Alert archive / Wisconsin / Tornado Warnings in 2015

Tornado Warning 5, NWS Milwaukee, WI

July 18, 2015Iowa County, Lafayette County, Wisconsin

NWS Milwaukee, WI issued this tornado warning at Jul 18, 2015, 1:08 PM CDT for Iowa County, Lafayette County, Wisconsin. It was in force for 52 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 18, 2015, 1:08 PM CDT (18:08 UTC)
Expired
Jul 18, 2015, 2:00 PM CDT
In force
52 min
Issued by
NWS Milwaukee, WI
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties Iowa County, WI, Lafayette County, WI

The radar

The Quad Cities radar (KDVN), 131 km from the middle of the area, began a volume at 18:08 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

Davenport, (KDVN), launched 12:00Z, 6.1 hours before the alert went out and 129 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 2015-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2984 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 2015-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -27 square meters per square second.193958Sfc1 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
2984 J/kg
Mixed-layer CIN
-64 J/kg
Mixed-layer LCL
858 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
-27 m²/s²
0-3 km storm-relative helicity
23 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.4

Open this sounding in Storm Lab

The text

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

247 
WFUS53 KMKX 181808
TORMKX
WIC049-065-181900-
/O.NEW.KMKX.TO.W.0005.150718T1808Z-150718T1900Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
108 PM CDT SAT JUL 18 2015

THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN IOWA COUNTY IN SOUTH CENTRAL WISCONSIN...
  NORTHERN LAFAYETTE COUNTY IN SOUTH CENTRAL WISCONSIN...

* UNTIL 200 PM CDT
    
* AT 107 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED OVER PLATTEVILLE...MOVING EAST AT 30 MPH.

  HAZARD...TORNADO AND QUARTER SIZE HAIL. 

  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. 

* LOCATIONS IMPACTED INCLUDE...
  MINERAL POINT...DARLINGTON...BELMONT...ARGYLE...SOMERS...WIOTA...
  LAMONT...HOLLANDALE...LESLIE...PLATTE MOUNDS...WOODFORD AND
  YELLOWSTONE LAKE ST PARK.

PEOPLE ATTENDING THE LAFAYETTE COUNTY FAIR SHOULD SEEK SAFE SHELTER
IMMEDIATELY!

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 4283 9043 4289 8988 4262 8986 4263 9042
TIME...MOT...LOC 1807Z 266DEG 28KT 4273 9048 

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

$$

SPM
2 follow-up statements
739 
WWUS53 KMKX 181823
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
123 PM CDT SAT JUL 18 2015

WIC049-065-181900-
/O.CON.KMKX.TO.W.0005.000000T0000Z-150718T1900Z/
IOWA WI-LAFAYETTE WI-
123 PM CDT SAT JUL 18 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 200 PM CDT FOR SOUTHERN
IOWA AND NORTHERN LAFAYETTE COUNTIES...
    
AT 121 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR BELMONT...OR NEAR PLATTEVILLE...MOVING EAST AT 25
MPH.

HAZARD...TORNADO AND QUARTER SIZE HAIL. 

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...
  BELMONT AROUND 130 PM CDT.
  DARLINGTON AROUND 155 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
LESLIE...LAMONT...PLATTE MOUNDS...SOMERS...WIOTA...WOODFORD...
HOLLANDALE AND YELLOWSTONE LAKE ST PARK.

PEOPLE ATTENDING THE LAFAYETTE COUNTY FAIR SHOULD SEEK SAFE SHELTER
IMMEDIATELY!

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 4283 9043 4289 8988 4262 8986 4263 9042
TIME...MOT...LOC 1821Z 270DEG 21KT 4272 9040 

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

$$

WOOD
188 
WWUS53 KMKX 181840
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
140 PM CDT SAT JUL 18 2015

WIC049-181850-
/O.CAN.KMKX.TO.W.0005.000000T0000Z-150718T1900Z/
IOWA WI-
140 PM CDT SAT JUL 18 2015

...THE TORNADO WARNING FOR SOUTHERN IOWA COUNTY IS CANCELLED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS REMAINED TO 
THE SOUTH OF THE WARNED AREA. THEREFORE THE WARNING HAS BEEN 
CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT FOR SOUTH CENTRAL
WISCONSIN.

LAT...LON 4278 9028 4280 9008 4281 8987 4262 8986
      4263 9033
TIME...MOT...LOC 1840Z 269DEG 24KT 4265 9023 

$$

WIC065-181900-
/O.CON.KMKX.TO.W.0005.000000T0000Z-150718T1900Z/
LAFAYETTE WI-
140 PM CDT SAT JUL 18 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 200 PM CDT FOR NORTHERN
LAFAYETTE COUNTY...
    
AT 140 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR SHULLSBURG...OR NEAR DARLINGTON...MOVING EAST AT 25
MPH.

HAZARD...TORNADO AND QUARTER SIZE HAIL. 

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...
  DARLINGTON AROUND 150 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
LAMONT...YELLOWSTONE LAKE ST PARK...SOMERS...WIOTA AND WOODFORD.

PEOPLE ATTENDING THE LAFAYETTE COUNTY FAIR SHOULD SEEK SAFE SHELTER
IMMEDIATELY!

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 4278 9028 4280 9008 4281 8987 4262 8986
      4263 9033
TIME...MOT...LOC 1840Z 269DEG 24KT 4265 9023 

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

$$

WOOD

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 18, 4:19 AM CDTSpecial Weather StatementMKXColumbia, Green Lake, Iowa, Marquette, Sauk56 min
Jul 18, 4:45 AM CDTSevere Thunderstorm WarningMKXColumbia, Green Lake, Marquette, Sauk45 min
Jul 18, 5:15 AM CDTSevere Thunderstorm WarningMKXColumbia, Dodge, Fond du Lac, Green Lake, Marquette45 min
Jul 18, 5:27 AM CDTSpecial Marine WarningMKX2 hr
Jul 18, 5:47 AM CDTSpecial Weather StatementMKXDane, Dodge, Fond du Lac, Jefferson, Milwaukee, Ozaukee and 3 more58 min
Jul 18, 6:11 AM CDTSpecial Weather StatementMKXDane34 min
Jul 18, 7:07 AM CDTSpecial Marine WarningMKX53 min
Jul 18, 1:26 PM CDTSevere Thunderstorm WarningMKXDane, Green, Rock34 min
Jul 18, 1:49 PM CDTSpecial Weather StatementMKXJefferson, Washington41 min
Jul 18, 1:57 PM CDTSevere Thunderstorm WarningMKXLafayette18 min
Jul 18, 1:59 PM CDTSevere Thunderstorm WarningMKXDane, Green, Jefferson, Rock31 min
Jul 18, 2:07 PM CDTSpecial Weather StatementMKXWalworth23 min
Jul 18, 2:09 PM CDTSevere Thunderstorm WarningMKXKenosha, Racine, Walworth51 min
Jul 18, 2:15 PM CDTAreal Flood AdvisoryMKXGreen, Racine, Rock, Walworth60 min
Jul 18, 2:24 PM CDTSevere Thunderstorm WarningMKXDodge, Green, Jefferson, Rock, Walworth, Washington and 1 more51 min
Jul 18, 2:31 PM CDTSpecial Marine WarningMKX119 min
Jul 18, 2:40 PM CDTAreal Flood AdvisoryMKXKenosha, Milwaukee, Racine, Waukesha2 hr
Jul 18, 2:45 PM CDTTornado WarningMKXRock, Walworth30 min
Jul 18, 2:55 PM CDTSevere Thunderstorm WarningMKXKenosha, Milwaukee, Racine, Rock, Walworth, Waukesha35 min
Jul 18, 3:04 PM CDTTornado WarningMKXKenosha, Racine, Walworth26 min
Jul 18, 3:22 PM CDTSevere Thunderstorm WarningMKXKenosha, Milwaukee, Racine38 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.