Alert archive / Minnesota / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 192, NWS Twin Cities, MN

October 11, 2020Douglas County, Pope County, Stevens County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Oct 11, 2020, 6:55 PM CDT for Douglas County, Pope County, Stevens County, Minnesota. It was in force for 50 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: Oct 11, 2020, 6:55 PM CDT (23:55 UTC)
Expired: Oct 11, 2020, 7:45 PM CDT
In force: 50 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Douglas County, MN, Pope County, MN, Stevens County, MN

The radar

The Minneapolis radar (KMPX), 193 km from the middle of the area, began a volume at 23:54 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
Oct 11, 6:59 PM CDT	HAIL 0.25	Cyrus, MN	PHONED IN REPORT.
Oct 11, 7:21 PM CDT	TSTM WND GST 65	2 Wsw Garfield, MN

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

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

Minneapolis, MN (KMPX), launched 12:00Z, 11.9 hours before the alert went out and 190 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: 1266 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 263 m²/s²
0-3 km storm-relative helicity: 348 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

468 
WUUS53 KMPX 112355
SVRMPX
MNC041-121-149-120045-
/O.NEW.KMPX.SV.W.0192.201011T2355Z-201012T0045Z/

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

The National Weather Service in the Twin Cities has issued a

* Severe Thunderstorm Warning for...
  Douglas County in west central Minnesota...
  Pope County in west central Minnesota...
  Eastern Stevens County in west central Minnesota...

* Until 745 PM CDT.

* At 655 PM CDT, severe thunderstorms were located along a line
  extending from near Kensington to near Cyrus to near Hancock to 9
  miles west of Benson, moving northeast at 45 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Trained weather spotters. A wind gust of 57 mph was 
           reported near Cyrus. 

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

* Severe thunderstorms will be near...
  Cyrus around 700 PM CDT.
  Kensington around 710 PM CDT.
  Evansville and Brandon around 715 PM CDT.
  Starbuck around 725 PM CDT.
  Lowry around 730 PM CDT.
  Alexandria around 745 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4611 9533 4542 9534 4541 9584 4576 9586
      4576 9576 4593 9576 4610 9560
TIME...MOT...LOC 2355Z 207DEG 41KT 4578 9576 4558 9575 4546 9575 4533
9579

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

Borghoff

2 follow-up statements

181 
WWUS53 KMPX 120009
SVSMPX

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

MNC149-120018-
/O.CAN.KMPX.SV.W.0192.000000T0000Z-201012T0045Z/
Stevens MN-
709 PM CDT Sun Oct 11 2020

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN STEVENS COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

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

LAT...LON 4611 9533 4542 9534 4541 9575 4593 9576
      4610 9560
TIME...MOT...LOC 0008Z 205DEG 45KT 4597 9570 4568 9566 4541 9565 

$$

MNC041-121-120045-
/O.CON.KMPX.SV.W.0192.000000T0000Z-201012T0045Z/
Douglas MN-Pope MN-
709 PM CDT Sun Oct 11 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR DOUGLAS AND POPE COUNTIES...

At 708 PM CDT, severe thunderstorms were located along a line
extending from near Evansville to 5 miles northeast of Cyrus to near
Lake Hassel, moving northeast at 50 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

These severe storms will be near...
  Evansville around 715 PM CDT.
  Starbuck around 725 PM CDT.
  Brandon around 730 PM CDT.
  Glenwood around 735 PM CDT.
  Alexandria around 750 PM CDT.

Other locations impacted by these severe thunderstorms include
Alexandria Airport, Forada, Lake Emily, Garfield, Long Beach, Leaf
Valley, Holmes City, Farwell, Millerville and Lake Minnewaska.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4611 9533 4542 9534 4541 9575 4593 9576
      4610 9560
TIME...MOT...LOC 0008Z 205DEG 45KT 4597 9570 4568 9566 4541 9565 

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

Borghoff

314 
WWUS53 KMPX 120020
SVSMPX

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

MNC041-121-120045-
/O.CON.KMPX.SV.W.0192.000000T0000Z-201012T0045Z/
Douglas MN-Pope MN-
720 PM CDT Sun Oct 11 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR CENTRAL DOUGLAS AND CENTRAL POPE COUNTIES...

At 719 PM CDT, severe thunderstorms were located along a line
extending from near Brandon to near Alexandria to near Lowry to near
Lake Hassel, moving northeast at 50 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

These severe storms will be near...
  Brandon around 725 PM CDT.
  Starbuck around 730 PM CDT.
  Alexandria around 735 PM CDT.
  Glenwood around 740 PM CDT.

Other locations impacted by these severe thunderstorms include
Alexandria Airport, Forada, Lake Emily, Garfield, Long Beach, Leaf
Valley, Holmes City, Farwell, Millerville and Lake Minnewaska.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4611 9533 4542 9534 4541 9569 4585 9563
      4593 9576 4610 9560
TIME...MOT...LOC 0019Z 224DEG 42KT 4600 9559 4590 9547 4573 9549 4545
9555

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

Borghoff

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 11, 6:29 PM CDT	Severe Thunderstorm Warning	MPX	Lac qui Parle	23 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.