Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 9, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at May 2, 2021, 5:59 PM CDT for Jackson County, La Crosse County, Trempealeau County, Wisconsin. It was in force for 29 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
- May 2, 2021, 5:59 PM CDT (22:59 UTC)
- Expired
- May 2, 2021, 6:28 PM CDT
- In force
- 29 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Jackson County, WI, La Crosse County, WI, Trempealeau County, WI
The radar
The La Crosse radar (KARX), 31 km from the middle of the area, began a volume at 23:00 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 |
|---|---|---|---|
| May 2, 6:15 PM CDT | HAIL 1 | 1 Ene North Bend, WI | PUBLIC REPORTED QUARTER SIZE HAIL VIA BROADCAST MEDIA SOCIAL MEDIA PICTURE. |
| May 2, 6:23 PM CDT | HAIL 0.7 | 3 Sw Melrose, WI | PUBLIC REPORTED PEA TO DIME SIZE HAIL VIA SOCIAL MEDIA. |
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 12:00Z, 11.0 hours before the alert went out and 221 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
- 3075 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- -80 m²/s²
- 0-3 km storm-relative helicity
- -13 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
851
WUUS53 KARX 022259
SVRARX
WIC053-063-121-022345-
/O.NEW.KARX.SV.W.0009.210502T2259Z-210502T2345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service La Crosse WI
559 PM CDT Sun May 2 2021
The National Weather Service in La Crosse has issued a
* Severe Thunderstorm Warning for...
Northeastern La Crosse County in west central Wisconsin...
Southwestern Jackson County in west central Wisconsin...
Southeastern Trempealeau County in west central Wisconsin...
* Until 645 PM CDT.
* At 559 PM CDT, a severe thunderstorm was located over North Bend,
or 17 miles north of La Crosse, moving east at 15 mph.
HAZARD...Quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
* This severe thunderstorm will be near...
North Bend around 610 PM CDT.
Other locations impacted by this severe thunderstorm include Peacock
Hill, Melrose, Severson Coulee, Mindoro, Stevenstown, Burr Oak and
Camp Ehawee.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4398 9097 4398 9122 4415 9122 4415 9097
4413 9097 4413 9098 4412 9097
TIME...MOT...LOC 2259Z 262DEG 13KT 4407 9117
HAIL...1.00IN
WIND...<50MPH
$$
Rieck2 follow-up statements
168
WWUS53 KARX 022310
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
610 PM CDT Sun May 2 2021
WIC053-063-121-022345-
/O.CON.KARX.SV.W.0009.000000T0000Z-210502T2345Z/
La Crosse WI-Jackson WI-Trempealeau WI-
610 PM CDT Sun May 2 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR NORTHEASTERN LA CROSSE...SOUTHWESTERN JACKSON AND SOUTHEASTERN
TREMPEALEAU COUNTIES...
At 610 PM CDT, a severe thunderstorm was located over North Bend, or
17 miles northwest of Sparta, moving east at 15 mph.
HAZARD...Quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
This severe thunderstorm will remain over mainly rural areas of
northeastern La Crosse, southwestern Jackson and southeastern
Trempealeau Counties, including the following locations... Peacock
Hill, Melrose, Severson Coulee, Mindoro, Stevenstown, Burr Oak and
Camp Ehawee.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4398 9097 4398 9122 4415 9122 4415 9097
4413 9097 4413 9098 4412 9097
TIME...MOT...LOC 2310Z 262DEG 13KT 4408 9111
HAIL...1.00IN
WIND...<50MPH
$$
Rieck635
WWUS53 KARX 022328
SVSARX
Severe Weather Statement
National Weather Service La Crosse WI
628 PM CDT Sun May 2 2021
WIC053-063-121-022338-
/O.CAN.KARX.SV.W.0009.000000T0000Z-210502T2345Z/
La Crosse WI-Jackson WI-Trempealeau WI-
628 PM CDT Sun May 2 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN LA CROSSE...
SOUTHWESTERN JACKSON AND SOUTHEASTERN TREMPEALEAU COUNTIES IS
CANCELLED...
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 has been cancelled.
LAT...LON 4398 9097 4398 9122 4415 9122 4415 9097
4413 9097 4413 9098 4412 9097
TIME...MOT...LOC 2323Z 262DEG 13KT 4409 9102
$$
RieckThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 2, 4:56 PM CDT | Severe Thunderstorm Warning | ARX | Trempealeau | 34 min |
| May 2, 5:28 PM CDT | Severe Thunderstorm Warning | ARX | Trempealeau | 47 min |
| May 2, 5:44 PM CDT | Severe Thunderstorm Warning | ARX | Buffalo, Trempealeau | 40 min |
| May 2, 6:52 PM CDT | Severe Thunderstorm Warning | ARX | Monroe, Vernon | 38 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.