Alert archive / Minnesota / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 191, NWS Twin Cities, MN

October 11, 2020Lac qui Parle County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Oct 11, 2020, 6:29 PM CDT for Lac qui Parle County, Minnesota. It was in force for 23 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: Oct 11, 2020, 6:29 PM CDT (23:29 UTC)
Expired: Oct 11, 2020, 6:52 PM CDT
In force: 23 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Lac qui Parle County, MN

The radar

The Sioux Falls radar (KFSD), 169 km from the middle of the area, began a volume at 23:34 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Oct 11, 4:54 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 11.5 hours before the alert went out and 174 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: 1486 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 465 m²/s²
0-3 km storm-relative helicity: 500 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

397 
WUUS53 KMPX 112329
SVRMPX
MNC073-120015-
/O.NEW.KMPX.SV.W.0191.201011T2329Z-201012T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
629 PM CDT Sun Oct 11 2020

The National Weather Service in the Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Western Lac qui Parle County in west central Minnesota...

* Until 715 PM CDT.

* At 628 PM CDT, severe thunderstorms were located along a line
  extending from near Bellingham to near Gary, moving northeast at 30
  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.

* Severe thunderstorms will be near...
  Bellingham around 635 PM CDT.
  Madison around 700 PM CDT.

Other locations impacted by these severe thunderstorms include
Louisburg, Cerro Gordo, Madison Airport and Florida Creek Wildlife
Management Area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4521 9624 4519 9612 4517 9608 4516 9605
      4512 9601 4481 9616 4480 9645 4484 9645
TIME...MOT...LOC 2328Z 223DEG 25KT 4511 9623 4485 9640 

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

Borghoff

2 follow-up statements

690 
WWUS53 KMPX 112339
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
639 PM CDT Sun Oct 11 2020

MNC073-120015-
/O.CON.KMPX.SV.W.0191.000000T0000Z-201012T0015Z/
Lac qui Parle MN-
639 PM CDT Sun Oct 11 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR WESTERN LAC QUI PARLE COUNTY...

At 638 PM CDT, severe thunderstorms were located along a line
extending from 5 miles south of Correll to 6 miles northeast of Gary,
moving northeast at 25 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.

These severe storms will be near...
  Madison around 715 PM CDT.

Other locations impacted by these severe thunderstorms include
Louisburg, Cerro Gordo, Madison Airport and Florida Creek Wildlife
Management Area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4520 9621 4519 9612 4517 9608 4516 9605
      4512 9601 4481 9616 4480 9645
TIME...MOT...LOC 2338Z 231DEG 21KT 4515 9617 4484 9635 

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

Borghoff

000 
WWUS53 KMPX 112352
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
652 PM CDT Sun Oct 11 2020

MNC073-120000-
/O.CAN.KMPX.SV.W.0191.000000T0000Z-201012T0015Z/
Lac qui Parle MN-
652 PM CDT Sun Oct 11 2020

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN LAC QUI PARLE COUNTY
IS CANCELLED...
            
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 has been cancelled.

A Severe Thunderstorm Watch remains in effect until midnight CDT for
west central Minnesota.

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

LAT...LON 4520 9621 4519 9612 4517 9608 4516 9605
      4512 9601 4481 9616 4480 9645
TIME...MOT...LOC 2348Z 223DEG 25KT 4520 9610 4489 9628 

$$

Borghoff

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 11, 6:55 PM CDT	Severe Thunderstorm Warning	MPX	Douglas, Pope, Stevens	50 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2020 Every severe thunderstorm warning in 2020

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.