Alert archive / Wisconsin / Tornado Warnings in 2007

Tornado Warning 9, NWS La Crosse, WI

June 3, 2007Grant County, Wisconsin

NWS La Crosse, WI issued this tornado warning at Jun 3, 2007, 3:29 PM CDT for Grant County, Wisconsin. It was in force for 31 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
Jun 3, 2007, 3:29 PM CDT (20:29 UTC)
Expired
Jun 3, 2007, 4:00 PM CDT
In force
31 min
Issued by
NWS La Crosse, WI
Area
Counties, with a storm outline in the text

County Grant County, WI

The radar

The Quad Cities radar (KDVN), 112 km from the middle of the area, began a volume at 20:32 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
Jun 3, 3:30 PM CDTTORNADOPotosi, WITORNADO TOOK A ROOF OFF OF A SHED IN THE VILLAGE OF POTOSI ACROSS FROM THE SCHOOL
Jun 3, 3:35 PM CDTTORNADO2 S Tennyson, WIPUBLIC REPORTED THAT A TORNADO DAMAGED TREES ALONG ON LONG BRANCH ROAD
Jun 3, 3:59 PM CDTTORNADO2 W Cornelia, WISHERIFF DEPUTY OBSERVED A TORNADO TOUCH DOWN ON COUNTY ROAD O BETWEEN ELM AND OAK ROADS

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 8.5 hours before the alert went out and 112 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, Davenport, at 12:00Z on 2007-06-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 114 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, Davenport, at 12:00Z on 2007-06-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 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
114 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
903 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
44 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KARX 032030
TORARX
WIC043-032100-
/O.NEW.KARX.TO.W.0009.070603T2029Z-070603T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
329 PM CDT SUN JUN 3 2007

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN GRANT COUNTY IN SOUTHWEST WISCONSIN...

* UNTIL 400 PM CDT

* AT 326 PM CDT...LAW ENFORCEMENT REPORTED A TORNADO JUST SOUTH
  OF POTOSI NEAR THE INTERSECTION OF HIGHWAY 61 AND HIGHWAY 35
  MOVING SOUTHWEST AT 5 MPH.

TAKE COVER IN A BASEMENT OR IN AN INTERIOR ROOM ON THE LOWEST FLOOR
AND STAY AWAY FROM WINDOWS

LAT...LON 4248 9040 4279 9043 4278 9107 4269 9090
      4264 9071 4249 9064

$$

BOYNE
3 follow-up statements
000 
WWUS53 KARX 032041
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
341 PM CDT SUN JUN 3 2007

WIC043-032100-
/O.CON.KARX.TO.W.0009.000000T0000Z-070603T2100Z/
GRANT WI-
338 PM CDT SUN JUN 3 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR SOUTHERN
GRANT COUNTY...

AT 326 PM...LAW ENFORCEMENT REPORTED A TORNADO JUST SOUTH OF POTOSI 
NEAR THE INTERSECTION OF HIGHWAY 61 AND HIGHWAY 35.  

AT 335 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED NEAR SPECHTS FERRY...OR
9 MILES NORTH OF DUBUQUE...MOVING SOUTHEAST AT 25 MPH.

ADDITIONAL POSSIBLE TORNADOES WERE INDICATED BY RADAR JUST NORTHEAST 
DICKEYVILLE...AND MIDWAY BETWEEN DICKEYVILLE AND HAZEL GREEN.

TAKE COVER IN A BASEMENT OR IN AN INTERIOR ROOM ON THE LOWEST FLOOR
AND STAY AWAY FROM WINDOWS

LAT...LON 4248 9040 4279 9043 4278 9107 4269 9090
      4264 9071 4249 9064

$$

BOYNE
000 
WWUS53 KARX 032050
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
347 PM CDT SUN JUN 3 2007

WIC043-032100-
/O.CON.KARX.TO.W.0009.000000T0000Z-070603T2100Z/
GRANT WI-
347 PM CDT SUN JUN 3 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR SOUTHERN
GRANT COUNTY...

AT 326 PM CDT...LAW ENFORCEMENT REPORTED A TORNADO JUST SOUTH   OF 
POTOSI NEAR THE INTERSECTION OF HIGHWAY 61 AND HIGHWAY 35.

AT 344 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE TWO POSSIBLE TORNADOES. THE FIRST ONE WAS LOCATED 1 MILE 
SOUTHEAST OF SPECHTS FERRY. THE SECOND ONE WAS LOCATED 1 MILE WEST 
OF DICKEYVILLE. THESE POSSIBLE TORNADOES WERE MOVING SOUTHEAST AT 
25 MPH.

TAKE COVER IN A BASEMENT OR IN AN INTERIOR ROOM ON THE LOWEST FLOOR
AND STAY AWAY FROM WINDOWS

LAT...LON 4248 9040 4279 9043 4278 9107 4269 9090
      4264 9071 4249 9064

$$

BOYNE
000 
WWUS53 KARX 032057
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
353 PM CDT SUN JUN 3 2007

WIC043-032100-
/O.CON.KARX.TO.W.0009.000000T0000Z-070603T2100Z/
GRANT WI-
353 PM CDT SUN JUN 3 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR SOUTHERN
GRANT COUNTY...

AT 352 PM CDT...A TORNADO WAS INDICATED BY RADAR NEAR DICKEYVILLE 
MOVING SOUTHEAST AT 25 MPH. 

LAT...LON 4248 9040 4279 9043 4278 9107 4269 9090
      4264 9071 4249 9064

$$

BOYNE

The office that day

Everything else NWS La Crosse, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 3, 3:58 PM CDTTornado WarningARXGrant32 min

Nearby

Tornado Warnings in Wisconsin, 2007Every tornado warning in 2007Tornadoes 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.