Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 76, NWS La Crosse, WI

September 6, 2016Jackson County, Wisconsin

NWS La Crosse, WI issued this severe thunderstorm warning at Sep 6, 2016, 4:12 PM CDT for Jackson County, Wisconsin. It was in force for 38 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
Sep 6, 2016, 4:12 PM CDT (21:12 UTC)
Expired
Sep 6, 2016, 4:50 PM CDT
In force
38 min
Issued by
NWS La Crosse, WI
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Jackson County, WI

The radar

The La Crosse radar (KARX), 65 km from the middle of the area, began a volume at 21:13 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

Green Bay/Straub, WI (KGRB), launched 12:00Z, 9.2 hours before the alert went out and 203 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, Green Bay/Straub, WI at 12:00Z on 2016-09-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 583 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, Green Bay/Straub, WI at 12:00Z on 2016-09-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 193 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
583 J/kg
Mixed-layer CIN
-107 J/kg
Mixed-layer LCL
1042 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
193 m²/s²
0-3 km storm-relative helicity
180 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.0

Open this sounding in Storm Lab

The text

As transmitted.

210 
WUUS53 KARX 062112
SVRARX
WIC053-062200-
/O.NEW.KARX.SV.W.0076.160906T2112Z-160906T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
412 PM CDT TUE SEP 6 2016

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN JACKSON COUNTY IN WEST CENTRAL WISCONSIN...

* UNTIL 500 PM CDT

* AT 411 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER
  MILLSTON...OR 9 MILES SOUTHEAST OF BLACK RIVER FALLS...MOVING EAST
  AT 35 MPH.

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

  SOURCE...LAW ENFORCEMENT REPORTED QUARTER SIZE HAIL IN THE CITY
           OF BLACK RIVER FALLS. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* THIS SEVERE THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
  SOUTHEASTERN JACKSON COUNTY...INCLUDING THE FOLLOWING LOCATIONS:
  CITY POINT...BEAR BLUFF TOWNSHIP AND FALL HALL GLEN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE IMMEDIATELY TO SHELTER INSIDE A STRONG BUILDING. STAY
AWAY FROM WINDOWS.

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

&&

LAT...LON 4416 9083 4433 9085 4440 9032 4416 9031
TIME...MOT...LOC 2111Z 268DEG 32KT 4423 9067 

HAIL...1.00IN
WIND...60MPH
 
$$

DTJ
1 follow-up statement
959 
WWUS53 KARX 062150
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
450 PM CDT TUE SEP 6 2016

WIC053-062159-
/O.CAN.KARX.SV.W.0076.000000T0000Z-160906T2200Z/
JACKSON WI-
450 PM CDT TUE SEP 6 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN JACKSON COUNTY IS
CANCELLED...
        
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA.
THEREFORE THE WARNING HAS BEEN CANCELLED.  HOWEVER HEAVY RAIN IS
STILL POSSIBLE WITH THUNDERSTORMS ACROSS THE AREA.

LAT...LON 4416 9083 4433 9085 4440 9032 4416 9031
TIME...MOT...LOC 2147Z 268DEG 32KT 4424 9020 

$$

DTJ

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 6, 9:27 AM CDTSpecial Weather StatementARXBuffalo33 min
Sep 6, 9:43 AM CDTAreal Flood AdvisoryARXTaylor3 hr
Sep 6, 10:00 AM CDTSpecial Weather StatementARXBuffalo60 min
Sep 6, 10:23 AM CDTSpecial Weather StatementARXClark67 min
Sep 6, 2:12 PM CDTSpecial Weather StatementARXBuffalo, Trempealeau33 min
Sep 6, 2:53 PM CDTSpecial Weather StatementARXJackson, Trempealeau52 min
Sep 6, 3:30 PM CDTSevere Thunderstorm WarningARXClark, Jackson, Trempealeau45 min
Sep 6, 4:21 PM CDTTornado WarningARXJackson27 min
Sep 6, 4:39 PM CDTSevere Thunderstorm WarningARXAdams, Juneau66 min
Sep 6, 4:56 PM CDTSpecial Weather StatementARXBuffalo, Clark, Trempealeau64 min
Sep 6, 5:22 PM CDTSpecial Weather StatementARXClark, Jackson, Trempealeau53 min
Sep 6, 6:13 PM CDTSpecial Weather StatementARXMonroe62 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.