Alert archive / Wisconsin / Tornado Warnings in 2015

Tornado Warning 27, NWS Twin Cities, MN

July 24, 2015Barron County, Chippewa County, Dunn County, Wisconsin

NWS Twin Cities, MN issued this tornado warning at Jul 24, 2015, 9:39 PM CDT for Barron County, Chippewa County, Dunn County, Wisconsin. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 24, 2015, 9:39 PM CDT (02:39 UTC)
Expired
Jul 24, 2015, 10:15 PM CDT
In force
36 min
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Barron County, WI, Chippewa County, WI, Dunn County, WI

The radar

The La Crosse radar (KARX), 151 km from the middle of the area, began a volume at 02:40 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.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 2.7 hours before the alert went out and 160 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 00:00Z on 2015-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1268 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 00:00Z on 2015-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 square meters per square second.19395878Sfc1 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
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.

193 
WFUS53 KMPX 250239
TORMPX
WIC005-017-033-250315-
/O.NEW.KMPX.TO.W.0027.150725T0239Z-150725T0315Z/

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

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* TORNADO WARNING FOR...
  WEST CENTRAL CHIPPEWA COUNTY IN WEST CENTRAL WISCONSIN...
  NORTHEASTERN DUNN COUNTY IN WEST CENTRAL WISCONSIN...
  SOUTHEASTERN BARRON COUNTY IN NORTHWESTERN WISCONSIN...

* UNTIL 1015 PM CDT
    
* AT 939 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED OVER SAND CREEK...OR 20 MILES SOUTH OF RICE
  LAKE...MOVING SOUTHEAST AT 20 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...
  NEW AUBURN AROUND 955 PM CDT.
  BLOOMER AROUND 1015 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE SAND
CREEK.

THIS INCLUDES U.S. HIGHWAY 53 BETWEEN MILE MARKERS 107 AND 121.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS...IN A
MOBILE HOME...OR IN A VEHICLE...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4519 9175 4525 9165 4519 9140 4504 9147
      4504 9163
TIME...MOT...LOC 0239Z 306DEG 16KT 4520 9169 

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

$$

JPC
1 follow-up statement
516 
WWUS53 KMPX 250258
SVSMPX

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

WIC005-033-250307-
/O.CAN.KMPX.TO.W.0027.000000T0000Z-150725T0315Z/
DUNN WI-BARRON WI-
958 PM CDT FRI JUL 24 2015

...THE TORNADO WARNING FOR NORTHEASTERN DUNN AND SOUTHEASTERN BARRON
COUNTIES IS CANCELLED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT 
OF THE WARNED AREA. THEREFORE...THE TORNADO WARNING FOR NORTHEASTERN 
DUNN AND SOUTHEASTERN BARRON COUNTIES HAS BEEN CANCELLED.

LAT...LON 4516 9162 4520 9157 4517 9142 4504 9147
      4506 9161
TIME...MOT...LOC 0257Z 304DEG 18KT 4514 9156 

$$

WIC017-250315-
/O.CON.KMPX.TO.W.0027.000000T0000Z-150725T0315Z/
CHIPPEWA WI-
958 PM CDT FRI JUL 24 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT FOR WEST
CENTRAL CHIPPEWA COUNTY...
    
AT 957 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR NEW AUBURN...OR 20 MILES NORTH OF EAU CLAIRE...
MOVING SOUTHEAST AT 20 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...
  BLOOMER AROUND 1010 PM CDT.

THIS INCLUDES U.S. HIGHWAY 53 BETWEEN MILE MARKERS 107 AND 118.
 
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.

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 4516 9162 4520 9157 4517 9142 4504 9147
      4506 9161
TIME...MOT...LOC 0257Z 304DEG 18KT 4514 9156 

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

$$

JPC

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 24, 8:44 PM CDTSpecial Weather StatementMPXBarron31 min
Jul 24, 9:19 PM CDTSpecial Weather StatementMPXChippewa56 min
Jul 24, 10:14 PM CDTTornado WarningMPXChippewa31 min
Jul 24, 10:22 PM CDTSpecial Weather StatementMPXChippewa, Dunn, Eau Claire38 min
Jul 24, 10:38 PM CDTTornado WarningMPXEau Claire52 min

Nearby

Tornado Warnings in Wisconsin, 2015Every tornado warning in 2015Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.