Alert archive / Minnesota / Tornado Warnings in 2020

Tornado Warning 13, NWS Duluth, MN

August 14, 2020Aitkin County, Cass County, Crow Wing County, Minnesota

NWS Duluth, MN issued this tornado warning at Aug 14, 2020, 6:02 PM CDT for Aitkin County, Cass County, Crow Wing County, Minnesota. It was in force for 28 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
Aug 14, 2020, 6:02 PM CDT (23:02 UTC)
Expired
Aug 14, 2020, 6:30 PM CDT
In force
28 min
Issued by
NWS Duluth, MN
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties Aitkin County, MN, Cass County, MN, Crow Wing County, MN

The radar

The Duluth radar (KDLH), 117 km from the middle of the area, began a volume at 23:04 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.

The watch it was issued in

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

IssuedProductOfficeLasted
Aug 14, 5:38 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 11.0 hours before the alert went out and 188 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 2020-08-14Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, International Fa, MN at 12:00Z on 2020-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -34 square meters per square second.193958Sfc1 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
1007 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
-34 m²/s²
0-3 km storm-relative helicity
-28 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

019 
WFUS53 KDLH 142302
TORDLH
MNC001-021-035-142330-
/O.NEW.KDLH.TO.W.0013.200814T2302Z-200814T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Duluth MN
602 PM CDT Fri Aug 14 2020

The National Weather Service in Duluth MN has issued a

* Tornado Warning for...
  Northwestern Aitkin County in east central Minnesota...
  East central Cass County in north central Minnesota...
  Northeastern Crow Wing County in east central Minnesota...

* Until 630 PM CDT.
    
* At 602 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Emily, or 29 miles west of Big Sandy Lake, moving
  northeast at 40 mph.

  HAZARD...Tornado and quarter size hail.

  SOURCE...Radar indicated rotation. Trained weather spotters 
           reported rotation with the storm near Emily.

  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...
  Swatara around 625 PM CDT.
  Hill City around 630 PM CDT.

Other locations impacted by this tornadic thunderstorm include Little
Pine, Haypoint, Lake Roosevelt and White Elk 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 4703 9369 4703 9366 4689 9344 4668 9393
      4677 9403
TIME...MOT...LOC 2302Z 226DEG 36KT 4676 9391 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

Huyck
3 follow-up statements
558 
WWUS53 KDLH 142308
SVSDLH

Severe Weather Statement
National Weather Service Duluth MN
608 PM CDT Fri Aug 14 2020

MNC001-021-035-142330-
/O.CON.KDLH.TO.W.0013.000000T0000Z-200814T2330Z/
Aitkin MN-Cass MN-Crow Wing MN-
608 PM CDT Fri Aug 14 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR
NORTHWESTERN AITKIN...EAST CENTRAL CASS AND NORTHEASTERN CROW WING
COUNTIES...
    
At 608 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Outing, or 26 miles west of Big Sandy Lake, moving
northeast at 40 mph.

HAZARD...Tornado and quarter 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...
  Swatara around 625 PM CDT.
  Hill City around 630 PM CDT.

Other locations impacted by this tornadic thunderstorm include White
Elk Lake and Haypoint.

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 4673 9384 4681 9392 4700 9373 4703 9369
      4703 9366 4690 9346
TIME...MOT...LOC 2308Z 227DEG 35KT 4680 9385 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

Huyck
188 
WWUS53 KDLH 142316
SVSDLH

Severe Weather Statement
National Weather Service Duluth MN
616 PM CDT Fri Aug 14 2020

MNC035-142326-
/O.CAN.KDLH.TO.W.0013.000000T0000Z-200814T2330Z/
Crow Wing MN-
616 PM CDT Fri Aug 14 2020

...THE TORNADO WARNING FOR NORTHEASTERN CROW WING COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

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

LAT...LON 4701 9363 4691 9347 4689 9348 4686 9354
      4679 9377 4680 9378 4680 9383 4684 9387
TIME...MOT...LOC 2316Z 236DEG 33KT 4683 9379 

$$

MNC001-021-142330-
/O.CON.KDLH.TO.W.0013.000000T0000Z-200814T2330Z/
Aitkin MN-Cass MN-
616 PM CDT Fri Aug 14 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR
NORTHWESTERN AITKIN AND EAST CENTRAL CASS COUNTIES...
    
At 616 PM CDT, a severe thunderstorm capable of producing a tornado
was located 7 miles southwest of Swatara, or 24 miles west of Big
Sandy Lake, moving northeast at 40 mph.

HAZARD...Tornado and quarter 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...
  Swatara around 625 PM CDT.
  Hill City around 635 PM CDT.

Other locations impacted by this tornadic thunderstorm include White
Elk Lake and Haypoint.

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 4701 9363 4691 9347 4689 9348 4686 9354
      4679 9377 4680 9378 4680 9383 4684 9387
TIME...MOT...LOC 2316Z 236DEG 33KT 4683 9379 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

Huyck
481 
WWUS53 KDLH 142321
SVSDLH

Severe Weather Statement
National Weather Service Duluth MN
621 PM CDT Fri Aug 14 2020

MNC021-142331-
/O.CAN.KDLH.TO.W.0013.000000T0000Z-200814T2330Z/
Cass MN-
621 PM CDT Fri Aug 14 2020

...THE TORNADO WARNING FOR EAST CENTRAL CASS COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

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

LAT...LON 4684 9377 4689 9377 4701 9363 4692 9350
      4680 9376 4683 9379
TIME...MOT...LOC 2321Z 225DEG 35KT 4685 9375 

$$

MNC001-142330-
/O.CON.KDLH.TO.W.0013.000000T0000Z-200814T2330Z/
Aitkin MN-
621 PM CDT Fri Aug 14 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR
NORTHWESTERN AITKIN COUNTY...
    
At 621 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Swatara, or 22 miles west of Big Sandy Lake, moving
northeast at 40 mph.

HAZARD...Tornado and quarter 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...
  Swatara around 630 PM CDT.
  Hill City around 635 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Haypoint.

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 4684 9377 4689 9377 4701 9363 4692 9350
      4680 9376 4683 9379
TIME...MOT...LOC 2321Z 225DEG 35KT 4685 9375 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

Huyck

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 13, 9:42 PM CDTSpecial Weather StatementDLHKoochiching18 min
Aug 13, 10:06 PM CDTSpecial Weather StatementDLHKoochiching24 min
Aug 13, 10:23 PM CDTSpecial Weather StatementDLHKoochiching7 min
Aug 13, 10:47 PM CDTSevere Thunderstorm WarningDLHItasca, Koochiching53 min
Aug 13, 11:48 PM CDTSevere Thunderstorm WarningDLHCass, Itasca57 min
Aug 14, 12:30 AM CDTSpecial Weather StatementDLHItasca30 min
Aug 14, 12:37 AM CDTSpecial Weather StatementDLH23 min
Aug 14, 12:45 AM CDTSpecial Weather StatementDLHKoochiching30 min
Aug 14, 12:54 AM CDTSpecial Weather StatementDLH51 min
Aug 14, 1:00 AM CDTSpecial Weather StatementDLHItasca30 min
Aug 14, 1:02 AM CDTAreal Flood AdvisoryDLHItasca, Koochiching3 hr
Aug 14, 1:11 AM CDTSevere Thunderstorm WarningDLHCass, Crow Wing64 min
Aug 14, 1:18 AM CDTSpecial Weather StatementDLH42 min
Aug 14, 1:32 AM CDTSpecial Weather StatementDLHSaint Louis43 min
Aug 14, 1:55 AM CDTSpecial Weather StatementDLHSaint Louis50 min
Aug 14, 2:09 AM CDTSpecial Weather StatementDLHSaint Louis36 min
Aug 14, 2:13 AM CDTSpecial Weather StatementDLHAitkin, Crow Wing47 min
Aug 14, 2:42 AM CDTSpecial Weather StatementDLHSaint Louis48 min
Aug 14, 2:48 AM CDTSpecial Weather StatementDLHAitkin, Carlton42 min
Aug 14, 3:25 AM CDTSpecial Weather StatementDLHPine50 min
Aug 14, 3:28 AM CDTSpecial Weather StatementDLHLake47 min
Aug 14, 3:42 AM CDTSpecial Marine WarningDLH63 min
Aug 14, 4:14 AM CDTSpecial Weather StatementDLHLake46 min
Aug 14, 4:56 AM CDTSpecial Weather StatementDLHCook34 min
Aug 14, 5:02 AM CDTSpecial Weather StatementDLHMorrison28 min
Aug 14, 5:32 AM CDTSpecial Weather StatementDLHCrow Wing28 min
Aug 14, 5:34 AM CDTSpecial Weather StatementDLHCook26 min
Aug 14, 6:16 AM CDTSpecial Weather StatementDLHAitkin29 min
Aug 14, 6:53 AM CDTAreal Flood AdvisoryDLHCass, Crow Wing3 hr
Aug 14, 6:56 AM CDTSpecial Weather StatementDLHAitkin34 min
Aug 14, 7:33 AM CDTSpecial Weather StatementDLHCarlton27 min
Aug 14, 11:38 AM CDTSpecial Weather StatementDLHCass, Itasca52 min
Aug 14, 12:28 PM CDTSpecial Weather StatementDLHCrow Wing62 min
Aug 14, 2:44 PM CDTFlash Flood WatchDLHCass, Crow Wing5 hr
Aug 14, 3:14 PM CDTAreal Flood WarningDLHCass, Crow Wing3 hr
Aug 14, 3:48 PM CDTAreal Flood WarningDLHCass3 hr
Aug 14, 5:15 PM CDTSpecial Weather StatementDLHKoochiching30 min
Aug 14, 5:20 PM CDTSpecial Weather StatementDLHCrow Wing25 min
Aug 14, 5:21 PM CDTSpecial Weather StatementDLHCrow Wing24 min
Aug 14, 5:29 PM CDTSevere Thunderstorm WarningDLHAitkin, Cass, Crow Wing23 min
Aug 14, 5:52 PM CDTSpecial Weather StatementDLHItasca, Koochiching53 min
Aug 14, 5:59 PM CDTSevere Thunderstorm WarningDLHAitkin, Crow Wing31 min
Aug 14, 6:00 PM CDTSpecial Weather StatementDLHItasca30 min
Aug 14, 6:13 PM CDTSevere Thunderstorm WarningDLHItasca47 min
Aug 14, 6:26 PM CDTTornado WarningDLHAitkin, Itasca34 min
Aug 14, 6:30 PM CDTSevere Thunderstorm WarningDLHAitkin, Carlton, Pine30 min
Aug 14, 6:47 PM CDTFlash Flood WarningDLHItasca115 min
Aug 14, 6:49 PM CDTSevere Thunderstorm WarningDLHItasca, Saint Louis41 min
Aug 14, 6:49 PM CDTTornado WarningDLHAitkin26 min
Aug 14, 6:54 PM CDTTornado WarningDLHAitkin, Itasca36 min
Aug 14, 6:59 PM CDTTornado WarningDLHAitkin, Carlton31 min

Nearby

Tornado Warnings in Minnesota, 2020Every tornado warning in 2020Tornadoes in 2020

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.