Alert archive / Wisconsin / Tornado Warnings in 2006

Tornado Warning 27, NWS Twin Cities, MN

October 3, 2006Eau Claire County, Pepin County, Wisconsin

NWS Twin Cities, MN issued this tornado warning at Oct 3, 2006, 8:03 PM CDT for Eau Claire County, Pepin 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: Oct 3, 2006, 8:03 PM CDT (01:03 UTC)
Expired: Oct 3, 2006, 8:45 PM CDT
In force: 42 min
Issued by: NWS Twin Cities, MN
Area: Counties, with a storm outline in the text

Counties Eau Claire County, WI, Pepin County, WI

The radar

The La Crosse radar (KARX), 102 km from the middle of the area, began a volume at 01:03 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

Time	Report	Where	Remark
Oct 3, 8:21 PM CDT	HAIL 1	12 S Eau Claire, 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.

Issued	Product	Office	Lasted
Oct 3, 3:34 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 1.1 hours before the alert went out and 166 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 746 J/kg
Mixed-layer CIN: -217 J/kg
Mixed-layer LCL: 880 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 296 m²/s²
0-3 km storm-relative helicity: 530 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 23.9

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KMPX 040103
TORMPX
WIC035-091-040145-
/O.NEW.KMPX.TO.W.0027.061004T0103Z-061004T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
803 PM CDT TUE OCT 3 2006

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  EAU CLAIRE COUNTY IN WEST CENTRAL WISCONSIN...
  PEPIN COUNTY IN WEST CENTRAL WISCONSIN...

* UNTIL 845 PM CDT

* AT 759 PM CDT...RADAR INDICATED A STORM CAPABLE OF PRODUCING A
  TORNADO. THE MOST DANGEROUS PART OF THE STORM WAS 13 MILES
  SOUTHWEST OF EAU CLAIRE...OR ABOUT 12 MILES NORTH OF MONDOVI...AND
  MOVING EAST AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  EAU CLAIRE...
  ALTOONA...
  FALL CREEK...
  AUGUSTA...

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.

LAT...LON 4483 9166 4468 9167 4467 9183 4461 9186
      4459 9093 4479 9094

$$

JPR

3 follow-up statements

000 
WWUS53 KMPX 040119
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
818 PM CDT TUE OCT 3 2006

WIC035-091-040145-
/O.CON.KMPX.TO.W.0027.000000T0000Z-061004T0145Z/
EAU CLAIRE WI-PEPIN WI-
818 PM CDT TUE OCT 3 2006

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM CDT FOR PEPIN 
AND EAU CLAIRE COUNTIES IN WEST CENTRAL WISCONSIN...

AT 815 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM WITH STRONG ROTATION.   THE SEVERE THUNDERSTORM WAS
LOCATED 10 MILES WEST OF ALLEN...OR ABOUT 7 MILES NORTHEAST OF 
MONDOVI...AND MOVING SOUTHEAST AT 45 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE ALLEN AND FOSTER.

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.

IN ADDITION TO THE POSSIBLE TORNADO...HAIL TO THE SIZE OF GOLF BALLS 
IS LIKELY WITH THIS STORM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT WEDNESDAY
MORNING FOR SOUTHERN MINNESOTA AND WEST CENTRAL WISCONSIN.

LAT...LON 4475 9165 4468 9167 4467 9178 4460 9177
      4459 9093 4469 9093

$$

JPR/MDB

000 
WWUS53 KMPX 040136
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
835 PM CDT TUE OCT 3 2006

WIC035-091-040145-
/O.CON.KMPX.TO.W.0027.000000T0000Z-061004T0145Z/
EAU CLAIRE WI-PEPIN WI-
835 PM CDT TUE OCT 3 2006

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 845 PM CDT FOR PEPIN 
AND EAU CLAIRE COUNTIES IN WEST CENTRAL WISCONSIN...

AT 832 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM WITH STRONG ROTATION.   THE SEVERE THUNDERSTORM WAS
LOCATED NEAR ALLEN...OR ABOUT 15 MILES EAST OF MONDOVI...AND MOVING
EAST AT 45 MPH.

LOCATIONS IN THE PATH INCLUDE AREAS JUST SOUTH OF FOSTER. NUMEROUS 
REPORTS OF HAIL UP TO THE SIZE OF QUARTERS HAVE BEEN RECEIVED 
BETWEEN 815 AND 830 PM CDT.

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT WEDNESDAY
MORNING FOR SOUTHERN MINNESOTA AND WEST CENTRAL WISCONSIN.

LAT...LON 4475 9165 4468 9167 4467 9178 4460 9177
      4459 9093 4469 9093

$$

JPR/MDB

000 
WWUS53 KMPX 040142
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
841 PM CDT TUE OCT 3 2006

WIC035-091-040151-
/O.EXP.KMPX.TO.W.0027.000000T0000Z-061004T0145Z/
EAU CLAIRE WI-PEPIN WI-
841 PM CDT TUE OCT 3 2006

...THE TORNADO WARNING FOR PEPIN  AND EAU CLAIRE COUNTIES IN WEST
CENTRAL WISCONSIN EXPIRES AT 845 PM CDT...

HEAVY RAIN WILL CONTINUE ACROSS SOUTHEAST EAU CLAIRE COUNTY...WITH 
SMALL HAIL AND WIND GUSTS TO AROUND 45 MPH STILL POSSIBLE THROUGH 
915 PM CDT.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT WEDNESDAY
MORNING FOR SOUTHERN MINNESOTA AND WEST CENTRAL WISCONSIN.

LAT...LON 4475 9165 4468 9167 4467 9178 4460 9177
      4459 9093 4469 9093

$$

JPR/MDB

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 3, 7:09 PM CDT	Severe Thunderstorm Warning	MPX	Dunn	66 min
Oct 3, 7:23 PM CDT	Tornado Warning	MPX	Dunn, Saint Croix	52 min
Oct 3, 10:50 PM CDT	Severe Thunderstorm Warning	MPX	Dunn, Saint Croix	55 min
Oct 3, 11:44 PM CDT	Severe Thunderstorm Warning	MPX	Saint Croix	46 min
Oct 4, 2:29 PM CDT	Frost Advisory	MPX	Barron, Chippewa, Dunn, Eau Claire, Polk, Rusk and 1 more	15 hr

Nearby

Tornado Warnings in Wisconsin, 2006 Every tornado warning in 2006 Tornadoes in 2006

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.