Alert archive / Wisconsin / Tornado Warnings in 2013

Tornado Warning 5, NWS Milwaukee, WI

June 12, 2013Iowa County, Wisconsin

NWS Milwaukee, WI issued this tornado warning at Jun 12, 2013, 4:44 PM CDT for Iowa County, Wisconsin. It was in force for 46 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, 4:44 PM CDT (21:44 UTC)
Expired
Jun 12, 2013, 5:30 PM CDT
In force
46 min
Issued by
NWS Milwaukee, WI
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

County Iowa County, WI

The radar

The La Crosse radar (KARX), 109 km from the middle of the area, began a volume at 21:48 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, 9.7 hours before the alert went out and 164 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.

102 
WFUS53 KMKX 122144
TORMKX
WIC049-122230-
/O.NEW.KMKX.TO.W.0005.130612T2144Z-130612T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
444 PM CDT WED JUN 12 2013

THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHWESTERN IOWA COUNTY IN SOUTH CENTRAL WISCONSIN...

* UNTIL 530 PM CDT

* AT 438 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 11 MILES SOUTHWEST OF MUSCODA...AND MOVING EAST
  AT 25 MPH.

  HAZARD...DEVELOPING TORNADO...QUARTER SIZE HAIL AND 60 MPH WIND
           GUSTS.

  SOURCE...RADAR INDICATED ROTATION.

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

  IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
  QUARTER SIZE HAIL.   

* THIS DANGEROUS STORM WILL BE NEAR...
  BLACKHAWK LAKE RECREATION AREA AROUND 505 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
HIGHLAND AND BLACKHAWK LAKE REC AREA.

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 4298 9043 4318 9043 4319 9033 4318 9022
      4317 9019 4316 9018 4316 9017 4293 9018
      4297 9044
TIME...MOT...LOC 2144Z 274DEG 24KT 4309 9055

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

$$

WOOD
4 follow-up statements
798 
WWUS53 KMKX 122154
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
454 PM CDT WED JUN 12 2013

WIC049-122230-
/O.CON.KMKX.TO.W.0005.000000T0000Z-130612T2230Z/
IOWA WI-
454 PM CDT WED JUN 12 2013

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN IOWA COUNTY
UNTIL 530 PM CDT...

AT 452 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 7 MILES NORTHWEST OF BLACKHAWK LAKE RECREATION AREA...AND
MOVING EAST AT 20 MPH.

HAZARD...DEVELOPING TORNADO AND QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED ROTATION.

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

THIS DANGEROUS STORM WILL BE NEAR...
  BLACKHAWK LAKE RECREATION AREA AROUND 510 PM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE HIGHLAND AND BLACKHAWK LAKE
REC AREA.

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 4298 9043 4318 9043 4319 9033 4318 9022
      4317 9019 4316 9018 4316 9017 4293 9018
      4297 9044
TIME...MOT...LOC 2154Z 273DEG 18KT 4309 9049

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

$$

MEB
743 
WWUS53 KMKX 122205
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
505 PM CDT WED JUN 12 2013

WIC049-122230-
/O.CON.KMKX.TO.W.0005.000000T0000Z-130612T2230Z/
IOWA WI-
505 PM CDT WED JUN 12 2013

...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWESTERN IOWA COUNTY
UNTIL 530 PM CDT...

AT 501 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 
WAS LOCATED NEAR HIGHLAND...AND MOVING EAST AT 25 MPH.

HAZARD...DEVELOPING TORNADO AND QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED ROTATION.

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

THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF NORTHWESTERN
IOWA COUNTY...INCLUDING THE FOLLOWING LOCATIONS BLACKHAWK LAKE REC
AREA.

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 4314 9042 4317 9019 4316 9018 4316 9017
      4293 9018 4300 9043
TIME...MOT...LOC 2203Z 280DEG 20KT 4306 9041

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

$$

MEB
173 
WWUS53 KMKX 122215
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
515 PM CDT WED JUN 12 2013

WIC049-122230-
/O.CON.KMKX.TO.W.0005.000000T0000Z-130612T2230Z/
IOWA WI-
515 PM CDT WED JUN 12 2013

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL IOWA COUNTY UNTIL
530 PM CDT...

AT 511 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR BLACKHAWK LAKE RECREATION AREA...AND MOVING EAST AT
25 MPH.

HAZARD...DEVELOPING TORNADO.

SOURCE...RADAR INDICATED ROTATION.

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

THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF WEST CENTRAL 
IOWA COUNTY...INCLUDING THE FOLLOWING LOCATIONS BLACKHAWK LAKE REC 
AREA AND EDMUND.

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 4307 9038 4311 9017 4293 9018 4300 9038
TIME...MOT...LOC 2214Z 288DEG 20KT 4304 9033

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

$$

MEB
112 
WWUS53 KMKX 122224
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
524 PM CDT WED JUN 12 2013

WIC049-122234-
/O.EXP.KMKX.TO.W.0005.000000T0000Z-130612T2230Z/
IOWA WI-
524 PM CDT WED JUN 12 2013

...THE TORNADO WARNING FOR CENTRAL IOWA COUNTY WILL EXPIRE AT 530 PM
CDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE 
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR 
PROPERTY. HOWEVER HEAVY RAIN IS STILL POSSIBLE WITH THIS 
THUNDERSTORM.

IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A TORNADO 
WATCH REMAINS IN EFFECT UNTIL 9 PM.

LAT...LON 4307 9038 4311 9017 4293 9018 4300 9038
TIME...MOT...LOC 2224Z 288DEG 20KT 4293 9030

$$

MEB

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 3:08 PM CDTSmall Craft AdvisoryMKX24 hr
Jun 12, 4:21 PM CDTAreal Flood AdvisoryMKXColumbia, Dane, Dodge, Fond du Lac, Green Lake, Iowa and 5 more4 hr
Jun 12, 4:59 PM CDTSevere Thunderstorm WarningMKXColumbia, Green Lake, Marquette, Sauk46 min
Jun 12, 5:30 PM CDTSevere Thunderstorm WarningMKXColumbia, Dane, Dodge, Fond du Lac, Green Lake60 min
Jun 12, 5:56 PM CDTAreal Flood AdvisoryMKXDane, Green, Jefferson, Kenosha, Lafayette, Milwaukee and 6 more3 hr
Jun 12, 6:02 PM CDTSevere Thunderstorm WarningMKXColumbia, Dane, Dodge, Green, Jefferson, Rock and 3 more58 min
Jun 12, 6:07 PM CDTSevere Thunderstorm WarningMKXWalworth38 min
Jun 12, 6:52 PM CDTSpecial Marine WarningMKX113 min
Jun 12, 6:52 PM CDTSevere Thunderstorm WarningMKXDodge, Jefferson, Kenosha, Milwaukee, Ozaukee, Racine and 4 more53 min

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.