Alert archive / Wisconsin / Tornado Warnings in 2018

Tornado Warning 4, NWS Milwaukee, WI

June 26, 2018Green County, Iowa County, Lafayette County, Wisconsin

NWS Milwaukee, WI issued this tornado warning at Jun 26, 2018, 2:47 PM CDT for Green County, Iowa County, Lafayette County, Wisconsin. It was in force for 28 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 26, 2018, 2:47 PM CDT (19:47 UTC)
Expired
Jun 26, 2018, 3:15 PM CDT
In force
28 min
Issued by
NWS Milwaukee, WI
Area
Storm-based polygon
Tornado
Observed
Hail
0.0 in

Counties Green County, WI, Iowa County, WI, Lafayette County, WI

The radar

The Milwaukee radar (KMKX), 106 km from the middle of the area, began a volume at 19:48 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 nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 7.8 hours before the alert went out and 143 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 2018-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1133 joules per kilogram.LCLEL10008507005003002001001 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 2018-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 119 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
1133 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
503 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
119 m²/s²
0-3 km storm-relative helicity
153 m²/s²
Significant tornado parameter
0.6
Supercell composite
3.8

Open this sounding in Storm Lab

The text

As transmitted.

205 
WFUS53 KMKX 261947
TORMKX
WIC045-049-065-262015-
/O.NEW.KMKX.TO.W.0004.180626T1947Z-180626T2015Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Milwaukee/Sullivan WI
247 PM CDT TUE JUN 26 2018

The National Weather Service in Milwaukee/Sullivan has issued a

* Tornado Warning for...
  Northeastern Lafayette County in south central Wisconsin...
  Northwestern Green County in south central Wisconsin...
  Southeastern Iowa County in south central Wisconsin...

* Until 315 PM CDT.

* At 247 PM CDT, a confirmed tornado was located over Blanchardville,
  or 15 miles northeast of Darlington, moving northeast at 15 mph.

  HAZARD...Damaging tornado.

  SOURCE...Law enforcement confirmed tornado.

  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...
  Blanchardville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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 4274 8988 4287 8989 4286 8984 4286 8979
      4285 8972 4273 8982
TIME...MOT...LOC 1947Z 202DEG 14KT 4277 8985 

TORNADO...OBSERVED
HAIL...0.00IN

$$

DDV
3 follow-up statements
409 
WWUS53 KMKX 261955
SVSMKX

Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
255 PM CDT TUE JUN 26 2018

WIC045-049-065-262015-
/O.CON.KMKX.TO.W.0004.000000T0000Z-180626T2015Z/
Lafayette WI-Green WI-Iowa WI-
255 PM CDT TUE JUN 26 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 315 PM CDT FOR
NORTHEASTERN LAFAYETTE...NORTHWESTERN GREEN AND SOUTHEASTERN IOWA
COUNTIES...
    
At 255 PM CDT, a confirmed tornado was located near Blanchardville, 
or 14 miles south of Mount Horeb, moving north at 15 mph.

HAZARD...Damaging tornado.

SOURCE...Law enforcement confirmed tornado.

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...
Blanchardville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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 4277 8987 4287 8989 4286 8984 4286 8979
      4285 8972 4277 8981
TIME...MOT...LOC 1955Z 201DEG 15KT 4281 8983 

TORNADO...OBSERVED
HAIL...0.00IN

$$

MBK
560 
WWUS53 KMKX 262007
SVSMKX

Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
307 PM CDT TUE JUN 26 2018

WIC065-262014-
/O.CAN.KMKX.TO.W.0004.000000T0000Z-180626T2015Z/
Lafayette WI-
307 PM CDT TUE JUN 26 2018

...THE TORNADO WARNING FOR NORTHEASTERN LAFAYETTE COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has weakened. 
moved out of the warned area. Therefore, the warning has been 
cancelled.

LAT...LON 4282 8985 4287 8989 4286 8984 4286 8979
      4285 8972 4280 8980
TIME...MOT...LOC 2004Z 201DEG 15KT 4285 8981 

$$

WIC045-049-262015-
/O.CON.KMKX.TO.W.0004.000000T0000Z-180626T2015Z/
Green WI-Iowa WI-
307 PM CDT TUE JUN 26 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 315 PM CDT FOR
NORTHWESTERN GREEN AND SOUTHEASTERN IOWA COUNTIES...
    
A confirmed tornado had been reported near Blanchardville about 245 
pm, or 11 miles south of Mount Horeb, moving north at 15 mph. 
However local officials reported the tornado has lifted off the 
ground just before 3 pm. 

HAZARD...Damaging tornado.

SOURCE...The threat for a tornado touchdown continues until 3:15 pm. 

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 tornadic thunderstorm will remain over mainly rural areas of
northwestern Green and southeastern Iowa Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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 4282 8985 4287 8989 4286 8984 4286 8979
      4285 8972 4280 8980
TIME...MOT...LOC 2004Z 201DEG 15KT 4285 8981 

TORNADO...OBSERVED
HAIL...0.00IN

$$

MBK
938 
WWUS53 KMKX 262009
SVSMKX

Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
309 PM CDT TUE JUN 26 2018

WIC045-049-262019-
/O.EXP.KMKX.TO.W.0004.000000T0000Z-180626T2015Z/
Green WI-Iowa WI-
309 PM CDT TUE JUN 26 2018

...THE TORNADO WARNING FOR NORTHWESTERN GREEN AND SOUTHEASTERN IOWA
COUNTIES WILL EXPIRE AT 315 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.

LAT...LON 4282 8985 4287 8989 4286 8984 4286 8979
      4285 8972 4280 8980
TIME...MOT...LOC 2009Z 202DEG 14KT 4286 8980 

$$

MBK

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 26, 2:26 AM CDTFlash Flood WatchMKXGreen, Kenosha, Lafayette, Racine, Rock, Walworth20 hr
Jun 26, 1:47 PM CDTSevere Thunderstorm WarningMKXRock43 min
Jun 26, 2:39 PM CDTSpecial Weather StatementMKXWalworth51 min
Jun 26, 3:26 PM CDTTornado WarningMKXDane, Green34 min
Jun 26, 3:35 PM CDTSpecial Weather StatementMKXWalworth25 min
Jun 26, 4:54 PM CDTAreal Flood AdvisoryMKXDane2 hr
Jun 26, 6:01 PM CDTSpecial Weather StatementMKXJefferson44 min
Jun 26, 6:23 PM CDTAreal Flood AdvisoryMKXKenosha, Racine, Rock, Walworth2 hr

Nearby

Tornado Warnings in Wisconsin, 2018Every tornado warning in 2018Tornadoes in 2018

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.