Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 53, NWS La Crosse, WI

July 27, 2021Crawford County, Vernon County, Wisconsin

NWS La Crosse, WI issued this severe thunderstorm warning at Jul 27, 2021, 9:16 AM CDT for Crawford County, Vernon County, Wisconsin. It was in force for 28 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: Jul 27, 2021, 9:16 AM CDT (14:16 UTC)
Expired: Jul 27, 2021, 9:44 AM CDT
In force: 28 min
Issued by: NWS La Crosse, WI
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Crawford County, WI, Vernon County, WI

The radar

The La Crosse radar (KARX), 61 km from the middle of the area, began a volume at 14:17 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

Davenport, (KDVN), launched 12:00Z, 2.3 hours before the alert went out and 191 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1895 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 75 m²/s²
0-3 km storm-relative helicity: 110 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

698 
WUUS53 KARX 271416
SVRARX
WIC023-123-271500-
/O.NEW.KARX.SV.W.0053.210727T1416Z-210727T1500Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service La Crosse WI
916 AM CDT Tue Jul 27 2021

The National Weather Service in La Crosse has issued a

* Severe Thunderstorm Warning for...
  Southwestern Vernon County in southwestern Wisconsin...
  Crawford County in southwestern Wisconsin...

* Until 1000 AM CDT.

* At 915 AM CDT, a severe thunderstorm was located 9 miles east of
  New Albin, or 11 miles west of Viroqua, moving south at 40 mph.

  HAZARD...Quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* This severe thunderstorm will remain over mainly rural areas of
  southwestern Vernon and Crawford Counties, including the following
  locations... Eastman, Red Mound, Rush Creek, Harris Ridge,
  Fairview, Bud and Maple Ridge.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4320 9112 4326 9106 4331 9111 4334 9117
      4348 9122 4352 9122 4355 9125 4356 9123
      4359 9123 4364 9103 4314 9073 4312 9076
      4311 9080 4308 9085 4306 9094 4303 9097
      4300 9104
TIME...MOT...LOC 1415Z 340DEG 36KT 4354 9111 

HAIL...1.00IN
WIND...<50MPH
 
$$

JSB

4 follow-up statements

966 
WWUS53 KARX 271427
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
927 AM CDT Tue Jul 27 2021

WIC023-123-271500-
/O.CON.KARX.SV.W.0053.000000T0000Z-210727T1500Z/
Vernon WI-Crawford WI-
927 AM CDT Tue Jul 27 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 AM CDT
FOR SOUTHWESTERN VERNON AND CRAWFORD COUNTIES...

At 926 AM CDT, a severe thunderstorm was located 7 miles northeast of
Lansing, moving south at 40 mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

Locations impacted include...
Seneca, Wauzeka, Gays Mills, Eastman, De Soto, Genoa, Mount Sterling,
Ferryville, Lynxville, Steuben, Bell Center, Red Mound, Rush Creek,
Harris Ridge, Fairview, Bud, Maple Ridge, Petersburg, Retreat and
Fargo.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4320 9112 4326 9106 4331 9111 4334 9117
      4348 9122 4352 9122 4355 9125 4356 9123
      4359 9123 4364 9103 4314 9073 4312 9076
      4311 9080 4308 9085 4306 9094 4303 9097
      4300 9104
TIME...MOT...LOC 1426Z 342DEG 36KT 4342 9109 

HAIL...1.00IN
WIND...<50MPH
 
$$

JSB

196 
WWUS53 KARX 271431
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
931 AM CDT Tue Jul 27 2021

WIC023-123-271500-
/O.CON.KARX.SV.W.0053.000000T0000Z-210727T1500Z/
Vernon WI-Crawford WI-
931 AM CDT Tue Jul 27 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 AM CDT
FOR SOUTHWESTERN VERNON AND CRAWFORD COUNTIES...

At 931 AM CDT, a severe thunderstorm was located 7 miles east of
Lansing, moving south at 40 mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

Locations impacted include...
Seneca, Wauzeka, Gays Mills, Eastman, De Soto, Genoa, Mount Sterling,
Ferryville, Lynxville, Steuben, Bell Center, Red Mound, Rush Creek,
Harris Ridge, Fairview, Bud, Maple Ridge, Petersburg, Retreat and
Fargo.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4320 9112 4326 9106 4331 9111 4334 9117
      4348 9122 4352 9122 4355 9125 4356 9123
      4359 9123 4364 9103 4314 9073 4312 9076
      4311 9080 4308 9085 4306 9094 4303 9097
      4300 9104
TIME...MOT...LOC 1431Z 342DEG 36KT 4337 9107 

HAIL...1.00IN
WIND...<50MPH
 
$$

JSB

474 
WWUS53 KARX 271440
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
940 AM CDT Tue Jul 27 2021

WIC123-271449-
/O.CAN.KARX.SV.W.0053.000000T0000Z-210727T1500Z/
Vernon WI-
940 AM CDT Tue Jul 27 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN VERNON COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 4320 9112 4324 9106 4326 9106 4331 9111
      4334 9117 4342 9120 4342 9090 4314 9073
      4308 9085 4306 9094 4303 9097 4302 9100
      4300 9103 4301 9104
TIME...MOT...LOC 1439Z 347DEG 35KT 4330 9111 

$$

WIC023-271500-
/O.CON.KARX.SV.W.0053.000000T0000Z-210727T1500Z/
Crawford WI-
940 AM CDT Tue Jul 27 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 AM CDT
FOR CRAWFORD COUNTY...

At 939 AM CDT, a severe thunderstorm was located near Lansing, moving
south at 40 mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

This severe thunderstorm will remain over mainly rural areas of
Crawford County, including the following locations... Eastman, Rush
Creek, Harris Ridge, Fairview, Maple Ridge, Petersburg and
Ferryville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4320 9112 4324 9106 4326 9106 4331 9111
      4334 9117 4342 9120 4342 9090 4314 9073
      4308 9085 4306 9094 4303 9097 4302 9100
      4300 9103 4301 9104
TIME...MOT...LOC 1439Z 347DEG 35KT 4330 9111 

HAIL...1.00IN
WIND...<50MPH
 
$$

JSB

725 
WWUS53 KARX 271444
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
944 AM CDT Tue Jul 27 2021

WIC023-271454-
/O.CAN.KARX.SV.W.0053.000000T0000Z-210727T1500Z/
Crawford WI-
944 AM CDT Tue Jul 27 2021

...THE SEVERE THUNDERSTORM WARNING FOR CRAWFORD COUNTY IS
CANCELLED...
        
The storm which prompted the warning has weakened below severe 
limits. Therefore, the warning has been cancelled.  However gusty 
winds are still possible with this thunderstorm.

LAT...LON 4320 9112 4324 9106 4326 9106 4331 9111
      4334 9117 4342 9120 4342 9090 4314 9073
      4308 9085 4306 9094 4303 9097 4302 9100
      4300 9103 4301 9104
TIME...MOT...LOC 1439Z 340DEG 36KT 4326 9110 

$$

JSB

The office that day

Everything else NWS La Crosse, WI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 26, 10:24 PM CDT	Special Weather Statement	ARX	Taylor	66 min
Jul 27, 1:49 AM CDT	Special Weather Statement	ARX	Taylor	56 min
Jul 27, 2:45 AM CDT	Special Weather Statement	ARX	Taylor	60 min
Jul 27, 6:34 AM CDT	Special Weather Statement	ARX	Clark	56 min
Jul 27, 7:01 AM CDT	Special Weather Statement	ARX	Trempealeau	59 min
Jul 27, 7:08 AM CDT	Special Weather Statement	ARX	Clark	67 min
Jul 27, 7:33 AM CDT	Severe Thunderstorm Warning	ARX	Jackson, Monroe	57 min
Jul 27, 8:17 AM CDT	Severe Thunderstorm Warning	ARX	La Crosse, Vernon	58 min
Jul 27, 8:36 AM CDT	Special Weather Statement	ARX	Juneau	54 min
Jul 27, 11:54 AM CDT	Severe Thunderstorm Warning	ARX	Jackson, La Crosse, Trempealeau	51 min
Jul 27, 12:00 PM CDT	Severe Thunderstorm Warning	ARX	Jackson, La Crosse, Trempealeau	45 min
Jul 27, 3:10 PM CDT	Heat Advisory	ARX	Buffalo, Crawford, Grant, Jackson, La Crosse, Monroe and 3 more	30 hr

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2021 Every 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.