Alert archive / North Dakota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 16, NWS Grand Forks, ND

June 7, 20214 counties in North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 7, 2021, 10:08 PM CDT for 4 counties in North Dakota. It was in force for 67 min. 6 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, 10:08 PM CDT (03:08 UTC)
Expired: Jun 7, 2021, 11:15 PM CDT
In force: 67 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, Ransom County, ND, Richland County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 120 km from the middle of the area, began a volume at 03:09 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, 10:15 PM CDT	HAIL 1.5	Fort Ransom, ND
Jun 7, 10:15 PM CDT	HAIL 1.75	Fort Ransom, ND	GOLFBALL SIZED HAIL. DAMAGE TO HOUSE SIDING, SHINGLES, AND METAL HORSE TRAILER. TIME ESTIMATED FROM RADAR.
Jun 7, 10:15 PM CDT	HAIL 1.75	Fort Ransom, ND	LARGE HAIL AND DAMAGING WINDS. HAIL DAMAGED SIDING, SHINGLES, AND A METAL HORSE TRAILER.
Jun 7, 10:21 PM CDT	TSTM WND GST 58	2 W Lisbon, ND	CORRECTS PREVIOUS TSTM WND GST REPORT FROM 2 WNW LISBON. NDAWN MESONET SITE 2 W LISBON ND.
Jun 7, 10:21 PM CDT	TSTM WND GST 58	2 W Lisbon, ND	PEAK WIND MEASURED AT AN NDAWN STATION AT 3 METERS.
Jun 7, 10:25 PM CDT	TSTM WND GST 57	2 W Lisbon, ND	NDAWN MESONET SITE 2 W LISBON 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 7, 5:45 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 3.1 hours before the alert went out and 184 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: 2695 J/kg
Mixed-layer CIN: -26 J/kg
Mixed-layer LCL: 2391 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: 161 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.8

Open this sounding in Storm Lab

The text

As transmitted.

220 
WUUS53 KFGF 080308
SVRFGF
NDC003-017-073-077-080415-
/O.NEW.KFGF.SV.W.0016.210608T0308Z-210608T0415Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Grand Forks ND
1008 PM CDT Mon Jun 7 2021

The National Weather Service in Grand Forks has issued a

* Severe Thunderstorm Warning for...
  Ransom County in southeastern North Dakota...
  Southwestern Cass County in southeastern North Dakota...
  Southeastern Barnes County in southeastern North Dakota...
  Northwestern Richland County in southeastern North Dakota...

* Until 1115 PM CDT.

* At 1008 PM CDT, a severe thunderstorm was located near Fort Ransom,
  or 32 miles south of Valley City, moving east at 35 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...
  Fort Ransom and Englevale around 1015 PM CDT.
  Elliott around 1020 PM CDT.

Other locations in the path of this severe thunderstorm include
Lisbon, Anselm, Venlo and Sheldon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4630 9803 4656 9804 4656 9803 4663 9803
      4663 9804 4664 9804 4669 9724 4628 9714
TIME...MOT...LOC 0308Z 265DEG 32KT 4646 9799 

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

jr

1 follow-up statement

755 
WWUS53 KFGF 080342
SVSFGF

Severe Weather Statement
National Weather Service Grand Forks ND
1042 PM CDT Mon Jun 7 2021

NDC003-017-073-077-080415-
/O.CON.KFGF.SV.W.0016.000000T0000Z-210608T0415Z/
Ransom ND-Cass ND-Barnes ND-Richland ND-
1042 PM CDT Mon Jun 7 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM CDT
FOR RANSOM...SOUTHWESTERN CASS...SOUTHEASTERN BARNES AND NORTHWESTERN
RICHLAND COUNTIES...

At 1041 PM CDT, a severe thunderstorm was located near Anselm, or 37
miles southeast of Valley City, moving east at 35 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...
  Anselm, Venlo, Sheldon and McLeod.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 4630 9785 4655 9791 4657 9789 4661 9790
      4662 9789 4665 9789 4669 9724 4628 9714
TIME...MOT...LOC 0341Z 265DEG 32KT 4649 9756 

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, 8:12 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass	63 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, 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.