Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 53, NWS La Crosse, WI

June 14, 2012Olmsted County, Wabasha County, Winona County, Minnesota

NWS La Crosse, WI issued this severe thunderstorm warning at Jun 14, 2012, 7:50 PM CDT for Olmsted County, Wabasha County, Winona County, Minnesota. It was in force for 25 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
Jun 14, 2012, 7:50 PM CDT (00:50 UTC)
Expired
Jun 14, 2012, 8:15 PM CDT
In force
25 min
Issued by
NWS La Crosse, WI
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Olmsted County, MN, Wabasha County, MN, Winona County, MN

The radar

The La Crosse radar (KARX), 76 km from the middle of the area, began a volume at 00:51 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
Jun 14, 8:00 PM CDTTSTM WND DMGElgin, MNLARGE BRANCHES DOWN IN TOWN
Jun 14, 8:00 PM CDTTSTM WND GST 502 Ssw Elgin, MN
Jun 14, 8:05 PM CDTTSTM WND DMGPlainview, MNBRANCHES DOWN IN TOWN AND BETWEEN ELGIN AND PLAINVIEW
Jun 14, 8:05 PM CDTTSTM WND GST 40Plainview, MN

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
Jun 14, 2:45 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 00:00Z, 0.8 hours before the alert went out and 148 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 2012-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1087 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 2012-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 307 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
1087 J/kg
Mixed-layer CIN
-99 J/kg
Mixed-layer LCL
751 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
307 m²/s²
0-3 km storm-relative helicity
337 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.5

Open this sounding in Storm Lab

The text

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

640 
WUUS53 KARX 150050
SVRARX
MNC109-157-169-150115-
/O.NEW.KARX.SV.W.0053.120615T0050Z-120615T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
750 PM CDT THU JUN 14 2012

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  OLMSTED COUNTY IN SOUTHEAST MINNESOTA...
  SOUTHEASTERN WABASHA COUNTY IN SOUTHEAST MINNESOTA...
  WESTERN WINONA COUNTY IN SOUTHEAST MINNESOTA...

* UNTIL 815 PM CDT

* AT 747 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SEVERE THUNDERSTORMS ROUGHLY ALONG A LINE EXTENDING FROM PLAINVIEW
  TO ROCHESTER...MOVING EAST AT 45 MPH. THESE STORMS CAN PRODUCE
  PENNY SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH.  

* THE SEVERE THUNDERSTORMS WILL BE NEAR...
  PLAINVIEW AROUND 755 PM...
  EYOTA AROUND 800 PM...
  DOVER AROUND 805 PM...
  ST. CHARLES AND ALTURA AROUND 810 PM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4423 9227 4424 9189 4421 9188 4416 9180
      4408 9183 4384 9194 4384 9211 4401 9256
TIME...MOT...LOC 0050Z 289DEG 41KT 4427 9219 4395 9238
WIND...HAIL 60MPH 0.75IN

$$

JW
2 follow-up statements
002 
WWUS53 KARX 150107
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
807 PM CDT THU JUN 14 2012

MNC109-157-169-150115-
/O.CON.KARX.SV.W.0053.000000T0000Z-120615T0115Z/
OLMSTED MN-WABASHA MN-WINONA MN-
807 PM CDT THU JUN 14 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN
WINONA...SOUTHEASTERN WABASHA AND OLMSTED COUNTIES UNTIL 815 PM
CDT...

AT 805 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WERE ROUGHLY ALONG A LINE EXTENDING FROM PLAINVIEW TO
EYOTA...MOVING EAST AT 45 MPH. THESE STORMS CAN PRODUCE PENNY SIZE
HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH.

* THE SEVERE THUNDERSTORMS WILL BE NEAR...
  ALTURA AROUND 815 PM...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM THURSDAY
EVENING FOR SOUTHEAST MINNESOTA AND WEST CENTRAL WISCONSIN.

&&

LAT...LON 4423 9227 4424 9190 4421 9188 4416 9181
      4408 9183 4384 9194 4384 9212 4401 9256
TIME...MOT...LOC 0107Z 289DEG 41KT 4421 9206 4392 9222
WIND...HAIL 60MPH 0.75IN

$$

JW
581 
WWUS53 KARX 150117
SVSARX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
817 PM CDT THU JUN 14 2012

MNC109-157-169-150127-
/O.EXP.KARX.SV.W.0053.000000T0000Z-120615T0115Z/
OLMSTED MN-WABASHA MN-WINONA MN-
817 PM CDT THU JUN 14 2012

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN WINONA...SOUTHEASTERN
WABASHA AND OLMSTED COUNTIES HAS EXPIRED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW
SEVERE LIMITS. HOWEVER...THE LINE OF STORMS REMAINS STRONG AND COULD
PRODUCE SMALL HAIL AND GUSTY WINDS...IN ADDITION TO LIGHTNING AND
HEAVY RAIN.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
THURSDAY EVENING FOR SOUTHEAST MINNESOTA AND WEST CENTRAL WISCONSIN.

LAT...LON 4423 9227 4424 9190 4421 9188 4416 9181
      4408 9183 4384 9194 4384 9212 4401 9256
TIME...MOT...LOC 0107Z 289DEG 41KT 4421 9206 4392 9222

$$

JW

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 7:09 PM CDTSevere Thunderstorm WarningARXDodge, Olmsted, Wabasha49 min
Jun 14, 7:19 PM CDTFlash Flood WarningARXWabasha3 hr

Nearby

Severe Thunderstorm Warnings in Minnesota, 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.