Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 24, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at May 4, 2012, 6:46 PM CDT for Mower County, Minnesota. It was in force for 44 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
- May 4, 2012, 6:46 PM CDT (23:46 UTC)
- Expired
- May 4, 2012, 7:30 PM CDT
- In force
- 44 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Mower County, MN
The radar
The La Crosse radar (KARX), 137 km from the middle of the area, began a volume at 23:48 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 4, 6:01 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 11.8 hours before the alert went out and 155 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1101 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- -52 m²/s²
- 0-3 km storm-relative helicity
- 15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
737
WUUS53 KARX 042346
SVRARX
MNC099-050030-
/O.NEW.KARX.SV.W.0024.120504T2346Z-120505T0030Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
646 PM CDT FRI MAY 4 2012
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN MOWER COUNTY IN SOUTHEAST MINNESOTA...
* UNTIL 730 PM CDT
* AT 639 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM LOCATED NEAR RIVERBEND CAMPGROUND...OR 14 MILES
SOUTH OF AUSTIN...MOVING NORTHEAST AT 35 MPH. THIS STORM CAN
PRODUCE QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH.
THE STORMS HAVE A HISTORY OF 55 TO 65 MPH WINDS AND FUNNEL CLOUDS.
SEEK SHELTER FROM THIS STORM.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
LYLE AND VARCO AROUND 650 PM...
COUNTY ROADS 56 AND 5 AROUND 700 PM...
ROSE CREEK AND JOHNSBURG AROUND 705 PM...
ADAMS AROUND 710 PM...
TAOPI AROUND 715 PM...
THE HIGHEST THREAT FOR DAMAGING WINDS FROM THIS STORM WILL BE IN
SOUTHEST MOWER COUNTY.
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.
THE HAZARDOUS STORMS ARE EXPECTED TO REMAIN IN THE SOUTHERN PORTION
OF MOWER COUNTY. THE STORMS WILL WEAKEN AS THEY MOVE NORTHEAST.
&&
LAT...LON 4365 9263 4350 9255 4350 9302 4349 9304
4352 9306 4364 9306
TIME...MOT...LOC 2343Z 246DEG 31KT 4349 9302
WIND...HAIL 60MPH 1.00IN
$$
BAUMGARDT2 follow-up statements
420
WWUS53 KARX 042358
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
658 PM CDT FRI MAY 4 2012
MNC099-050030-
/O.CON.KARX.SV.W.0024.000000T0000Z-120505T0030Z/
MOWER MN-
658 PM CDT FRI MAY 4 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN MOWER
COUNTY UNTIL 730 PM CDT...
AT 653 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM LOCATED NEAR LYLE...OR 11 MILES SOUTH OF
AUSTIN...MOVING NORTHEAST AT 35 MPH. THIS STORM CAN PRODUCE PENNY
SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH. REPORTS OF 50 TO
55 MPH WINDS WERE RECEIVED WITH THIS STORM NEAR MASON CITY.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
ROSE CREEK AND JOHNSBURG AROUND 705 PM...
ADAMS AROUND 710 PM...
TAOPI AROUND 715 PM...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR
DAMAGING WINDS AND SMALL HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.
&&
LAT...LON 4365 9263 4350 9255 4350 9302 4349 9304
4352 9306 4364 9306
TIME...MOT...LOC 2356Z 246DEG 31KT 4354 9288
WIND...HAIL 60MPH 0.75IN
$$
BAUMGARDT474 WWUS53 KARX 050020 SVSARX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 720 PM CDT FRI MAY 4 2012 MNC099-050030- /O.CON.KARX.SV.W.0024.000000T0000Z-120505T0030Z/ MOWER MN- 720 PM CDT FRI MAY 4 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL MOWER COUNTY UNTIL 730 PM CDT... WINDS OF 40-50 MPH WERE REPORTED IN AUSTIN AND PARTS SOUTH WITH THESE STORMS. AT 716 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM LOCATED NEAR TAOPI...OR 16 MILES EAST OF AUSTIN...MOVING NORTHEAST AT 35 MPH. THIS STORM CAN PRODUCE PENNY SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH. ANOTHER SEVERE THUNDERSTORM WARNING WILL CONTINUE UNTIL 800 PM FOR SOUTHEAST MOWER COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR DAMAGING WINDS AND SMALL HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. && LAT...LON 4350 9255 4351 9276 4364 9289 4365 9263 TIME...MOT...LOC 0018Z 246DEG 31KT 4362 9264 WIND...HAIL 60MPH 0.75IN $$ BAUMGARDT
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.