Alert archive / Wisconsin / Tornado Warnings in 2015

Tornado Warning 28, NWS Twin Cities, MN

July 24, 2015Chippewa County, Wisconsin

NWS Twin Cities, MN issued this tornado warning at Jul 24, 2015, 10:14 PM CDT for Chippewa County, Wisconsin. It was in force for 31 min. 2 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 24, 2015, 10:14 PM CDT (03:14 UTC)
Expired: Jul 24, 2015, 10:45 PM CDT
In force: 31 min
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Chippewa County, WI

The radar

The La Crosse radar (KARX), 126 km from the middle of the area, began a volume at 03:18 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
Jul 24, 10:20 PM CDT	TSTM WND DMG	5 N Chippewa Falls, WI	TREES AND FENCES REPORTED DOWN.
Jul 24, 10:25 PM CDT	TSTM WND DMG	Chippewa Falls, WI	TREES AND POWER LINES DOWN.

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

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 3.2 hours before the alert went out and 179 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: 1268 J/kg
Mixed-layer CIN: -33 J/kg
Mixed-layer LCL: 1246 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: 72 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.9

Open this sounding in Storm Lab

The text

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

928 
WFUS53 KMPX 250314
TORMPX
WIC017-250345-
/O.NEW.KMPX.TO.W.0028.150725T0314Z-150725T0345Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1014 PM CDT FRI JUL 24 2015

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

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

* UNTIL 1045 PM CDT
    
* AT 1014 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED OVER TILDEN...OR 12 MILES NORTH OF EAU
  CLAIRE...MOVING SOUTHEAST AT 25 MPH.

  HAZARD...TORNADO. 

  SOURCE...RADAR INDICATED ROTATION. 

  IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
           SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. 
           DAMAGE TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE 
           DAMAGE IS LIKELY. 

* THIS DANGEROUS STORM WILL BE NEAR...
  CHIPPEWA FALLS AROUND 1030 PM CDT.
  LAKE WISSOTA AROUND 1040 PM CDT.
  EAU CLAIRE AND CADOTT AROUND 1045 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
TILDEN...EAGLETON AND BATEMAN.

THIS INCLUDES U.S. HIGHWAY 53 BETWEEN MILE MARKERS 93 AND 109.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORNADOES ARE EXTREMELY DIFFICULT TO SEE AND CONFIRM AT NIGHT. DO NOT
WAIT TO SEE OR HEAR THE TORNADO. TAKE COVER NOW.

TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
THE TWIN CITIES.

&&

LAT...LON 4486 9118 4486 9146 4506 9159 4512 9142
      4495 9115
TIME...MOT...LOC 0314Z 322DEG 21KT 4504 9146 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

JPC

2 follow-up statements

090 
WWUS53 KMPX 250330
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1030 PM CDT FRI JUL 24 2015

WIC017-250345-
/O.CON.KMPX.TO.W.0028.000000T0000Z-150725T0345Z/
CHIPPEWA WI-
1030 PM CDT FRI JUL 24 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT FOR
SOUTHWESTERN CHIPPEWA COUNTY...
    
AT 1028 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED OVER LAKE WISSOTA...OR NEAR EAU CLAIRE...MOVING SOUTHEAST
AT 35 MPH.

HAZARD...TORNADO. 

SOURCE...RADAR INDICATED ROTATION. 

IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT 
         SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE 
         TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR.  TREE DAMAGE IS 
         LIKELY. 

THIS DANGEROUS STORM WILL BE NEAR...
  LAKE WISSOTA AROUND 1040 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE 
EASTERN PORTIONS OF CHIPPEWA FALLS...TILDEN AND BATEMAN.

THIS INCLUDES U.S. HIGHWAY 53 BETWEEN MILE MARKERS 93 AND 103.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.

TORNADOES ARE EXTREMELY DIFFICULT TO SEE AND CONFIRM AT NIGHT. DO NOT
WAIT TO SEE OR HEAR THE TORNADO. TAKE COVER NOW.

IF A TORNADO OR OTHER SEVERE WEATHER IS SPOTTED...REPORT IT TO THE
NATIONAL WEATHER SERVICE OR YOUR LOCAL NEAREST LAW ENFORCEMENT AGENCY
WHO WILL SEND YOUR REPORT. THIS ACT MAY SAVE LIVES OF OTHERS IN THE
PATH OF DANGEROUS WEATHER.

&&

LAT...LON 4486 9118 4486 9146 4498 9154 4506 9133
      4495 9115
TIME...MOT...LOC 0328Z 318DEG 30KT 4493 9134 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

JPC

790 
WWUS53 KMPX 250348
SVSMPX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1048 PM CDT FRI JUL 24 2015

WIC017-250357-
/O.EXP.KMPX.TO.W.0028.000000T0000Z-150725T0345Z/
CHIPPEWA WI-
1048 PM CDT FRI JUL 24 2015

...THE TORNADO WARNING FOR SOUTHWESTERN CHIPPEWA COUNTY HAS
EXPIRED...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA. 
THEREFORE THE TORNADO WARNING FOR SOUTHWESTERN CHIPPEWA COUNTY HAS 
BEEN ALLOWED TO EXPIRE. 
 
HEAVY RAIN IS STILL EXPECTED WITH THIS THUNDERSTORM WHICH MAY LEAD 
TO LOCALIZED FLOODING.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
THE TWIN CITIES.

LAT...LON 4486 9118 4486 9146 4498 9154 4506 9133
      4495 9115
TIME...MOT...LOC 0345Z 322DEG 21KT 4493 9134 

$$

JPC

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 24, 8:44 PM CDT	Special Weather Statement	MPX	Barron	31 min
Jul 24, 9:19 PM CDT	Special Weather Statement	MPX	Chippewa	56 min
Jul 24, 9:39 PM CDT	Tornado Warning	MPX	Barron, Chippewa, Dunn	36 min
Jul 24, 10:22 PM CDT	Special Weather Statement	MPX	Chippewa, Dunn, Eau Claire	38 min
Jul 24, 10:38 PM CDT	Tornado Warning	MPX	Eau Claire	52 min

Nearby

Tornado Warnings in Wisconsin, 2015 Every tornado warning in 2015 Tornadoes in 2015

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.