLH	Hubbard	22 min
Jul 26, 6:41 PM CDT	Severe Thunderstorm Warning	DLH	Cass, Itasca	34 min
Jul 26, 6:45 PM CDT	Severe Thunderstorm Warning	DLH	Itasca	45 min
Jul 26, 6:51 PM CDT	Severe Thunderstorm Warning	DLH	Saint Louis	24 min
Jul 26, 6:59 PM CDT	Special Weather Statement	DLH	Cass	16 min

Nearby

Tornado Warnings in Minnesota, 2021 Every tornado warning in 2021 Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.