Alert archive / Minnesota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 32, NWS Grand Forks, ND

June 9, 2021Roseau County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 9, 2021, 1:08 PM CDT for Roseau County, Minnesota. It was in force for 32 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 9, 2021, 1:08 PM CDT (18:08 UTC)
Expired: Jun 9, 2021, 1:40 PM CDT
In force: 32 min
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Roseau County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 176 km from the middle of the area, began a volume at 18:09 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 9, 1:21 PM CDT	TSTM WND GST 56	Badger, MN	56 MPH GUST AT RWIS IN BADGER.
Jun 9, 1:40 PM CDT	TSTM WND GST 63	2 Ene Roseau, MN	PEAK WIND MEASURED AT THE ROSEAU AIRPORT /KROX/, OBSERVED FROM 1 MINUTE DATA.
Jun 9, 1:40 PM CDT	TSTM WND GST 63	2 E Roseau, MN	TIME ESTIMATED FROM RADAR.

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, 6.1 hours before the alert went out and 192 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.

360 
WUUS53 KFGF 091808
SVRFGF
MNC135-091900-
/O.NEW.KFGF.SV.W.0032.210609T1808Z-210609T1900Z/

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

The National Weather Service in Grand Forks has issued a

* Severe Thunderstorm Warning for...
  Western Roseau County in northwestern Minnesota...

* Until 200 PM CDT.

* At 108 PM CDT, a severe thunderstorm was located near Badger, or 12
  miles southwest of Roseau, moving northeast 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...
  Fox around 120 PM CDT.
  Ross around 125 PM CDT.

Other locations in the path of this severe thunderstorm include
Roseau and Pinecreek.

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.

&&

LAT...LON 4862 9591 4871 9614 4900 9602 4900 9547
TIME...MOT...LOC 1808Z 210DEG 30KT 4874 9597 

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

Hopkins

2 follow-up statements

708 
WWUS53 KFGF 091826
SVSFGF

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

MNC135-091900-
/O.CON.KFGF.SV.W.0032.000000T0000Z-210609T1900Z/
Roseau MN-
126 PM CDT Wed Jun 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM CDT
FOR NORTH CENTRAL ROSEAU COUNTY...

At 126 PM CDT, a severe thunderstorm was located near Fox, or near
Roseau, moving northeast 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...
  Pinecreek.

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.

&&

LAT...LON 4870 9582 4887 9607 4900 9602 4900 9547
TIME...MOT...LOC 1826Z 210DEG 30KT 4887 9585 

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

Hopkins

418 
WWUS53 KFGF 091840
SVSFGF

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

MNC135-091850-
/O.CAN.KFGF.SV.W.0032.000000T0000Z-210609T1900Z/
Roseau MN-
140 PM CDT Wed Jun 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL ROSEAU 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 4870 9582 4887 9607 4900 9602 4900 9547
TIME...MOT...LOC 1839Z 210DEG 30KT 4897 9576 

$$

Hopkins

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 9, 12:49 AM CDT	Special Weather Statement	FGF	Marshall	56 min
Jun 9, 12:54 AM CDT	Severe Thunderstorm Warning	FGF	Marshall	37 min
Jun 9, 1:11 AM CDT	Special Weather Statement	FGF	Marshall, Pennington, Polk, Red Lake	64 min
Jun 9, 2:12 AM CDT	Special Weather Statement	FGF	Marshall, Pennington	63 min
Jun 9, 3:38 AM CDT	Special Weather Statement	FGF	Kittson, Roseau	67 min
Jun 9, 4:47 AM CDT	Special Weather Statement	FGF	Lake of the Woods, Roseau	58 min
Jun 9, 12:51 PM CDT	Severe Thunderstorm Warning	FGF	Marshall, Roseau	54 min
Jun 9, 1:13 PM CDT	Special Weather Statement	FGF	Pennington	47 min
Jun 9, 1:46 PM CDT	Special Weather Statement	FGF	Lake of the Woods	59 min
Jun 9, 3:07 PM CDT	Special Weather Statement	FGF	Becker, Hubbard, Otter Tail, Wadena	53 min
Jun 9, 3:15 PM CDT	Special Weather Statement	FGF	Beltrami, Clearwater	60 min
Jun 9, 4:44 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami	61 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 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.