Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 23, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at Jun 11, 2021, 6:38 PM CDT for Monroe County, Vernon County, Wisconsin. It was in force for 37 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
- Jun 11, 2021, 6:38 PM CDT (23:38 UTC)
- Expired
- Jun 11, 2021, 7:15 PM CDT
- In force
- 37 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Monroe County, WI, Vernon County, WI
The radar
The La Crosse radar (KARX), 42 km from the middle of the area, began a volume at 23:40 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 nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 11.6 hours before the alert went out and 225 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
- 1468 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 75 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
929
WUUS53 KARX 112338
SVRARX
WIC081-123-120015-
/O.NEW.KARX.SV.W.0023.210611T2338Z-210612T0015Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service La Crosse WI
638 PM CDT Fri Jun 11 2021
The National Weather Service in La Crosse has issued a
* Severe Thunderstorm Warning for...
North central Vernon County in southwestern Wisconsin...
Southern Monroe County in west central Wisconsin...
* Until 715 PM CDT.
* At 637 PM CDT, a severe thunderstorm was located near Cashton, or
11 miles northeast of Viroqua, moving northeast at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* This severe thunderstorm will remain over mainly rural areas of
north central Vernon and southern Monroe Counties, including the
following locations... Oil City, Jersey Valley County Park, St
Marys, Wilton, Avalanche, Norwalk and Melvina.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4357 9070 4361 9088 4389 9081 4388 9040
TIME...MOT...LOC 2337Z 231DEG 25KT 4370 9075
HAIL...1.00IN
WIND...60MPH
$$
Wetenkamp2 follow-up statements
608 WWUS53 KARX 112348 SVSARX Severe Weather Statement National Weather Service La Crosse WI 648 PM CDT Fri Jun 11 2021 WIC081-123-120015- /O.CON.KARX.SV.W.0023.000000T0000Z-210612T0015Z/ Vernon WI-Monroe WI- 648 PM CDT Fri Jun 11 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR NORTH CENTRAL VERNON AND SOUTHERN MONROE COUNTIES... At 648 PM CDT, a severe thunderstorm was located near Cashton, or 15 miles southeast of Sparta, moving northeast at 30 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Westby, Cashton, Norwalk, Ontario, Wilton, Ridgeville, Melvina, Oil City, Jersey Valley County Park, St Marys, Avalanche, County Roads D And P, Highway 82 And County D, Irish Ridge, Potts Corners, Newry and Bloomingdale. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4357 9070 4361 9088 4389 9081 4388 9040 TIME...MOT...LOC 2348Z 231DEG 25KT 4375 9067 HAIL...0.75IN WIND...60MPH $$ Wetenkamp
652
WWUS53 KARX 120010
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
710 PM CDT Fri Jun 11 2021
WIC081-123-120019-
/O.EXP.KARX.SV.W.0023.000000T0000Z-210612T0015Z/
Vernon WI-Monroe WI-
710 PM CDT Fri Jun 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL VERNON AND
SOUTHERN MONROE COUNTIES WILL EXPIRE AT 715 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds are still possible with this thunderstorm.
LAT...LON 4357 9070 4361 9088 4389 9081 4388 9040
TIME...MOT...LOC 0009Z 231DEG 25KT 4384 9052
$$
WetenkampThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 1:34 PM CDT | Special Weather Statement | ARX | Jackson | 26 min |
| Jun 11, 1:49 PM CDT | Severe Thunderstorm Warning | ARX | Clark, Taylor | 26 min |
| Jun 11, 2:07 PM CDT | Special Weather Statement | ARX | Taylor | 23 min |
| Jun 11, 2:23 PM CDT | Special Weather Statement | ARX | Juneau | 37 min |
| Jun 11, 2:24 PM CDT | Special Weather Statement | ARX | Taylor | 36 min |
| Jun 11, 2:50 PM CDT | Special Weather Statement | ARX | Adams | 25 min |
| Jun 11, 2:57 PM CDT | Special Weather Statement | ARX | Adams | 33 min |
| Jun 11, 3:43 PM CDT | Special Weather Statement | ARX | Adams | 32 min |
| Jun 11, 6:30 PM CDT | Special Weather Statement | ARX | Clark, Crawford, Jackson, La Crosse, Monroe, Richland and 2 more | 60 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2021Every severe thunderstorm warning in 2021
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.