Alert archive / Minnesota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 26, NWS Twin Cities, MN

June 11, 2021Lac qui Parle County, Yellow Medicine County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 11, 2021, 5:50 AM CDT for Lac qui Parle County, Yellow Medicine County, Minnesota. It was in force for 55 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 11, 2021, 5:50 AM CDT (10:50 UTC)
Expired: Jun 11, 2021, 6:45 AM CDT
In force: 55 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Lac qui Parle County, MN, Yellow Medicine County, MN

The radar

The Sioux Falls radar (KFSD), 173 km from the middle of the area, began a volume at 10:51 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 11, 6:00 AM CDT	TSTM WND GST 53	5 S Marietta, MN	MNDOT RWIS MEASUREMENT ALONG HIGHWAY 212 JUST EAST OF THE STATE LINE.

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

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 10.8 hours before the alert went out and 173 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: 1337 J/kg
Mixed-layer CIN: -37 J/kg
Mixed-layer LCL: 2725 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 42 m²/s²
0-3 km storm-relative helicity: 91 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.7

Open this sounding in Storm Lab

The text

As transmitted.

115 
WUUS53 KMPX 111050
SVRMPX
MNC073-173-111145-
/O.NEW.KMPX.SV.W.0026.210611T1050Z-210611T1145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
550 AM CDT Fri Jun 11 2021

The National Weather Service in the Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Lac qui Parle County in west central Minnesota...
  Southwestern Yellow Medicine County in west central Minnesota...

* Until 645 AM CDT.

* At 546 AM CDT, severe thunderstorms were located along a line
  extending from near Dumont to 5 miles south of Goodwin, moving east
  at 40 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Canby.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4527 9645 4525 9629 4522 9627 4522 9622
      4519 9617 4519 9612 4516 9605 4505 9591
      4463 9598 4463 9645
TIME...MOT...LOC 1046Z 267DEG 35KT 4571 9647 4479 9686 

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

BPH

1 follow-up statement

511 
WWUS53 KMPX 111139
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
639 AM CDT Fri Jun 11 2021

MNC073-173-111149-
/O.EXP.KMPX.SV.W.0026.000000T0000Z-210611T1145Z/
Lac qui Parle MN-Yellow Medicine MN-
639 AM CDT Fri Jun 11 2021

...THE SEVERE THUNDERSTORM WARNING FOR LAC QUI PARLE AND SOUTHWESTERN
YELLOW MEDICINE COUNTIES WILL EXPIRE AT 645 AM CDT...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with these thunderstorms.

LAT...LON 4527 9645 4525 9629 4522 9627 4522 9622
      4519 9617 4519 9612 4516 9605 4505 9591
      4463 9598 4463 9645
TIME...MOT...LOC 1139Z 267DEG 35KT 4573 9575 4481 9615 

$$

BPH

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 11, 5:55 AM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Stevens, Swift	50 min
Jun 11, 6:09 AM CDT	Severe Thunderstorm Warning	MPX	Douglas, Pope	51 min
Jun 11, 6:36 AM CDT	Special Weather Statement	MPX	Chippewa, Swift, Yellow Medicine	39 min
Jun 11, 6:54 AM CDT	Special Weather Statement	MPX	Douglas, Pope, Todd	66 min
Jun 11, 7:22 AM CDT	Special Weather Statement	MPX	Chippewa, Kandiyohi, Yellow Medicine	38 min
Jun 11, 7:49 AM CDT	Special Weather Statement	MPX	Benton, Meeker, Stearns	56 min
Jun 11, 7:53 AM CDT	Special Weather Statement	MPX	Brown, McLeod, Redwood, Renville	67 min
Jun 11, 8:32 AM CDT	Special Weather Statement	MPX	Martin, Watonwan	58 min
Jun 11, 9:15 AM CDT	Special Weather Statement	MPX	Blue Earth, Faribault	60 min
Jun 11, 10:29 AM CDT	Special Weather Statement	MPX	Freeborn, Rice, Steele, Waseca	46 min
Jun 11, 11:04 AM CDT	Special Weather Statement	MPX	Goodhue	56 min
Jun 11, 11:41 AM CDT	Severe Thunderstorm Warning	MPX	Goodhue	34 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.