Alert archive / Minnesota / Tornado Warnings in 2020

Tornado Warning 18, NWS Grand Forks, ND

July 8, 2020Otter Tail County, Wilkin County, Minnesota

NWS Grand Forks, ND issued this tornado warning at Jul 8, 2020, 4:14 AM CDT for Otter Tail County, Wilkin County, Minnesota. It was in force for 31 min. 15 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 8, 2020, 4:14 AM CDT (09:14 UTC)
Expired
Jul 8, 2020, 4:45 AM CDT
In force
31 min
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Otter Tail County, MN, Wilkin County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 162 km from the middle of the area, began a volume at 09:16 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.

What was reported inside it

TimeReportWhereRemark
Jul 8, 4:19 AM CDTTSTM WND GST 606 Sw Foxhome, MNPEAK WINDS MEASURED AT A PERSONAL WEATHER STATION LOCATED 10 ESE BRECKENRIDGE.
Jul 8, 4:19 AM CDTTSTM WND GST 606 Sw Foxhome, MNPEAK WINDS MEASURED AT A PERSONAL WEATHER STATION LOCATED 10 ESE BRECKENRIDGE.
Jul 8, 4:20 AM CDTTORNADO 12 Nnw Foxhome, MNA TORNADO WRAPPED IN DOWNBURST WINDS AND RAIN TRACKED EASTWARD WITH INTERMITTENT GROUND CONTACT FOR AT LEAST 11 MILES TO THE NORTH END OF FERGUS FALLS BY 435 AM CDT. THE TORNADO UPROOTED OR SNAPPED NUMEROUS COTTONWOOD TREES IN SHELTER BELTS ALONG ITS PATH. IT
Jul 8, 4:32 AM CDTTSTM WND DMG2 N Western, MNSEVERAL LARGE OAK TREES WERE SNAPPED ACROSS THE NORTHERN HALF OF WESTERN TOWNSHIP. A WIDE SNARL WAS EVIDENT INDICATING A WEAK EMBEDDED CIRCULATION IN AN OTHERWISE DOWNBURST PATTERN.
Jul 8, 4:33 AM CDTTSTM WND GST 62Fergus Falls, MNPEAK WIND MEASURED AT A PERSONAL WEATHER STATION.
Jul 8, 4:34 AM CDTTSTM WND DMG4 Ene Elizabeth, MNLARGE TREES BLOWN DOWN. A TREE BRANCH BROKE THROUGH THE ROOF AND CEILING OF A HOME ON JEWETT LAKE. REPORT AND PHOTO POSTED VIA SOCIAL MEDIA. TIME ESTIMATED BASED ON RADAR.
Jul 8, 4:35 AM CDTTSTM WND DMG1 N Fergus Falls, MNA WIND TURBINE BLADE WAS SHATTERED. TIME ESTIMATED BASED ON RADAR.
Jul 8, 4:35 AM CDTTSTM WND DMG4 Sw Edwards, MNPICTURE SHARED BY BROADCAST MEDIA. TREE BRANCH THROUGH ROOF AND CEILING OF HOME NEAR LAKE JEWETT. TIME ESTIMATED.
Jul 8, 4:35 AM CDTTSTM WND DMGFergus Falls, MNPICTURE SHARED BY BROADCAST MEDIA. WIND TURBINE BLADES BENT. TIME ESTIMATED.
Jul 8, 4:35 AM CDTTSTM WND GST 832 W Fergus Falls, MNPEAK WIND MEASURED AT THE FERGUS FALLS AIRPORT /KFFM/.
Jul 8, 4:35 AM CDTTSTM WND GST 832 W Fergus Falls, MNPEAK WIND MEASURED AT THE FERGUS FALLS AIRPORT /KFFM/.
Jul 8, 4:37 AM CDTFUNNEL CLOUD2 E Fergus Falls, MNFUNNEL CLOUD OBSERVED EAST OF TOWN MOVING TOWARDS UNDERWOOD.
Jul 8, 4:37 AM CDTFUNNEL CLOUD2 E Fergus Falls, MNFUNNEL CLOUD OBSERVED EAST OF TOWN MOVING TOWARDS UNDERWOOD.
Jul 8, 4:37 AM CDTFUNNEL CLOUD2 Ne Fergus Falls, MNFUNNEL CLOUD OBSERVED EAST OF TOWN MOVING TOWARDS UNDERWOOD.
Jul 8, 4:38 AM CDTTORNADO 13 Sse Edwards, MNA TORNADO WRAPPED IN DOWNBURST WINDS AND HEAVY RAIN TRACKED INTERMITTENTLY TO THE EAST-NORTHEAST FOR NEARLY 18 MILES. IT LIKELY CROSSED PICKERAL AND LONG LAKES, ENDING JUST BEFORE RUSH LAKE AROUND 4NNW OF OTTERTAIL BY 502 AM CDT. IT UPROOTED OR SNAPPED NUMEROU

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.

IssuedProductOfficeLasted
Jul 7, 11:44 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 9.2 hours before the alert went out and 227 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, Aberdeen, SD at 00:00Z on 2020-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 567 joules per kilogram.LCLLFCEL10008507005003002001001 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, Aberdeen, SD at 00:00Z on 2020-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 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
567 J/kg
Mixed-layer CIN
-367 J/kg
Mixed-layer LCL
1705 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
235 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

As transmitted.

041 
WFUS53 KFGF 080914
TORFGF
MNC111-167-080945-
/O.NEW.KFGF.TO.W.0018.200708T0914Z-200708T0945Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Grand Forks ND
414 AM CDT Wed Jul 8 2020

The National Weather Service in Grand Forks has issued a

* Tornado Warning for...
  Southwestern Otter Tail County in west central Minnesota...
  Southeastern Wilkin County in west central Minnesota...

* Until 445 AM CDT.
    
* At 413 AM CDT, a severe thunderstorm capable of producing a tornado
  was located 7 miles southwest of Rothsay, or 14 miles northeast of
  Wahpeton, moving east at 50 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Expect damage to mobile homes, roofs, and vehicles.

* This dangerous storm will be near...
  Foxhome around 415 AM CDT.
  Carlisle and Elizabeth around 425 AM CDT.
  Fergus Falls around 430 AM CDT.
  Edwards around 435 AM CDT.
  Phelps and Underwood around 445 AM CDT.

Other locations impacted by this tornadic thunderstorm include Fergus
Falls Airport.

This includes Interstate 94 in Minnesota between mile markers 40 and
69.
 
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.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 4615 9656 4646 9646 4648 9581 4612 9581
TIME...MOT...LOC 0913Z 273DEG 42KT 4638 9635 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Knutsvig
3 follow-up statements
672 
WWUS53 KFGF 080927
SVSFGF

Severe Weather Statement
National Weather Service Grand Forks ND
427 AM CDT Wed Jul 8 2020

MNC111-167-080945-
/O.CON.KFGF.TO.W.0018.000000T0000Z-200708T0945Z/
Otter Tail MN-Wilkin MN-
427 AM CDT Wed Jul 8 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 AM CDT FOR
SOUTHWESTERN OTTER TAIL AND EAST CENTRAL WILKIN COUNTIES...
    
At 427 AM CDT, a severe thunderstorm capable of producing a tornado
was located over Elizabeth, or 8 miles north of Fergus Falls, moving
east at 55 mph.

HAZARD...TORNADO.

SOURCE...Radar indicated rotation.

IMPACT...Expect damage to mobile homes, roofs, and vehicles.

This dangerous storm will be near...
  Edwards around 435 AM CDT.
  Phelps and Underwood around 440 AM CDT.

Other locations impacted by this tornadic thunderstorm include Fergus
Falls Airport.

This includes Interstate 94 in Minnesota between mile markers 41 and
69.
 
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.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 4614 9634 4646 9628 4648 9581 4612 9581
TIME...MOT...LOC 0927Z 267DEG 49KT 4639 9612 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Knutsvig
417 
WWUS53 KFGF 080933
SVSFGF

Severe Weather Statement
National Weather Service Grand Forks ND
433 AM CDT Wed Jul 8 2020

MNC167-080943-
/O.CAN.KFGF.TO.W.0018.000000T0000Z-200708T0945Z/
Wilkin MN-
433 AM CDT Wed Jul 8 2020

...THE TORNADO WARNING FOR EAST CENTRAL WILKIN 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 600 AM CDT for
west central Minnesota.

LAT...LON 4614 9625 4646 9617 4648 9581 4612 9581
TIME...MOT...LOC 0933Z 268DEG 43KT 4638 9624 

$$

MNC111-080945-
/O.CON.KFGF.TO.W.0018.000000T0000Z-200708T0945Z/
Otter Tail MN-
433 AM CDT Wed Jul 8 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 AM CDT FOR
SOUTHWESTERN OTTER TAIL COUNTY...
    
At 433 AM CDT, a severe thunderstorm capable of producing a tornado
was located over Carlisle, or 10 miles northwest of Fergus Falls,
moving east at 50 mph.

HAZARD...TORNADO.

SOURCE...Radar indicated rotation.

IMPACT...Expect damage to mobile homes, roofs, and vehicles.

This dangerous storm will be near...
  Carlisle around 435 AM CDT.
  Elizabeth around 440 AM CDT.
  Fergus Falls around 445 AM CDT.
  Edwards around 450 AM CDT.
  Phelps and Underwood around 455 AM CDT.

Other locations impacted by this tornadic thunderstorm include Fergus
Falls Airport.

This includes Interstate 94 in Minnesota between mile markers 47 and
69.
 
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.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 4614 9625 4646 9617 4648 9581 4612 9581
TIME...MOT...LOC 0933Z 268DEG 43KT 4638 9624 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Knutsvig
019 
WWUS53 KFGF 080934 CCA
SVSFGF

Severe Weather Statement
National Weather Service Grand Forks ND
434 AM CDT Wed Jul 8 2020

MNC167-080943-
/O.COR.KFGF.TO.W.0018.000000T0000Z-200708T0945Z/
Wilkin MN-
434 AM CDT Wed Jul 8 2020

...THE TORNADO WARNING FOR WILKIN 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 600 AM CDT for
west central Minnesota.

LAT...LON 4614 9625 4646 9617 4648 9581 4612 9581
TIME...MOT...LOC 0933Z 264DEG 44KT 4638 9624 

$$

MNC111-080945-
/O.COR.KFGF.TO.W.0018.000000T0000Z-200708T0945Z/
Otter Tail MN-
434 AM CDT Wed Jul 8 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 AM CDT FOR
SOUTHWESTERN OTTER TAIL COUNTY...
    
At 434 AM CDT, a severe thunderstorm capable of producing a tornado
was located near Elizabeth, or 7 miles north of Fergus Falls, moving
east at 50 mph.

HAZARD...TORNADO.

SOURCE...Radar indicated rotation.

IMPACT...Expect damage to mobile homes, roofs, and vehicles.

This dangerous storm will be near...
  Edwards around 440 AM CDT.
  Phelps and Underwood around 445 AM CDT.

Other locations impacted by this tornadic thunderstorm include Fergus
Falls Airport.

This includes Interstate 94 in Minnesota between mile markers 47 and
69.
 
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.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

&&

LAT...LON 4614 9625 4646 9617 4648 9581 4612 9581
TIME...MOT...LOC 0933Z 264DEG 44KT 4638 9624 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Knutsvig

The office that day

Everything else NWS Grand Forks, ND issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 8, 1:42 AM CDTSpecial Weather StatementFGFWilkin63 min
Jul 8, 2:12 AM CDTSevere Thunderstorm WarningFGFClay, Wilkin63 min
Jul 8, 2:18 AM CDTSevere Thunderstorm WarningFGFClay, Norman, Polk57 min
Jul 8, 2:22 AM CDTSevere Thunderstorm WarningFGFKittson, Marshall, Polk53 min
Jul 8, 3:10 AM CDTSpecial Weather StatementFGFClay50 min
Jul 8, 3:17 AM CDTSpecial Weather StatementFGFClay58 min
Jul 8, 3:22 AM CDTSevere Thunderstorm WarningFGFClay, Wilkin38 min
Jul 8, 3:36 AM CDTAreal Flood AdvisoryFGFClay8 hr
Jul 8, 3:58 AM CDTSevere Thunderstorm WarningFGFGrant, Otter Tail, Wilkin62 min
Jul 8, 4:43 AM CDTTornado WarningFGFGrant, Otter Tail47 min
Jul 8, 5:00 AM CDTSevere Thunderstorm WarningFGFGrant, Otter Tail, Wilkin60 min
Jul 8, 5:20 AM CDTTornado WarningFGFBecker, Hubbard, Otter Tail, Wadena40 min
Jul 8, 5:53 AM CDTSevere Thunderstorm WarningFGFBecker, Hubbard, Otter Tail, Wadena27 min
Jul 8, 6:19 AM CDTSpecial Weather StatementFGFWadena56 min
Jul 8, 10:42 AM CDTRiver Flood WarningFGFClay4 days
Jul 8, 5:00 PM CDTSpecial Weather StatementFGFOtter Tail45 min
Jul 8, 5:08 PM CDTTornado WarningFGFGrant, Otter Tail52 min
Jul 8, 5:30 PM CDTSpecial Weather StatementFGFOtter Tail60 min
Jul 8, 6:05 PM CDTSpecial Weather StatementFGFOtter Tail25 min
Jul 8, 6:33 PM CDTSpecial Weather StatementFGFOtter Tail27 min
Jul 8, 6:35 PM CDTTornado Warning Tornado observedFGFOtter Tail, Wadena25 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.