Alert archive / Minnesota / Tornado Warnings in 2020

Tornado Warning 37, NWS Grand Forks, ND

August 9, 2020Lake of the Woods County, Minnesota

NWS Grand Forks, ND issued this tornado warning at Aug 9, 2020, 3:47 PM CDT for Lake of the Woods 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 9, 2020, 3:47 PM CDT (20:47 UTC)
Expired: Aug 9, 2020, 4:15 PM CDT
In force: 28 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Lake of the Woods County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 239 km from the middle of the area, began a volume at 20:48 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
Aug 9, 12:18 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 8.8 hours before the alert went out and 95 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: 2237 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 53 m²/s²
0-3 km storm-relative helicity: 97 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

268 
WFUS53 KFGF 092047
TORFGF
MNC077-092115-
/O.NEW.KFGF.TO.W.0037.200809T2047Z-200809T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Grand Forks ND
347 PM CDT Sun Aug 9 2020

The National Weather Service in Grand Forks has issued a

* Tornado Warning for...
  Southeastern Lake of the Woods County in north central Minnesota...

* Until 415 PM CDT.

* At 347 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 7 miles south of Pitt, or 51 miles east of Roseau,
  moving east at 55 mph.

  HAZARD...Tornado.

  SOURCE...Weather spotters reported funnel cloud.

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

* This dangerous storm will be near...
  Baudette around 355 PM CDT.
  Clementson around 400 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 4849 9472 4870 9483 4874 9464 4874 9462
      4872 9459 4872 9456 4870 9454 4870 9447
      4869 9445 4870 9443 4854 9443
TIME...MOT...LOC 2047Z 252DEG 49KT 4862 9469 

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

$$

TG

2 follow-up statements

978 
WWUS53 KFGF 092056
SVSFGF

Severe Weather Statement
National Weather Service Grand Forks ND
356 PM CDT Sun Aug 9 2020

MNC077-092115-
/O.CON.KFGF.TO.W.0037.000000T0000Z-200809T2115Z/
Lake of the Woods MN-
356 PM CDT Sun Aug 9 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM CDT FOR EAST
CENTRAL LAKE OF THE WOODS COUNTY...
        
At 356 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Baudette, or 56 miles east of Roseau, moving
northeast at 50 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...
  Clementson around 400 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 4854 9451 4872 9470 4874 9464 4874 9462
      4872 9459 4872 9456 4870 9454 4870 9447
      4869 9445 4870 9443 4854 9443
TIME...MOT...LOC 2056Z 246DEG 51KT 4869 9455 

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

$$

TG

311 
WWUS53 KFGF 092107
SVSFGF

Severe Weather Statement
National Weather Service Grand Forks ND
407 PM CDT Sun Aug 9 2020

MNC077-092116-
/O.EXP.KFGF.TO.W.0037.000000T0000Z-200809T2115Z/
Lake of the Woods MN-
407 PM CDT Sun Aug 9 2020

...THE TORNADO WARNING FOR EAST CENTRAL LAKE OF THE WOODS COUNTY WILL
EXPIRE AT 415 PM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 700 PM CDT for
north central Minnesota.

LAT...LON 4854 9451 4872 9470 4874 9464 4874 9462
      4872 9459 4872 9456 4870 9454 4870 9447
      4869 9445 4870 9443 4854 9443
TIME...MOT...LOC 2106Z 252DEG 49KT 4873 9436 

$$

TG

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 4:36 AM CDT	Special Weather Statement	FGF	Grant, Wilkin	54 min
Aug 9, 4:55 AM CDT	Special Weather Statement	FGF	Otter Tail	65 min
Aug 9, 5:49 AM CDT	Special Weather Statement	FGF	Becker, Wadena	56 min
Aug 9, 7:10 AM CDT	Special Weather Statement	FGF	Norman	65 min
Aug 9, 8:41 AM CDT	Special Weather Statement	FGF	Lake of the Woods	64 min
Aug 9, 12:21 PM CDT	Severe Thunderstorm Warning	FGF	Kittson, Marshall	54 min
Aug 9, 1:08 PM CDT	Severe Thunderstorm Warning	FGF	Kittson, Roseau	67 min
Aug 9, 1:39 PM CDT	Severe Thunderstorm Warning	FGF	Marshall, Polk	66 min
Aug 9, 2:01 PM CDT	Tornado Warning	FGF	Marshall, Pennington, Polk	44 min
Aug 9, 2:05 PM CDT	Severe Thunderstorm Warning	FGF	Marshall, Pennington, Polk, Red Lake	55 min
Aug 9, 2:10 PM CDT	Severe Thunderstorm Warning	FGF	Norman, Polk, Red Lake	65 min
Aug 9, 2:20 PM CDT	Tornado Warning	FGF	Beltrami, Marshall	40 min
Aug 9, 2:42 PM CDT	Tornado Warning	FGF	Beltrami, Clearwater, Marshall, Pennington, Polk, Red Lake	48 min
Aug 9, 2:49 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami, Lake of the Woods, Marshall, Roseau	56 min
Aug 9, 2:52 PM CDT	Severe Thunderstorm Warning	FGF	Clay, Norman	53 min
Aug 9, 2:57 PM CDT	Tornado Warning	FGF	Beltrami, Marshall	33 min
Aug 9, 3:06 PM CDT	Tornado Warning	FGF	Lake of the Woods, Roseau	24 min
Aug 9, 3:12 PM CDT	Severe Thunderstorm Warning	FGF	Polk, Red Lake	63 min
Aug 9, 3:18 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami, Clearwater, Lake of the Woods, Marshall, Pennington, Polk and 2 more	57 min
Aug 9, 3:20 PM CDT	Severe Thunderstorm Warning	FGF	Clay	22 min
Aug 9, 3:35 PM CDT	Tornado Warning	FGF	Clay, Norman	18 min
Aug 9, 3:41 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami, Clearwater, Hubbard, Mahnomen, Norman, Polk and 1 more	64 min
Aug 9, 3:53 PM CDT	Severe Thunderstorm Warning	FGF	Becker, Clay, Clearwater, Hubbard, Mahnomen, Norman	48 min
Aug 9, 4:38 PM CDT	Severe Thunderstorm Warning	FGF	Becker, Beltrami, Clearwater, Hubbard, Mahnomen, Norman and 1 more	52 min
Aug 9, 5:28 PM CDT	Special Weather Statement	FGF	Hubbard	32 min
Aug 9, 5:31 PM CDT	Severe Thunderstorm Warning	FGF	Hubbard	29 min
Aug 9, 5:33 PM CDT	Special Weather Statement	FGF	Clearwater	57 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.