Alert archive / Minnesota / Special Weather Statements in 2021

Special Weather Statement, NWS Grand Forks, ND

June 11, 20215 counties in Minnesota

NWS Grand Forks, ND issued this special weather statement at Jun 11, 2021, 6:39 AM CDT for 5 counties in Minnesota. It was in force for 66 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 11, 2021, 6:39 AM CDT (11:39 UTC)
Expired: Jun 11, 2021, 7:45 AM CDT
In force: 66 min
Issued by: NWS Grand Forks, ND

Counties Becker County, MN, Grant County, MN, Hubbard County, MN, Otter Tail County, MN, Wadena County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 187 km from the middle of the area, began a volume at 11:43 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.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 11.7 hours before the alert went out and 229 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: 1246 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 2436 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: -13 m²/s²
0-3 km storm-relative helicity: 42 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.3

Open this sounding in Storm Lab

The text

As transmitted.

633 
WWUS83 KFGF 111139
SPSFGF

Special Weather Statement
National Weather Service Grand Forks ND
639 AM CDT Fri Jun 11 2021
 
MNZ022>024-027-028-030>032-040-111245-
West Becker MN-Wadena MN-East Becker MN-East Otter Tail MN-
Mahnomen MN-Grant MN-South Clearwater MN-Hubbard MN-
West Otter Tail MN-
639 AM CDT Fri Jun 11 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN HUBBARD...WADENA...
OTTER TAIL...GRANT...SOUTHEASTERN MAHNOMEN...BECKER AND SOUTHEASTERN
CLEARWATER COUNTIES UNTIL 745 AM CDT...

At 639 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from White Earth Nation to near Ashby. Movement was
east at 45 mph.

Pea size hail and winds in excess of 40 mph will be possible with
these storms.

Locations impacted include...
Fergus Falls, Detroit Lakes, Wadena, Park Rapids, Perham, Pelican
Rapids and Ottertail Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A Severe Thunderstorm Watch remains in effect until 700 AM CDT for
northwestern Minnesota.

LAT...LON 4712 9618 4728 9500 4680 9477 4680 9478
      4639 9478 4637 9473 4637 9515 4611 9515
      4611 9577 4576 9576 4576 9614
TIME...MOT...LOC 1139Z 259DEG 39KT 4704 9577 4613 9577 

$$

Lynch

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 11, 3:23 AM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Griggs, Nelson, Ramsey, Steele	67 min
Jun 11, 3:36 AM CDT	Special Weather Statement	FGF	Barnes, Griggs, Steele	54 min
Jun 11, 3:48 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Griggs, Steele	57 min
Jun 11, 4:07 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Ransom, Richland, Sargent	38 min
Jun 11, 4:11 AM CDT	Special Weather Statement	FGF	Benson, Cavalier, Pembina, Ramsey, Towner, Walsh	64 min
Jun 11, 4:19 AM CDT	Severe Thunderstorm Warning	FGF	Cass, Grand Forks, Nelson, Steele, Traill, Walsh	56 min
Jun 11, 4:28 AM CDT	Severe Thunderstorm Warning	FGF	Benson, Eddy, Griggs, Nelson, Ramsey, Steele	62 min
Jun 11, 4:36 AM CDT	Severe Thunderstorm Warning	FGF	Cavalier, Nelson, Pembina, Ramsey, Towner, Walsh	54 min
Jun 11, 4:42 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Ransom, Richland, Sargent	63 min
Jun 11, 4:47 AM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass, Griggs, Steele	28 min
Jun 11, 5:07 AM CDT	Severe Thunderstorm Warning	FGF	Cass, Grand Forks, Nelson, Steele, Traill, Walsh	68 min
Jun 11, 5:27 AM CDT	Special Weather Statement	FGF	Cavalier, Pembina, Ramsey, Towner, Walsh	33 min
Jun 11, 5:39 AM CDT	Severe Thunderstorm Warning	FGF	Cass, Richland	66 min
Jun 11, 9:57 AM CDT	Wind Advisory	FGF	Barnes, Benson, Cavalier, Eddy, Griggs, Nelson and 4 more	11 hr
Jun 11, 6:07 AM CDT	Special Weather Statement	FGF	Clearwater, Mahnomen, Marshall, Norman, Pennington, Polk and 1 more	68 min

Nearby

Special Weather Statements in Minnesota, 2021 Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.