Alert archive / North Dakota / Tornado Warnings in 2018

Tornado Warning 4, NWS Grand Forks, ND

June 8, 2018Barnes County, Cass County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jun 8, 2018, 3:36 PM CDT for Barnes County, Cass County, North Dakota. It was in force for 39 min. 5 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, 3:36 PM CDT (20:36 UTC)
Expired: Jun 8, 2018, 4:15 PM CDT
In force: 39 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties Barnes County, ND, Cass County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 77 km from the middle of the area, began a volume at 20:40 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, 3:49 PM CDT	HAIL 1.75	2 Ene Tower City, ND	STRONG WINDS AND LARGE HAIL STRIPPED FIELDS AND GARDENS.
Jun 8, 4:00 PM CDT	TORNADO 0	6 Se Tower City, ND	THE TORNADO TRACKED INTERMITTENTLY FOR A MILE OR SO ACROSS CENTRAL HILL TOWNSHIP, MAINLY OVER OPENED FIELDS. IT KICKED UP CONSIDERABLE DUST ACROSS THE SOUTH FLANK OF THE STORM AS INDICATED BY SPOTTER VIDEOS. SOME LARGE BRANCHES WERE REPORTED BROKEN DOWN IN SHE
Jun 8, 4:05 PM CDT	TORNADO	6 Se Tower City, ND	CALL FROM A SPOTTER WITH A REPORT OF A TORNADO ON THE GROUND
Jun 8, 4:08 PM CDT	TSTM WND DMG	Buffalo, ND	TREES DOWN IN BUFFALO. 6 TO 10 INCHES IN DIAMETER. TIME ESTIMATED BASED ON RADAR.
Jun 8, 4:15 PM CDT	TSTM WND DMG	Buffalo, ND	TREES DOWN IN BUFFALO. 6 TO 10 INCHES IN DIAMETER.

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, 8.6 hours before the alert went out and 227 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.

865 
WFUS53 KFGF 082036
TORFGF
NDC003-017-082115-
/O.NEW.KFGF.TO.W.0004.180608T2036Z-180608T2115Z/

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

The National Weather Service in Grand Forks has issued a

* Tornado Warning for...
  Southwestern Cass County in southeastern North Dakota...
  East central Barnes County in southeastern North Dakota...

* Until 415 PM CDT.

* At 335 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Oriska, or 11 miles east of Valley City, moving
  east at 30 mph.

  HAZARD...Tornado and quarter size hail.

  SOURCE...Weather spotters reported funnel cloud.

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

* This dangerous storm will be near...
  Tower City around 345 PM CDT.
  Buffalo around 355 PM CDT.
  Alice around 400 PM CDT.
  Embden around 410 PM CDT.
  Chaffee and Wheatland around 415 PM CDT.

This includes Interstate 94 in North Dakota between mile markers 299
and 329.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 4683 9782 4691 9787 4701 9783 4698 9721
      4667 9730
TIME...MOT...LOC 2035Z 284DEG 25KT 4691 9776 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

BP

2 follow-up statements

237 
WWUS53 KFGF 082053
SVSFGF

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

NDC003-017-082115-
/O.CON.KFGF.TO.W.0004.000000T0000Z-180608T2115Z/
Cass ND-Barnes ND-
353 PM CDT FRI JUN 8 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM CDT FOR
SOUTHWESTERN CASS AND EAST CENTRAL BARNES COUNTIES...
        
At 353 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Buffalo, or 20 miles east of Valley City, moving
east at 30 mph.

HAZARD...TORNADO and golf ball size hail.

SOURCE...Weather spotters reported a funnel cloud.

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

This dangerous storm will be near...
  Buffalo around 355 PM CDT.
  Alice around 400 PM CDT.
  Embden around 410 PM CDT.
  Chaffee and Wheatland around 415 PM CDT.

This includes Interstate 94 in North Dakota between mile markers 302
and 329.
 
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 4684 9779 4693 9781 4701 9775 4698 9721
      4667 9730
TIME...MOT...LOC 2053Z 284DEG 25KT 4688 9758 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

BP

781 
WWUS53 KFGF 082107
SVSFGF

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

NDC003-082117-
/O.CAN.KFGF.TO.W.0004.000000T0000Z-180608T2115Z/
Barnes ND-
407 PM CDT FRI JUN 8 2018

...THE TORNADO WARNING FOR EAST CENTRAL BARNES COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

LAT...LON 4681 9768 4694 9768 4700 9764 4698 9721
      4667 9730
TIME...MOT...LOC 2107Z 284DEG 25KT 4686 9744 

$$

NDC017-082115-
/O.CON.KFGF.TO.W.0004.000000T0000Z-180608T2115Z/
Cass ND-
407 PM CDT FRI JUN 8 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM CDT FOR
SOUTHWESTERN CASS COUNTY...
    
At 407 PM CDT, a confirmed tornado was located near Embden, or 27
miles east of Valley City, moving east at 30 mph.

HAZARD...Damaging tornado and golf ball size hail.

SOURCE...Weather spotters confirmed tornado.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This tornado will be near...
  Chaffee and Wheatland around 415 PM CDT.

This includes Interstate 94 in North Dakota between mile markers 308
and 329.
 
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 4681 9768 4694 9768 4700 9764 4698 9721
      4667 9730
TIME...MOT...LOC 2107Z 284DEG 25KT 4686 9744 

TORNADO...OBSERVED
HAIL...1.75IN

$$

BP

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 8, 3:09 PM CDT	Tornado Warning	FGF	Barnes, Cass	36 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, 4:23 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Traill	52 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
Jun 8, 5:37 PM CDT	Tornado Warning Tornado observed	FGF	Cass, Richland	38 min
Jun 8, 6:14 PM CDT	Tornado Warning	FGF	Richland	46 min

Nearby

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.