Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 89, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at Aug 16, 2012, 12:03 AM CDT for Winona County, Minnesota; Buffalo County, Trempealeau County, Wisconsin. It was in force for 27 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
- Aug 16, 2012, 12:03 AM CDT (05:03 UTC)
- Expired
- Aug 16, 2012, 12:30 AM CDT
- In force
- 27 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Winona County, MN, Buffalo County, WI, Trempealeau County, WI
The radar
The La Crosse radar (KARX), 37 km from the middle of the area, began a volume at 05:04 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, 12:09 AM CDT | TSTM WND DMG | 5 N Winona, WI | LARGE TREE DOWN ON COUNTY ROAD M NEAR THE INTERSECTION OF COUNTY ROAD YY. |
| Aug 16, 12:20 AM CDT | HAIL 1 | 1 Nw Trempealeau, WI | QUARTER SIZED HAIL FOR 15 MINUTES AT PERROT STATE PARK |
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, 5.1 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
- 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.
615
WUUS53 KARX 160503
SVRARX
MNC169-WIC011-121-160530-
/O.NEW.KARX.SV.W.0089.120816T0503Z-120816T0530Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
1203 AM CDT THU AUG 16 2012
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN WINONA COUNTY IN SOUTHEAST MINNESOTA...
SOUTHEASTERN BUFFALO COUNTY IN WEST CENTRAL WISCONSIN...
SOUTHWESTERN TREMPEALEAU COUNTY IN WEST CENTRAL WISCONSIN...
* UNTIL 1230 AM CDT
* AT MIDNIGHT CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A SEVERE THUNDERSTORM LOCATED NEAR MINNESOTA CITY...OR 6 MILES
NORTHWEST OF WINONA...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...
BLUFF SIDING AND DODGE AROUND 1210 AM...
MARSHLAND AROUND 1215 AM...
CENTERVILLE AND PERROT STATE PARK AROUND 1220 AM...
TREMPEALEAU AND LOCK AND DAM 6 AROUND 1225 AM...
GALESVILLE AND FRENCHVILLE AROUND 1230 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.
&&
LAT...LON 4406 9195 4416 9184 4415 9128 4407 9130
4402 9134 4400 9133 4398 9133 4398 9143
TIME...MOT...LOC 0503Z 280DEG 35KT 4411 9170
WIND...HAIL 60MPH 1.00IN
$$
HALBACH1 follow-up statement
185
WWUS53 KARX 160517
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
1217 AM CDT THU AUG 16 2012
MNC169-WIC011-121-160530-
/O.CON.KARX.SV.W.0089.000000T0000Z-120816T0530Z/
WINONA MN-BUFFALO WI-TREMPEALEAU WI-
1217 AM CDT THU AUG 16 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
TREMPEALEAU...SOUTHEASTERN BUFFALO AND CENTRAL WINONA COUNTIES UNTIL
1230 AM CDT...
AT 1213 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM LOCATED NEAR MARSHLAND...OR NEAR WINONA...MOVING
EAST AT 40 MPH. THIS STORM CAN PRODUCE QUARTER SIZE HAIL AND DAMAGING
WINDS IN EXCESS OF 60 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
GALESVILLE AND TREMPEALEAU AROUND 1225 AM...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE
HAIL AND DAMAGING WINDS. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE
AND STAY AWAY FROM WINDOWS.
LIGHTNING AND FALLING TREES CAN KILL. CAMPING VEHICLES AND TENTS ARE
NOT SAFE DURING THUNDERSTORMS. MOVE TO A PRE-DESIGNATED SHELTER IF
AVAILABLE. IF NO STRONG SHELTER IS AVAILABLE...SEEK SHELTER IN A
DEPRESSION OR RAVINE...BUT AVOID STREAM BEDS AND DRY WASHES. ASSUME
THE LIGHTNING POSITION BY MINIMIZING YOUR HEIGHT AND CONTACT WITH THE
GROUND. CROUCH LOW AND WRAP YOUR ARMS AROUND YOUR LEGS.
&&
LAT...LON 4416 9169 4415 9128 4407 9130 4402 9134
4399 9133 4398 9143 4403 9177 4404 9177
TIME...MOT...LOC 0517Z 280DEG 35KT 4408 9151
WIND...HAIL 60MPH 1.00IN
$$
HALBACHThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 15, 11:37 PM CDT | Severe Thunderstorm Warning | ARX | Wabasha, Winona | 38 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.