Alert archive / Wisconsin / Tornado Warnings in 2020

Tornado Warning 3, NWS La Crosse, WI

May 23, 2020Grant County, Wisconsin

NWS La Crosse, WI issued this tornado warning at May 23, 2020, 3:16 PM CDT for Grant County, Wisconsin. It was in force for 44 min. 1 report 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 23, 2020, 3:16 PM CDT (20:16 UTC)
Expired: May 23, 2020, 4:00 PM CDT
In force: 44 min
Issued by: NWS La Crosse, WI
Area: Storm-based polygon
Tornado: Observed
Hail: 0.0 in

County Grant County, WI

The radar

The La Crosse radar (KARX), 112 km from the middle of the area, began a volume at 20:15 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 23, 3:35 PM CDT	TORNADO	4 Nw Lancaster, WI	SEEN BY 4 SPOTTERS.

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
May 23, 12:33 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 8.3 hours before the alert went out and 141 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: 145 J/kg
Mixed-layer CIN: -133 J/kg
Mixed-layer LCL: 859 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 148 m²/s²
0-3 km storm-relative helicity: 198 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

055 
WFUS53 KARX 232016
TORARX
WIC043-232100-
/O.NEW.KARX.TO.W.0003.200523T2016Z-200523T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service La Crosse WI
316 PM CDT Sat May 23 2020

The National Weather Service in La Crosse has issued a

* Tornado Warning for...
  Central Grant County in southwestern Wisconsin...

* Until 400 PM CDT.

* At 315 PM CDT, a confirmed tornado was located 1 mile west of 
  Lancaster, moving northwest at 5 mph.

  HAZARD...Damaging tornado.

  SOURCE...Weather spotters confirmed tornado.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This tornadic thunderstorm will remain over mainly rural areas of
  central Grant County, including the following locations... Klondyke
  Secluded Acres and Mount Ida.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.

&&

LAT...LON 4283 9070 4280 9078 4290 9091 4298 9075
TIME...MOT...LOC 2015Z 154DEG 6KT 4285 9075 

TORNADO...OBSERVED
HAIL...0.00IN

$$

JSB

5 follow-up statements

928 
WWUS53 KARX 232023
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
323 PM CDT Sat May 23 2020

WIC043-232100-
/O.CON.KARX.TO.W.0003.000000T0000Z-200523T2100Z/
Grant WI-
323 PM CDT Sat May 23 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR CENTRAL
GRANT COUNTY...
    
At 321 PM CDT, a radar indicated tornado was located 1 mile west of 
Lancaster, moving north at 5 mph.

HAZARD...Damaging tornado.

SOURCE...Weather spotters confirmed that this storm produced a 
         tornado 2 miles south of Lancaster at 315 PM.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Lancaster, Mount Ida and Klondyke Secluded Acres. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.

&&

LAT...LON 4283 9070 4280 9078 4290 9091 4298 9075
TIME...MOT...LOC 2021Z 172DEG 5KT 4286 9074 

TORNADO...OBSERVED
HAIL...0.00IN

$$

JSB

648 
WWUS53 KARX 232028
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
328 PM CDT Sat May 23 2020

WIC043-232100-
/O.CON.KARX.TO.W.0003.000000T0000Z-200523T2100Z/
Grant WI-
328 PM CDT Sat May 23 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR CENTRAL
GRANT COUNTY...
    
At 326 PM CDT, a severe thunderstorm capable of producing a tornado
was located 1 mile northwest of Lancaster, moving north at 5 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation. Lancaster fire department 
         confirmed that this storm produced a tornado 2 miles south 
         of Lancaster at 315 PM.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Lancaster, Mount Ida and Klondyke Secluded Acres. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4283 9070 4282 9075 4290 9091 4298 9075
TIME...MOT...LOC 2026Z 172DEG 5KT 4286 9074 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

JSB

704 
WWUS53 KARX 232033
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
333 PM CDT Sat May 23 2020

WIC043-232100-
/O.CON.KARX.TO.W.0003.000000T0000Z-200523T2100Z/
Grant WI-
333 PM CDT Sat May 23 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR CENTRAL
GRANT COUNTY...
    
At 331 PM CDT, a severe thunderstorm capable of producing a tornado 
was located 2 northwest of Lancaster, moving north at 5 mph.  At 
315 PM, the Lancaster Fire Department confirmed that this storm 
produced a tornado 2 miles south of Lancaster.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4285 9071 4284 9075 4292 9087 4298 9075
TIME...MOT...LOC 2031Z 172DEG 5KT 4287 9074 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

JSB

897 
WWUS53 KARX 232039
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
339 PM CDT Sat May 23 2020

WIC043-232100-
/O.CON.KARX.TO.W.0003.000000T0000Z-200523T2100Z/
Grant WI-
339 PM CDT Sat May 23 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR CENTRAL
GRANT COUNTY...
    
At 335 PM CDT, Lancaster Fire Department reported a tornado 
4 miles northwest of Lancaster, moving northwest at 10 mph.

HAZARD...Tornado.

SOURCE...Weather spotters confirmed tornado.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.

&&

LAT...LON 4292 9087 4298 9075 4285 9071 4284 9075
TIME...MOT...LOC 2036Z 140DEG 7KT 4289 9076 

TORNADO...OBSERVED
HAIL...0.00IN

$$

JSB

149 
WWUS53 KARX 232045
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
345 PM CDT Sat May 23 2020

WIC043-232100-
/O.CON.KARX.TO.W.0003.000000T0000Z-200523T2100Z/
Grant WI-
345 PM CDT Sat May 23 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM CDT FOR CENTRAL
GRANT COUNTY...
    
At 344 PM CDT, a confirmed tornado was located 5 miles northwest of 
Lancaster, moving northwest at 10 mph.

HAZARD...Tornado.

SOURCE...Lancaster Fire Department.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This tornadic thunderstorm will remain over mainly rural areas of
central Grant County, including the following locations... Klondyke
Secluded Acres and Mount Ida.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.

&&

LAT...LON 4292 9087 4298 9075 4285 9071 4284 9075
TIME...MOT...LOC 2044Z 140DEG 7KT 4290 9078 

TORNADO...OBSERVED
HAIL...0.00IN

$$

JSB

The office that day

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

Issued	Product	Office	Counties	Lasted
May 23, 3:56 PM CDT	Tornado Warning	ARX	Grant	35 min

Nearby

Tornado Warnings in Wisconsin, 2020 Every tornado warning in 2020 Tornadoes in 2020

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.