Alert archive / North Dakota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 12, NWS Grand Forks, ND

June 7, 2021Barnes County, Cass County, North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 7, 2021, 8:12 PM CDT for Barnes County, Cass County, North Dakota. It was in force for 63 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 7, 2021, 8:12 PM CDT (01:12 UTC)
Expired: Jun 7, 2021, 9:15 PM CDT
In force: 63 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Barnes County, ND, Cass County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 100 km from the middle of the area, began a volume at 01:16 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 7, 8:48 PM CDT	HAIL 0.75	3 N Hastings, ND	REPORT FROM MPING: DIME (0.75 IN.).
Jun 7, 8:48 PM CDT	HAIL 1	4 N Hastings, ND
Jun 7, 8:55 PM CDT	TSTM WND GST 53	1 Nw Valley City, ND	AWOS STATION KBAC VALLEY CITY AP ND.
Jun 7, 9:00 PM CDT	TSTM WND GST 61	3 Ssw Kathryn, ND	PEAK WIND MEASURED AT A PERSONAL WEATHER STATION.
Jun 7, 9:20 PM CDT	TORNADO 0	3 N Enderlin, ND	A BRIEF TOUCHDOWN WAS NOTED AND VIDEOED. THE TORNADO LASTED LESS THAN A MINUTE AND TRACKED SLOWLY TO THE NORTHEAST FOR ABOUT A QUARTER MILE. A DUST PLUME WAS EVIDENT BUT NO DAMAGE WAS DETECTED. PEAK WINDS ESTIMATED TO 65 MILES AN HOUR. THE TORNADO ENDED BY 921

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 7, 5:45 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 1.2 hours before the alert went out and 189 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: 1478 J/kg
Mixed-layer CIN: -69 J/kg
Mixed-layer LCL: 2452 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 184 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.5

Open this sounding in Storm Lab

The text

As transmitted.

592 
WUUS53 KFGF 080112
SVRFGF
NDC003-017-080215-
/O.NEW.KFGF.SV.W.0012.210608T0112Z-210608T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Grand Forks ND
812 PM CDT Mon Jun 7 2021

The National Weather Service in Grand Forks has issued a

* Severe Thunderstorm Warning for...
  Southwestern Cass County in southeastern North Dakota...
  Barnes County in southeastern North Dakota...

* Until 915 PM CDT.

* At 811 PM CDT, a severe thunderstorm was located near Ypsilanti, or
  22 miles west of Valley City, moving northeast at 40 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* This severe thunderstorm will be near...
  Urbana around 820 PM CDT.
  Eckelson around 825 PM CDT.

Other locations in the path of this severe thunderstorm include
Sanborn, Valley City and Bald Hill Dam.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4663 9844 4698 9844 4698 9847 4706 9847
      4722 9779 4663 9754
TIME...MOT...LOC 0111Z 240DEG 33KT 4680 9844 

HAIL...1.00IN
WIND...60MPH
 
$$

jr

1 follow-up statement

098 
WWUS53 KFGF 080142
SVSFGF

Severe Weather Statement
National Weather Service Grand Forks ND
842 PM CDT Mon Jun 7 2021

NDC003-017-080215-
/O.CON.KFGF.SV.W.0012.000000T0000Z-210608T0215Z/
Cass ND-Barnes ND-
842 PM CDT Mon Jun 7 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT
FOR SOUTHWESTERN CASS AND BARNES COUNTIES...

At 841 PM CDT, a severe thunderstorm was located near Hastings, or 11
miles south of Valley City, moving northeast at 10 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
  Valley City and Oriska.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4663 9812 4683 9831 4695 9835 4710 9830
      4722 9779 4663 9754
TIME...MOT...LOC 0141Z 216DEG 10KT 4676 9805 

HAIL...1.00IN
WIND...60MPH
 
$$

jr

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 7, 8:02 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Griggs, Steele	58 min
Jun 7, 9:09 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass	66 min
Jun 7, 9:20 PM CDT	Severe Thunderstorm Warning	FGF	Ransom	23 min
Jun 7, 10:03 PM CDT	Severe Thunderstorm Warning	FGF	Cass, Richland	57 min
Jun 7, 10:08 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Ransom, Richland	67 min
Jun 7, 11:08 PM CDT	Special Weather Statement	FGF	Richland	52 min
Jun 8, 1:39 AM CDT	Severe Thunderstorm Warning	FGF	Barnes	66 min
Jun 8, 2:45 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Ransom	60 min
Jun 8, 3:42 AM CDT	Severe Thunderstorm Warning	FGF	Barnes	63 min
Jun 8, 4:12 AM CDT	Areal Flood Advisory	FGF	Barnes	9 hr
Jun 8, 4:47 AM CDT	Severe Thunderstorm Warning	FGF	Ransom	58 min
Jun 8, 5:00 AM CDT	Severe Thunderstorm Warning	FGF	Barnes	60 min
Jun 8, 5:44 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Ransom	41 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2021 Every severe thunderstorm warning in 2021

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.