Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 73, NWS Milwaukee, WI

August 4, 2016Iowa County, Lafayette County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at Aug 4, 2016, 7:49 PM CDT for Iowa County, Lafayette County, Wisconsin. It was in force for 56 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
Aug 4, 2016, 7:49 PM CDT (00:49 UTC)
Expired
Aug 4, 2016, 8:45 PM CDT
In force
56 min
Issued by
NWS Milwaukee, WI
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Iowa County, WI, Lafayette County, WI

The radar

The Quad Cities radar (KDVN), 133 km from the middle of the area, began a volume at 00:48 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
Aug 4, 4:44 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 0.8 hours before the alert went out and 131 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 00:00Z on 2016-08-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1172 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 00:00Z on 2016-08-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 89 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
1172 J/kg
Mixed-layer CIN
-121 J/kg
Mixed-layer LCL
1357 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
89 m²/s²
0-3 km storm-relative helicity
146 m²/s²
Significant tornado parameter
0.2
Supercell composite
7.0

Open this sounding in Storm Lab

The text

As transmitted.

454 
WUUS53 KMKX 050049
SVRMKX
WIC049-065-050145-
/O.NEW.KMKX.SV.W.0073.160805T0049Z-160805T0145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
749 PM CDT THU AUG 4 2016

THE NATIONAL WEATHER SERVICE IN MILWAUKEE/SULLIVAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN IOWA COUNTY IN SOUTH CENTRAL WISCONSIN...
  LAFAYETTE COUNTY IN SOUTH CENTRAL WISCONSIN...

* UNTIL 845 PM CDT

* AT 748 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 7 MILES NORTHWEST OF PLATTEVILLE TO NEAR EAST
  DUBUQUE...MOVING EAST AT 50 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...TRAINED WEATHER SPOTTERS. AT 745 PM...WIND DAMAGE WAS
           REPORTED IN POTOSI. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  MINERAL POINT...DARLINGTON...SHULLSBURG...BELMONT...BENTON...
  ARGYLE...BLANCHARDVILLE...SOMERS...WIOTA...LINDEN...NEW DIGGINGS...
  SOUTH WAYNE...COBB...LAMONT...REWEY...GRATIOT...WOODFORD...
  LONDON...YELLOWSTONE LAKE ST PARK AND PLATTE MOUNDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS SITUATION. THESE STORMS ARE PRODUCING WIDESPREAD
WIND DAMAGE ACROSS GRANT COUNTY. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS! 
&&

LAT...LON 4301 9043 4283 8984 4251 8984 4251 9043
TIME...MOT...LOC 0048Z 286DEG 42KT 4283 9055 4255 9060 

HAIL...<.75IN
WIND...60MPH
 
$$

HALBACH
3 follow-up statements
251 
WWUS53 KMKX 050109
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
809 PM CDT THU AUG 4 2016

WIC049-065-050145-
/O.CON.KMKX.SV.W.0073.000000T0000Z-160805T0145Z/
IOWA WI-LAFAYETTE WI-
809 PM CDT THU AUG 4 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR SOUTHERN IOWA AND LAFAYETTE COUNTIES...

AT 807 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR BELMONT TO NEAR HAZEL GREEN...MOVING EAST AT 50
MPH.

HAZARD...60 MPH WIND GUSTS. AT 745 PM...WIND DAMAGE WAS REPORTED IN
         POTOSI.

SOURCE...TRAINED WEATHER SPOTTERS. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
MINERAL POINT...DARLINGTON...SHULLSBURG...BELMONT...BENTON...
ARGYLE...BLANCHARDVILLE...SOMERS...WIOTA...LINDEN...NEW DIGGINGS...
SOUTH WAYNE...COBB...LAMONT...REWEY...GRATIOT...WOODFORD...LONDON...
YELLOWSTONE LAKE ST PARK AND PLATTE MOUNDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

THIS IS A DANGEROUS SITUATION. THESE STORMS ARE PRODUCING WIDESPREAD
WIND DAMAGE ACROSS GRANT COUNTY. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.
 
TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
MILWAUKEE/SULLIVAN.

&&

LAT...LON 4301 9043 4283 8984 4251 8984 4251 9043
TIME...MOT...LOC 0107Z 286DEG 42KT 4279 9036 4251 9041 

HAIL...<.75IN
WIND...60MPH
 
$$

JTS
462 
WWUS53 KMKX 050130
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
830 PM CDT THU AUG 4 2016

WIC049-050138-
/O.CAN.KMKX.SV.W.0073.000000T0000Z-160805T0145Z/
IOWA WI-
830 PM CDT THU AUG 4 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN IOWA COUNTY IS
CANCELLED...

THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE WARNED
AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT FOR
SOUTH CENTRAL WISCONSIN.

LAT...LON 4281 9043 4282 9018 4272 8984 4251 8984
      4251 9043
TIME...MOT...LOC 0128Z 286DEG 42KT 4275 9015 4247 9020 

$$

WIC065-050145-
/O.CON.KMKX.SV.W.0073.000000T0000Z-160805T0145Z/
LAFAYETTE WI-
830 PM CDT THU AUG 4 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR LAFAYETTE COUNTY...

AT 828 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR DARLINGTON TO NEAR SCALES MOUND...MOVING EAST AT
50 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...TRAINED WEATHER SPOTTERS. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
DARLINGTON...SHULLSBURG...BELMONT...BENTON...ARGYLE...SOMERS...
WIOTA...NEW DIGGINGS...SOUTH WAYNE...LAMONT...GRATIOT...WOODFORD...
PLATTE MOUNDS...LEAD MINE AND LESLIE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

THIS IS A DANGEROUS SITUATION. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.
 
TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE IN
MILWAUKEE/SULLIVAN.

&&

LAT...LON 4281 9043 4282 9018 4272 8984 4251 8984
      4251 9043
TIME...MOT...LOC 0128Z 286DEG 42KT 4275 9015 4247 9020 

HAIL...<.75IN
WIND...60MPH
 
$$

JTS
685 
WWUS53 KMKX 050144
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
844 PM CDT THU AUG 4 2016

WIC065-050153-
/O.EXP.KMKX.SV.W.0073.000000T0000Z-160805T0145Z/
LAFAYETTE WI-
844 PM CDT THU AUG 4 2016

...THE SEVERE THUNDERSTORM WARNING FOR LAFAYETTE COUNTY WILL EXPIRE
AT 845 PM CDT...
    
THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE AREA.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE. HOWEVER GUSTY WINDS
ARE STILL POSSIBLE WITH THESE THUNDERSTORMS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT FOR
SOUTH CENTRAL WISCONSIN.

LAT...LON 4281 9043 4282 9018 4272 8984 4251 8984
      4251 9043
TIME...MOT...LOC 0134Z 286DEG 42KT 4275 9015 4247 9020 

$$

JTS

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 4, 7:04 PM CDTSevere Thunderstorm WarningMKXDane, Green, Iowa, Lafayette56 min
Aug 4, 7:33 PM CDTSpecial Weather StatementMKXRock57 min
Aug 4, 7:51 PM CDTSevere Thunderstorm WarningMKXDane, Jefferson, Rock41 min
Aug 4, 8:12 PM CDTAreal Flood AdvisoryMKXIowa, Lafayette2 hr
Aug 4, 8:31 PM CDTSevere Thunderstorm WarningMKXGreen40 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2016Every severe thunderstorm warning in 2016

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.