Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 63, NWS La Crosse, WI

August 4, 2016La Crosse County, Monroe County, Vernon County, Wisconsin

NWS La Crosse, WI issued this severe thunderstorm warning at Aug 4, 2016, 3:31 PM CDT for La Crosse County, Monroe County, Vernon County, Wisconsin. It was in force for 44 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Aug 4, 2016, 3:31 PM CDT (20:31 UTC)
Expired
Aug 4, 2016, 4:15 PM CDT
In force
44 min
Issued by
NWS La Crosse, WI
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties La Crosse County, WI, Monroe County, WI, Vernon County, WI

The radar

The La Crosse radar (KARX), 24 km from the middle of the area, began a volume at 20:33 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.

What was reported inside it

TimeReportWhereRemark
Aug 4, 3:55 PM CDTTSTM WND DMGCashton, WIDAMAGE TO CORN FIELDS IN THE CASHTON AREA
Aug 4, 3:55 PM CDTTSTM WND DMGCashton, WIDAMAGE TO CORN FIELDS IN THE CASHTON AREA.
Aug 4, 4:10 PM CDTTSTM WND GST 47Viroqua, WI

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 8.5 hours before the alert went out and 231 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 2016-08-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 500 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 2016-08-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 10 square meters per square second.1939Sfc1 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
500 J/kg
Mixed-layer CIN
-126 J/kg
Mixed-layer LCL
970 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
10 m²/s²
0-3 km storm-relative helicity
98 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

700 
WUUS53 KARX 042031
SVRARX
WIC063-081-123-042115-
/O.NEW.KARX.SV.W.0063.160804T2031Z-160804T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
331 PM CDT THU AUG 4 2016

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN MONROE COUNTY IN WEST CENTRAL WISCONSIN...
  SOUTHEASTERN LA CROSSE COUNTY IN WEST CENTRAL WISCONSIN...
  NORTHWESTERN VERNON COUNTY IN SOUTHWESTERN WISCONSIN...

* UNTIL 415 PM CDT

* AT 330 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR BANGOR TO NEAR BROWNSVILLE...MOVING SOUTHEAST
  AT 50 MPH.

  HAZARD...60 MPH WIND GUSTS. 

  SOURCE...LAW ENFORCEMENT. 

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

* SEVERE THUNDERSTORMS WILL BE NEAR...
  SPARTA AROUND 335 PM CDT. 
  COON VALLEY AROUND 340 PM CDT. 
  CASHTON AROUND 345 PM CDT. 
  WESTBY AROUND 350 PM CDT. 
  VIROQUA AROUND 355 PM CDT. 
  LA FARGE AROUND 405 PM CDT. 

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
NEWTON...SPRINGVILLE...LEON...PORTLAND AND BURNS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE ARE DANGEROUS STORMS. PREPARE IMMEDIATELY FOR LARGE DESTRUCTIVE
HAIL CAPABLE OF PRODUCING SIGNIFICANT DAMAGE. PEOPLE OUTSIDE SHOULD
MOVE TO SHELTER INSIDE A STRONG BUILDING... AND STAY AWAY FROM
WINDOWS.

TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 4355 9066 4355 9067 4354 9067 4356 9124
      4358 9123 4361 9127 4365 9126 4365 9127
      4371 9127 4373 9126 4372 9091 4396 9121
      4395 9037
TIME...MOT...LOC 2030Z 299DEG 44KT 4386 9096 4371 9122 

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

DAB
3 follow-up statements
814 
WWUS53 KARX 042042
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
342 PM CDT THU AUG 4 2016

WIC063-081-123-042115-
/O.CON.KARX.SV.W.0063.000000T0000Z-160804T2115Z/
MONROE WI-LA CROSSE WI-VERNON WI-
342 PM CDT THU AUG 4 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT
FOR SOUTHERN MONROE...SOUTHEASTERN LA CROSSE AND NORTHWESTERN VERNON
COUNTIES...

AT 339 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR SPARTA TO NEAR CASHTON TO STODDARD...MOVING EAST
AT 45 MPH.  

HAZARD...60 TO 65 MPH MEASURED WIND GUSTS. 

SOURCE...THIS STORM IS PRODUCING WIDESPREAD WINDS OF 60 TO 65 MPH
         AND TREE DAMAGE.  MANY REPORTS OF TREE DAMAGE HAVE BEEN
         RECEIVED IN WEST SALEM AND THE CITY OF LA CROSSE.       

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

THESE SEVERE STORMS WILL BE NEAR...
  SPARTA AND CASHTON AROUND 345 PM CDT. 
  VIROQUA AND WESTBY AROUND 400 PM CDT. 
  LA FARGE AROUND 415 PM CDT. 

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE
NEWTON...SPRINGVILLE...LEON...PORTLAND AND BURNS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS SITUATION.  SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.
 
TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 4355 9066 4355 9067 4354 9067 4356 9124
      4358 9123 4361 9127 4365 9126 4365 9127
      4371 9127 4373 9126 4372 9091 4388 9111
      4396 9111 4395 9037
TIME...MOT...LOC 2039Z 282DEG 40KT 4393 9087 4377 9085 4364 9119 

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

BAUMGARDT
358 
WWUS53 KARX 042059
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
359 PM CDT THU AUG 4 2016

WIC063-081-123-042115-
/O.CON.KARX.SV.W.0063.000000T0000Z-160804T2115Z/
MONROE WI-LA CROSSE WI-VERNON WI-
359 PM CDT THU AUG 4 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT
FOR SOUTHERN MONROE...EAST CENTRAL LA CROSSE AND NORTHWESTERN VERNON
COUNTIES...

AT 358 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 9 MILES SOUTH OF TOMAH TO VIROQUA...MOVING EAST AT 60
MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...PUBLIC. THIS LINE OF STORMS HAS A HISTORY OF CONFIRMED WIND
         DAMAGE AND TORRENTIAL RAINFALL. 

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

THESE SEVERE THUNDERSTORMS WILL REMAIN OVER MAINLY RURAL AREAS OF
SOUTHERN MONROE...EAST CENTRAL LA CROSSE AND NORTHWESTERN VERNON
COUNTIES...INCLUDING THE FOLLOWING LOCATIONS: NEWTON...SPRINGVILLE...
LEON...PORTLAND AND BURNS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 4355 9066 4355 9067 4354 9067 4356 9124
      4358 9123 4361 9127 4366 9119 4368 9110
      4370 9097 4372 9091 4384 9096 4396 9100
      4395 9037
TIME...MOT...LOC 2058Z 286DEG 51KT 4386 9057 4370 9055 4357 9089 

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

DAB
169 
WWUS53 KARX 042104
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
404 PM CDT THU AUG 4 2016

WIC063-042113-
/O.CAN.KARX.SV.W.0063.000000T0000Z-160804T2115Z/
LA CROSSE WI-
404 PM CDT THU AUG 4 2016

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL LA CROSSE COUNTY
IS CANCELLED...

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

LAT...LON 4355 9066 4355 9067 4354 9067 4355 9104
      4360 9103 4367 9094 4373 9084 4382 9078
      4396 9077 4395 9037
TIME...MOT...LOC 2103Z 286DEG 38KT 4389 9057 4368 9056 4355 9090 

$$

WIC081-123-042115-
/O.CON.KARX.SV.W.0063.000000T0000Z-160804T2115Z/
MONROE WI-VERNON WI-
404 PM CDT THU AUG 4 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM CDT
FOR SOUTHEASTERN MONROE AND NORTH CENTRAL VERNON COUNTIES...

AT 403 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 7 MILES SOUTHWEST OF TOMAH TO 8 MILES NORTHEAST OF LA
FARGE TO VIROQUA...MOVING EAST AT 45 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...PUBLIC. 

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

THESE SEVERE THUNDERSTORMS WILL REMAIN OVER MAINLY RURAL AREAS OF
SOUTHEASTERN MONROE AND NORTH CENTRAL VERNON COUNTIES...INCLUDING THE
FOLLOWING LOCATIONS: SPRINGVILLE...NORWALK...ONTARIO...WILTON AND
RIDGEVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TORRENTIAL RAINFALL IS OCCURRING WITH THESE STORMS...AND MAY LEAD TO
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

&&

LAT...LON 4355 9066 4355 9067 4354 9067 4355 9104
      4360 9103 4367 9094 4373 9084 4382 9078
      4396 9077 4395 9037
TIME...MOT...LOC 2103Z 286DEG 38KT 4389 9057 4368 9056 4355 9090 

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

DAB

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 4, 3:01 PM CDTAreal Flood AdvisoryARXLa Crosse119 min
Aug 4, 3:23 PM CDTSevere Thunderstorm WarningARXLa Crosse37 min
Aug 4, 4:09 PM CDTSevere Thunderstorm WarningARXJuneau, Monroe, Richland, Vernon51 min
Aug 4, 5:01 PM CDTSevere Thunderstorm WarningARXCrawford44 min
Aug 4, 5:01 PM CDTSevere Thunderstorm WarningARXAdams, Juneau44 min
Aug 4, 6:44 PM CDTSpecial Weather StatementARXCrawford, Grant, Richland91 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.