Alert archive / Minnesota / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 59, NWS Twin Cities, MN

June 6, 2018Chippewa County, Lac qui Parle County, Yellow Medicine County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jun 6, 2018, 2:20 AM CDT for Chippewa County, Lac qui Parle County, Yellow Medicine County, Minnesota. It was in force for 55 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 6, 2018, 2:20 AM CDT (07:20 UTC)
Expired
Jun 6, 2018, 3:15 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 Chippewa County, MN, Lac qui Parle County, MN, Yellow Medicine County, MN

The radar

The Sioux Falls radar (KFSD), 170 km from the middle of the area, began a volume at 07:20 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.

IssuedProductOfficeLasted
Jun 6, 1:00 AM CDTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 7.3 hours before the alert went out and 185 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-pSkew-T log-p diagram, Aberdeen, SD at 00:00Z on 2018-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1161 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Aberdeen, SD at 00:00Z on 2018-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1161 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
3172 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
123 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

Open this sounding in Storm Lab

The text

As transmitted.

832 
WUUS53 KMPX 060720
SVRMPX
MNC023-073-173-060815-
/O.NEW.KMPX.SV.W.0059.180606T0720Z-180606T0815Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
220 AM CDT WED JUN 6 2018

The National Weather Service in The Twin Cities has issued a

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

* Until 315 AM CDT

* At 220 AM CDT, severe thunderstorms were located along a line
  extending from Graceville to near Albee to Toronto, moving east at
  60 mph.

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

  SOURCE...Radar indicated. 

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

* Severe thunderstorms will be near,
  Marietta around 225 AM CDT. 
  Bellingham around 230 AM CDT. 
  Madison around 235 AM CDT. 
  Dawson and Porter around 245 AM CDT. 
  Milan around 250 AM CDT. 
  Watson around 255 AM CDT. 

Other locations impacted by these severe thunderstorms include 
Nassau, Asbury, Providence, Big Stone National Wildlife Refuge, 
Burr, St. Leo, Gluek and Big Bend City.

This includes  Prairies Edge Casino Resort.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4527 9645 4525 9640 4525 9629 4522 9627
      4519 9617 4519 9612 4515 9604 4515 9545
      4475 9549 4462 9561 4463 9563 4463 9645
TIME...MOT...LOC 0720Z 275DEG 51KT 4556 9643 4507 9650 4459 9666 

HAIL...0.75IN
WIND...60MPH
 
$$
1 follow-up statement
099 
WWUS53 KMPX 060746
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
246 AM CDT WED JUN 6 2018

MNC023-073-173-060815-
/O.CON.KMPX.SV.W.0059.000000T0000Z-180606T0815Z/
Lac qui Parle MN-Chippewa MN-Yellow Medicine MN-
246 AM CDT WED JUN 6 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 AM CDT
FOR LAC QUI PARLE...CHIPPEWA AND YELLOW MEDICINE COUNTIES...

At 246 AM CDT, severe thunderstorms were located along a line 
extending from near Morris to near Cerro Gordo to near Porter, 
moving east at 60 mph.

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

SOURCE...Radar indicated. 

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

These severe storms will be near...
  Milan around 250 AM CDT. 
  Watson around 255 AM CDT. 
  Montevideo around 300 AM CDT. 
  Maynard around 315 AM CDT. 

Other locations impacted by these severe thunderstorms include 
Asbury, Providence, Burr, St. Leo, Gluek, Big Bend City, and Hazel 
Run.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4525 9629 4522 9627 4519 9617 4519 9612
      4515 9604 4515 9545 4475 9549 4462 9561
      4463 9563 4463 9645 4495 9645
TIME...MOT...LOC 0746Z 275DEG 51KT 4553 9594 4504 9601 4456 9617 

HAIL...0.75IN
WIND...60MPH
 
$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 6, 1:54 AM CDTSpecial Weather StatementMPXDouglas, Stevens, Todd66 min
Jun 6, 2:09 AM CDTSevere Thunderstorm WarningMPXDouglas, Todd51 min
Jun 6, 2:18 AM CDTSevere Thunderstorm WarningMPXPope, Stevens, Swift57 min
Jun 6, 3:11 AM CDTSevere Thunderstorm WarningMPXKandiyohi, Meeker, Pope, Stearns, Swift34 min
Jun 6, 3:35 AM CDTSevere Thunderstorm WarningMPXKandiyohi, Meeker, Renville25 min
Jun 6, 3:42 AM CDTSevere Thunderstorm WarningMPXMeeker, Stearns33 min
Jun 6, 3:57 AM CDTSevere Thunderstorm WarningMPXMcLeod, Meeker, Renville, Sibley, Wright48 min
Jun 6, 4:34 AM CDTSevere Thunderstorm WarningMPXBlue Earth, Brown, Le Sueur, Nicollet, Sibley, Watonwan41 min
Jun 6, 4:50 AM CDTSevere Thunderstorm WarningMPXBlue Earth, Faribault, Martin, Watonwan25 min
Jun 6, 5:02 AM CDTSpecial Weather StatementMPXDakota, Hennepin, Ramsey, Scott, Washington43 min
Jun 6, 5:24 AM CDTSpecial Weather StatementMPXFaribault, Freeborn, Steele, Waseca66 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2018Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.