Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 36, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at May 24, 2012, 4:27 PM CDT for Fillmore County, Houston County, Winona County, Minnesota; Winneshiek County, Iowa; Buffalo County, Wisconsin. It was in force for 33 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 24, 2012, 4:27 PM CDT (21:27 UTC)
- Expired
- May 24, 2012, 5:00 PM CDT
- In force
- 33 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
Counties Winneshiek County, IA, Fillmore County, MN, Houston County, MN, Winona County, MN, Buffalo County, WI
The radar
The La Crosse radar (KARX), 37 km from the middle of the area, began a volume at 21:28 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
| Time | Report | Where | Remark |
|---|---|---|---|
| May 24, 4:38 PM CDT | TSTM WND GST 50 | 2 Ne Bratsberg, MN | |
| May 24, 5:05 PM CDT | TSTM WND DMG | Winona, MN | WIDESPREAD TREE DAMAGE IN WINONA. |
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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 24, 2:22 PM CDT | Tornado Watch | SPC | 5 hr |
| May 24, 3:30 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 9.5 hours before the alert went out and 187 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.
- Mixed-layer CAPE
- 13 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 668 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 6 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
677
WUUS53 KARX 242127
SVRARX
IAC191-MNC045-055-169-WIC011-242200-
/O.NEW.KARX.SV.W.0036.120524T2127Z-120524T2200Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
427 PM CDT THU MAY 24 2012
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHWESTERN WINNESHIEK COUNTY IN NORTHEAST IOWA...
EASTERN FILLMORE COUNTY IN SOUTHEAST MINNESOTA...
NORTHWESTERN HOUSTON COUNTY IN SOUTHEAST MINNESOTA...
SOUTHEASTERN WINONA COUNTY IN SOUTHEAST MINNESOTA...
SOUTHEASTERN BUFFALO COUNTY IN WEST CENTRAL WISCONSIN...
* UNTIL 500 PM CDT
* AT 423 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SEVERE THUNDERSTORMS ROUGHLY ALONG A LINE EXTENDING FROM LANESBORO
TO HARMONY...MOVING NORTHEAST AT 65 MPH. THESE STORMS CAN PRODUCE
NICKEL SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH. TRAINED
WEATHER SPOTTERS HAVE ALREADY REPORTED WINDS OF 60 MPH WITH THESE
STORMS. THIS WARNING EXTENDS THE PREVIOUS SEVERE THUNDERSTORM
WARNING FOR WINNESHIEK...FILLMORE...HOUSTON...WINONA AND BUFFALO
COUNTIES.
* THE SEVERE THUNDERSTORMS WILL BE NEAR...
RUSHFORD AROUND 435 PM...
HOUSTON AROUND 445 PM...
WINONA AROUND 450 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.
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. SEVERE
THUNDERSTORMS OCCASIONALLY PRODUCE TORNADOES...AND CAN DO SO QUICKLY.
MOVE INTO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR
BUSINESS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM THURSDAY EVENING FOR
SOUTHEAST MINNESOTA AND WESTERN WISCONSIN.
&&
LAT...LON 4384 9196 4414 9156 4409 9154 4404 9157
4402 9155 4402 9151 4401 9145 4394 9136
4385 9137 4340 9208
TIME...MOT...LOC 2127Z 223DEG 58KT 4374 9189 4356 9195
WIND...HAIL 60MPH 0.88IN
$$
041 follow-up statement
886
WWUS53 KARX 242140
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
440 PM CDT THU MAY 24 2012
IAC191-242150-
/O.CAN.KARX.SV.W.0036.000000T0000Z-120524T2200Z/
WINNESHIEK IA-
440 PM CDT THU MAY 24 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN WINNESHIEK COUNTY
IS CANCELLED...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE
WARNED AREA.
A TORNADO WATCH REMAINS IN EFFECT. CONDITIONS REMAIN FAVORABLE FOR
ADDITIONAL SEVERE THUNDERSTORMS TO DEVELOP THAT MAY PRODUCE
TORNADOES.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT THURSDAY EVENING
FOR SOUTHEAST MINNESOTA AND WESTERN WISCONSIN. A SEVERE THUNDERSTORM
WATCH ALSO REMAINS IN EFFECT UNTIL 1000 PM CDT THURSDAY EVENING FOR
NORTHEAST IOWA AND SOUTHWEST WISCONSIN.
LAT...LON 4414 9156 4409 9154 4404 9157 4402 9155
4400 9144 4394 9137 4385 9137 4351 9191
4351 9192 4384 9196
TIME...MOT...LOC 2140Z 223DEG 58KT 4389 9168 4365 9178
$$
MNC045-055-169-WIC011-242200-
/O.CON.KARX.SV.W.0036.000000T0000Z-120524T2200Z/
FILLMORE MN-HOUSTON MN-WINONA MN-BUFFALO WI-
440 PM CDT THU MAY 24 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
BUFFALO...SOUTHEASTERN WINONA...NORTHWESTERN HOUSTON AND EASTERN
FILLMORE COUNTIES UNTIL 500 PM CDT...
AT 437 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WERE ROUGHLY ALONG A LINE EXTENDING FROM RUSHFORD TO
MABEL...MOVING NORTHEAST AT 65 MPH. THESE STORMS CAN PRODUCE NICKEL
SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH.
* THE SEVERE THUNDERSTORMS WILL BE NEAR...
WINONA AND HOUSTON AROUND 450 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 TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. SEVERE
THUNDERSTORMS OCCASIONALLY PRODUCE TORNADOES...AND CAN DO SO QUICKLY.
MOVE INTO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR
BUSINESS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM THURSDAY EVENING FOR
SOUTHEAST MINNESOTA AND WESTERN WISCONSIN.
&&
LAT...LON 4414 9156 4409 9154 4404 9157 4402 9155
4400 9144 4394 9137 4385 9137 4351 9191
4351 9192 4384 9196
TIME...MOT...LOC 2140Z 223DEG 58KT 4389 9168 4365 9178
WIND...HAIL 60MPH <.50IN
$$
04The office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 3:11 AM CDT | Wind Advisory | ARX | Houston, Winona | 16 hr |
| May 24, 3:57 PM CDT | Severe Thunderstorm Warning | ARX | Fillmore, Houston, Winona | 48 min |
| May 24, 5:00 PM CDT | Severe Thunderstorm Warning | ARX | Winona | 35 min |
| May 24, 3:13 PM CDT | Severe Thunderstorm Warning | ARX | Floyd | 32 min |
| May 24, 4:53 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Clayton, Fayette, Winneshiek | 37 min |
| May 24, 4:46 PM CDT | Severe Thunderstorm Warning | ARX | Buffalo, Jackson, Trempealeau | 29 min |
| May 24, 5:16 PM CDT | Severe Thunderstorm Warning | ARX | Taylor | 29 min |
| May 24, 5:26 PM CDT | Severe Thunderstorm Warning | ARX | Clark, Jackson | 49 min |
| May 24, 5:36 PM CDT | Severe Thunderstorm Warning | ARX | Clark, Taylor | 39 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2012Severe Thunderstorm Warnings in Iowa, 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.