Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 79, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at Jul 24, 2011, 12:37 AM CDT for 4 counties in Wisconsin. It was in force for 38 min. 7 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
- Jul 24, 2011, 12:37 AM CDT (05:37 UTC)
- Expired
- Jul 24, 2011, 1:15 AM CDT
- In force
- 38 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Clark County, WI, Jackson County, WI, Monroe County, WI, Trempealeau County, WI
The radar
The La Crosse radar (KARX), 68 km from the middle of the area, began a volume at 05:39 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 |
|---|---|---|---|
| Jul 24, 12:53 AM CDT | TSTM WND DMG | 1 E Alma Center, WI | TREE ACROSS HIGHWAY 95 JUST EAST OF ALMA CENTER. |
| Jul 24, 12:58 AM CDT | TSTM WND DMG | Merrillan, WI | TREES AND POWER LINES DOWN IN THE MERRILLAN AREA. |
| Jul 24, 1:01 AM CDT | TSTM WND DMG | 1 Nne Hatfield, WI | SEVERAL TREES DOWN IN CAMPGROUND. A FEW TREES FELL ON TENTS. NO INJURIES REPORTED. |
| Jul 24, 1:01 AM CDT | TSTM WND DMG | 2 Nne Hatfield, WI | TREE ACROSS THE ROAD NEAR THE INTERSECTION OF COUNTY ROAD J AND BUSH ROAD. |
| Jul 24, 1:02 AM CDT | TSTM WND GST 40 | 2 Ene Hatfield, WI | OFF DUTY NWS EMPLOYEE REPORTED A 40 MPH WIND GUST AT LAKE ARBUTUS. |
| Jul 24, 1:15 AM CDT | TSTM WND GST 55 | Black River Falls, WI | |
| Jul 24, 1:18 AM CDT | TSTM WND GST 50 | Cataract, WI |
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 |
|---|---|---|---|
| Jul 23, 6:36 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 00:00Z, 5.6 hours before the alert went out and 219 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
- 209 J/kg
- Mixed-layer CIN
- -185 J/kg
- Mixed-layer LCL
- 682 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 98 m²/s²
- 0-3 km storm-relative helicity
- 309 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.0
The text
As transmitted, in the capitals the NWS used until 2016.
450
WUUS53 KARX 240537
SVRARX
WIC019-053-081-121-240615-
/O.NEW.KARX.SV.W.0079.110724T0537Z-110724T0615Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
1237 AM CDT SUN JUL 24 2011
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHWESTERN CLARK COUNTY IN CENTRAL WISCONSIN...
JACKSON COUNTY IN WEST CENTRAL WISCONSIN...
NORTHWESTERN MONROE COUNTY IN WEST CENTRAL WISCONSIN...
EAST CENTRAL TREMPEALEAU COUNTY IN WEST CENTRAL WISCONSIN...
* UNTIL 115 AM CDT
* AT 1235 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SEVERE THUNDERSTORMS ROUGHLY ALONG A LINE EXTENDING FROM PRICE TO
10 MILES NORTHEAST OF WHITEHALL TO INDEPENDENCE...MOVING SOUTHEAST
AT 55 MPH. THESE STORMS CAN PRODUCE PENNY SIZE HAIL AND DAMAGING
WINDS IN EXCESS OF 60 MPH.
* THE SEVERE THUNDERSTORMS WILL BE NEAR...
BLAIR AROUND 1245 AM...
HATFIELD AROUND 1250 AM...
BLACK RIVER FALLS AND FRANKLIN AROUND 1255 AM...
MILLSTON AND CATARACT AROUND 110 AM...
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 4432 9034 4413 9054 4402 9081 4435 9148
4447 9121 4461 9107 4460 9093 4461 9092
TIME...MOT...LOC 0537Z 305DEG 46KT 4452 9096 4443 9111
4436 9134
WIND...HAIL 60MPH 0.75IN
$$
042 follow-up statements
338
WWUS53 KARX 240554
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
1254 AM CDT SUN JUL 24 2011
WIC019-053-081-121-240615-
/O.CON.KARX.SV.W.0079.000000T0000Z-110724T0615Z/
CLARK WI-JACKSON WI-MONROE WI-TREMPEALEAU WI-
1254 AM CDT SUN JUL 24 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EAST CENTRAL
TREMPEALEAU...NORTHWESTERN MONROE...JACKSON AND SOUTHWESTERN CLARK
COUNTIES UNTIL 115 AM CDT...
AT 1253 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WERE ROUGHLY ALONG A LINE EXTENDING FROM HATFIELD TO
BLACK RIVER FALLS TO FRANKLIN...MOVING SOUTHEAST AT 55 MPH. THESE
STORMS CAN PRODUCE PENNY SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60
MPH.
* THE SEVERE THUNDERSTORMS WILL BE NEAR...
MILLSTON AROUND 110 AM...
CATARACT AROUND 115 AM...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THESE STORMS...PREPARE IMMEDIATELY FOR
DAMAGING WINDS AND SMALL HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM SUNDAY
MORNING FOR SOUTHWESTERN WISCONSIN.
&&
LAT...LON 4432 9034 4413 9054 4402 9081 4435 9148
4447 9121 4461 9107 4460 9093 4461 9092
TIME...MOT...LOC 0554Z 305DEG 46KT 4439 9071 4430 9086
4424 9109
WIND...HAIL 60MPH 0.75IN
$$
04698
WWUS53 KARX 240604
SVSARX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
104 AM CDT SUN JUL 24 2011
WIC121-240613-
/O.CAN.KARX.SV.W.0079.000000T0000Z-110724T0615Z/
TREMPEALEAU WI-
104 AM CDT SUN JUL 24 2011
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL TREMPEALEAU
COUNTY IS CANCELLED...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE
WARNED AREA.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM CDT SUNDAY
MORNING FOR SOUTHWESTERN WISCONSIN.
LAT...LON 4425 9115 4441 9109 4450 9099 4459 9088
4432 9034 4413 9054 4402 9081
TIME...MOT...LOC 0603Z 305DEG 46KT 4434 9060 4424 9073
4411 9097
$$
WIC019-053-081-240615-
/O.CON.KARX.SV.W.0079.000000T0000Z-110724T0615Z/
CLARK WI-JACKSON WI-MONROE WI-
104 AM CDT SUN JUL 24 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHWESTERN
MONROE...JACKSON AND SOUTHWESTERN CLARK COUNTIES UNTIL 115 AM CDT...
LOCAL LAW ENFORCEMENT OFFICIALS REPORTED LOTS OF TREES DOWN NEAR
STATE HIGHWAY 95 AND COUNTY E AND ALONG HIGHWAY 12 WITH A LINE OF
SEVERE THUNDERSTORMS.
AT 1258 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WERE ROUGHLY ALONG A LINE EXTENDING FROM HATFIELD TO
BLACK RIVER FALLS TO NORTH BEND...MOVING SOUTHEAST AT 55 MPH. THESE
STORMS CAN PRODUCE PENNY SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60
MPH.
* THE SEVERE THUNDERSTORMS WILL BE NEAR...
MILLSTON AND CATARACT AROUND 110 AM...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THESE STORMS...PREPARE IMMEDIATELY FOR
DAMAGING WINDS AND SMALL HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM SUNDAY
MORNING FOR SOUTHWESTERN WISCONSIN.
&&
LAT...LON 4425 9115 4441 9109 4450 9099 4459 9088
4432 9034 4413 9054 4402 9081
TIME...MOT...LOC 0603Z 305DEG 46KT 4434 9060 4424 9073
4411 9097
WIND...HAIL 60MPH 0.75IN
$$
04The office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 11:53 PM CDT | Severe Thunderstorm Warning | ARX | Clark | 53 min |
| Jul 24, 1:14 AM CDT | Severe Thunderstorm Warning | ARX | Adams, Jackson, Juneau, La Crosse, Monroe | 61 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2011Every severe thunderstorm warning in 2011
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.