Alert archive / Minnesota / Tornado Warnings in 2020

Tornado Warning 8, NWS Grand Forks, ND

June 8, 2020Marshall County, Roseau County, Minnesota

NWS Grand Forks, ND issued this tornado warning at Jun 8, 2020, 7:29 PM CDT for Marshall County, Roseau County, Minnesota. It was in force for 31 min. 3 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: Jun 8, 2020, 7:29 PM CDT (00:29 UTC)
Expired: Jun 8, 2020, 8:00 PM CDT
In force: 31 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Tornado: Observed
Hail: 1.0 in

Counties Marshall County, MN, Roseau County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 153 km from the middle of the area, began a volume at 00:29 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

Time	Report	Where	Remark
Jun 8, 7:29 PM CDT	FUNNEL CLOUD	6 E Middle River, MN	SPOTTER LOCATED 9E OF MIDDLE RIVER REPORTED FUNNEL CLOUD AND POSSIBLE TORNADO TO THEIR WSW, LOOKING TOWARD NEWFOLDEN.
Jun 8, 7:29 PM CDT	FUNNEL CLOUD	8 Ene Middle River, MN	8E MIDDLE RIVER LOOKING TOWARD NEWFOLDEN, REPORTS FUNNEL CLOUD
Jun 8, 7:42 PM CDT	TSTM WND DMG	4 Wnw Gatzke, MN	A COUPLE OF ASH TREES WERE SNAPPED IN A FARM YARD.

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
Jun 8, 3:00 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

International Fa, MN (KINL), launched 00:00Z, 0.5 hours before the alert went out and 192 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: 2713 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 992 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 142 m²/s²
0-3 km storm-relative helicity: 206 m²/s²
Significant tornado parameter: 3.8
Supercell composite: 18.0

Open this sounding in Storm Lab

The text

As transmitted.

231 
WFUS53 KFGF 090029
TORFGF
MNC089-135-090100-
/O.NEW.KFGF.TO.W.0008.200609T0029Z-200609T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Grand Forks ND
729 PM CDT Mon Jun 8 2020

The National Weather Service in Grand Forks has issued a

* Tornado Warning for...
  Northeastern Marshall County in northwestern Minnesota...
  South central Roseau County in northwestern Minnesota...

* Until 800 PM CDT.

* At 729 PM CDT, a confirmed tornado was located near Middle River,
  or 24 miles north of Thief River Falls, moving northeast at 40 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...
  Wannaska, Torfin and Casperson around 755 PM CDT.
  Pencer, Malung and northwestern Hayes Lake State Park around 800 
  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 4833 9604 4846 9623 4883 9574 4863 9546
TIME...MOT...LOC 0029Z 226DEG 38KT 4845 9605 

TORNADO...OBSERVED
HAIL...1.00IN

$$

VG

2 follow-up statements

400 
WWUS53 KFGF 090046
SVSFGF

Severe Weather Statement
National Weather Service Grand Forks ND
746 PM CDT Mon Jun 8 2020

MNC089-135-090100-
/O.CON.KFGF.TO.W.0008.000000T0000Z-200609T0100Z/
Marshall MN-Roseau MN-
746 PM CDT Mon Jun 8 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 800 PM CDT FOR
NORTHEASTERN MARSHALL AND SOUTH CENTRAL ROSEAU COUNTIES...
    
At 746 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Torfin, or 19 miles south of Roseau, moving
northeast at 45 mph.

HAZARD...TORNADO.

SOURCE...Radar indicated rotation.

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

This dangerous storm will be near...
  Wannaska, Torfin and Casperson around 755 PM CDT.
  Pencer, Malung and Hayes Lake State Park around 805 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 4840 9591 4855 9612 4883 9574 4863 9546
TIME...MOT...LOC 0046Z 226DEG 38KT 4858 9585 

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

$$

VG

918 
WWUS53 KFGF 090059
SVSFGF

Severe Weather Statement
National Weather Service Grand Forks ND
759 PM CDT Mon Jun 8 2020

MNC089-135-090109-
/O.EXP.KFGF.TO.W.0008.000000T0000Z-200609T0100Z/
Marshall MN-Roseau MN-
759 PM CDT Mon Jun 8 2020

...THE TORNADO WARNING FOR NORTHEASTERN MARSHALL AND SOUTH CENTRAL
ROSEAU COUNTIES WILL EXPIRE AT 800 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 1100 PM CDT for
northwestern Minnesota.

LAT...LON 4840 9591 4855 9612 4883 9574 4863 9546
TIME...MOT...LOC 0059Z 226DEG 38KT 4866 9572 

$$

VG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 8, 8:12 PM CDT	Special Weather Statement	FGF	Lake of the Woods	48 min
Jun 8, 8:17 PM CDT	Severe Thunderstorm Warning	FGF	Lake of the Woods, Roseau	43 min
Jun 8, 8:20 PM CDT	Tornado Warning	FGF	Marshall, Pennington, Red Lake	25 min
Jun 8, 8:38 PM CDT	Severe Thunderstorm Warning	FGF	Lake of the Woods	52 min
Jun 8, 9:17 PM CDT	Severe Thunderstorm Warning	FGF	Marshall, Roseau	43 min
Jun 8, 9:27 PM CDT	Severe Thunderstorm Warning	FGF	Lake of the Woods	18 min
Jun 8, 9:52 PM CDT	Severe Thunderstorm Warning	FGF	Lake of the Woods, Roseau	23 min
Jun 8, 10:58 PM CDT	Severe Thunderstorm Warning	FGF	Lake of the Woods	33 min
Jun 8, 11:06 PM CDT	Special Weather Statement	FGF	Wadena	24 min
Jun 8, 11:41 PM CDT	Special Weather Statement	FGF	Wadena	19 min
Jun 9, 12:10 AM CDT	Special Weather Statement	FGF	Otter Tail	35 min
Jun 9, 12:18 AM CDT	Severe Thunderstorm Warning	FGF	Otter Tail	42 min
Jun 9, 12:43 AM CDT	Special Weather Statement	FGF	Hubbard	62 min
Jun 9, 1:09 AM CDT	Special Weather Statement	FGF	Wilkin	66 min
Jun 9, 1:18 AM CDT	Special Weather Statement	FGF	Wadena	57 min
Jun 9, 1:21 AM CDT	Severe Thunderstorm Warning	FGF	Hubbard, Wadena	39 min
Jun 9, 1:31 AM CDT	Severe Thunderstorm Warning	FGF	Hubbard, Wadena	27 min
Jun 9, 1:52 AM CDT	Special Weather Statement	FGF	Becker	53 min
Jun 9, 2:05 AM CDT	Severe Thunderstorm Warning	FGF	Grant, Otter Tail, Wilkin	55 min
Jun 9, 2:16 AM CDT	Special Weather Statement	FGF	Grant, Otter Tail, Wilkin	59 min
Jun 9, 2:27 AM CDT	Severe Thunderstorm Warning	FGF	Grant, Otter Tail, Wilkin	48 min
Jun 9, 3:03 AM CDT	Severe Thunderstorm Warning	FGF	Becker, Otter Tail, Wadena	26 min
Jun 9, 3:27 AM CDT	Special Weather Statement	FGF	Becker, Hubbard, Wadena	48 min
Jun 9, 4:49 AM CDT	Special Weather Statement	FGF	Beltrami	56 min
Jun 9, 12:57 PM CDT	Areal Flood Warning	FGF	Kittson	21 hr

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.