Alert archive / North Dakota / Tornado Warnings in 2020

Tornado Warning 6, NWS Grand Forks, ND

June 8, 2020Grand Forks County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jun 8, 2020, 5:02 PM CDT for Grand Forks County, North Dakota. It was in force for 28 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, 5:02 PM CDT (22:02 UTC)
Expired: Jun 8, 2020, 5:30 PM CDT
In force: 28 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 2.0 in

County Grand Forks County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 37 km from the middle of the area, began a volume at 22:01 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, 5:09 PM CDT	TORNADO 0	5 S Arvilla, ND	THIS TORNADO TRACKED INTERMITTENTLY TO THE NORTH- NORTHEAST FOR ABOUT 3 MILES, ENDING ABOU 2 SE OF ARVILLA AROUND 515 PM CDT. IT SNAPPED A NUMBER OF POPLAR OR COTTONWOOD TREES IN THE FEW SHELTER BELTS ALONG ITS PATH. PEAK WINDS ESTIMATED TO 80 MPH. MAXIMUM WID
Jun 8, 5:09 PM CDT	TORNADO 0	5 S Arvilla, ND	THIS TORNADO TRACKED INTERMITTENTLY TO THE NORTH- NORTHEAST FOR ABOUT 3 MILES. IT SNAPPED A NUMBER PF POPLAR OR COTTONWOOD TREES IN THE FEW SHELTER BELTS ALONG ITS PATH. PEAK WINDS ESTIMATED TO 80 MPH. MAXIMUM WIDTH TO 150 YARDS.
Jun 8, 5:24 PM CDT	HAIL 1.75	4 W Emerado, ND

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

Bismarck Municip, ND (KBIS), launched 12:00Z, 10.0 hours before the alert went out and 274 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: 169 J/kg
Mixed-layer CIN: -215 J/kg
Mixed-layer LCL: 1091 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: -16 m²/s²
0-3 km storm-relative helicity: -23 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

As transmitted.

397 
WFUS53 KFGF 082202
TORFGF
NDC035-082230-
/O.NEW.KFGF.TO.W.0006.200608T2202Z-200608T2230Z/

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

The National Weather Service in Grand Forks has issued a

* Tornado Warning for...
  Central Grand Forks County in northeastern North Dakota...

* Until 530 PM CDT.
    
* At 502 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Kempton, or 21 miles west of Grand Forks, moving
  northeast at 35 mph.

  HAZARD...Tornado and hail up to two inches in diameter.

  SOURCE...Radar indicated rotation.

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

* Locations impacted include...
  Grand Forks AFB, Emerado and Kempton. 

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 4776 9758 4783 9765 4804 9725 4789 9714
TIME...MOT...LOC 2202Z 243DEG 32KT 4784 9752 

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

$$

Lynch

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 7, 7:19 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Ramsey	30 min
Jun 7, 7:25 PM CDT	Severe Thunderstorm Warning	FGF	Eddy	35 min
Jun 7, 7:26 PM CDT	Severe Thunderstorm Warning	FGF	Pembina	64 min
Jun 7, 7:41 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Griggs, Steele	64 min
Jun 7, 7:53 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy	52 min
Jun 7, 8:00 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Ramsey	45 min
Jun 7, 8:06 PM CDT	Special Weather Statement	FGF	Ramsey	39 min
Jun 7, 8:10 PM CDT	Areal Flood Advisory	FGF	Pembina	6 hr
Jun 7, 8:12 PM CDT	Severe Thunderstorm Warning	FGF	Pembina, Walsh	48 min
Jun 7, 8:14 PM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Nelson, Ramsey	46 min
Jun 7, 8:23 PM CDT	Special Weather Statement	FGF	Pembina	67 min
Jun 7, 8:30 PM CDT	Severe Thunderstorm Warning	FGF	Nelson, Ramsey, Walsh	45 min
Jun 7, 8:31 PM CDT	Severe Thunderstorm Warning	FGF	Pembina, Walsh	44 min
Jun 7, 8:38 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Griggs, Nelson, Steele	67 min
Jun 7, 8:39 PM CDT	Severe Thunderstorm Warning	FGF	Pembina	51 min
Jun 7, 8:49 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Grand Forks, Steele, Traill	56 min
Jun 7, 8:52 PM CDT	Tornado Warning	FGF	Nelson, Ramsey, Walsh	38 min
Jun 7, 8:57 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Ransom, Traill	48 min
Jun 7, 8:58 PM CDT	Severe Thunderstorm Warning	FGF	Pembina	47 min
Jun 7, 9:11 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Ransom, Richland, Sargent	64 min
Jun 7, 9:17 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Pembina, Traill, Walsh	43 min
Jun 7, 9:23 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Grand Forks, Traill	67 min
Jun 7, 9:48 PM CDT	Severe Thunderstorm Warning	FGF	Ransom, Richland, Sargent	42 min
Jun 7, 10:04 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks	41 min
Jun 7, 10:23 PM CDT	Severe Thunderstorm Warning	FGF	Richland	39 min
Jun 7, 11:06 PM CDT	Special Weather Statement	FGF	Cass	39 min
Jun 7, 11:10 PM CDT	Special Weather Statement	FGF	Ransom	50 min
Jun 7, 11:21 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Ransom, Sargent	39 min
Jun 7, 11:48 PM CDT	Special Weather Statement	FGF	Barnes, Cass, Traill	42 min
Jun 7, 11:55 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Richland, Traill	50 min
Jun 8, 12:26 AM CDT	Special Weather Statement	FGF	Ransom	49 min
Jun 8, 1:08 AM CDT	Special Weather Statement	FGF	Barnes, Cass	52 min
Jun 8, 2:30 AM CDT	Areal Flood Advisory	FGF	Pembina	8 hr
Jun 8, 2:55 PM CDT	Special Weather Statement	FGF	Pembina, Walsh	35 min
Jun 8, 2:58 PM CDT	Severe Thunderstorm Warning	FGF	Pembina, Walsh	62 min
Jun 8, 3:06 PM CDT	Severe Thunderstorm Warning	FGF	Pembina, Walsh	54 min
Jun 8, 4:25 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Nelson, Steele	65 min
Jun 8, 4:32 PM CDT	Tornado Warning	FGF	Grand Forks, Nelson	25 min
Jun 8, 4:52 PM CDT	Special Weather Statement	FGF	Steele	38 min
Jun 8, 4:52 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Steele	53 min
Jun 8, 5:12 PM CDT	Tornado Warning	FGF	Grand Forks	18 min
Jun 8, 5:28 PM CDT	Severe Thunderstorm Warning	FGF	Grand Forks, Walsh	47 min
Jun 8, 5:42 PM CDT	Areal Flood Advisory	FGF	Steele	6 hr

Nearby

Tornado Warnings in North Dakota, 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.