Alert archive / Wisconsin / Tornado Warnings in 2020

Tornado Warning 2, NWS Milwaukee, WI

May 23, 2020Lafayette County, Wisconsin

NWS Milwaukee, WI issued this tornado warning at May 23, 2020, 4:23 PM CDT for Lafayette County, Wisconsin. It was in force for 35 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: May 23, 2020, 4:23 PM CDT (21:23 UTC)
Expired: May 23, 2020, 4:58 PM CDT
In force: 35 min
Issued by: NWS Milwaukee, WI
Area: Storm-based polygon
Tornado: Observed
Hail: 0.75 in

County Lafayette County, WI

The radar

The Quad Cities radar (KDVN), 118 km from the middle of the area, began a volume at 21:28 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
May 23, 12:33 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 9.4 hours before the alert went out and 115 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.

426 
WFUS53 KMKX 232123
TORMKX
WIC065-232215-
/O.NEW.KMKX.TO.W.0002.200523T2123Z-200523T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Milwaukee/Sullivan WI
423 PM CDT Sat May 23 2020

The National Weather Service in Milwaukee/Sullivan has issued a

* Tornado Warning for...
  Southeastern Lafayette County in south central Wisconsin...

* Until 515 PM CDT.

* At 422 PM CDT, a confirmed tornado was located over Warren, or 12
  miles southeast of Darlington, moving northeast at 20 mph.

  HAZARD...Damaging tornado.

  SOURCE...Public 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
  southeastern Lafayette County, including the following locations...
  Gratiot, Wiota, South Wayne, Somers and Woodford.

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 4251 9012 4270 9002 4267 8984 4254 8984
      4251 8986
TIME...MOT...LOC 2122Z 207DEG 17KT 4252 8998 

TORNADO...OBSERVED
HAIL...<.75IN

$$

ROGERS

3 follow-up statements

038 
WWUS53 KMKX 232133
SVSMKX

Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
433 PM CDT Sat May 23 2020

WIC065-232215-
/O.CON.KMKX.TO.W.0002.000000T0000Z-200523T2215Z/
Lafayette WI-
433 PM CDT Sat May 23 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR
SOUTHEASTERN LAFAYETTE COUNTY...
    
At 432 PM CDT, a confirmed tornado was located near Warren, or 11
miles southeast of Darlington, moving northeast at 20 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.

Locations impacted include...
Somers, Wiota, South Wayne, Gratiot and Woodford. 

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 4258 9008 4270 9002 4267 8984 4254 8984
      4251 8986 4254 9005
TIME...MOT...LOC 2132Z 207DEG 17KT 4257 8995 

TORNADO...OBSERVED
HAIL...<.75IN

$$

ROGERS

734 
WWUS53 KMKX 232145
SVSMKX

Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
445 PM CDT Sat May 23 2020

WIC065-232215-
/O.CON.KMKX.TO.W.0002.000000T0000Z-200523T2215Z/
Lafayette WI-
445 PM CDT Sat May 23 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR EAST
CENTRAL LAFAYETTE COUNTY...
    
At 445 PM CDT, a confirmed tornado was located near Argyle, or 11
miles east of Darlington, moving northeast at 20 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.

Locations impacted include...
Somers, Wiota, South Wayne and Woodford. 

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 4264 9005 4270 9002 4267 8984 4255 8984
      4257 8996
TIME...MOT...LOC 2145Z 207DEG 17KT 4262 8991 

TORNADO...OBSERVED
HAIL...<.75IN

$$

ROGERS

851 
WWUS53 KMKX 232158
SVSMKX

Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
458 PM CDT Sat May 23 2020

WIC065-232208-
/O.CAN.KMKX.TO.W.0002.000000T0000Z-200523T2215Z/
Lafayette WI-
458 PM CDT Sat May 23 2020

...THE TORNADO WARNING FOR EAST CENTRAL LAFAYETTE COUNTY IS
CANCELLED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.

A Tornado Watch remains in effect until 800 PM CDT for south central
Wisconsin.

LAT...LON 4264 9005 4270 9002 4267 8984 4255 8984
      4257 8996
TIME...MOT...LOC 2157Z 207DEG 17KT 4266 8988 

$$

DDV

The office that day

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

Issued	Product	Office	Counties	Lasted
May 22, 11:36 PM CDT	Dense Fog Advisory	MKX	Fond du Lac, Kenosha, Milwaukee, Ozaukee, Racine, Sheboygan and 3 more	9 hr
May 23, 3:23 PM CDT	Severe Thunderstorm Warning	MKX	Rock	52 min
May 23, 4:04 PM CDT	Tornado Warning	MKX	Rock	25 min
May 23, 4:28 PM CDT	Severe Thunderstorm Warning	MKX	Rock	47 min
May 23, 4:50 PM CDT	Tornado Warning Tornado observed	MKX	Rock	40 min
May 23, 5:12 PM CDT	Areal Flood Advisory	MKX	Rock	28 min
May 23, 5:15 PM CDT	Tornado Warning Tornado observed	MKX	Rock	31 min
May 23, 5:39 PM CDT	Flash Flood Warning	MKX	Rock	3 hr

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.