Alert archive / Minnesota / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 93, NWS Twin Cities, MN

July 10, 2018Lac qui Parle County, Yellow Medicine County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 10, 2018, 7:20 AM CDT for 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
Jul 10, 2018, 7:20 AM CDT (12:20 UTC)
Expired
Jul 10, 2018, 8:15 AM CDT
In force
55 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

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

The radar

The Sioux Falls radar (KFSD), 139 km from the middle of the area, began a volume at 12:22 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 nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 0.3 hours before the alert went out and 166 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 12:00Z on 2018-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Aberdeen, SD at 12:00Z on 2018-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 127 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
913 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
127 m²/s²
0-3 km storm-relative helicity
450 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

As transmitted.

184 
WUUS53 KMPX 101220
SVRMPX
MNC073-173-101315-
/O.NEW.KMPX.SV.W.0093.180710T1220Z-180710T1315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
720 AM CDT TUE JUL 10 2018

The National Weather Service in The Twin Cities has issued a

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

* Until 815 AM CDT.

* At 718 AM CDT, severe thunderstorms were located along a line
  extending from 6 miles northwest of Nassau to Tunerville, moving
  southeast at 35 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...
  Marietta around 735 AM CDT.
  Madison around 755 AM CDT.
  Canby around 805 AM CDT.
  Dawson around 810 AM CDT.
  Porter around 815 AM CDT.

Other locations impacted by these severe thunderstorms include
Nassau, Providence, Burr, Madison Airport, Florida Creek Wildlife
Management Area and St. Leo.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4473 9645 4515 9645 4498 9582 4463 9613
      4463 9631 4471 9646
TIME...MOT...LOC 1218Z 306DEG 29KT 4515 9652 4490 9668 

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

BORGHOFF
3 follow-up statements
557 
WWUS53 KMPX 101237
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
737 AM CDT TUE JUL 10 2018

MNC073-173-101315-
/O.CON.KMPX.SV.W.0093.000000T0000Z-180710T1315Z/
Lac qui Parle MN-Yellow Medicine MN-
737 AM CDT TUE JUL 10 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 AM CDT
FOR LAC QUI PARLE AND WEST CENTRAL YELLOW MEDICINE COUNTIES...

At 737 AM CDT, severe thunderstorms were located along a line
extending from near Providence to near Florida Creek Wildlife
Management Area to Gary, moving southeast at 50 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...
  Dawson around 740 AM CDT.
  Canby around 750 AM CDT.
  Porter around 800 AM CDT.

Other locations impacted by these severe thunderstorms include
Nassau, Providence, Burr, Madison Airport, Florida Creek Wildlife
Management Area and St. Leo.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4473 9645 4515 9645 4498 9582 4463 9613
      4463 9631 4471 9646
TIME...MOT...LOC 1237Z 305DEG 45KT 4487 9605 4487 9629 4480 9649 

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

BORGHOFF
665 
WWUS53 KMPX 101255
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
755 AM CDT TUE JUL 10 2018

MNC073-173-101315-
/O.CON.KMPX.SV.W.0093.000000T0000Z-180710T1315Z/
Lac qui Parle MN-Yellow Medicine MN-
755 AM CDT TUE JUL 10 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 AM CDT
FOR SOUTHERN LAC QUI PARLE AND WEST CENTRAL YELLOW MEDICINE
COUNTIES...

At 754 AM CDT, severe thunderstorms were located along a line
extending from near Dawson to near Providence to near Canby, moving
southeast at 45 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...
  Porter around 805 AM CDT.

Other locations impacted by these severe thunderstorms include
Providence, Burr, Madison Airport and St. Leo.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4473 9645 4502 9620 4497 9583 4463 9613
      4463 9631 4471 9646
TIME...MOT...LOC 1254Z 305DEG 39KT 4488 9603 4477 9614 4469 9631 

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

BORGHOFF
430 
WWUS53 KMPX 101315
SVSMPX

Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
815 AM CDT TUE JUL 10 2018

MNC073-173-101324-
/O.EXP.KMPX.SV.W.0093.000000T0000Z-180710T1315Z/
Lac qui Parle MN-Yellow Medicine MN-
815 AM CDT TUE JUL 10 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN LAC QUI PARLE AND
WEST CENTRAL YELLOW MEDICINE COUNTIES WILL EXPIRE AT 815 AM CDT...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with these thunderstorms.

LAT...LON 4473 9645 4502 9620 4497 9583 4463 9613
      4463 9631 4471 9646
TIME...MOT...LOC 1314Z 306DEG 29KT 4480 9588 4469 9599 4461 9616 

$$

BORGHOFF

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 10, 4:02 AM CDTExcessive Heat WatchMPXAnoka, Benton, Blue Earth, Brown, Carver, Chippewa and 22 more11 hr
Jul 10, 3:03 PM CDTHeat AdvisoryMPXAnoka, Benton, Blue Earth, Brown, Carver, Chippewa and 24 more52 hr

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.