Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 233, NWS Twin Cities, MN

July 8, 2007Chippewa County, Dunn County, Rusk County, Wisconsin

NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 8, 2007, 4:06 PM CDT for Chippewa County, Dunn County, Rusk County, Wisconsin. It was in force for 54 min. 3 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 8, 2007, 4:06 PM CDT (21:06 UTC)
Expired
Jul 8, 2007, 5:00 PM CDT
In force
54 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

Counties Chippewa County, WI, Dunn County, WI, Rusk County, WI

The radar

The La Crosse radar (KARX), 164 km from the middle of the area, began a volume at 21:08 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 8, 4:06 PM CDTHAIL 1Weyerhaeuser, WI
Jul 8, 4:15 PM CDTHAIL 0.75Menomonie, WIDIME TO NICKEL HAIL BETWEEN 410 TO 415 PM.
Jul 8, 4:25 PM CDTTSTM WND DMG8 E New Auburn, WIFEW TREES 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 8, 1:28 PM CDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 9.1 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, Minneapolis, MN at 12:00Z on 2007-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 432 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 2007-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 208 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
432 J/kg
Mixed-layer CIN
-564 J/kg
Mixed-layer LCL
2355 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
208 m²/s²
0-3 km storm-relative helicity
107 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KMPX 082106
SVRMPX
WIC017-033-107-082200-
/O.NEW.KMPX.SV.W.0233.070708T2106Z-070708T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
406 PM CDT SUN JUL 8 2007

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  RUSK COUNTY IN NORTHWEST WISCONSIN...
  CHIPPEWA COUNTY IN WEST CENTRAL WISCONSIN...
  DUNN COUNTY IN WEST CENTRAL WISCONSIN...

* UNTIL 500 PM CDT

* AT 402 PM CDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
  THUNDERSTORMS...CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED
  ALONG A LINE EXTENDING FROM 4 MILES NORTH OF BRUCE TO 5 MILES WEST
  OF MENOMONIE...AND MOVING EAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BRUCE...
  MENOMONIE...
  COLFAX...
  LADYSMITH...
  BLOOMER...
  ELK MOUND...
  CORNELL...
  CHIPPEWA FALLS...
  LAKE WISSOTA...

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE
SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED.

STAY INDOORS...AND AWAY FROM WINDOWS.

LAT...LON 4562 9148 4524 9153 4486 9211 4489 9099
      4527 9100 4558 9071

$$

JPR
2 follow-up statements
000 
WWUS53 KMPX 082122
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
422 PM CDT SUN JUL 8 2007

WIC017-033-107-082200-
/O.CON.KMPX.SV.W.0233.000000T0000Z-070708T2200Z/
RUSK WI-CHIPPEWA WI-DUNN WI-
422 PM CDT SUN JUL 8 2007

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM CDT
FOR DUNN...CHIPPEWA AND RUSK COUNTIES...

AT 410 PM CDT...NICKEL SIZE HAIL WAS REPORTED IN 
MENOMONIE WITH THIS STORM.

AT 418 PM CDT...   THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM 3 MILES EAST OF LADYSMITH TO 4 MILES WEST OF ELK MOUND...AND
MOVING EAST AT 45 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE JIM FALLS...ISLAND LAKE...
HOLCOMBE...EAGLETON...BATEMAN...WEYERHAEUSER...TONY...TAINTER LAKE...
NEW AUBURN AND MENOMONIE.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

LAT...LON 4562 9148 4524 9153 4486 9211 4489 9099
      4527 9100 4558 9071

$$

JPR
000 
WWUS53 KMPX 082157
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
456 PM CDT SUN JUL 8 2007

WIC017-033-107-082206-
/O.EXP.KMPX.SV.W.0233.000000T0000Z-070708T2200Z/
RUSK WI-CHIPPEWA WI-DUNN WI-
456 PM CDT SUN JUL 8 2007

...THE SEVERE THUNDERSTORM WARNING FOR DUNN...CHIPPEWA AND RUSK
COUNTIES EXPIRES AT 500 PM CDT...

SEVERE STORMS HAD WEAKENED AND WERE ABOUT TO MOVE OUT OF THE AREA. 
HOWEVER...ADDITIONAL THUNDERSTORMS WILL MOVE ACROSS THE AREA AND MAY 
PRODUCE SMALL HAIL AND HEAVY RAIN.

LAT...LON 4562 9148 4524 9153 4486 9211 4489 9099
      4527 9100 4558 9071

$$

JPR

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 2:24 PM CDTSevere Thunderstorm WarningMPXPolk51 min
Jul 8, 2:54 PM CDTSevere Thunderstorm WarningMPXSaint Croix66 min
Jul 8, 2:58 PM CDTSevere Thunderstorm WarningMPXBarron62 min
Jul 8, 3:14 PM CDTSevere Thunderstorm WarningMPXPolk46 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2007Every severe thunderstorm warning in 2007

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.