Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 229, NWS Twin Cities, MN

July 25, 2008Barron County, Chippewa County, Dunn County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 25, 2008, 3:31 PM CDT for Barron County, Chippewa County, Dunn County, Wisconsin. It was in force for 59 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
Jul 25, 2008, 3:31 PM CDT (20:31 UTC)
Expired
Jul 25, 2008, 4:30 PM CDT
In force
59 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon

Counties Barron County, WI, Chippewa County, WI, Dunn County, WI

The radar

The La Crosse radar (KARX), 156 km from the middle of the area, began a volume at 20:31 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 25, 4:05 PM CDTTSTM WND DMG2 Sse Bloomer, WITREES DOWN NEAR COUNTY ROAD Q AND 157TH AVENUE. POWER LINES ALSO KNOCKED 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 25, 1:19 PM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 8.5 hours before the alert went out and 173 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 12:00Z on 2008-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1404 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, Minneapolis, MN at 12:00Z on 2008-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 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
1404 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
503 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
61 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.6

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 252031
SVRMPX
WIC005-017-033-252130-
/O.NEW.KMPX.SV.W.0229.080725T2031Z-080725T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
331 PM CDT FRI JUL 25 2008

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN BARRON COUNTY IN NORTHWEST WISCONSIN...
  CHIPPEWA COUNTY IN WEST CENTRAL WISCONSIN...
  NORTHEASTERN DUNN COUNTY IN WEST CENTRAL WISCONSIN...

* UNTIL 430 PM CDT

* AT 326 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM...CAPABLE OF
  PRODUCING NICKEL SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH. 
  THIS STORM WAS LOCATED 4 MILES NORTH OF DALLAS...OR ABOUT 13 MILES
  SOUTH OF RICE LAKE...AND MOVING SOUTHEAST AT 30 MPH.

* SOME LOCATIONS INCLUDE...
  CHETEK...
  SAND CREEK...
  NEW AUBURN...
  BLOOMER...
  CORNELL...
  JIM FALLS...
  CHIPPEWA FALLS...
  LAKE WISSOTA...

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.

LAT...LON 4516 9094 4487 9134 4514 9181 4524 9188
      4541 9178 4536 9154 4530 9154 4530 9135
TIME...MOT...LOC 2031Z 308DEG 27KT 4529 9175

$$

TRH
1 follow-up statement
000 
WWUS53 KMPX 252053
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
353 PM CDT FRI JUL 25 2008

WIC005-033-252103-
/O.CAN.KMPX.SV.W.0229.000000T0000Z-080725T2130Z/
BARRON WI-DUNN WI-
353 PM CDT FRI JUL 25 2008

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN DUNN AND
SOUTHEASTERN BARRON COUNTIES IS CANCELLED...

RADAR INDICATED THAT THE SEVERE STORM HAD MOVED OUT OF THE WARNED 
AREA. THEREFORE...THE SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CDT FRIDAY
EVENING FOR NORTHWESTERN WISCONSIN.

LAT...LON 4487 9134 4504 9164 4521 9167 4522 9155
      4530 9154 4530 9135 4527 9130 4527 9126
      4523 9118 4516 9094
TIME...MOT...LOC 2053Z 308DEG 27KT 4519 9157

$$

WIC017-252130-
/O.CON.KMPX.SV.W.0229.000000T0000Z-080725T2130Z/
CHIPPEWA WI-
353 PM CDT FRI JUL 25 2008

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR CHIPPEWA COUNTY...

AT 348 PM CDT...RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM...
CAPABLE OF PRODUCING NICKEL SIZE HAIL AND DAMAGING WINDS IN EXCESS OF
60 MPH.  THE SEVERE STORM WAS LOCATED NEAR NEW AUBURN...OR ABOUT 2
MILES NORTHWEST OF NEW AUBURN...AND MOVING SOUTHEAST AT 30 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE JIM FALLS...EAGLETON...
BATEMAN...NEW AUBURN...LAKE WISSOTA...CORNELL...CHIPPEWA FALLS AND
BLOOMER.

PREPARE IMMEDIATELY FOR DAMAGING WINDS AND LARGE HAIL. SEEK SHELTER
NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.

REPORT ANY DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY...FOR RELAY
TO THE NATIONAL WEATHER SERVICE.

LAT...LON 4487 9134 4504 9164 4521 9167 4522 9155
      4530 9154 4530 9135 4527 9130 4527 9126
      4523 9118 4516 9094
TIME...MOT...LOC 2053Z 308DEG 27KT 4519 9157

$$

TRH

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 25, 2:16 PM CDTSevere Thunderstorm WarningMPXPolk41 min
Jul 25, 3:36 PM CDTSevere Thunderstorm WarningMPXSaint Croix54 min
Jul 25, 3:51 PM CDTSevere Thunderstorm WarningMPXPierce, Saint Croix54 min
Jul 25, 4:22 PM CDTSevere Thunderstorm WarningMPXChippewa38 min
Jul 25, 4:45 PM CDTSevere Thunderstorm WarningMPXPepin, Pierce45 min
Jul 25, 5:35 PM CDTSevere Thunderstorm WarningMPXPierce25 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 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.