Alert archive / Wisconsin / Tornado Warnings in 2013

Tornado Warning 23, NWS La Crosse, WI

June 12, 2013Grant County, Wisconsin

NWS La Crosse, WI issued this tornado warning at Jun 12, 2013, 4:38 PM CDT for Grant County, Wisconsin. It was in force for 37 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
Jun 12, 2013, 4:38 PM CDT (21:38 UTC)
Expired
Jun 12, 2013, 5:15 PM CDT
In force
37 min
Issued by
NWS La Crosse, WI
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Grant County, WI

The radar

The La Crosse radar (KARX), 96 km from the middle of the area, began a volume at 21:38 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 12, 1:49 PM CDTTornado Watch PDSSPC9 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 9.6 hours before the alert went out and 162 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 2013-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1812 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 2013-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 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
1812 J/kg
Mixed-layer CIN
-167 J/kg
Mixed-layer LCL
1138 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
185 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

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

593 
WFUS53 KARX 122138
TORARX
WIC043-122215-
/O.NEW.KARX.TO.W.0023.130612T2138Z-130612T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
438 PM CDT WED JUN 12 2013

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

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

* UNTIL 515 PM CDT

* AT 434 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 5 MILES SOUTHEAST OF BOSCOBEL...AND MOVING EAST
  AT 20 MPH.

  HAZARD...TORNADO.

  SOURCE...RADAR INDICATED ROTATION.

  IMPACT...MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE TO
           ROOFS...WINDOWS AND VEHICLES WILL OCCUR. FLYING DEBRIS
           WILL BE DEADLY TO PEOPLE AND ANIMALS. TREE DAMAGE IS
           LIKELY.

* THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF NORTHEASTERN
  GRANT COUNTY...INCLUDING THE FOLLOWING LOCATIONS...CASTLE ROCK AND
  RED OAK RIDGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4304 9073 4317 9067 4316 9042 4297 9043
TIME...MOT...LOC 2138Z 271DEG 17KT 4309 9061

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

$$

AJ
2 follow-up statements
693 
WWUS53 KARX 122157
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
457 PM CDT WED JUN 12 2013

WIC043-122215-
/O.CON.KARX.TO.W.0023.000000T0000Z-130612T2215Z/
GRANT WI-
457 PM CDT WED JUN 12 2013

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN GRANT COUNTY
UNTIL 515 PM CDT...

AT 452 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 8 MILES NORTHWEST OF HIGHLAND...AND MOVING EAST AT 20
MPH.

HAZARD...TORNADO AND QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED ROTATION.

IMPACT...MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE TO
         ROOFS...WINDOWS AND VEHICLES WILL OCCUR. FLYING DEBRIS WILL
         BE DEADLY TO PEOPLE AND ANIMALS. TREE DAMAGE IS LIKELY.

LOCATIONS IMPACTED INCLUDE...
RED OAK RIDGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4304 9073 4317 9067 4316 9042 4297 9043
TIME...MOT...LOC 2157Z 271DEG 17KT 4309 9049

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

AJ
609 
WWUS53 KARX 122214
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
514 PM CDT WED JUN 12 2013

WIC043-122224-
/O.EXP.KARX.TO.W.0023.000000T0000Z-130612T2215Z/
GRANT WI-
514 PM CDT WED JUN 12 2013

...THE TORNADO WARNING FOR NORTHEASTERN GRANT COUNTY WILL EXPIRE AT
515 PM CDT...

THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS
EXPIRED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT 
FOR THE AREA UNTIL 530 PM.

ADDITIONAL SEVERE THUNDERSTORMS ARE STILL POSSIBLE THROUGH THE 
EVENING...AND A TORNADO WATCH REMAINS IN EFFECT UNTIL 9 PM.

LAT...LON 4304 9073 4317 9067 4316 9042 4297 9043
TIME...MOT...LOC 2214Z 271DEG 17KT 4309 9038

$$

AJ

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 3:55 PM CDTSevere Thunderstorm WarningARXCrawford, Grant65 min
Jun 12, 4:05 PM CDTTornado WarningARXGrant25 min
Jun 12, 4:29 PM CDTTornado WarningARXGrant46 min
Jun 12, 4:35 PM CDTSevere Thunderstorm WarningARXGrant, Richland55 min
Jun 12, 5:48 PM CDTAreal Flood AdvisoryARXAdams, Juneau3 hr

Nearby

Tornado Warnings in Wisconsin, 2013Every tornado warning in 2013Tornadoes in 2013

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.