Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 88, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at Aug 15, 2012, 11:37 PM CDT for Buffalo County, Trempealeau County, Wisconsin; Wabasha County, Winona County, Minnesota. It was in force for 38 min. 1 report 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
- Aug 15, 2012, 11:37 PM CDT (04:37 UTC)
- Expired
- Aug 16, 2012, 12:15 AM CDT
- In force
- 38 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Wabasha County, MN, Winona County, MN, Buffalo County, WI, Trempealeau County, WI
The radar
The La Crosse radar (KARX), 77 km from the middle of the area, began a volume at 04:38 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 |
|---|---|---|---|
| Aug 16, 12:00 AM CDT | TSTM WND DMG | 2 Nnw Fountain City, WI | TREES DOWN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 4.6 hours before the alert went out and 151 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
- 700 J/kg
- Mixed-layer CIN
- -151 J/kg
- Mixed-layer LCL
- 1324 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 175 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 5.2
The text
As transmitted, in the capitals the NWS used until 2016.
536
WUUS53 KARX 160437
SVRARX
MNC157-169-WIC011-121-160515-
/O.NEW.KARX.SV.W.0088.120816T0437Z-120816T0515Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
1137 PM CDT WED AUG 15 2012
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
EASTERN WABASHA COUNTY IN SOUTHEAST MINNESOTA...
NORTHWESTERN WINONA COUNTY IN SOUTHEAST MINNESOTA...
CENTRAL BUFFALO COUNTY IN WEST CENTRAL WISCONSIN...
CENTRAL TREMPEALEAU COUNTY IN WEST CENTRAL WISCONSIN...
* UNTIL 1215 AM CDT
* AT 1134 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SEVERE THUNDERSTORMS ROUGHLY ALONG A LINE EXTENDING FROM ALMA TO
BUFFALO...MOVING EAST AT 40 MPH. THESE STORMS CAN PRODUCE QUARTER
SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH.
* THE SEVERE THUNDERSTORMS WILL BE NEAR...
MODENA AROUND 1140 PM...
ARCADIA AND INDEPENDENCE AROUND 1210 AM...
WHITEHALL AROUND 1215 AM...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THESE STORMS...PREPARE IMMEDIATELY FOR
LARGE HAIL AND DAMAGING WINDS. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.
&&
LAT...LON 4442 9209 4448 9207 4445 9130 4413 9134
4415 9213
TIME...MOT...LOC 0437Z 270DEG 34KT 4442 9187 4421 9190
WIND...HAIL 60MPH 1.00IN
$$
HALBACH1 follow-up statement
418 WWUS53 KARX 160452 SVSARX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 1152 PM CDT WED AUG 15 2012 MNC157-169-WIC011-121-160515- /O.CON.KARX.SV.W.0088.000000T0000Z-120816T0515Z/ WABASHA MN-WINONA MN-BUFFALO WI-TREMPEALEAU WI- 1152 PM CDT WED AUG 15 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL TREMPEALEAU...SOUTHERN BUFFALO...NORTHWESTERN WINONA AND EAST CENTRAL WABASHA COUNTIES UNTIL 1215 AM CDT... AT 1147 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM LOCATED NEAR HIGHWAY 88 AND COUNTY O...OR 9 MILES SOUTHEAST OF ALMA...MOVING EAST AT 40 MPH. THIS STORM CAN PRODUCE QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... HIGHWAY 95 AND COUNTY C AND WICKHAM VALLEY AROUND 1205 AM... ARCADIA AND INDEPENDENCE AROUND 1210 AM... WHITEHALL AND SQUARE BLUFF AROUND 1215 AM... PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. LIGHTNING AND FALLING TREES CAN KILL. CAMPING VEHICLES AND TENTS ARE NOT SAFE DURING THUNDERSTORMS. MOVE TO A PRE-DESIGNATED SHELTER IF AVAILABLE. IF NO STRONG SHELTER IS AVAILABLE...SEEK SHELTER IN A DEPRESSION OR RAVINE...BUT AVOID STREAM BEDS AND DRY WASHES. ASSUME THE LIGHTNING POSITION BY MINIMIZING YOUR HEIGHT AND CONTACT WITH THE GROUND. CROUCH LOW AND WRAP YOUR ARMS AROUND YOUR LEGS. && LAT...LON 4438 9188 4445 9130 4413 9134 4415 9213 TIME...MOT...LOC 0452Z 276DEG 35KT 4426 9171 WIND...HAIL 60MPH 1.00IN $$ HALBACH
The office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 12:03 AM CDT | Severe Thunderstorm Warning | ARX | Buffalo, Trempealeau | 27 min |
| Aug 16, 12:29 AM CDT | Severe Thunderstorm Warning | ARX | Jackson, La Crosse, Monroe, Trempealeau | 46 min |
| Aug 16, 1:08 AM CDT | Severe Thunderstorm Warning | ARX | Monroe, Vernon | 37 min |
| Aug 16, 3:09 AM CDT | Severe Thunderstorm Warning | ARX | Adams, Juneau | 36 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2012Severe 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.