Alert archive / Wisconsin / Tornado Warnings in 2019

Tornado Warning 3, NWS Milwaukee, WI

August 7, 2019Fond du Lac County, Sheboygan County, Wisconsin

NWS Milwaukee, WI issued this tornado warning at Aug 7, 2019, 8:33 PM CDT for Fond du Lac County, Sheboygan County, Wisconsin. It was in force for 27 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
Aug 7, 2019, 8:33 PM CDT (01:33 UTC)
Expired
Aug 7, 2019, 9:00 PM CDT
In force
27 min
Issued by
NWS Milwaukee, WI
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties Fond du Lac County, WI, Sheboygan County, WI

The radar

The Green Bay radar (KGRB), 78 km from the middle of the area, began a volume at 01:32 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 00:00Z, 1.6 hours before the alert went out and 309 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-pSkew-T log-p diagram, Davenport, at 00:00Z on 2019-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 626 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 00:00Z on 2019-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 33 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
626 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
1498 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
33 m²/s²
0-3 km storm-relative helicity
66 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.2

Open this sounding in Storm Lab

The text

As transmitted.

013 
WFUS53 KMKX 080133
TORMKX
WIC039-117-080200-
/O.NEW.KMKX.TO.W.0003.190808T0133Z-190808T0200Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Milwaukee/Sullivan WI
833 PM CDT Wed Aug 7 2019

The National Weather Service in Milwaukee/Sullivan has issued a

* Tornado Warning for...
  East central Fond du Lac County in east central Wisconsin...
  Northwestern Sheboygan County in east central Wisconsin...

* Until 900 PM CDT.
    
* At 832 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 7 miles southwest of St Anna, or 11 miles west of
  Plymouth, moving east at 35 mph.

  HAZARD...Tornado and quarter size hail.

  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.

* This dangerous storm will be near...
  Plymouth and Elkhart Lake around 850 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Calvary, Glenbeulah, Mount Calvary, St. Cloud and Greenbush.

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 4375 8831 4387 8830 4388 8788 4372 8796
TIME...MOT...LOC 0132Z 268DEG 28KT 4381 8819 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

MBK
2 follow-up statements
098 
WWUS53 KMKX 080143
SVSMKX

Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
843 PM CDT Wed Aug 7 2019

WIC039-080152-
/O.CAN.KMKX.TO.W.0003.000000T0000Z-190808T0200Z/
Fond du Lac WI-
843 PM CDT Wed Aug 7 2019

...THE TORNADO WARNING FOR EAST CENTRAL FOND DU LAC COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

LAT...LON 4374 8816 4387 8816 4388 8788 4372 8796
TIME...MOT...LOC 0142Z 270DEG 28KT 4381 8808 

$$

WIC117-080200-
/O.CON.KMKX.TO.W.0003.000000T0000Z-190808T0200Z/
Sheboygan WI-
843 PM CDT Wed Aug 7 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR
NORTHWESTERN SHEBOYGAN COUNTY...
    
At 842 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Elkhart Lake, or near Plymouth, moving east at 30
mph.

HAZARD...Tornado and quarter size hail.

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.

This dangerous storm will be near...
  Plymouth around 850 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Glenbeulah and Greenbush.

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 4374 8816 4387 8816 4388 8788 4372 8796
TIME...MOT...LOC 0142Z 270DEG 28KT 4381 8808 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

MBK
909 
WWUS53 KMKX 080153
SVSMKX

Severe Weather Statement
National Weather Service Milwaukee/Sullivan WI
853 PM CDT Wed Aug 7 2019

WIC117-080203-
/O.EXP.KMKX.TO.W.0003.000000T0000Z-190808T0200Z/
Sheboygan WI-
853 PM CDT Wed Aug 7 2019

...THE TORNADO WARNING FOR NORTHWESTERN SHEBOYGAN COUNTY WILL EXPIRE
AT 900 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.  However small
hail, gusty winds and heavy rain are still possible with this
thunderstorm.

LAT...LON 4374 8816 4387 8816 4388 8788 4372 8796
TIME...MOT...LOC 0153Z 270DEG 28KT 4381 8797 

$$

MBK

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 7, 7:20 PM CDTSpecial Weather StatementMKXFond du Lac55 min
Aug 7, 7:33 PM CDTSevere Thunderstorm WarningMKXFond du Lac, Green Lake, Marquette42 min
Aug 7, 7:53 PM CDTSpecial Weather StatementMKXMarquette37 min
Aug 7, 8:08 PM CDTSevere Thunderstorm WarningMKXFond du Lac, Green Lake, Sheboygan52 min
Aug 7, 8:18 PM CDTSevere Thunderstorm WarningMKXGreen Lake, Marquette42 min
Aug 7, 8:50 PM CDTSevere Thunderstorm WarningMKXDodge, Fond du Lac, Green Lake, Ozaukee, Sheboygan, Washington25 min
Aug 7, 8:54 PM CDTSpecial Marine WarningMKX81 min
Aug 7, 8:55 PM CDTSpecial Weather StatementMKXColumbia, Green Lake, Sauk35 min
Aug 7, 9:18 PM CDTSevere Thunderstorm WarningMKXColumbia, Dodge, Fond du Lac, Ozaukee, Sheboygan, Washington42 min
Aug 7, 9:53 PM CDTSpecial Weather StatementMKXDane, Jefferson52 min
Aug 7, 10:01 PM CDTSpecial Weather StatementMKXWashington, Waukesha44 min
Aug 7, 10:23 PM CDTSpecial Marine WarningMKX97 min
Aug 7, 10:34 PM CDTSevere Thunderstorm WarningMKXJefferson41 min
Aug 7, 10:47 PM CDTSpecial Weather StatementMKXJefferson, Kenosha, Milwaukee, Racine, Rock, Walworth and 1 more73 min

Nearby

Tornado Warnings in Wisconsin, 2019Every tornado warning in 2019Tornadoes in 2019

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.