Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 36, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at Jun 17, 2021, 9:09 PM CDT for Buffalo County, Wisconsin; Winona County, Minnesota. It was in force for 51 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 17, 2021, 9:09 PM CDT (02:09 UTC)
- Expired
- Jun 17, 2021, 10:00 PM CDT
- In force
- 51 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Hail
- 2.5 in
- Wind
- 50.0 mph
Counties Winona County, MN, Buffalo County, WI
The radar
The La Crosse radar (KARX), 63 km from the middle of the area, began a volume at 02:09 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 17, 3:50 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 2.2 hours before the alert went out and 162 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
- 61 J/kg
- Mixed-layer CIN
- -387 J/kg
- Mixed-layer LCL
- 1555 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- -13 m²/s²
- 0-3 km storm-relative helicity
- 56 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
203
WUUS53 KARX 180209
SVRARX
MNC169-WIC011-180300-
/O.NEW.KARX.SV.W.0036.210618T0209Z-210618T0300Z/
BULLETIN - EAS ACTIVATION REQUESTED
Severe Thunderstorm Warning
National Weather Service La Crosse WI
909 PM CDT Thu Jun 17 2021
The National Weather Service in La Crosse has issued a
* Severe Thunderstorm Warning for...
North central Winona County in southeastern Minnesota...
Southern Buffalo County in west central Wisconsin...
* Until 1000 PM CDT.
* At 909 PM CDT, a severe thunderstorm was located over Kellogg, or
near Alma, moving east at 45 mph.
HAZARD...Tennis ball size hail.
SOURCE...Trained weather spotters.
IMPACT...People and animals outdoors will be injured. Expect
damage to roofs, siding, windows, and vehicles.
* This severe thunderstorm will be near...
Buffalo and Buffalo City around 915 PM CDT.
Fountain City around 930 PM CDT.
Other locations impacted by this severe thunderstorm include
Waumandee, Czechville, Merrick State Park, Highway 95 And County G,
Lock And Dam 5 A, Dodge and Cream.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4420 9186 4423 9189 4427 9190 4429 9193
4431 9191 4433 9192 4436 9197 4439 9203
4432 9153 4425 9153 4421 9160 4418 9160
4417 9161 4414 9156 4410 9154 4404 9157
4402 9154 4419 9206
TIME...MOT...LOC 0209Z 284DEG 40KT 4428 9197
HAIL...2.50IN
WIND...<50MPH
$$
JSB4 follow-up statements
198
WWUS53 KARX 180231
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
931 PM CDT Thu Jun 17 2021
MNC169-WIC011-180300-
/O.CON.KARX.SV.W.0036.000000T0000Z-210618T0300Z/
Winona MN-Buffalo WI-
931 PM CDT Thu Jun 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT
FOR NORTH CENTRAL WINONA AND SOUTHERN BUFFALO COUNTIES...
At 931 PM CDT, a severe thunderstorm was located near Alma, moving
east at 55 mph.
HAZARD...Golf ball size hail.
SOURCE...Trained weather spotters.
IMPACT...People and animals outdoors will be injured. Expect damage
to roofs, siding, windows, and vehicles.
This severe thunderstorm will remain over mainly rural areas of north
central Winona and southern Buffalo Counties, including the following
locations... Waumandee, Czechville, Merrick State Park, Highway 95
And County G, Lock And Dam 5 A, Dodge and Cream.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4420 9186 4423 9189 4427 9190 4429 9193
4431 9191 4433 9192 4436 9197 4439 9203
4432 9153 4425 9153 4421 9160 4418 9160
4417 9161 4414 9156 4410 9154 4404 9157
4402 9154 4419 9206
TIME...MOT...LOC 0231Z 285DEG 46KT 4431 9187
HAIL...1.75IN
WIND...<50MPH
$$
JSB672
WWUS53 KARX 180237
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
937 PM CDT Thu Jun 17 2021
MNC169-WIC011-180300-
/O.CON.KARX.SV.W.0036.000000T0000Z-210618T0300Z/
Winona MN-Buffalo WI-
937 PM CDT Thu Jun 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT
FOR NORTH CENTRAL WINONA AND SOUTHERN BUFFALO COUNTIES...
At 936 PM CDT, a severe thunderstorm was located over Fountain City,
or near Winona, moving southeast at 45 mph.
HAZARD...Ping pong ball size hail.
SOURCE...Trained weather spotters.
IMPACT...People and animals outdoors will be injured. Expect damage
to roofs, siding, windows, and vehicles.
Locations impacted include...
Winona, Wabasha, Alma, Buffalo, Goodview, Buffalo City, Fountain
City, Dodge, Waumandee, Cochrane, Minnesota City, Minneiska,
Czechville, Merrick State Park, Lock And Dam 5 A, Cream, Highway 88
And County O, Whitman, Bluff Siding and Highway 95 And County G.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4420 9186 4423 9188 4427 9190 4429 9193
4431 9191 4433 9192 4436 9197 4439 9203
4432 9153 4425 9153 4421 9160 4418 9160
4417 9161 4414 9156 4410 9154 4404 9157
4402 9154 4413 9189
TIME...MOT...LOC 0236Z 292DEG 41KT 4414 9165
HAIL...1.50IN
WIND...<50MPH
$$
JSB883
WWUS53 KARX 180241
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
941 PM CDT Thu Jun 17 2021
MNC169-180251-
/O.CAN.KARX.SV.W.0036.000000T0000Z-210618T0300Z/
Winona MN-
941 PM CDT Thu Jun 17 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL WINONA COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for
southeastern Minnesota...and west central Wisconsin.
LAT...LON 4439 9203 4432 9153 4425 9153 4421 9160
4417 9161 4414 9156 4410 9154 4404 9157
4403 9156 4406 9164 4410 9168 4410 9171
4413 9173 4416 9180 4420 9186 4427 9190
4429 9193 4431 9191 4433 9192 4436 9197
TIME...MOT...LOC 0241Z 284DEG 40KT 4413 9157
$$
WIC011-180300-
/O.CON.KARX.SV.W.0036.000000T0000Z-210618T0300Z/
Buffalo WI-
941 PM CDT Thu Jun 17 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT
FOR SOUTHERN BUFFALO COUNTY...
At 941 PM CDT, a severe thunderstorm was located near Fountain City,
or near Winona, moving east at 45 mph.
HAZARD...Ping pong ball size hail.
SOURCE...Trained weather spotters.
IMPACT...People and animals outdoors will be injured. Expect damage
to roofs, siding, windows, and vehicles.
Locations impacted include...
Winona, Wabasha, Alma, Buffalo, Buffalo City, Fountain City, Dodge,
Waumandee, Cochrane, Czechville, Merrick State Park, Highway 95 And
County G, Cream, Marshland, Highway 88 And County O, Highway 95 And
County C, Lock And Dam 4, Herold, Highways 37 And 35 and Bluff
Siding.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4439 9203 4432 9153 4425 9153 4421 9160
4417 9161 4414 9156 4410 9154 4404 9157
4403 9156 4406 9164 4410 9168 4410 9171
4413 9173 4416 9180 4420 9186 4427 9190
4429 9193 4431 9191 4433 9192 4436 9197
TIME...MOT...LOC 0241Z 284DEG 40KT 4413 9157
HAIL...1.50IN
WIND...<50MPH
$$
JSB054
WWUS53 KARX 180251
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
951 PM CDT Thu Jun 17 2021
WIC011-180301-
/O.EXP.KARX.SV.W.0036.000000T0000Z-210618T0300Z/
Buffalo WI-
951 PM CDT Thu Jun 17 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN BUFFALO COUNTY WILL
EXPIRE AT 1000 PM CDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for
southeastern Minnesota...and west central Wisconsin.
LAT...LON 4439 9203 4432 9153 4425 9153 4421 9160
4417 9161 4414 9156 4410 9154 4404 9157
4403 9156 4406 9164 4410 9168 4410 9171
4413 9173 4416 9180 4420 9186 4427 9190
4429 9193 4431 9191 4433 9192 4436 9197
TIME...MOT...LOC 0251Z 284DEG 40KT 4411 9144
$$
JSBThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 7:24 PM CDT | Severe Thunderstorm Warning | ARX | Clark | 40 min |
| Jun 17, 7:39 PM CDT | Special Weather Statement | ARX | Jackson | 36 min |
| Jun 17, 7:54 PM CDT | Severe Thunderstorm Warning | ARX | Clark, Jackson | 20 min |
| Jun 17, 8:27 PM CDT | Severe Thunderstorm Warning | ARX | Buffalo | 48 min |
| Jun 17, 8:52 PM CDT | Severe Thunderstorm Warning | ARX | Buffalo, Jackson, Trempealeau | 38 min |
| Jun 17, 8:56 PM CDT | Severe Thunderstorm Warning | ARX | Trempealeau | 64 min |
| Jun 17, 9:23 PM CDT | Severe Thunderstorm Warning | ARX | Jackson, Trempealeau | 37 min |
| Jun 17, 9:34 PM CDT | Special Weather Statement | ARX | Clark, Jackson | 41 min |
| Jun 17, 9:58 PM CDT | Severe Thunderstorm Warning | ARX | La Crosse, Trempealeau | 47 min |
| Jun 17, 10:22 PM CDT | Severe Thunderstorm Warning | ARX | Buffalo, Trempealeau | 53 min |
| Jun 17, 10:46 PM CDT | Severe Thunderstorm Warning | ARX | La Crosse, Monroe, Trempealeau | 44 min |
| Jun 17, 11:14 PM CDT | Severe Thunderstorm Warning | ARX | Vernon | 25 min |
| Jun 17, 11:15 PM CDT | Areal Flood Advisory | ARX | Buffalo, La Crosse, Monroe, Trempealeau | 97 min |
| Jun 17, 11:28 PM CDT | Special Weather Statement | ARX | Juneau, Monroe | 47 min |
| Jun 17, 11:56 PM CDT | Severe Thunderstorm Warning | ARX | Adams, Juneau | 34 min |
| Jun 18, 12:26 AM CDT | Special Weather Statement | ARX | Vernon | 34 min |
| Jun 17, 7:48 PM CDT | Severe Thunderstorm Warning | ARX | Wabasha | 57 min |
| Jun 17, 8:41 PM CDT | Severe Thunderstorm Warning | ARX | Wabasha | 49 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2021Severe Thunderstorm Warnings in Minnesota, 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.