Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 82, NWS La Crosse, WI

September 21, 2016Jackson County, Trempealeau County, Wisconsin

NWS La Crosse, WI issued this severe thunderstorm warning at Sep 21, 2016, 12:21 AM CDT for Jackson County, Trempealeau County, Wisconsin. It was in force for 41 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 21, 2016, 12:21 AM CDT (05:21 UTC)
Expired
Sep 21, 2016, 1:02 AM CDT
In force
41 min
Issued by
NWS La Crosse, WI
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Jackson County, WI, Trempealeau County, WI

The radar

The La Crosse radar (KARX), 67 km from the middle of the area, began a volume at 05:23 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
Sep 20, 9:34 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 5.4 hours before the alert went out and 202 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, Minneapolis, MN at 00:00Z on 2016-09-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Minneapolis, MN at 00:00Z on 2016-09-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 230 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1882 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
230 m²/s²
0-3 km storm-relative helicity
662 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

Open this sounding in Storm Lab

The text

As transmitted.

553 
WUUS53 KARX 210521
SVRARX
WIC053-121-210615-
/O.NEW.KARX.SV.W.0082.160921T0521Z-160921T0615Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
1221 AM CDT WED SEP 21 2016

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN JACKSON COUNTY IN WEST CENTRAL WISCONSIN...
  NORTHERN TREMPEALEAU COUNTY IN WEST CENTRAL WISCONSIN...

* UNTIL 115 AM CDT

* AT 1220 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR STRUM...OR
  9 MILES NORTH OF WHITEHALL...MOVING SOUTHEAST AT 30 MPH.

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

  SOURCE...RADAR INDICATED. 

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

* THIS SEVERE THUNDERSTORM WILL BE NEAR...
  OSSEO AROUND 1225 AM CDT. 
  WHITEHALL AROUND 1230 AM CDT. 
  PRICE AROUND 1240 AM CDT. 

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE YORK...
ELEVA...NORTHFIELD...ALMA CENTER AND LEVIS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4459 9092 4416 9091 4415 9091 4446 9153
      4460 9153
TIME...MOT...LOC 0520Z 297DEG 28KT 4451 9136 

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

DAB
3 follow-up statements
431 
WWUS53 KARX 210534
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
1234 AM CDT WED SEP 21 2016

WIC053-121-210615-
/O.CON.KARX.SV.W.0082.000000T0000Z-160921T0615Z/
JACKSON WI-TREMPEALEAU WI-
1234 AM CDT WED SEP 21 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 AM CDT
FOR WESTERN JACKSON AND NORTHERN TREMPEALEAU COUNTIES...

AT 1234 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED 7 MILES SOUTH OF
OSSEO...OR 7 MILES NORTH OF WHITEHALL...MOVING SOUTHEAST AT 30 MPH.

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

SOURCE...RADAR INDICATED. 

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

THIS SEVERE STORM WILL BE NEAR...
  PRICE AROUND 1245 AM CDT. 

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE YORK...
ELEVA...NORTHFIELD...ALMA CENTER AND LEVIS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4459 9092 4416 9091 4415 9091 4446 9153
      4460 9153
TIME...MOT...LOC 0534Z 296DEG 27KT 4447 9127 

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

DAB
143 
WWUS53 KARX 210554
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
1254 AM CDT WED SEP 21 2016

WIC053-121-210615-
/O.CON.KARX.SV.W.0082.000000T0000Z-160921T0615Z/
JACKSON WI-TREMPEALEAU WI-
1254 AM CDT WED SEP 21 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 AM CDT
FOR NORTHWESTERN JACKSON AND NORTHEASTERN TREMPEALEAU COUNTIES...

AT 1254 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR HUMBIRD...OR
12 MILES NORTH OF BLACK RIVER FALLS...MOVING EAST AT 40 MPH.

HAZARD...60 MPH WIND GUSTS. 

SOURCE...RADAR INDICATED. 

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

THIS SEVERE THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
NORTHWESTERN JACKSON AND NORTHEASTERN TREMPEALEAU COUNTIES...
INCLUDING THE FOLLOWING LOCATIONS: YORK...NORTHFIELD...ALMA CENTER...
LEVIS AND I 94 EXIT 98.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4439 9092 4445 9122 4460 9123 4459 9092
TIME...MOT...LOC 0554Z 284DEG 35KT 4448 9093 

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

DAB
596 
WWUS53 KARX 210602
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
102 AM CDT WED SEP 21 2016

WIC053-121-210611-
/O.CAN.KARX.SV.W.0082.000000T0000Z-160921T0615Z/
JACKSON WI-TREMPEALEAU WI-
102 AM CDT WED SEP 21 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN JACKSON AND
NORTHEASTERN TREMPEALEAU COUNTIES IS CANCELLED...
                
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 300 AM CDT FOR
WEST CENTRAL WISCONSIN.

LAT...LON 4439 9092 4445 9122 4460 9123 4459 9092
TIME...MOT...LOC 0556Z 297DEG 28KT 4445 9085 

$$

DAB

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 20, 11:26 PM CDTSpecial Weather StatementARXBuffalo109 min
Sep 21, 12:11 AM CDTSpecial Weather StatementARXClark, Jackson, Trempealeau109 min
Sep 21, 1:25 AM CDTSpecial Weather StatementARXAdams, Buffalo, Clark, Jackson, Juneau, La Crosse and 3 more110 min
Sep 21, 1:45 AM CDTSevere Thunderstorm WarningARXAdams28 min
Sep 21, 2:23 AM CDTSpecial Weather StatementARXCrawford, La Crosse, Monroe, Richland, Vernon67 min
Sep 21, 3:31 AM CDTSpecial Weather StatementARXBuffalo, Jackson, La Crosse, Trempealeau119 min
Sep 21, 5:40 AM CDTFlash Flood WarningARXBuffalo, Trempealeau3 hr
Sep 21, 6:44 AM CDTFlash Flood WarningARXCrawford, Vernon6 hr
Sep 21, 8:26 AM CDTFlash Flood WarningARXJackson, La Crosse, Monroe, Trempealeau3 hr
Sep 21, 10:10 AM CDTRiver Flood WarningARXJackson3 days
Sep 21, 10:10 AM CDTRiver Flood WarningARXLa Crosse, Trempealeau6 days
Sep 21, 10:10 AM CDTRiver Flood WarningARXBuffalo, Trempealeau4 days
Sep 21, 10:10 AM CDTRiver Flood WarningARXBuffalo, Trempealeau7 days
Sep 21, 10:27 AM CDTRiver Flood WarningARXRichland, Vernon4 days
Sep 21, 10:27 AM CDTRiver Flood WarningARXVernon5 days
Sep 21, 10:27 AM CDTRiver Flood WarningARXCrawford5 days
Sep 21, 10:27 AM CDTRiver Flood WarningARXCrawford7 days
Sep 21, 10:27 AM CDTRiver Flood WarningARXCrawford8 days
Sep 21, 11:31 AM CDTFlash Flood WarningARXLa Crosse, Monroe3 hr
Sep 21, 12:55 PM CDTSpecial Weather StatementARXTrempealeau50 min
Sep 21, 1:01 PM CDTSpecial Weather StatementARXRichland44 min
Sep 21, 1:05 PM CDTSpecial Weather StatementARXClark55 min
Sep 21, 2:13 PM CDTFlash Flood WarningARXClark5 hr
Sep 21, 2:54 PM CDTSpecial Weather StatementARXAdams21 min
Sep 21, 2:59 PM CDTSpecial Weather StatementARXJackson46 min
Sep 21, 4:43 PM CDTRiver Flood WarningARXJuneau7 days
Sep 21, 5:33 PM CDTSevere Thunderstorm WarningARXClark42 min
Sep 21, 5:44 PM CDTSpecial Weather StatementARXAdams, Juneau46 min
Sep 21, 5:57 PM CDTSevere Thunderstorm WarningARXAdams, Juneau, Monroe48 min
Sep 21, 6:58 PM CDTFlash Flood WarningARXAdams4 hr

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.