Alert archive / Minnesota / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 243, NWS Twin Cities, MN

July 31, 2008Lac qui Parle County, Yellow Medicine County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 31, 2008, 5:20 AM CDT for Lac qui Parle County, Yellow Medicine County, Minnesota. It was in force for 55 min. 9 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
Jul 31, 2008, 5:20 AM CDT (10:20 UTC)
Expired
Jul 31, 2008, 6:15 AM CDT
In force
55 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon

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

The radar

The Sioux Falls radar (KFSD), 157 km from the middle of the area, began a volume at 10:21 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

TimeReportWhereRemark
Jul 31, 5:50 AM CDTTSTM WND GST 704 Nw Madison, MNTREE DAMAGE. 60 TO 70 MPH WIND GUSTS.
Jul 31, 5:55 AM CDTHAIL 0.755 Nw Madison, MN
Jul 31, 6:00 AM CDTTSTM WND DMG5 Nw Madison, MNTOPS BROKEN OFF TREES
Jul 31, 6:02 AM CDTHAIL 0.75Dawson, MN
Jul 31, 6:10 AM CDTTSTM WND DMGDawson, MNMANY LARGE TREES TOPPLED ACROSS TOWN, ALONG WITH LARGE BRANCHES. SEVERAL LARGE TREES ALSO REPORTED DOWNED OVER LOCAL ROADS.
Jul 31, 6:10 AM CDTHAIL 0.75S Boyd, MNESTIMATED 50 TO 60 MPH WIND GUST.
Jul 31, 6:13 AM CDTTSTM WND GST 862 Sse Madison, MN
Jul 31, 6:15 AM CDTTSTM WND DMGMadison, MNWOOD FENCE SNAPPED AND TIN ROOF DAMAGED AT RADIO STATION. NUMEROUS TREES DOWN AROUND TOWN...MANY ROADS BLOCKED. FLAG POLE DOWN. POWER LINES DOWN. ROAD SIGNS DOWN.
Jul 31, 6:16 AM CDTTSTM WND DMGMadison, MN10 INCH TREE DOWN

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.

IssuedProductOfficeLasted
Jul 31, 4:51 AM CDTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 10.3 hours before the alert went out and 177 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, Minneapolis, MN at 00:00Z on 2008-07-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 148 joules per kilogram.LCLLFCEL10008507005003002001001 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, Minneapolis, MN at 00:00Z on 2008-07-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 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
148 J/kg
Mixed-layer CIN
-303 J/kg
Mixed-layer LCL
1998 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
147 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 311020
SVRMPX
MNC073-173-311115-
/O.NEW.KMPX.SV.W.0243.080731T1020Z-080731T1115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
520 AM CDT THU JUL 31 2008

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 615 AM CDT

* AT 519 AM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF
  PRODUCING NICKEL SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 70 MPH. 
  THIS STORM WAS LOCATED 21 MILES NORTHWEST OF MARIETTA...OR ABOUT 7
  MILES SOUTHWEST OF MILBANK...AND MOVING EAST AT 26 MPH.

* SOME LOCATIONS INCLUDE...
  MARIETTA...
  BELLINGHAM...
  PROVIDENCE...
  CERRO GORDO...
  WOOD LAKE...
  ST LEO...
  PORTER...
  MADISON...
  HAZEL RUN...
  HANLEY FALLS...
  ECHO...
  DAWSON...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS 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 9643 4517 9609 4494 9579 4489 9567
      4476 9549 4471 9537 4454 9535 4454 9559
      4464 9560 4463 9646
TIME...MOT...LOC 1019Z 282DEG 23KT 4517 9673

$$
1 follow-up statement
000 
WWUS53 KMPX 311059
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
559 AM CDT THU JUL 31 2008

MNC073-173-311115-
/O.CON.KMPX.SV.W.0243.000000T0000Z-080731T1115Z/
LAC QUI PARLE MN-YELLOW MEDICINE MN-
559 AM CDT THU JUL 31 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 AM CDT
FOR YELLOW MEDICINE AND LAC QUI PARLE COUNTIES...

AT 556 AM CDT...RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM...
CAPABLE OF PRODUCING NICKEL SIZE HAIL AND DESTRUCTIVE WINDS IN EXCESS
OF 65 MPH.  THE SEVERE STORM WAS LOCATED 3 MILES SOUTHWEST OF
DAWSON...AND MOVING SOUTHEAST AT 65 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE SPRING CREEK...PROVIDENCE...
CERRO GORDO...WOOD LAKE...ST LEO...PORTER...MARIETTA...MADISON...
LOUISBURG AND HAZEL RUN.

THIS IS A DANGEROUS SITUATION. PREPARE IMMEDIATELY FOR DESTRUCTIVE
WINDS...WHICH CAN UPROOT TREES...DOWN POWER LINES...AND CAUSE DAMAGE
TO ROOFS AND WINDOWS. EVACUATE MOBILE HOMES AS THEY MAY BE
OVERTURNED. LARGE HAIL IS ALSO EXPECTED...WHICH CAN CAUSE DAMAGE TO
VEHICLES AND WINDOWS. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND
STAY AWAY FROM WINDOWS.

LAT...LON 4527 9643 4517 9609 4494 9579 4489 9567
      4476 9549 4471 9537 4454 9535 4454 9559
      4464 9560 4463 9646
TIME...MOT...LOC 1059Z 299DEG 57KT 4489 9604

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 31, 5:12 AM CDTSevere Thunderstorm WarningMPXChippewa, Lac qui Parle, Swift48 min
Jul 31, 5:47 AM CDTSevere Thunderstorm WarningMPXChippewa, Kandiyohi, Meeker, Renville43 min
Jul 31, 5:54 AM CDTSevere Thunderstorm WarningMPXChippewa, Lac qui Parle, Renville, Swift, Yellow Medicine66 min
Jul 31, 6:09 AM CDTSevere Thunderstorm WarningMPXLac qui Parle, Yellow Medicine51 min
Jul 31, 6:17 AM CDTSevere Thunderstorm WarningMPXChippewa, Kandiyohi, Meeker, Redwood, Renville, Swift58 min
Jul 31, 6:30 AM CDTSevere Thunderstorm WarningMPXMcLeod, Nicollet, Renville, Sibley60 min
Jul 31, 6:48 AM CDTTornado WarningMPXChippewa, Kandiyohi, Swift42 min
Jul 31, 6:55 AM CDTSevere Thunderstorm WarningMPXChippewa, Swift50 min
Jul 31, 6:56 AM CDTSevere Thunderstorm WarningMPXBrown, Le Sueur, Nicollet, Redwood, Renville, Sibley64 min
Jul 31, 7:06 AM CDTSevere Thunderstorm WarningMPXMcLeod, Meeker, Wright54 min
Jul 31, 7:15 AM CDTSevere Thunderstorm WarningMPXKandiyohi, Redwood, Renville46 min
Jul 31, 7:20 AM CDTHigh Wind WarningMPXLac qui Parle, Yellow Medicine100 min
Jul 31, 7:27 AM CDTSevere Thunderstorm WarningMPXWatonwan63 min
Jul 31, 7:32 AM CDTSevere Thunderstorm WarningMPXCarver, Le Sueur, McLeod, Nicollet, Renville, Scott and 1 more58 min
Jul 31, 7:36 AM CDTTornado WarningMPXKandiyohi, McLeod, Meeker39 min
Jul 31, 7:39 AM CDTSevere Thunderstorm WarningMPXBlue Earth, Le Sueur, Nicollet, Waseca66 min
Jul 31, 7:59 AM CDTSevere Thunderstorm WarningMPXFaribault, Martin61 min
Jul 31, 8:10 AM CDTSevere Thunderstorm WarningMPXDakota, Hennepin, Le Sueur, Rice, Scott, Steele and 1 more50 min
Jul 31, 8:21 AM CDTSevere Thunderstorm WarningMPXFreeborn54 min
Jul 31, 8:34 AM CDTSevere Thunderstorm WarningMPXDakota, Goodhue56 min
Jul 31, 8:47 AM CDTTornado WarningMPXGoodhue, Rice, Steele18 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2008Every severe thunderstorm warning in 2008

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.