Alert archive / Wisconsin / Special Weather Statements in 2016

Special Weather Statement, NWS Milwaukee, WI

May 28, 20166 counties in Wisconsin

NWS Milwaukee, WI issued this special weather statement at May 28, 2016, 8:44 PM CDT for 6 counties in Wisconsin. It was in force for 46 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 28, 2016, 8:44 PM CDT (01:44 UTC)
Expired
May 28, 2016, 9:30 PM CDT
In force
46 min
Issued by
NWS Milwaukee, WI

Counties Kenosha County, WI, Milwaukee County, WI, Ozaukee County, WI, Racine County, WI, Sheboygan County, WI, Washington County, WI

The radar

The Milwaukee radar (KMKX), 60 km from the middle of the area, began a volume at 01:45 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, 1.7 hours before the alert went out and 280 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 2016-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 256 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2016-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 square meters per square second.19395878Sfc1 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
256 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
1474 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
70 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

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 May 28, 3:06 PM CDT, 5 hours 38 minutes earlier.

Area forecast discussion, May 28, 3:06 PM CDT, 5 hours 38 minutes before
Area Forecast Discussion
National Weather Service Milwaukee/Sullivan WI
306 PM CDT SAT MAY 28 2016

.TONIGHT AND SUNDAY...Forecast Confidence...Medium

Scattered thunderstorms southwest of the forecast area are beginning
to form into a line. A shortwave will bring this line of storms into
the forecast area from late afternoon into the evening. More daytime
heating will be available in the the western forecast area as the
storms move through, so better bet for a few severe storms there.
A severe thunderstorm watch is thus in effect for western portions
of the forecast area. SPC is highlighting damaging winds is the
primary severe threat, though some large hail and a tornado are not
out of the question.

Storms should exit the east by mid/late evening, with dry weather
then expected overnight.

The main trough axis is expected to move through on Sunday, bringing
a chance for a few showers and storms. Should see decreasing precip
chances and clouds from southwest to northeast later in the day, so
have mildest temps in the southwest. Temps will be above normal
again.

.SUNDAY NIGHT AND MONDAY...Forecast confidence is high.

It looks like we'll have a warm and dry Memorial Day. High
pressure will take control with the column showing a significant
lack of moisture. So, should see abundant sunshine with highs in
the lower to mid 80s. If we do see any showers, it would be later
in the afternoon and most likely along the WI/IL border southwest
of Madison, but that threat looks low enough that we can leave it
out.

.TUESDAY THROUGH THURSDAY...Forecast confidence is medium.

Ridging will slide east, allowing a very slow moving trough to
approach then move through the Upper Midwest during this period.
Look for showers and storms from time to time with the best chance
for rain Tuesday night and Wednesday. The surface trough/front
will likely exit far eastern Wisconsin by early Thursday morning.
Some lingering showers on Thursday and turning a bit cooler with
lower dewpoints.

.FRIDAY AND SATURDAY...Forecast confidence is medium.

Cooler high pressure settles across the area. This looks like a
dry period.

&&

.AVIATION/00Z TAFS/...

Mainly VFR conditions are expected into tonight (other than lower
conditions possible in storms). A line of showers and storms will
likely arrive in the western forecast area by late afternoon,
progressing eastward across southern Wisconsin during the evening
hours. Could see a strong/severe storm or two, particularly from
Madison westward.

A chance for showers and storms will linger on Sunday as the upper
trough moves through. Models are suggesting a return of some lower
ceilings for a while as the trough slides through.

&&

.MARINE...

Southerly winds will keep some patchy fog over the nearshore waters
at times through tonight. The fog could be briefly dense. Southwest
to west winds Sunday should bring an end to the fog.

A few gusts to 25 knots are not out of the question through late
this afternoon and again Sunday afternoon. Overall though,
conditions seem too borderline for a Small Craft Advisory.

&&

.MKX Watches/Warnings/Advisories...
WI...None.
LM...None.
&&

TONIGHT/Sunday AND AVIATION/MARINE...DDV
Sunday NIGHT THROUGH Saturday...Davis
Hazardous weather outlook, May 28, 3:18 PM CDT, 5 hours 26 minutes before
HAZARDOUS WEATHER OUTLOOK...CORRECTION
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
318 PM CDT SAT MAY 28 2016

WIZ046-047-051-052-056>060-062>072-292030-
MARQUETTE-GREEN LAKE-FOND DU LAC-SHEBOYGAN-SAUK-COLUMBIA-DODGE-
WASHINGTON-OZAUKEE-IOWA-DANE-JEFFERSON-WAUKESHA-MILWAUKEE-
LAFAYETTE-GREEN-ROCK-WALWORTH-RACINE-KENOSHA-
318 PM CDT SAT MAY 28 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL
WISCONSIN...SOUTH CENTRAL WISCONSIN AND SOUTHEAST WISCONSIN.

.DAY ONE...TONIGHT

A LINE OF POTENTIALLY SEVERE THUNDERSTORMS WILL ROLL NORTHEAST
ACROSS SOUTH CENTRAL WISCONSIN EARLY THIS EVENING.  A SEVERE
THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM FOR SOUTH CENTRAL
WISCONSIN. THE MAIN THREAT IS LARGE HAIL AND STRONG DAMAGING WIND.
AN ISOLATED TORNADO IS POSSIBLE.

ONCE THE LINE OF STORMS MOVES THROUGH...THAT SHOULD MARK THE END
OF THUNDERSTORMS FOR THE REMAINDER OF THE NIGHT.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH SATURDAY

THERE IS A SLIGHT CHANCE OF THUNDERSTORMS ON SUNDAY. THE CHANCE
OF THUNDERSTORMS RETURNS FOR TUESDAY THROUGH THURSDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE NEEDED THIS EVENING.

LMZ643>646-292030-
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-
318 PM CDT SAT MAY 28 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE MICHIGAN.

.DAY ONE...TONIGHT

AREAS OF FOG CAN BE EXPECTED OVER THE COOL LAKE MICHIGAN WATERS.

THERE IS A CHANCE OF THUNDERSTORM MAINLY THIS EVENING. SOME STORMS
COULD PRODUCE WINDS IN EXCESS OF 35 KNOTS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH SATURDAY

THERE IS A SLIGHT CHANCE OF THUNDERSTORMS ON SUNDAY. THE CHANCE
OF THUNDERSTORMS RETURNS FOR TUESDAY THROUGH THURSDAY.

WWW.WEATHER.GOV/MKX

In the hours before

Local storm report, May 28, 8:11 PM CDT, 33 minutes before
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Special weather statement, May 28, 8:12 PM CDT, 32 minutes before
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Local storm report, May 28, 8:20 PM CDT, 24 minutes before
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Local storm report, May 28, 8:37 PM CDT, 7 minutes before
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Local storm report, May 28, 8:39 PM CDT, 5 minutes before
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Special weather statement, May 28, 8:44 PM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 28, 7:05 PM CDTSevere Thunderstorm WarningMKXDodge, Fond du Lac, Green Lake25 min
May 28, 7:09 PM CDTSevere Thunderstorm WarningMKXRock36 min
May 28, 7:32 PM CDTSevere Thunderstorm WarningMKXJefferson, Rock, Walworth28 min
May 28, 7:49 PM CDTSevere Thunderstorm WarningMKXJefferson, Waukesha26 min
May 28, 7:54 PM CDTSpecial Marine WarningMKX111 min
May 28, 8:12 PM CDTSpecial Weather StatementMKXWalworth, Washington, Waukesha33 min
May 28, 9:25 PM CDTSpecial Weather StatementMKXKenosha, Milwaukee, Racine35 min
May 28, 9:28 PM CDTSpecial Weather StatementMKXSheboygan17 min
May 28, 10:00 PM CDTSpecial Weather StatementMKXKenosha, Milwaukee, Racine30 min
May 29, 6:55 PM CDTSpecial Weather StatementMKXDane20 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.