Alert archive / Minnesota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 4, NWS Grand Forks, ND

June 5, 2021Kittson County, Minnesota; Pembina County, North Dakota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 5, 2021, 8:44 PM CDT for Kittson County, Minnesota; Pembina County, North Dakota. It was in force for 16 min. 2 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 5, 2021, 8:44 PM CDT (01:44 UTC)
Expired: Jun 5, 2021, 9:00 PM CDT
In force: 16 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Kittson County, MN, Pembina County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 153 km from the middle of the area, began a volume at 01:44 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 5, 8:45 PM CDT	TSTM WND DMG	4 Wsw Pembina, ND	POWER LINES DOWN IN CENTRAL PEMBINA TOWNSHIP WITH POWER OUTAGES REPORTED IN AND NEAR THE COMMUNITY OF PEMBINA. TIME ESTIMATED BASED ON RADAR.
Jun 5, 8:50 PM CDT	TSTM WND GST 60	1 E St. Vincent, MN	PEAK WIND MEASURED BY THE RWIS STATION ON HIGHWAY 171 AT MILEPOST 1.8.

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 00:00Z, 1.7 hours before the alert went out and 288 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: 383 J/kg
Mixed-layer CIN: -63 J/kg
Mixed-layer LCL: 2694 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 164 m²/s²
0-3 km storm-relative helicity: 334 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.2

Open this sounding in Storm Lab

The text

As transmitted.

469 
WUUS53 KFGF 060144
SVRFGF
MNC069-NDC067-060200-
/O.NEW.KFGF.SV.W.0004.210606T0144Z-210606T0200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Grand Forks ND
844 PM CDT Sat Jun 5 2021

The National Weather Service in Grand Forks has issued a

* Severe Thunderstorm Warning for...
  Northwestern Kittson County in northwestern Minnesota...
  Northeastern Pembina County in northeastern North Dakota...

* Until 900 PM CDT.

* At 843 PM CDT, a severe thunderstorm was located over Pembina, or
  38 miles north of Grafton, moving east at 45 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* This severe thunderstorm will be near...
  St. Vincent and Pembina around 845 PM CDT.
  Noyes around 850 PM CDT.
  Humboldt around 855 PM CDT.
  Orleans around 900 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4882 9733 4900 9743 4900 9687 4888 9698
TIME...MOT...LOC 0143Z 248DEG 40KT 4896 9727 

HAIL...<.75IN
WIND...60MPH
 
$$

GG

1 follow-up statement

746 
WWUS53 KFGF 060207
SVSFGF

Severe Weather Statement
National Weather Service Grand Forks ND
907 PM CDT Sat Jun 5 2021

MNC069-NDC067-060217-
/O.EXP.KFGF.SV.W.0004.000000T0000Z-210606T0200Z/
Kittson MN-Pembina ND-
907 PM CDT Sat Jun 5 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN KITTSON AND
NORTHEASTERN PEMBINA COUNTIES HAS EXPIRED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been allowed to expire.

LAT...LON 4882 9733 4900 9743 4900 9687 4888 9698
TIME...MOT...LOC 0207Z 248DEG 40KT 4927 9717 

$$

GG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 5, 7:47 PM CDT	Severe Thunderstorm Warning	FGF	Kittson	58 min
Jun 5, 10:04 PM CDT	Special Weather Statement	FGF	Kittson	41 min
Jun 6, 12:48 AM CDT	Special Weather Statement	FGF	Roseau	57 min
Jun 6, 3:24 AM CDT	Severe Thunderstorm Warning	FGF	Kittson, Marshall	66 min
Jun 6, 11:23 AM CDT	Fire Weather Watch	FGF	Becker, Beltrami, Clay, Clearwater, Hubbard, Kittson and 8 more	16 hr
Jun 5, 7:24 PM CDT	Special Weather Statement	FGF	Pembina	66 min
Jun 6, 1:49 AM CDT	Special Weather Statement	FGF	Benson, Eddy, Towner	56 min
Jun 6, 1:55 AM CDT	Severe Thunderstorm Warning	FGF	Benson, Cavalier, Eddy, Ramsey, Towner	65 min
Jun 6, 2:17 AM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Towner	43 min
Jun 6, 2:39 AM CDT	Severe Thunderstorm Warning	FGF	Benson, Cavalier, Eddy, Grand Forks, Griggs, Nelson and 4 more	51 min
Jun 6, 4:33 AM CDT	Red Flag Warning	FGF	Barnes, Benson, Cass, Cavalier, Eddy, Grand Forks and 8 more	16 hr

Nearby

Severe Thunderstorm Warnings in Minnesota, 2021 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.