Alert archive / Wisconsin / Tornado Warnings in 2011

Tornado Warning 5, NWS Milwaukee, WI

May 22, 2011Sauk County, Wisconsin

NWS Milwaukee, WI issued this tornado warning at May 22, 2011, 6:09 PM CDT for Sauk County, Wisconsin. It was in force for 51 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 22, 2011, 6:09 PM CDT (23:09 UTC)
Expired
May 22, 2011, 7:00 PM CDT
In force
51 min
Issued by
NWS Milwaukee, WI
Area
Storm-based polygon

County Sauk County, WI

The radar

The La Crosse radar (KARX), 111 km from the middle of the area, began a volume at 23:10 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.

IssuedProductOfficeLasted
May 22, 2:04 PM CDTTornado WatchSPC9 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 11.2 hours before the alert went out and 184 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, Green Bay/Straub, WI at 12:00Z on 2011-05-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 351 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, Green Bay/Straub, WI at 12:00Z on 2011-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 square meters per square second.193958Sfc1 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
351 J/kg
Mixed-layer CIN
-121 J/kg
Mixed-layer LCL
1006 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
-1 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

578 
WFUS53 KMKX 222309
TORMKX
WIC111-230000-
/O.NEW.KMKX.TO.W.0005.110522T2309Z-110523T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
609 PM CDT SUN MAY 22 2011

THE NATIONAL WEATHER SERVICE IN SULLIVAN HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL SAUK COUNTY IN SOUTH CENTRAL WISCONSIN...

* UNTIL 700 PM CDT

* AT 605 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
  STORM WAS LOCATED 6 MILES EAST OF RICHLAND CENTER...AND MOVING EAST
  AT 50 MPH.

* THIS TORNADIC STORM WILL BE NEAR...
  WEST BARABOO AND WISCONSIN DELLS AIRPORT AROUND 635 PM CDT.
  DEVILS LAKE STATE PARK AND BARABOO AROUND 640 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE HILL
POINT...LOGANVILLE...LELAND...ROCK SPRINGS...NORTH FREEDOM...DEVILS
LAKE ST PARK AND MERRIMAC.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. THE SAFEST PLACE TO BE DURING A TORNADO IS IN A
BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE.
AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO
THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING
DEBRIS.

&&

LAT...LON 4346 9019 4357 8966 4356 8960 4338 8960
      4328 9020
TIME...MOT...LOC 2309Z 257DEG 44KT 4336 9020

$$

GEHRING
3 follow-up statements
019 
WWUS53 KMKX 222333
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
633 PM CDT SUN MAY 22 2011

WIC111-230000-
/O.CON.KMKX.TO.W.0005.000000T0000Z-110523T0000Z/
SAUK WI-
633 PM CDT SUN MAY 22 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL SAUK COUNTY UNTIL
700 PM CDT...

AT 629 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS 
STORM WAS LOCATED 7 MILES SOUTH OF REEDSBURG...MOVING EAST AT 50 MPH.

THIS DANGEROUS STORM WILL BE NEAR...
  WEST BARABOO...BARABOO...WISCONSIN DELLS AIRPORT AND DEVILS LAKE
  STATE PARK AROUND 640 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS DANGEROUS STORM INCLUDE DEVILS LAKE
ST PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4346 9019 4357 8966 4356 8960 4338 8960
      4328 9020
TIME...MOT...LOC 2333Z 253DEG 44KT 4345 8989

$$

DDV
435 
WWUS53 KMKX 222345
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
645 PM CDT SUN MAY 22 2011

WIC111-230000-
/O.CON.KMKX.TO.W.0005.000000T0000Z-110523T0000Z/
SAUK WI-
645 PM CDT SUN MAY 22 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR EAST CENTRAL SAUK COUNTY
UNTIL 700 PM CDT...

AT 643 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO.  THIS DANGEROUS
STORM WAS LOCATED NEAR WEST BARABOO...OR NEAR BARABOO...MOVING EAST
AT 40 MPH.

THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF EAST CENTRAL
SAUK COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4350 8989 4357 8966 4356 8965 4357 8963
      4356 8960 4338 8960 4336 8992
TIME...MOT...LOC 2346Z 263DEG 34KT 4343 8978

$$

DDV
635 
WWUS53 KMKX 222357
SVSMKX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
657 PM CDT SUN MAY 22 2011

WIC111-230008-
/O.EXP.KMKX.TO.W.0005.000000T0000Z-110523T0000Z/
SAUK WI-
657 PM CDT SUN MAY 22 2011

...THE TORNADO WARNING FOR EAST CENTRAL SAUK COUNTY WILL EXPIRE AT
700 PM CDT...

THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS
EXPIRED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT
FOR THE AREA.

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO 
WATCH REMAINS IN EFFECT UNTIL 10 PM CDT.

LAT...LON 4350 8989 4357 8966 4356 8965 4357 8963
      4356 8960 4338 8960 4336 8992
TIME...MOT...LOC 2358Z 263DEG 34KT 4344 8962

$$

DDV

The office that day

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

IssuedProductOfficeCountiesLasted
May 22, 12:00 AM CDTDense Fog AdvisoryMKXKenosha, Milwaukee, Ozaukee, Racine, Sheboygan7 hr
May 22, 2:16 PM CDTSevere Thunderstorm WarningMKXSauk14 min
May 22, 2:49 PM CDTSevere Thunderstorm WarningMKXMarquette41 min
May 22, 2:57 PM CDTTornado WarningMKXMarquette29 min
May 22, 3:16 PM CDTSevere Thunderstorm WarningMKXGreen Lake, Marquette14 min
May 22, 4:04 PM CDTSevere Thunderstorm WarningMKXGreen Lake26 min
May 22, 4:41 PM CDTSevere Thunderstorm WarningMKXColumbia, Dane, Dodge34 min
May 22, 5:21 PM CDTSevere Thunderstorm WarningMKXDane, Dodge, Jefferson39 min
May 22, 5:41 PM CDTSevere Thunderstorm WarningMKXJefferson, Rock49 min
May 22, 5:48 PM CDTSpecial Marine WarningMKX42 min
May 22, 5:54 PM CDTSevere Thunderstorm WarningMKXSauk51 min
May 22, 5:59 PM CDTSevere Thunderstorm WarningMKXDodge, Washington46 min
May 22, 6:00 PM CDTSevere Thunderstorm WarningMKXJefferson, Rock, Walworth, Waukesha45 min
May 22, 6:25 PM CDTSevere Thunderstorm WarningMKXOzaukee, Sheboygan, Washington35 min
May 22, 6:28 PM CDTSpecial Marine WarningMKX92 min
May 22, 6:31 PM CDTSevere Thunderstorm WarningMKXJefferson, Waukesha24 min
May 22, 6:39 PM CDTSevere Thunderstorm WarningMKXColumbia, Sauk36 min

Nearby

Tornado Warnings in Wisconsin, 2011Every tornado warning in 2011Tornadoes in 2011

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.