Alert archive / Minnesota / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 116, NWS Twin Cities, MN

July 5, 2011Lac qui Parle County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 5, 2011, 1:20 AM CDT for Lac qui Parle 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 5, 2011, 1:20 AM CDT (06:20 UTC)
Expired
Jul 5, 2011, 2:15 AM CDT
In force
55 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Lac qui Parle County, MN

The radar

The Sioux Falls radar (KFSD), 173 km from the middle of the area, began a volume at 06:22 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 watch it was issued in

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

IssuedProductOfficeLasted
Jul 4, 7:14 PM CDTSevere Thunderstorm WatchSPC9 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 6.3 hours before the alert went out and 180 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 2011-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3256 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 2011-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 94 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
3256 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
1088 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
150 m²/s²
Significant tornado parameter
1.3
Supercell composite
9.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

064 
WUUS53 KMPX 050620
SVRMPX
MNC073-050715-
/O.NEW.KMPX.SV.W.0116.110705T0620Z-110705T0715Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
120 AM CDT TUE JUL 5 2011

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LAC QUI PARLE COUNTY IN WEST CENTRAL MINNESOTA...

* UNTIL 215 AM CDT

* AT 119 AM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF
  PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH.
  THIS STORM WAS LOCATED NEAR ODESSA...OR ABOUT 5 MILES SOUTHEAST OF
  ORTONVILLE...AND MOVING SOUTHEAST AT 30 MPH.

LOCATIONS IN THE WARNING INCLUDE...
  MADISON...
  NASSAU...
  BELLINGHAM...
  LOUISBURG...
  MARIETTA...
  BOYD...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS IN EXCESS OF 60 MPH AND LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

REPORT ANY SIGNIFICANT WIND OR HAIL DAMAGE TO THE NEAREST LAW
ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER SERVICE.

&&

LAT...LON 4527 9646 4527 9642 4526 9629 4523 9627
      4523 9623 4514 9603 4497 9582 4496 9583
      4493 9576 4489 9584 4482 9585 4482 9644
TIME...MOT...LOC 0620Z 328DEG 25KT 4523 9638
WIND...HAIL 60MPH 1.00IN

$$
2 follow-up statements
742 
WWUS53 KMPX 050641
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
141 AM CDT TUE JUL 5 2011

MNC073-050715-
/O.CON.KMPX.SV.W.0116.000000T0000Z-110705T0715Z/
LAC QUI PARLE MN-
141 AM CDT TUE JUL 5 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR LAC QUI PARLE
COUNTY UNTIL 215 AM CDT...

AT 137 AM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR BELLINGHAM...
OR 10 MILES NORTHWEST OF MADISON...MOVING SOUTHEAST AT 30 MPH.

LOCATIONS IMPACTED INCLUDE...
  MADISON...MARIETTA...BOYD...CERRO GORDO AND DAWSON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE
DAMAGING HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY
AWAY FROM WINDOWS!

&&

LAT...LON 4493 9583 4484 9591 4484 9643 4501 9645
      4515 9645 4523 9626 4523 9624
TIME...MOT...LOC 0641Z 328DEG 25KT 4510 9628
WIND...HAIL 60MPH 1.00IN

$$
106 
WWUS53 KMPX 050709
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
209 AM CDT TUE JUL 5 2011

MNC073-050724-
/O.EXP.KMPX.SV.W.0116.000000T0000Z-110705T0715Z/
LAC QUI PARLE MN-
209 AM CDT TUE JUL 5 2011

...THE SEVERE THUNDERSTORM WARNING FOR LAC QUI PARLE COUNTY WILL
EXPIRE AT 215 AM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR 
PROPERTY...HOWEVER SMALL HAIL...GUSTY WINDS TO 50 MPH AND HEAVY RAIN 
ARE STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 4493 9583 4484 9591 4484 9643 4501 9645
      4515 9645 4523 9626 4523 9624
TIME...MOT...LOC 0709Z 328DEG 25KT 4493 9613

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 4, 10:33 PM CDTSpecial Weather StatementMPXDouglas117 min
Jul 4, 11:54 PM CDTSpecial Weather StatementMPXDouglas, Pope, Stevens, Todd96 min
Jul 5, 12:35 AM CDTSevere Thunderstorm WarningMPXStevens55 min
Jul 5, 2:14 AM CDTSpecial Weather StatementMPXChippewa, Kandiyohi, Lac qui Parle, Pope, Renville, Stearns and 2 more76 min
Jul 5, 3:50 AM CDTAreal Flood AdvisoryMPXLac qui Parle, Yellow Medicine3 hr
Jul 5, 4:56 AM CDTAreal Flood AdvisoryMPXStevens, Swift4 hr
Jul 5, 5:05 AM CDTSpecial Weather StatementMPXPope, Stevens, Swift55 min
Jul 5, 7:06 AM CDTAreal Flood AdvisoryMPXLac qui Parle, Yellow Medicine3 hr
Jul 5, 6:26 PM CDTSevere Thunderstorm WarningMPXAnoka, Ramsey, Washington32 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2011Every severe thunderstorm warning in 2011

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.