Alert archive / Minnesota / Tornado Warnings in 2018

Tornado Warning 9, NWS Grand Forks, ND

June 8, 2018Clay County, Wilkin County, Minnesota; Cass County, Richland County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jun 8, 2018, 5:37 PM CDT for Clay County, Wilkin County, Minnesota; Cass County, Richland County, North Dakota. It was in force for 38 min. 4 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, 2018, 5:37 PM CDT (22:37 UTC)
Expired: Jun 8, 2018, 6:15 PM CDT
In force: 38 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Tornado: Observed
Hail: 1.75 in

Counties Clay County, MN, Wilkin County, MN, Cass County, ND, Richland County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 107 km from the middle of the area, began a volume at 22:40 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, 5:50 PM CDT	HAIL 2	Kindred, ND	PICTURE WITH HAIL TWO QUARTERS WIDE SO 2 INCHES
Jun 8, 6:00 PM CDT	HAIL 1.5	1 Nw Walcott, ND	VERY HEAVY RAIN AND A FEW VERY LARGE HAILSTONES.
Jun 8, 6:05 PM CDT	TSTM WND DMG	Walcott, ND	NUMEROUS LARGE TREE BRANCHES WERE BROKEN DOWN AROUND TOWN.
Jun 8, 6:17 PM CDT	HAIL 1.25	Christine, ND	MOSTLY QUARTER SIZED WITH SOME LARGER HAIL STONES MIXED IN, TIME ESTIMATED VIA RADAR

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 10.6 hours before the alert went out and 221 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: 778 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: -4 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

As transmitted.

753 
WFUS53 KFGF 082237
TORFGF
MNC027-167-NDC017-077-082315-
/O.NEW.KFGF.TO.W.0009.180608T2237Z-180608T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Eastern ND/Grand Forks ND
537 PM CDT FRI JUN 8 2018

The National Weather Service in Grand Forks has issued a

* Tornado Warning for...
  Southwestern Clay County in northwestern Minnesota...
  Northwestern Wilkin County in west central Minnesota...
  Southeastern Cass County in southeastern North Dakota...
  Northeastern Richland County in southeastern North Dakota...

* Until 615 PM CDT.

* At 537 PM CDT, a confirmed tornado was located over Kindred, or 19
  miles southwest of Fargo, moving southeast at 20 mph.

  HAZARD...Tornado and golf ball size hail.

  SOURCE...Public confirmed tornado.

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

* The tornado will be near...
  Walcott around 600 PM CDT.
  Oxbow and Hickson around 605 PM CDT.
  Comstock around 610 PM CDT.
  Christine, Wolverton and Colfax around 615 PM CDT.

This includes Interstate 29 between mile markers 35 and 54.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not take shelter under highway overpasses. If you
cannot safely drive away from the tornado, as a last resort, either
park your vehicle and stay put, or abandon your vehicle and lie down
in a low lying area and protect yourself from flying debris.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Grand Forks.

&&

LAT...LON 4659 9716 4667 9714 4675 9707 4668 9643
      4636 9666
TIME...MOT...LOC 2237Z 298DEG 17KT 4664 9704 

TORNADO...OBSERVED
HAIL...1.75IN

$$

BP

1 follow-up statement

865 
WWUS53 KFGF 082255
SVSFGF

Severe Weather Statement
National Weather Service Eastern ND/Grand Forks ND
555 PM CDT FRI JUN 8 2018

MNC027-167-NDC017-077-082315-
/O.CON.KFGF.TO.W.0009.000000T0000Z-180608T2315Z/
Clay MN-Wilkin MN-Cass ND-Richland ND-
555 PM CDT FRI JUN 8 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR
SOUTHWESTERN CLAY...NORTHWESTERN WILKIN...SOUTHEASTERN CASS AND
NORTHEASTERN RICHLAND COUNTIES...
    
At 555 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Walcott, or 19 miles south of Fargo, moving
southeast at 20 mph.

HAZARD...TORNADO and two inch hail.

SOURCE...Radar indicated rotation.

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

This dangerous storm will be near...
  Hickson around 605 PM CDT.
  Comstock around 610 PM CDT.
  Christine, Wolverton and Colfax around 615 PM CDT.

This includes Interstate 29 between mile markers 35 and 54.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not take shelter under highway overpasses. If you
cannot safely drive away from the tornado, as a last resort, either
park your vehicle and stay put, or abandon your vehicle and lie down
in a low lying area and protect yourself from flying debris.

If a tornado or other severe weather is spotted, report it to the
National Weather Service or your local nearest law enforcement agency
who will send your report. This act may save lives of others in the
path of dangerous weather.

&&

LAT...LON 4655 9706 4664 9705 4673 9687 4668 9643
      4636 9666
TIME...MOT...LOC 2255Z 298DEG 17KT 4660 9693 

TORNADO...RADAR INDICATED
HAIL...2.00IN

$$

BP

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 8, 4:23 PM CDT	Severe Thunderstorm Warning	FGF	Polk	52 min
Jun 8, 4:41 PM CDT	Severe Thunderstorm Warning	FGF	Polk	64 min
Jun 8, 5:08 PM CDT	Severe Thunderstorm Warning	FGF	Norman, Polk	67 min
Jun 8, 5:20 PM CDT	Severe Thunderstorm Warning	FGF	Polk, Red Lake	41 min
Jun 8, 6:04 PM CDT	Severe Thunderstorm Warning	FGF	Norman, Polk	56 min
Jun 8, 6:14 PM CDT	Tornado Warning	FGF	Wilkin	46 min
Jun 8, 6:53 PM CDT	Severe Thunderstorm Warning	FGF	Norman	37 min
Jun 8, 3:09 PM CDT	Tornado Warning	FGF	Barnes, Cass	36 min
Jun 8, 3:36 PM CDT	Tornado Warning	FGF	Barnes, Cass	39 min
Jun 8, 4:14 PM CDT	Tornado Warning Tornado observed	FGF	Cass	46 min
Jun 8, 4:21 PM CDT	Special Weather Statement	FGF	Nelson	54 min
Jun 8, 4:24 PM CDT	Tornado Warning Tornado observed	FGF	Grand Forks, Nelson, Walsh	51 min
Jun 8, 4:54 PM CDT	Tornado Warning	FGF	Cass, Richland	51 min
Jun 8, 5:13 PM CDT	Tornado Warning Tornado observed	FGF	Grand Forks	47 min

Nearby

Tornado Warnings in Minnesota, 2018 Tornado Warnings in North Dakota, 2018 Every tornado warning in 2018 Tornadoes in 2018

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.