Alert archive / Minnesota / Tornado Warnings in 2020

Tornado Warning 22, NWS Grand Forks, ND

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

NWS Grand Forks, ND issued this tornado warning at Jul 8, 2020, 6:35 PM CDT for Otter Tail County, Wadena County, Minnesota. It was in force for 25 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 8, 2020, 6:35 PM CDT (23:35 UTC)
Expired: Jul 8, 2020, 7:00 PM CDT
In force: 25 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Tornado: Observed
Hail: 1.0 in

Counties Otter Tail County, MN, Wadena County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 207 km from the middle of the area, began a volume at 23:36 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.

Issued	Product	Office	Lasted
Jul 8, 4:15 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.6 hours before the alert went out and 208 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: 1297 J/kg
Mixed-layer CIN: -141 J/kg
Mixed-layer LCL: 1096 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 163 m²/s²
0-3 km storm-relative helicity: 291 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

336 
WFUS53 KFGF 082335
TORFGF
MNC111-159-090000-
/O.NEW.KFGF.TO.W.0022.200708T2335Z-200709T0000Z/

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

The National Weather Service in Grand Forks has issued a

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

* Until 700 PM CDT.

* At 634 PM CDT, a confirmed tornado was located near Vining, or 28
  miles east of Fergus Falls, moving northeast at 30 mph.

  HAZARD...Tornado and quarter size hail.

  SOURCE...Weather spotters confirmed tornado.

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

* The tornado will be near...
  Henning around 640 PM CDT.
  Almora around 645 PM CDT.
  Deer Creek around 655 PM CDT.
  Wrightstown around 700 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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 4637 9516 4622 9515 4619 9550 4630 9553
      4649 9512 4637 9504
TIME...MOT...LOC 2334Z 246DEG 27KT 4625 9547 

TORNADO...OBSERVED
HAIL...1.00IN

$$

NC

2 follow-up statements

984 
WWUS53 KFGF 082350
SVSFGF

Severe Weather Statement
National Weather Service Grand Forks ND
650 PM CDT Wed Jul 8 2020

MNC111-159-090000-
/O.CON.KFGF.TO.W.0022.000000T0000Z-200709T0000Z/
Wadena MN-Otter Tail MN-
650 PM CDT Wed Jul 8 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR
SOUTHWESTERN WADENA AND SOUTHEASTERN OTTER TAIL COUNTIES...
        
At 650 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Almora, or 36 miles east of Fergus Falls, moving
northeast at 30 mph.

HAZARD...TORNADO.

SOURCE...Weather spotters reported a funnel cloud.

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

This dangerous storm will be near...
  Wrightstown around 700 PM CDT.
  Wadena around 710 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 4637 9516 4622 9515 4623 9540 4635 9543
      4649 9512 4637 9504
TIME...MOT...LOC 2350Z 246DEG 27KT 4630 9531 

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

$$

NC

186 
WWUS53 KFGF 082358
SVSFGF

Severe Weather Statement
National Weather Service Grand Forks ND
658 PM CDT Wed Jul 8 2020

MNC111-159-090008-
/O.EXP.KFGF.TO.W.0022.000000T0000Z-200709T0000Z/
Wadena MN-Otter Tail MN-
658 PM CDT Wed Jul 8 2020

...THE TORNADO WARNING FOR SOUTHWESTERN WADENA AND SOUTHEASTERN OTTER
TAIL COUNTIES WILL EXPIRE AT 700 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.

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

LAT...LON 4637 9516 4622 9515 4623 9540 4635 9543
      4649 9512 4637 9504
TIME...MOT...LOC 2358Z 246DEG 27KT 4632 9525 

$$

NC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 8, 1:42 AM CDT	Special Weather Statement	FGF	Wilkin	63 min
Jul 8, 2:12 AM CDT	Severe Thunderstorm Warning	FGF	Clay, Wilkin	63 min
Jul 8, 2:18 AM CDT	Severe Thunderstorm Warning	FGF	Clay, Norman, Polk	57 min
Jul 8, 2:22 AM CDT	Severe Thunderstorm Warning	FGF	Kittson, Marshall, Polk	53 min
Jul 8, 3:10 AM CDT	Special Weather Statement	FGF	Clay	50 min
Jul 8, 3:17 AM CDT	Special Weather Statement	FGF	Clay	58 min
Jul 8, 3:22 AM CDT	Severe Thunderstorm Warning	FGF	Clay, Wilkin	38 min
Jul 8, 3:36 AM CDT	Areal Flood Advisory	FGF	Clay	8 hr
Jul 8, 3:58 AM CDT	Severe Thunderstorm Warning	FGF	Grant, Otter Tail, Wilkin	62 min
Jul 8, 4:14 AM CDT	Tornado Warning	FGF	Otter Tail, Wilkin	31 min
Jul 8, 4:43 AM CDT	Tornado Warning	FGF	Grant, Otter Tail	47 min
Jul 8, 5:00 AM CDT	Severe Thunderstorm Warning	FGF	Grant, Otter Tail, Wilkin	60 min
Jul 8, 5:20 AM CDT	Tornado Warning	FGF	Becker, Hubbard, Otter Tail, Wadena	40 min
Jul 8, 5:53 AM CDT	Severe Thunderstorm Warning	FGF	Becker, Hubbard, Otter Tail, Wadena	27 min
Jul 8, 6:19 AM CDT	Special Weather Statement	FGF	Wadena	56 min
Jul 8, 10:42 AM CDT	River Flood Warning	FGF	Clay	4 days
Jul 8, 5:00 PM CDT	Special Weather Statement	FGF	Otter Tail	45 min
Jul 8, 5:08 PM CDT	Tornado Warning	FGF	Grant, Otter Tail	52 min
Jul 8, 5:30 PM CDT	Special Weather Statement	FGF	Otter Tail	60 min
Jul 8, 6:05 PM CDT	Special Weather Statement	FGF	Otter Tail	25 min
Jul 8, 6:33 PM CDT	Special Weather Statement	FGF	Otter Tail	27 min

Nearby

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