Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 39, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at Jun 8, 2011, 5:28 PM CDT for Grant County, Wisconsin. It was in force for 47 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
- Jun 8, 2011, 5:28 PM CDT (22:28 UTC)
- Expired
- Jun 8, 2011, 6:15 PM CDT
- In force
- 47 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Hail
- 1.75 in
- Wind
- 60.0 mph
County Grant County, WI
The radar
The La Crosse radar (KARX), 102 km from the middle of the area, began a volume at 22:30 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 |
|---|---|---|---|
| Jun 8, 5:38 PM CDT | HAIL 1 | Castle Rock, WI | WIND GUSTS TO 50 MPH/HEAVY RAIN |
| Jun 8, 5:48 PM CDT | HAIL 1.25 | 5 Nw Montfort, 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 |
|---|---|---|---|
| Jun 8, 4:49 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 10.5 hours before the alert went out and 153 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
- 1876 J/kg
- Mixed-layer CIN
- -225 J/kg
- Mixed-layer LCL
- 1404 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 76 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
311 WUUS53 KARX 082228 SVRARX WIC043-082315- /O.NEW.KARX.SV.W.0039.110608T2228Z-110608T2315Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LA CROSSE WI 528 PM CDT WED JUN 8 2011 THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN GRANT COUNTY IN SOUTHWEST WISCONSIN... * UNTIL 615 PM CDT * AT 525 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM LOCATED NEAR CASTLE ROCK...OR 14 MILES NORTHEAST OF LANCASTER...MOVING EAST AT 30 MPH. THIS STORM CAN PRODUCE LARGE DAMAGING HAIL UP TO GOLF BALL SIZE AND DAMAGING WINDS IN EXCESS OF 60 MPH. TRAINED WEATHER SPOTTERS HAVE ALREADY REPORTED GOLF BALL SIZE HAIL WITH THIS STORM. * THE SEVERE THUNDERSTORM WILL BE NEAR... RED OAK RIDGE AND MONTFORT AROUND 535 PM... PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE HAIL...WHICH CAN SIGNIFICANTLY DAMAGE ROOFS...WINDOWS...SIDING AND VEHICLES. DAMAGING WINDS ARE ALSO EXPECTED...WHICH WILL UPROOT TREES AND DOWN POWER LINES. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. && LAT...LON 4291 9079 4307 9079 4316 9042 4292 9042 TIME...MOT...LOC 2228Z 252DEG 28KT 4302 9053 WIND...HAIL 60MPH 1.75IN $$ JW
2 follow-up statements
954 WWUS53 KARX 082243 SVSARX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 543 PM CDT WED JUN 8 2011 WIC043-082315- /O.CON.KARX.SV.W.0039.000000T0000Z-110608T2315Z/ GRANT WI- 543 PM CDT WED JUN 8 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN GRANT COUNTY UNTIL 615 PM CDT... TRAINED WEATHER SPOTTERS REPORTED QUARTER SIZE HAIL AND WINDS OF 50 MPH IN CASTLE ROCK AT 538 PM CDT. AT 539 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM LOCATED NEAR CASTLE ROCK...OR 17 MILES NORTHEAST OF LANCASTER...MOVING EAST AT 30 MPH. THIS STORM CAN PRODUCE LARGE DAMAGING HAIL UP TO GOLF BALL SIZE AND DAMAGING WINDS IN EXCESS OF 60 MPH. * LOCATIONS IMPACTED INCLUDE... RED OAK RIDGE... PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS SITUATION. IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR DESTRUCTIVE HAIL...WHICH CAN SIGNIFICANTLY DAMAGE ROOFS...WINDOWS...SIDING AND VEHICLES. DAMAGING WINDS ARE ALSO EXPECTED...WHICH WILL UPROOT TREES AND DOWN POWER LINES. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM WEDNESDAY EVENING FOR NORTHEAST IOWA AND SOUTHWEST WISCONSIN. && LAT...LON 4291 9079 4307 9079 4316 9042 4292 9042 TIME...MOT...LOC 2242Z 251DEG 26KT 4304 9045 WIND...HAIL 60MPH 1.75IN $$ JW
195 WWUS53 KARX 082315 SVSARX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 615 PM CDT WED JUN 8 2011 WIC043-082326- /O.EXP.KARX.SV.W.0039.000000T0000Z-110608T2315Z/ GRANT WI- 615 PM CDT WED JUN 8 2011 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN GRANT COUNTY HAS EXPIRED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT WEDNESDAY EVENING FOR NORTHEAST IOWA AND SOUTHWEST WISCONSIN. LAT...LON 4291 9079 4307 9079 4316 9042 4292 9042 TIME...MOT...LOC 2243Z 251DEG 26KT 4304 9044 $$ JW
The office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 8, 4:53 PM CDT | Severe Thunderstorm Warning | ARX | Grant | 37 min |
| Jun 8, 6:02 PM CDT | Severe Thunderstorm Warning | ARX | Grant | 58 min |
| Jun 8, 6:38 PM CDT | Severe Thunderstorm Warning | ARX | Grant | 52 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.