Alert archive / Wisconsin / Special Weather Statements in 2017

Special Weather Statement, NWS Milwaukee, WI

July 2, 2017Walworth County, Wisconsin

NWS Milwaukee, WI issued this special weather statement at Jul 2, 2017, 3:29 PM CDT for Walworth County, Wisconsin. It was in force for 31 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
Jul 2, 2017, 3:29 PM CDT (20:29 UTC)
Expired
Jul 2, 2017, 4:00 PM CDT
In force
31 min
Issued by
NWS Milwaukee, WI

County Walworth County, WI

The radar

The Milwaukee radar (KMKX), 20 km from the middle of the area, began a volume at 20:29 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 12:00Z, 8.5 hours before the alert went out and 200 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 12:00Z on 2017-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 12:00Z on 2017-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 118 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2143 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
118 m²/s²
0-3 km storm-relative helicity
82 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Milwaukee, WI wrote its last area forecast discussion before this special weather statement went out at Jul 2, 12:46 PM CDT, 2 hours 43 minutes earlier.

Area forecast discussion, Jul 2, 12:46 PM CDT, 2 hours 43 minutes before
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  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
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  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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Hazardous weather outlook, Jul 2, 3:23 AM CDT, 12 hours 6 minutes before
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
323 AM CDT Sun Jul 2 2017

WIZ046-047-051-052-056>060-062>072-030830-
Marquette-Green Lake-Fond Du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
323 AM CDT Sun Jul 2 2017

This Hazardous Weather Outlook is for portions of east central
Wisconsin, south central Wisconsin, and southeast Wisconsin.

.DAY ONE...Today and Tonight

There is a small chance of severe thunderstorms this afternoon
with the potential for large hail and damaging winds.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

There are mainly small chances for thunderstorms at times this
week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will mostly likely not be needed.

LMZ643>646-030830-
Sheboygan to Port Washington WI-
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
323 AM CDT Sun Jul 2 2017

This Hazardous Weather Outlook is for portions of Lake Michigan.

.DAY ONE...Today and Tonight

There is a small chance of severe thunderstorms this afternoon
with the potential for large hail and damaging winds.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

There are mainly small chances for thunderstorms at times this
week.

Collar
www.weather.gov/mkx

In the hours before

Special weather statement, Jul 2, 1:51 PM CDT, 1 hour 38 minutes before
Special Weather Statement
National Weather Service Milwaukee/Sullivan WI
151 PM CDT SUN JUL 2 2017

WIZ065-066-071-072-021915-
Waukesha-Milwaukee-Racine-Kenosha-
151 PM CDT SUN JUL 2 2017

...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN MILWAUKEE...CENTRAL
RACINE AND NORTH CENTRAL KENOSHA COUNTIES...

At 151 PM CDT, a strong thunderstorm was located near Wind Lake,
moving southeast at 30 mph.

Winds in excess of 30 mph are possible with this storm.

Locations impacted include...
Racine, Mount Pleasant, Muskego, Sturtevant, Union Grove, Paddock
Lake, Wind Lake, Eagle Lake, Elmwood Park, Franksville, Kansasville
and North Cape.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

LAT...LON 4278 8818 4289 8806 4269 8780 4257 8808
      4269 8818
TIME...MOT...LOC 1851Z 331DEG 27KT 4281 8803

SPM
Special weather statement, Jul 2, 2:08 PM CDT, 1 hour 21 minutes before
Special Weather Statement
National Weather Service Milwaukee/Sullivan WI
208 PM CDT SUN JUL 2 2017

WIZ072-021945-
Kenosha-
208 PM CDT SUN JUL 2 2017

...A STRONG THUNDERSTORM WILL AFFECT EASTERN KENOSHA COUNTY...

At 208 PM CDT, a strong thunderstorm was located near Kenosha, moving
southeast at 35 mph.

Winds in excess of 30 mph are possible with this storm.

Locations impacted include...
Kenosha and Pleasant Prairie.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

LAT...LON 4266 8811 4266 8781 4263 8782 4260 8782
      4259 8781 4252 8781 4249 8780 4249 8793
TIME...MOT...LOC 1908Z 320DEG 32KT 4262 8787

SPM
Special weather statement, Jul 2, 2:53 PM CDT, 36 minutes before
Special Weather Statement
National Weather Service Milwaukee/Sullivan WI
253 PM CDT SUN JUL 2 2017

WIZ063-022030-
Dane-
253 PM CDT SUN JUL 2 2017

...A CLUSTER OF STRONG THUNDERSTORMS PRODUCING HEAVY RAINFALL WILL
AFFECT SOUTHEASTERN DANE COUNTY...

At 249 PM CDT, a cluster of strong thunderstorms were located near
McFarland, moving east at 40 mph.

Torrential rainfall is occurring with these storms, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

Winds in excess of 30 mph and pea size hail are also possible with
these storms.

Locations impacted include...
Madison, Fitchburg, Stoughton, Oregon, McFarland, Monona, Edgerton,
Cottage Grove, Deerfield, Cambridge, Brooklyn, Lake Koshkonong,
Fulton, Albion, Utica, Rockdale, Cooksville and Henry Vilas Zoo.

LAT...LON 4306 8947 4309 8901 4285 8901 4285 8936
TIME...MOT...LOC 1952Z 265DEG 33KT 4298 8930

SPM
Special weather statement, Jul 2, 3:29 PM CDT, 0 minutes before
Special Weather Statement
National Weather Service Milwaukee/Sullivan WI
329 PM CDT SUN JUL 2 2017

WIZ064-065-069-070-022100-
Walworth-Rock-Waukesha-Jefferson-
329 PM CDT SUN JUL 2 2017

...STRONG THUNDERSTORMS PRODUCING HEAVY RAINFALL WILL AFFECT
NORTHERN WALWORTH...NORTHEASTERN ROCK...SOUTHWESTERN WAUKESHA AND
SOUTHERN JEFFERSON COUNTIES...

At 328 PM CDT, a strong thunderstorm was located over Whitewater,
moving east at 30 mph. Additional storms were located near Fort
Atkinson, and near East Troy.

Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.

Winds in excess of 30 mph and pea size hail are possible with these
storms.

Locations impacted include...
Whitewater, Fort Atkinson, Elkhorn, Mukwonago, Milton, East Troy,
North Prairie, Palmyra, Lake Koshkonong, Potter Lake, Burlington,
Rome, La Grange, Eagle, Hebron, Honey Creek, Busseyville, Abells
Corners, Tibbets and Millard.

LAT...LON 4279 8899 4299 8901 4295 8830 4267 8831
TIME...MOT...LOC 2028Z 264DEG 27KT 4281 8873

SPM

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 2, 1:51 PM CDTSpecial Weather StatementMKXKenosha24 min
Jul 2, 2:08 PM CDTSpecial Weather StatementMKXKenosha37 min
Jul 2, 2:53 PM CDTSpecial Weather StatementMKXDane37 min
Jul 2, 2:56 PM CDTSpecial Marine WarningMKX34 min
Jul 2, 3:31 PM CDTSpecial Weather StatementMKXDane29 min
Jul 2, 3:57 PM CDTSpecial Weather StatementMKXDane33 min
Jul 2, 4:03 PM CDTSevere Thunderstorm WarningMKXDane27 min
Jul 2, 4:12 PM CDTSpecial Weather StatementMKXKenosha48 min
Jul 2, 4:27 PM CDTSpecial Weather StatementMKXDane33 min
Jul 2, 5:54 PM CDTSpecial Weather StatementMKXDane36 min
Jul 2, 6:09 PM CDTSevere Thunderstorm WarningMKXDane36 min

Nearby

Special Weather Statements in Wisconsin, 2017Every special weather statement in 2017

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.