Alert archive / Wisconsin / Tornado Warnings in 2007

Tornado Warning 15, NWS Twin Cities, MN

June 7, 2007Chippewa County, Dunn County, Wisconsin

NWS Twin Cities, MN issued this tornado warning at Jun 7, 2007, 12:48 PM CDT for Chippewa County, Dunn County, Wisconsin. It was in force for 42 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
Jun 7, 2007, 12:48 PM CDT (17:48 UTC)
Expired
Jun 7, 2007, 1:30 PM CDT
In force
42 min
Issued by
NWS Twin Cities, MN
Area
Counties, with a storm outline in the text

Counties Chippewa County, WI, Dunn County, WI

The radar

The Minneapolis radar (KMPX), 142 km from the middle of the area, began a volume at 17:50 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 7, 1:05 PM CDTHAIL 0.751 S Sand Creek, WI

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
Jun 7, 11:34 AM CDTTornado Watch PDSSPC10 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 5.8 hours before the alert went out and 145 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 2007-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 72 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 2007-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.1939587897Sfc1 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
72 J/kg
Mixed-layer CIN
-470 J/kg
Mixed-layer LCL
1082 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
70 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 
WFUS53 KMPX 071748
TORMPX
WIC017-033-071830-
/O.NEW.KMPX.TO.W.0015.070607T1748Z-070607T1830Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1248 PM CDT THU JUN 7 2007

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  CHIPPEWA COUNTY IN WEST CENTRAL WISCONSIN...
  DUNN COUNTY IN WEST CENTRAL WISCONSIN...

* UNTIL 130 PM CDT

* AT 1246 PM CDT...RADAR INDICATED A DEVELOPING TORNADO. THE MOST
  DANGEROUS PART OF THE STORM WAS 6 MILES SOUTHWEST OF TAINTER
  LAKE...OR ABOUT 8 MILES SOUTHEAST OF BOYCEVILLE...AND MOVING
  NORTHEAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  WHEELER...
  TAINTER LAKE...
  COLFAX...
  SAND CREEK...
  BLOOMER...
  NEW AUBURN...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 4497 9211 4488 9198 4498 9162 4500 9148
      4519 9147 4521 9170

$$
5 follow-up statements
000 
WWUS53 KMPX 071755
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1254 PM CDT THU JUN 7 2007

WIC017-033-071830-
/O.CON.KMPX.TO.W.0015.000000T0000Z-070607T1830Z/
CHIPPEWA WI-DUNN WI-
1254 PM CDT THU JUN 7 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 130 PM CDT FOR DUNN AND
CHIPPEWA COUNTIES...

AT 1254 PM CDT...A WELL DEFINED LOWERING...WITH WEAK ROTATION...WAS 
REPORTED NORTH OF MENOMONIE.

AT 1250 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE 
THUNDERSTORM WITH STRONG ROTATION...CAPABLE OF PRODUCING A TORNADO. 
THE SEVERE THUNDERSTORM WAS LOCATED 3 MILES SOUTHWEST OF TAINTER 
LAKE...OR ABOUT 8 MILES WEST OF COLFAX...AND MOVING NORTHEAST AT 40 
MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE SAND CREEK...WHEELER...TAINTER
LAKE...NEW AUBURN...COLFAX AND BLOOMER. THE STORM IS LOCATED NORTH 
OF INTERSTATE 94.

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 4500 9199 4490 9192 4498 9162 4500 9148
      4519 9147 4521 9170

$$
000 
WWUS53 KMPX 071801
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
101 PM CDT THU JUN 7 2007

WIC017-033-071830-
/O.CON.KMPX.TO.W.0015.000000T0000Z-070607T1830Z/
CHIPPEWA WI-DUNN WI-
101 PM CDT THU JUN 7 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 130 PM CDT FOR DUNN AND
CHIPPEWA COUNTIES...

AT 1254 PM CDT...VISIBLE ROTATION WAS REPORTED NORTH OF MENOMONIE.

AT 1259 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE 
THUNDERSTORM WITH STRONG ROTATION.   BASEBALL SIZE HAIL IS ALSO 
POSSIBLE WITH THIS STORM. THE SEVERE THUNDERSTORM WAS LOCATED 4 
MILES NORTHWEST OF COLFAX...OR ABOUT OVER COLFAX...AND MOVING 
NORTHEAST AT 50 MPH. 

OTHER LOCATIONS IN THE WARNING INCLUDE SAND CREEK...WHEELER...TAINTER
LAKE...NEW AUBURN...COLFAX AND BLOOMER.

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 4502 9195 4493 9188 4499 9162 4500 9148
      4519 9147 4521 9170

$$
000 
WWUS53 KMPX 071810
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
109 PM CDT THU JUN 7 2007

WIC017-033-071830-
/O.CON.KMPX.TO.W.0015.000000T0000Z-070607T1830Z/
CHIPPEWA WI-DUNN WI-
109 PM CDT THU JUN 7 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 130 PM CDT FOR DUNN AND
CHIPPEWA COUNTIES...

AT 107 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 
CAPABLE OF PRODUCING A TORNADO. THE SEVERE THUNDERSTORM WAS LOCATED 
6 MILES SOUTH OF SAND CREEK...OR ABOUT 6 MILES NORTH OF COLFAX...AND 
MOVING NORTHEAST AT 40 MPH.

IN ADDITION TO THE TORNADO THREAT...THIS STORM IS LIKELY PRODUCING 
BASEBALL SIZED HAIL. TAKE COVER IMMEDIATELY IF YOU ARE IN THE PATH 
OF THIS DANGEROUS STORM.

OTHER LOCATIONS IN THE WARNING INCLUDE SAND CREEK...NEW AUBURN AND
BLOOMER.

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 4510 9181 4505 9170 4510 9149 4516 9142
      4527 9138 4526 9154 4521 9155 4521 9170

$$
000 
WWUS53 KMPX 071815
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
114 PM CDT THU JUN 7 2007

WIC017-033-071830-
/O.CON.KMPX.TO.W.0015.000000T0000Z-070607T1830Z/
CHIPPEWA WI-DUNN WI-
114 PM CDT THU JUN 7 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 130 PM CDT FOR DUNN AND
CHIPPEWA COUNTIES...

AT 114 PM CDT...SIGNIFICANT ROTATION WAS REPORTED TO THE NORTHEAST 
OF COLFAX...VERY NEAR THE DUNN AND CHIPPEWA COUNTY LINE.

AT 107 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE 
THUNDERSTORM WITH STRONG ROTATION. THE SEVERE THUNDERSTORM WAS 
LOCATED 6 MILES SOUTH OF SAND CREEK...OR ABOUT 6 MILES NORTH OF 
COLFAX...AND MOVING NORTHEAST AT 40 MPH.

NEW AUBURN WILL BE VERY NEAR THE STRONGEST PORTION OF THE STORM. 
PEOPLE IN AND NEAR NEW AUBURN SHOULD TAKE COVER IMMEDIATELY.

OTHER LOCATIONS IN THE WARNING INCLUDE SAND CREEK AND NEW AUBURN.

THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. THIS
STORM IS CAPABLE OF PRODUCING STRONG TO VIOLENT TORNADOES. IF YOU ARE
IN THE PATH OF THIS TORNADO...TAKE COVER IMMEDIATELY

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 4521 9170 4509 9176 4503 9170 4511 9148
      4516 9142 4529 9137 4527 9154 4521 9155

$$
000 
WWUS53 KMPX 071821
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
121 PM CDT THU JUN 7 2007

WIC033-071831-
/O.CAN.KMPX.TO.W.0015.000000T0000Z-070607T1830Z/
DUNN WI-
121 PM CDT THU JUN 7 2007

...THE TORNADO WARNING FOR DUNN COUNTY IS CANCELLED...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT THURSDAY EVENING
FOR WEST CENTRAL WISCONSIN.

LAT...LON 4521 9166 4510 9164 4511 9148 4516 9142
      4529 9137 4527 9154 4521 9155

$$

WIC017-071830-
/O.CON.KMPX.TO.W.0015.000000T0000Z-070607T1830Z/
CHIPPEWA WI-
121 PM CDT THU JUN 7 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 130 PM CDT FOR CHIPPEWA
COUNTY...

AT 120 PM CDT...STRONG ROTATION WAS REPORTED TO THE SOUTHWEST OF NEW 
AUBURN.

AT 117 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM WITH STRONG ROTATION.   THE SEVERE THUNDERSTORM WAS
LOCATED NEAR NEW AUBURN...OR ABOUT 6 MILES NORTHWEST OF BLOOMER...AND
MOVING NORTHEAST AT 45 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE NEW AUBURN.

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

THIS TORNADO WARNING WILL LIKELY BE EXTENDED FOR NORTHERN CHIPPEWA 
COUNTY.

LAT...LON 4521 9166 4510 9164 4511 9148 4516 9142
      4529 9137 4527 9154 4521 9155

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 7, 3:26 AM CDTSevere Thunderstorm WarningMPXSaint Croix34 min
Jun 7, 3:47 AM CDTSevere Thunderstorm WarningMPXBarron, Polk43 min
Jun 7, 3:56 AM CDTSevere Thunderstorm WarningMPXDunn34 min
Jun 7, 4:14 AM CDTWind AdvisoryMPXBarron, Chippewa, Dunn, Eau Claire, Pepin, Pierce and 3 more17 hr
Jun 7, 4:35 AM CDTSevere Thunderstorm WarningMPXRusk40 min
Jun 7, 11:33 AM CDTSevere Thunderstorm WarningMPXPierce57 min
Jun 7, 11:45 AM CDTTornado WarningMPXPierce45 min
Jun 7, 12:19 PM CDTSevere Thunderstorm WarningMPXDunn, Saint Croix41 min
Jun 7, 1:11 PM CDTSevere Thunderstorm WarningMPXBarron25 min
Jun 7, 1:24 PM CDTTornado WarningMPXChippewa, Rusk51 min
Jun 7, 1:56 PM CDTTornado WarningMPXEau Claire34 min
Jun 7, 2:25 PM CDTTornado WarningMPXEau Claire22 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.