Alert archive / Minnesota / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 114, NWS Twin Cities, MN

August 3, 2018Lac qui Parle County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 3, 2018, 4:41 PM CDT for Lac qui Parle County, Minnesota. It was in force for 49 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: Aug 3, 2018, 4:41 PM CDT (21:41 UTC)
Expired: Aug 3, 2018, 5:30 PM CDT
In force: 49 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

County Lac qui Parle County, MN

The radar

The Aberdeen radar (KABR), 174 km from the middle of the area, began a volume at 21:41 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
Aug 3, 5:35 PM CDT	TSTM WND GST 47	Madison Ap, MN	AWOS STATION DXX, MADISON AP.

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 12:00Z, 9.7 hours before the alert went out and 172 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: 1530 J/kg
Mixed-layer CIN: -435 J/kg
Mixed-layer LCL: 1675 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 157 m²/s²
0-3 km storm-relative helicity: 135 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.4

Open this sounding in Storm Lab

The text

As transmitted.

636 
WUUS53 KMPX 032141
SVRMPX
MNC073-032230-
/O.NEW.KMPX.SV.W.0114.180803T2141Z-180803T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
441 PM CDT FRI AUG 3 2018

The National Weather Service in The Twin Cities has issued a

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

* Until 530 PM CDT.

* At 441 PM CDT, a severe thunderstorm was located near Nassau, or 16
  miles southeast of Milbank, moving east at 25 mph.

  HAZARD...60 mph wind gusts and half dollar 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...
  Bellingham around 450 PM CDT.
  Madison around 505 PM CDT.
  Dawson around 525 PM CDT.

This includes the following highways...
 U.S. Highway 212 between mile markers 0 and 22.
 U.S. Highway 75 between mile markers 99 and 127.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4507 9646 4526 9635 4525 9629 4522 9627
      4522 9622 4519 9617 4519 9612 4516 9605
      4506 9592 4484 9606 4491 9646
TIME...MOT...LOC 2141Z 277DEG 21KT 4507 9637 

HAIL...1.25IN
WIND...60MPH
 
$$

BORGHOFF

2 follow-up statements

343 
WWUS53 KMPX 032202
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
502 PM CDT FRI AUG 3 2018

MNC073-032230-
/O.CON.KMPX.SV.W.0114.000000T0000Z-180803T2230Z/
Lac qui Parle MN-
502 PM CDT FRI AUG 3 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR WESTERN LAC QUI PARLE COUNTY...

At 501 PM CDT, severe thunderstorms were located along a line
extending from near Appleton to Madison to near Marietta, moving east
at 25 mph.

HAZARD...60 mph wind gusts and nickel size hail.

SOURCE...Radar indicated.

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

These severe storms will be near...
  Madison around 505 PM CDT.
  Dawson around 520 PM CDT.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4507 9646 4519 9617 4519 9612 4516 9605
      4506 9592 4484 9606 4491 9646
TIME...MOT...LOC 2201Z 288DEG 23KT 4514 9604 4502 9620 4495 9645 

HAIL...0.88IN
WIND...60MPH
 
$$

BORGHOFF

072 
WWUS53 KMPX 032229
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
529 PM CDT FRI AUG 3 2018

MNC073-032239-
/O.EXP.KMPX.SV.W.0114.000000T0000Z-180803T2230Z/
Lac qui Parle MN-
529 PM CDT FRI AUG 3 2018

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN LAC QUI PARLE COUNTY
WILL EXPIRE AT 530 PM 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 and heavy rain are still possible with these thunderstorms.

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

LAT...LON 4507 9646 4519 9617 4519 9612 4516 9605
      4506 9592 4484 9606 4491 9646
TIME...MOT...LOC 2229Z 277DEG 21KT 4512 9582 4500 9598 4493 9623 

$$

BORGHOFF

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 3, 7:37 AM CDT	Special Weather Statement	MPX	Meeker	38 min
Aug 3, 7:47 AM CDT	Severe Thunderstorm Warning	MPX	Meeker	43 min
Aug 3, 8:12 AM CDT	Severe Thunderstorm Warning	MPX	Wright	48 min
Aug 3, 8:51 AM CDT	Special Weather Statement	MPX	Ramsey	24 min
Aug 3, 8:54 AM CDT	Special Weather Statement	MPX	Hennepin	36 min
Aug 3, 9:10 AM CDT	Severe Thunderstorm Warning	MPX	Dakota, Hennepin, Scott	35 min
Aug 3, 9:24 AM CDT	Special Weather Statement	MPX	Washington	36 min
Aug 3, 9:43 AM CDT	Severe Thunderstorm Warning	MPX	Dakota, Goodhue, Washington	32 min
Aug 3, 10:36 AM CDT	Special Weather Statement	MPX	Todd	24 min
Aug 3, 11:36 AM CDT	Special Weather Statement	MPX	Kanabec, Mille Lacs	24 min
Aug 3, 12:02 PM CDT	Special Weather Statement	MPX	Kanabec, Mille Lacs	28 min
Aug 3, 1:09 PM CDT	Special Weather Statement	MPX	Kanabec, Mille Lacs	51 min
Aug 3, 2:13 PM CDT	Special Weather Statement	MPX	Kanabec	32 min
Aug 3, 4:21 PM CDT	Special Weather Statement	MPX	Stevens	39 min
Aug 3, 4:32 PM CDT	Special Weather Statement	MPX	Lac qui Parle	43 min
Aug 3, 5:41 PM CDT	Special Weather Statement	MPX	Chippewa, Lac qui Parle, Pope, Swift, Yellow Medicine	34 min
Aug 3, 6:04 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Pope, Stearns, Swift	41 min
Aug 3, 6:28 PM CDT	Severe Thunderstorm Warning	MPX	Kandiyohi, Meeker	47 min
Aug 3, 6:34 PM CDT	Tornado Warning	MPX	Kandiyohi, Meeker	26 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2018 Every severe thunderstorm warning in 2018

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.