Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 49, NWS La Crosse, WI

May 28, 2012Adams County, Wisconsin

NWS La Crosse, WI issued this severe thunderstorm warning at May 28, 2012, 3:57 PM CDT for Adams County, Wisconsin. It was in force for 18 min. 2 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
May 28, 2012, 3:57 PM CDT (20:57 UTC)
Expired
May 28, 2012, 4:15 PM CDT
In force
18 min
Issued by
NWS La Crosse, WI
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Adams County, WI

The radar

The La Crosse radar (KARX), 120 km from the middle of the area, began a volume at 20:57 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
May 28, 4:00 PM CDTHAIL 12 Sw Big Spring, WI
May 28, 4:09 PM CDTTSTM WND DMG2 Sw Big Spring, WITREES BLOWN DOWN ALONG HIGHWAY 23 AND COUNTY ROAD B. DIME SIZE HAIL ALSO REPORTED.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 28, 12:54 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 9.0 hours before the alert went out and 157 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 2012-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 42 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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 2012-05-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 133 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
42 J/kg
Mixed-layer CIN
-178 J/kg
Mixed-layer LCL
1757 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
133 m²/s²
0-3 km storm-relative helicity
158 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

407 
WUUS53 KARX 282057
SVRARX
WIC001-282115-
/O.NEW.KARX.SV.W.0049.120528T2057Z-120528T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
357 PM CDT MON MAY 28 2012

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN ADAMS COUNTY IN CENTRAL WISCONSIN...

* UNTIL 415 PM CDT

* AT 353 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM LOCATED NEAR HOLIDAY SHORES CAMPGROUND...OR
  NEAR WISCONSIN DELLS...MOVING NORTHEAST AT 40 MPH. THIS STORM CAN
  PRODUCE QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH.  

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  COUNTY ROADS B AND P AND HIGHWAY 23 AND COUNTY G AROUND 405 PM...
  BIG SPRING AND K AND L CAMPGROUND AROUND 410 PM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL AND DAMAGING WINDS. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE
AND STAY AWAY FROM WINDOWS.

&&

LAT...LON 4364 8961 4364 8979 4365 8979 4367 8979
      4368 8982 4370 8982 4378 8960 4364 8960
TIME...MOT...LOC 2057Z 246DEG 36KT 4364 8978
WIND...HAIL 60MPH 1.00IN

$$

ZT
3 follow-up statements
620 
WWUS53 KARX 282103
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
403 PM CDT MON MAY 28 2012

WIC001-282115-
/O.CON.KARX.SV.W.0049.000000T0000Z-120528T2115Z/
ADAMS WI-
403 PM CDT MON MAY 28 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
ADAMS COUNTY UNTIL 415 PM CDT...

AT 400 PM...TRAINED WEATHER SPOTTERS REPORTED QUARTER SIZE HAIL IN 
WISCONSIN DELLS WITH THIS SEVERE THUNDERSTORM.

AT 402 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE
SEVERE THUNDERSTORM WAS LOCATED NEAR HIGHWAY 23 AND COUNTY B...OR 
NEAR WISCONSIN DELLS...MOVING NORTHEAST AT 40 MPH. THIS STORM CAN 
PRODUCE QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL AND DAMAGING WINDS. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE
AND STAY AWAY FROM WINDOWS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM MONDAY
EVENING FOR WESTERN WISCONSIN.

&&

LAT...LON 4364 8961 4364 8979 4365 8979 4367 8979
      4368 8982 4370 8982 4378 8960 4364 8960
TIME...MOT...LOC 2103Z 249DEG 42KT 4366 8969
WIND...HAIL 60MPH 1.00IN

$$

ZT
089 
WWUS53 KARX 282112
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
412 PM CDT MON MAY 28 2012

WIC001-282115-
/O.CON.KARX.SV.W.0049.000000T0000Z-120528T2115Z/
ADAMS WI-
412 PM CDT MON MAY 28 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
ADAMS COUNTY UNTIL 415 PM CDT...

AT 408 PM...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED QUARTER SIZE 
HAIL AND TREES DOWN ALONG HIGHWAY 23 AND COUNTY ROAD B WITH A SEVERE 
THUNDERSTORM.

AT 407 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE
SEVERE THUNDERSTORM WAS LOCATED NEAR BIG SPRING...OR 8 MILES
NORTHEAST OF WISCONSIN DELLS...MOVING EAST AT 35 MPH. THIS STORM CAN
PRODUCE QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL AND DAMAGING WINDS. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE
AND STAY AWAY FROM WINDOWS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM MONDAY
EVENING FOR WESTERN WISCONSIN.

&&

LAT...LON 4364 8960 4364 8979 4367 8979 4368 8981
      4370 8982 4378 8960
TIME...MOT...LOC 2111Z 249DEG 39KT 4369 8958
WIND...HAIL 60MPH 1.00IN

$$

ZT
058 
WWUS53 KARX 282114
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
414 PM CDT MON MAY 28 2012

WIC001-282125-
/O.EXP.KARX.SV.W.0049.000000T0000Z-120528T2115Z/
ADAMS WI-
414 PM CDT MON MAY 28 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ADAMS COUNTY HAS
EXPIRED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT MONDAY
EVENING FOR WESTERN WISCONSIN.

LAT...LON 4364 8960 4364 8979 4367 8979 4368 8981
      4370 8982 4378 8960
TIME...MOT...LOC 2115Z 249DEG 39KT 4370 8952

$$

ZT

The office that day

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

IssuedProductOfficeCountiesLasted
May 28, 9:52 AM CDTRiver Flood WarningARXBuffalo8 days

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2012Every severe thunderstorm warning in 2012

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.