Alert archive / North Dakota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 31, NWS Grand Forks, ND

June 9, 2021Pembina County, North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 9, 2021, 12:59 PM CDT for Pembina County, North Dakota. It was in force for 17 min. 1 report 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 9, 2021, 12:59 PM CDT (17:59 UTC)
Expired: Jun 9, 2021, 1:16 PM CDT
In force: 17 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

County Pembina County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 125 km from the middle of the area, began a volume at 18:01 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 9, 1:01 PM CDT	FUNNEL CLOUD	6 Sw Bowesmont, ND	PERSISTENT WALL CLOUD WITH BRIEF FUNNEL OBSERVED WEST OF INTERSTATE 19.

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

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 6.0 hours before the alert went out and 292 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: 1926 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 120 m²/s²
0-3 km storm-relative helicity: 125 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

414 
WUUS53 KFGF 091759
SVRFGF
NDC067-091830-
/O.NEW.KFGF.SV.W.0031.210609T1759Z-210609T1830Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Grand Forks ND
1259 PM CDT Wed Jun 9 2021

The National Weather Service in Grand Forks has issued a

* Severe Thunderstorm Warning for...
  Southeastern Pembina County in northeastern North Dakota...

* Until 130 PM CDT.

* At 1258 PM CDT, a severe thunderstorm was located near St. Thomas,
  or 17 miles north of Grafton, moving northeast at 40 mph.

  HAZARD...Quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* This severe thunderstorm will be near...
  Bowesmont around 110 PM CDT.
  Joliette around 115 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4867 9711 4854 9731 4854 9734 4865 9752
      4885 9721
TIME...MOT...LOC 1758Z 221DEG 33KT 4866 9734 

HAIL...1.00IN
WIND...<50MPH
 
$$

Hopkins

1 follow-up statement

180 
WWUS53 KFGF 091816
SVSFGF

Severe Weather Statement
National Weather Service Grand Forks ND
116 PM CDT Wed Jun 9 2021

NDC067-091826-
/O.CAN.KFGF.SV.W.0031.000000T0000Z-210609T1830Z/
Pembina ND-
116 PM CDT Wed Jun 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN PEMBINA COUNTY IS
CANCELLED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.  However gusty winds are still possible with this
thunderstorm.

LAT...LON 4867 9711 4854 9731 4854 9734 4865 9752
      4885 9721
TIME...MOT...LOC 1815Z 221DEG 33KT 4879 9717 

$$

Hopkins

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 9, 4:35 AM CDT	Special Weather Statement	FGF	Pembina	55 min
Jun 9, 12:35 PM CDT	Severe Thunderstorm Warning	FGF	Pembina, Walsh	40 min
Jun 9, 12:47 PM CDT	Severe Thunderstorm Warning	FGF	Pembina	28 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.