Alert archive / Wisconsin / Special Weather Statements in 2016

Special Weather Statement, NWS Milwaukee, WI

July 6, 2016Walworth County, Wisconsin

NWS Milwaukee, WI issued this special weather statement at Jul 6, 2016, 1:07 AM CDT for Walworth County, Wisconsin. It was in force for 53 min. 2 reports 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
Jul 6, 2016, 1:07 AM CDT (06:07 UTC)
Expired
Jul 6, 2016, 2:00 AM CDT
In force
53 min
Issued by
NWS Milwaukee, WI

County Walworth County, WI

The radar

The Milwaukee radar (KMKX), 23 km from the middle of the area, began a volume at 06:04 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

TimeReportWhereRemark
Jul 6, 1:41 AM CDTTSTM WND GST 503 Se Bohners Lake, WIRELAYED VIA FACEBOOK.
Jul 6, 1:43 AM CDTTSTM WND DMGTwin Lakes, WILOTS OF LARGE BRANCHES DOWN AND WIND DAMAGE TO A TENT GAZEBO.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 6.1 hours before the alert went out and 195 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 00:00Z on 2016-07-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 505 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 00:00Z on 2016-07-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -9 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
505 J/kg
Mixed-layer CIN
-125 J/kg
Mixed-layer LCL
1508 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
-9 m²/s²
0-3 km storm-relative helicity
8 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

As transmitted.

986 
WWUS83 KMKX 060607
SPSMKX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
107 AM CDT WED JUL 6 2016

WIZ065-070>072-060700-
WAUKESHA-RACINE-KENOSHA-WALWORTH-
107 AM CDT WED JUL 6 2016

...A STRONG THUNDERSTORM WILL AFFECT WALWORTH...WESTERN RACINE...
WESTERN KENOSHA AND SOUTHWESTERN WAUKESHA COUNTIES...

AT 106 AM CDT...A STRONG THUNDERSTORM WAS LOCATED 7 MILES SOUTH OF
WHITEWATER...MOVING SOUTHEAST AT 45 MPH.

WIND GUSTS OF 50 TO 55 MPH ARE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
MUSKEGO...WHITEWATER...ELKHORN...DELAVAN...LAKE GENEVA...MUKWONAGO...
TWIN LAKES...EAST TROY...PADDOCK LAKE...WILLIAMS BAY...WIND LAKE...
CAMP LAKE...ROCHESTER...GENOA CITY...WALWORTH...SILVER LAKE...
FONTANA-ON-GENEVA LAKE...SHARON...DARIEN AND BROWNS LAKE.

LAT...LON 4283 8878 4284 8877 4284 8855 4290 8854
      4284 8807 4250 8808 4249 8878
TIME...MOT...LOC 0606Z 293DEG 41KT 4273 8877 

$$

SPM

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 5, 10:49 PM CDTSevere Thunderstorm WarningMKXColumbia, Iowa, Sauk71 min
Jul 5, 11:35 PM CDTSevere Thunderstorm WarningMKXIowa, Lafayette25 min
Jul 5, 11:46 PM CDTSevere Thunderstorm WarningMKXColumbia, Green Lake, Marquette, Sauk59 min
Jul 5, 11:51 PM CDTSevere Thunderstorm WarningMKXDane54 min
Jul 5, 11:54 PM CDTSevere Thunderstorm WarningMKXDane, Green, Iowa, Jefferson, Lafayette, Rock66 min
Jul 6, 12:13 AM CDTSevere Thunderstorm WarningMKXDodge, Fond du Lac62 min
Jul 6, 12:36 AM CDTSevere Thunderstorm WarningMKXDane, Jefferson39 min
Jul 6, 12:46 AM CDTSevere Thunderstorm WarningMKXRock44 min
Jul 6, 12:58 AM CDTSpecial Weather StatementMKXWaukesha62 min
Jul 6, 1:13 AM CDTSevere Thunderstorm WarningMKXRacine, Rock, Walworth, Waukesha47 min
Jul 6, 1:18 AM CDTSpecial Weather StatementMKXMilwaukee27 min
Jul 6, 1:25 AM CDTSpecial Marine WarningMKX2 hr
Jul 6, 1:30 AM CDTSpecial Weather StatementMKXKenosha, Racine60 min
Jul 6, 1:38 AM CDTSevere Thunderstorm WarningMKXKenosha, Racine52 min

Nearby

Special Weather Statements in Wisconsin, 2016Every special weather statement in 2016

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.