Alert archive / Minnesota / Tornado Warnings in 2020

Tornado Warning 9, NWS Grand Forks, ND

June 8, 2020Marshall County, Pennington County, Red Lake County, Minnesota

NWS Grand Forks, ND issued this tornado warning at Jun 8, 2020, 8:20 PM CDT for Marshall County, Pennington County, Red Lake County, Minnesota. It was in force for 25 min. 1 report 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, 8:20 PM CDT (01:20 UTC)
Expired: Jun 8, 2020, 8:45 PM CDT
In force: 25 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Marshall County, MN, Pennington County, MN, Red Lake County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 111 km from the middle of the area, began a volume at 01:18 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, 8:30 PM CDT	TSTM WND DMG	2 Ene Plummer, MN	A FEW LARGE BRANCHES BROKEN DOWN IN SHELTER BELTS.

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, 1.3 hours before the alert went out and 210 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.

078 
WFUS53 KFGF 090120
TORFGF
MNC089-113-125-090145-
/O.NEW.KFGF.TO.W.0009.200609T0120Z-200609T0145Z/

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

The National Weather Service in Grand Forks has issued a

* Tornado Warning for...
  Southeastern Marshall County in northwestern Minnesota...
  Central Red Lake County in northwestern Minnesota...
  Eastern Pennington County in northwestern Minnesota...

* Until 845 PM CDT.
    
* At 820 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Plummer, or 14 miles south of Thief River Falls,
  moving northeast at 40 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

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

* This dangerous storm will be near...
  Plummer around 825 PM CDT.
  Hazel around 830 PM CDT.
  High Landing, Goodridge and Mavie around 845 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 4779 9613 4792 9631 4829 9583 4810 9560
TIME...MOT...LOC 0120Z 226DEG 38KT 4791 9614 

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

$$

VG

2 follow-up statements

925 
WWUS53 KFGF 090132
SVSFGF

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

MNC089-113-125-090145-
/O.CON.KFGF.TO.W.0009.000000T0000Z-200609T0145Z/
Marshall MN-Red Lake MN-Pennington MN-
832 PM CDT Mon Jun 8 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM CDT FOR
SOUTHEASTERN MARSHALL...NORTH CENTRAL RED LAKE AND EASTERN PENNINGTON
COUNTIES...
    
At 832 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Hazel, or 11 miles southeast of Thief River Falls,
moving northeast at 40 mph.

HAZARD...TORNADO.

SOURCE...Radar indicated rotation.

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

This dangerous storm will be near...
  High Landing and Mavie around 845 PM CDT.
  Goodridge around 850 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 4788 9598 4803 9617 4829 9583 4810 9560
TIME...MOT...LOC 0132Z 226DEG 38KT 4800 9600 

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

$$

VG

828 
WWUS53 KFGF 090144
SVSFGF

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

MNC089-113-125-090154-
/O.EXP.KFGF.TO.W.0009.000000T0000Z-200609T0145Z/
Marshall MN-Red Lake MN-Pennington MN-
844 PM CDT Mon Jun 8 2020

...THE TORNADO WARNING FOR SOUTHEASTERN MARSHALL...NORTH CENTRAL RED
LAKE AND EASTERN PENNINGTON COUNTIES WILL EXPIRE AT 845 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 4788 9598 4803 9617 4829 9583 4810 9560
TIME...MOT...LOC 0144Z 226DEG 38KT 4808 9587 

$$

VG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 8, 7:29 PM CDT	Tornado Warning Tornado observed	FGF	Marshall, Roseau	31 min
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, 8:38 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.