Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 8, NWS La Crosse, WI

May 2, 2012Wabasha County, Minnesota; Buffalo County, Wisconsin

NWS La Crosse, WI issued this severe thunderstorm warning at May 2, 2012, 8:48 PM CDT for Wabasha County, Minnesota; Buffalo County, Wisconsin. It was in force for 72 min. 4 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 2, 2012, 8:48 PM CDT (01:48 UTC)
Expired
May 2, 2012, 10:00 PM CDT
In force
72 min
Issued by
NWS La Crosse, WI
Area
Storm-based polygon
Hail
1.75 in
Wind
60.0 mph

Counties Wabasha County, MN, Buffalo County, WI

The radar

The La Crosse radar (KARX), 96 km from the middle of the area, began a volume at 01:46 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 2, 9:15 PM CDTHAIL 1.752 W Wabasha, MN
May 2, 9:15 PM CDTHAIL 1.75Wabasha, MNCTY RD 10 JUST OUTSIDE OF WABASHA. 50 MPH WINDS ESTIMATED AS WELL.
May 2, 9:25 PM CDTTSTM WND GST 74Wabasha, MNTREES DOWN ACROSS CITY OF WABASHA
May 2, 9:31 PM CDTTSTM WND DMGAlma, WITREES DOWN AND POWER OUTAGES REPORTED VIA BUFFALO COUNTY SHERIFF.

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 2, 5:25 PM CDTSevere Thunderstorm WatchSPC4 hr
May 2, 7:47 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 1.8 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, Minneapolis, MN at 00:00Z on 2012-05-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 84 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, Minneapolis, MN at 00:00Z on 2012-05-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 square meters per square second.1939587897Sfc1 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
84 J/kg
Mixed-layer CIN
-59 J/kg
Mixed-layer LCL
1937 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
134 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

260 
WUUS53 KARX 030148
SVRARX
MNC157-WIC011-030300-
/O.NEW.KARX.SV.W.0008.120503T0148Z-120503T0300Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
848 PM CDT WED MAY 2 2012

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN WABASHA COUNTY IN SOUTHEAST MINNESOTA...
  NORTHERN BUFFALO COUNTY IN WEST CENTRAL WISCONSIN...

* UNTIL 1000 PM CDT

* AT 846 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM LOCATED 7 MILES NORTHWEST OF DUMFRIES...OR NEAR
  LAKE CITY...MOVING EAST AT 30 MPH. THIS STORM CAN PRODUCE LARGE
  DAMAGING HAIL UP TO GOLF BALL SIZE AND DAMAGING WINDS IN EXCESS OF
  60 MPH.  

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  KRUGER CAMPGROUND AROUND 855 PM...
  WABASHA AROUND 900 PM...
  NELSON AROUND 905 PM...
  ALMA AND MISHA MOKWA AROUND 910 PM...
  COUNTY ROADS F AND K K AND TELL AROUND 915 PM...
  URNE AROUND 920 PM...
  MODENA AND PRAAG AROUND 925 PM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS
STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE HAIL...WHICH CAN
SIGNIFICANTLY DAMAGE ROOFS...WINDOWS...SIDING AND VEHICLES. DAMAGING
WINDS ARE ALSO EXPECTED...WHICH WILL UPROOT TREES AND DOWN POWER
LINES. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

&&

LAT...LON 4429 9253 4439 9205 4441 9209 4453 9205
      4460 9173 4460 9153 4438 9153 4423 9254
TIME...MOT...LOC 0148Z 253DEG 27KT 4442 9220
WIND...HAIL 60MPH 1.75IN

$$

RRS
4 follow-up statements
455 
WWUS53 KARX 030201
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
901 PM CDT WED MAY 2 2012

MNC157-WIC011-030300-
/O.CON.KARX.SV.W.0008.000000T0000Z-120503T0300Z/
WABASHA MN-BUFFALO WI-
901 PM CDT WED MAY 2 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
BUFFALO AND NORTHERN WABASHA COUNTIES UNTIL 1000 PM CDT...

AT 858 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM LOCATED NEAR DUMFRIES...OR 6 MILES NORTHWEST OF
WABASHA...MOVING EAST AT 20 MPH. THIS STORM CAN PRODUCE LARGE
DAMAGING HAIL UP TO GOLF BALL SIZE AND DAMAGING WINDS IN EXCESS OF 60
MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  WABASHA AROUND 910 PM...
  NELSON AND MISHA MOKWA AROUND 920 PM...
  ALMA AND HIGHWAYS 37 AND 35 AROUND 925 PM...
  MODENA AROUND 945 PM...
  THE BIG SWAMP AREA AND PRAAG AROUND 950 PM...
  MONDOVI AND GILMANTON AROUND 1000 PM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS
STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE HAIL...WHICH CAN
SIGNIFICANTLY DAMAGE ROOFS...WINDOWS...SIDING AND VEHICLES. DAMAGING
WINDS ARE ALSO EXPECTED...WHICH WILL UPROOT TREES AND DOWN POWER
LINES. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

&&

LAT...LON 4424 9250 4430 9249 4434 9230 4439 9205
      4441 9209 4453 9205 4460 9173 4460 9153
      4438 9153 4436 9164
TIME...MOT...LOC 0201Z 256DEG 19KT 4442 9213
WIND...HAIL 60MPH 1.75IN

$$

RRS
734 
WWUS53 KARX 030216
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
916 PM CDT WED MAY 2 2012

MNC157-WIC011-030300-
/O.CON.KARX.SV.W.0008.000000T0000Z-120503T0300Z/
WABASHA MN-BUFFALO WI-
916 PM CDT WED MAY 2 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
BUFFALO AND CENTRAL WABASHA COUNTIES UNTIL 1000 PM CDT...

AT 912 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM LOCATED NEAR WABASHA...MOVING EAST AT 20 MPH.
THIS STORM CAN PRODUCE LARGE DAMAGING HAIL UP TO GOLF BALL SIZE AND 
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM HAS A HISTORY OF 
QUARTER TO GOLF BALL SIZED HAIL COVERING THE GROUND IN PARTS OF 
NORTH-CENTRAL WABASHA COUNTY. 

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  NELSON AROUND 925 PM...
  MISHA MOKWA AROUND 930 PM...
  ALMA AND HIGHWAYS 37 AND 35 AROUND 935 PM...
  COUNTY ROADS F AND K K AND TELL AROUND 945 PM...
  MODENA AROUND 955 PM...
  MONDOVI AND GILMANTON AROUND 1000 PM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS
STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE HAIL...WHICH CAN
SIGNIFICANTLY DAMAGE ROOFS...WINDOWS...SIDING AND VEHICLES. DAMAGING
WINDS ARE ALSO EXPECTED...WHICH WILL UPROOT TREES AND DOWN POWER
LINES. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

&&

LAT...LON 4427 9229 4434 9230 4439 9205 4441 9209
      4453 9205 4460 9173 4460 9153 4438 9153
      4436 9164
TIME...MOT...LOC 0215Z 259DEG 18KT 4441 9208
WIND...HAIL 60MPH 1.75IN

$$

RRS
074 
WWUS53 KARX 030225
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
925 PM CDT WED MAY 2 2012

MNC157-WIC011-030300-
/O.CON.KARX.SV.W.0008.000000T0000Z-120503T0300Z/
WABASHA MN-BUFFALO WI-
925 PM CDT WED MAY 2 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
BUFFALO AND EAST CENTRAL WABASHA COUNTIES UNTIL 1000 PM CDT...

AT 921 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM LOCATED NEAR NELSON...OR NEAR WABASHA...MOVING
EAST AT 30 MPH. THIS STORM CAN PRODUCE QUARTER SIZE HAIL AND DAMAGING
WINDS IN EXCESS OF 60 MPH. 

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  COUNTY ROADS F AND K K AROUND 930 PM...
  TELL AND URNE AROUND 935 PM...
  MODENA AROUND 940 PM...
  PRAAG AND THE BIG SWAMP AREA AROUND 945 PM...
  MONDOVI AND GILMANTON AROUND 955 PM...
  LOOKOUT AND MONDOVI AIRFIELD AROUND 1000 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 4429 9216 4437 9216 4439 9205 4441 9209
      4453 9205 4460 9173 4460 9153 4438 9153
      4436 9164
TIME...MOT...LOC 0225Z 259DEG 27KT 4443 9196
WIND...HAIL 60MPH 1.00IN

$$

RRS
661 
WWUS53 KARX 030237
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
937 PM CDT WED MAY 2 2012

MNC157-WIC011-030300-
/O.CON.KARX.SV.W.0008.000000T0000Z-120503T0300Z/
WABASHA MN-BUFFALO WI-
937 PM CDT WED MAY 2 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
BUFFALO AND EAST CENTRAL WABASHA COUNTIES UNTIL 1000 PM CDT...

AT 935 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM LOCATED NEAR TELL...OR NEAR ALMA...MOVING EAST AT
30 MPH. THIS STORM CAN PRODUCE LARGE DAMAGING HAIL UP TO GOLF BALL
SIZE AND DAMAGING WINDS IN EXCESS OF 60 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  MODENA AROUND 945 PM...
  PRAAG AROUND 950 PM...
  GILMANTON AROUND 955 PM...
  LOOKOUT AND MONDOVI AIRFIELD AROUND 1000 PM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS
STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE HAIL...WHICH CAN
SIGNIFICANTLY DAMAGE ROOFS...WINDOWS...SIDING AND VEHICLES. DAMAGING
WINDS ARE ALSO EXPECTED...WHICH WILL UPROOT TREES AND DOWN POWER
LINES. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.

&&

LAT...LON 4431 9203 4438 9199 4443 9197 4449 9192
      4456 9166 4460 9153 4438 9153 4436 9164
TIME...MOT...LOC 0238Z 270DEG 26KT 4440 9185
WIND...HAIL 60MPH 1.75IN

$$

RRS

The office that day

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

IssuedProductOfficeCountiesLasted
May 2, 7:29 PM CDTSevere Thunderstorm WarningARXWabasha, Winona38 min
May 2, 8:10 PM CDTSevere Thunderstorm WarningARXWabasha65 min
May 2, 8:51 PM CDTFlash Flood WarningARXWabasha6 hr
May 2, 9:13 PM CDTSevere Thunderstorm WarningARXWabasha17 min
May 2, 9:19 PM CDTSevere Thunderstorm WarningARXWabasha, Winona56 min
May 2, 9:33 PM CDTTornado WarningARXWabasha27 min
May 3, 6:43 AM CDTSevere Thunderstorm WarningARXFillmore, Houston, Winona47 min
May 2, 9:23 PM CDTSevere Thunderstorm WarningARXTrempealeau67 min
May 2, 9:53 PM CDTSevere Thunderstorm WarningARXTrempealeau52 min
May 2, 10:26 PM CDTSevere Thunderstorm WarningARXJackson30 min
May 3, 7:11 AM CDTSevere Thunderstorm WarningARXLa Crosse, Trempealeau, Vernon49 min
May 3, 7:45 AM CDTSevere Thunderstorm WarningARXAdams30 min
May 3, 8:09 AM CDTSevere Thunderstorm WarningARXRichland26 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2012Severe 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.