Alert archive / Wisconsin / Special Weather Statements in 2019

Special Weather Statement, NWS Milwaukee, WI

June 1, 2019Rock County, Walworth County, Wisconsin

NWS Milwaukee, WI issued this special weather statement at Jun 1, 2019, 3:07 PM CDT for Rock County, Walworth County, Wisconsin. It was in force for 53 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: Jun 1, 2019, 3:07 PM CDT (20:07 UTC)
Expired: Jun 1, 2019, 4:00 PM CDT
In force: 53 min
Issued by: NWS Milwaukee, WI

Counties Rock County, WI, Walworth County, WI

The radar

The Milwaukee radar (KMKX), 49 km from the middle of the area, began a volume at 20:06 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, 8.1 hours before the alert went out and 171 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 746 J/kg
Mixed-layer CIN: -192 J/kg
Mixed-layer LCL: 1709 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: -45 m²/s²
0-3 km storm-relative helicity: -9 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 Jun 1, 2:57 PM CDT, 10 minutes earlier.

Area forecast discussion, Jun 1, 2:57 PM CDT, 10 minutes before

Area Forecast Discussion
National Weather Service Milwaukee/Sullivan WI
257 PM CDT Sat Jun 1 2019

.DISCUSSION...

Tonight - Confidence...Medium
Mid level wave and surface front will shift southeast of the area
this evening taking any lingering storms with it. Biggest severe
threat will be co-located with higher MLCAPE environment in SC
WI, especially south of I-94. Modest effective shear and mid level
lapse rates support the severe risk. Severe Watch 305 has this
handled well. Cool and dry air advection takes hold later this
evening on northwest winds.

Sunday through Monday night - Confidence...Medium to High
Dry high pressure will dominate with low level thermal trough
influencing our wx into Sunday night. As Monday wears on we will
see a return flow set up with 850 winds being more westerly
signaling the return of waa. At this time will keep things dry per
GFS/ECMWF.

Tuesday and Wednesday - Confidence...Medium
Mid level flow turns wnw with a couple different waves coming
through this period. This will combine with a surface low/frontal
boundary moving through to bring chances of showers/thunderstorms.
the chance will stick around until the front gets far enough to
our south, which it should by Wednesday evening.

Wednesday night through Saturday - Confidence...Low
The 01.12z model suite has flipped back to the ridge dominating
with low pressure suppressed to our south. The 01.00z run was a
much wetter scenario with the low in a much further north position
bringing with it the potential for much more rainfall. Expecting
that there will be more flipping and flopping yet to come.

&&

.AVIATION(21Z TAFS)...Main focus will be thunderstorms through
early this evening. Convection has increased across SC WI and will
move through SC and SE WI through early this evening. Some of
these storms will be strong or severe. A Severe Thunderstorm Watch
is in effect through 9 pm. Once front goes through some MVFR cigs/vsbys
will be possible for a time though overall trend will be towards
clearing skies with high pressure settling across for Sunday.

&&

.MARINE...Main concern will be the potential for strong to severe
storms for the rest of this afternoon into the early evening
hours. Severe Thunderstorm Watch in effect until 9 pm for areas
from North Point Light to Winthrop Harbor. So these areas from the
shore out to mid lake are most vulnerable to these stronger or
even severe storms through early this evening.

&&

.MKX WATCHES/WARNINGS/ADVISORIES...
WI...None.
LM...None.
&&

Tonight/Sunday and Aviation/Marine...Collar
Sunday Night through Saturday...Collar

Hazardous weather outlook, Jun 1, 10:17 AM CDT, 4 hours 50 minutes before

Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
1017 AM CDT Sat Jun 1 2019

WIZ046-047-051-052-056>060-062>072-021530-
Marquette-Green Lake-Fond Du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
1017 AM CDT Sat Jun 1 2019

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

.DAY ONE...This Afternoon and Tonight

A few thunderstorms will remain possible this morning, mainly
across the lakeshore counties.

Additional thunderstorms are expected to develop around mid day
across southwestern Wisconsin, and push through the outlook area
during the afternoon and early evening hours. Some strong or
severe thunderstorms are possible with this activity, especially
along and south of the Interstate 94 corridor. Large hail and high
winds will be the main threat, though a tornado or two is not out
of the question. Frequent lightning can also be expected.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

There are small chances for thunderstorms from Tuesday through
Friday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed this afternoon.

LMZ643>646-021530-
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-
1017 AM CDT Sat Jun 1 2019

This Hazardous Weather Outlook is for the nearshore waters from
Sheboygan Wisconsin to Winthrop Harbor Illinois.

.DAY ONE...This Afternoon and Tonight

Thunderstorms are expected this morning, with an additional round
expected late this afternoon into early this evening. Some strong
to severe thunderstorms are possible, especially with the
afternoon activity. Hail, high winds, and locally higher waves
will be possible.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Gusty north winds will approach Small Craft Advisory levels on
Sunday.

There are small chances for thunderstorms from Tuesday afternoon
into Wednesday, and again on Friday.

LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868-
870-872-874-876-878-021530-
Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to
mid-line of lake.-
Lake Michigan from Seul Choix Point to Rock Island Passage 5NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and North of a line from Charlevoix MI to South
Fox Island 5NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5NM Offshore to
mid lake-
Lake Michigan from Point Betsie to Manistee MI 5NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI 5NM
offshore to mid lake-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5NM offshore to Mid
Lake-
Lake Michigan from Sheboygan to Port Washington WI 5NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor to Michigan City in 5NM
offshore to Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5NM offshore to Mid
Lake-
Lake Michigan from Whitehall to Pentwater MI 5NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5NM offshore to Mid
lake-
Lake Michigan from St Joseph to South Haven MI 5NM offshore to
Mid Lake-
1017 AM CDT Sat Jun 1 2019

This Hazardous Weather Outlook is for the open waters of Lake
Michigan.

.DAY ONE...This Afternoon and Tonight

Scattered thunderstorms will continue across the southern portions
of the lake this morning and early this afternoon. Another round
of storms is then expected late this afternoon and this evening,
again over the south half. High winds, locally higher waves,
large hail, and perhaps a waterspout or two will be possible with
this activity.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

There are small chances for thunderstorms from Tuesday afternoon
into Wednesday, and again on Friday.

www.weather.gov/mkx

In the hours before

Local storm report, Jun 1, 9:17 AM CDT, 5 hours 50 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
917 AM CDT SAT JUN 1 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0906 AM     HAIL             1 SE MUKWONAGO          42.85N 88.32W
06/01/2019  E0.70 INCH       WAUKESHA           WI   PUBLIC

&&

ARB

Special weather statement, Jun 1, 2:04 PM CDT, 1 hour 3 minutes before

Special Weather Statement
National Weather Service Milwaukee/Sullivan WI
204 PM CDT Sat Jun 1 2019

WIZ062-063-068-011945-
Green-Iowa-Dane-
204 PM CDT Sat Jun 1 2019

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN GREEN AND SOUTHWESTERN
DANE COUNTIES...

At 203 PM CDT, a strong thunderstorm was located near New Glarus, or
9 miles south of Mount Horeb, moving east at 25 mph.

Winds in excess of 40 mph and nickel size hail are possible with this
storm.

Locations impacted include...
Fitchburg, Verona, Oregon, Mount Horeb, Belleville, New Glarus,
Brooklyn, Monticello, Albany, Dayton, Mount Vernon and Paoli.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 4278 8984 4281 8984 4304 8977 4299 8936
      4269 8937
TIME...MOT...LOC 1903Z 271DEG 22KT 4287 8969

DDV

Local storm report, Jun 1, 2:31 PM CDT, 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
231 PM CDT SAT JUN 1 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0218 PM     HAIL             2 NW NEW GLARUS         42.83N 89.66W
06/01/2019  E0.70 INCH       GREEN              WI   PUBLIC

&&

ARB

Local storm report, Jun 1, 2:43 PM CDT, 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
243 PM CDT SAT JUN 1 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0230 PM     HAIL             1 S NEW GLARUS          42.79N 89.63W
06/01/2019  E1.25 INCH       GREEN              WI   PUBLIC

&&

ARB

Special weather statement, Jun 1, 3:07 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Milwaukee/Sullivan WI
307 PM CDT Sat Jun 1 2019

WIZ069-070-012100-
Walworth-Rock-
307 PM CDT Sat Jun 1 2019

...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT WALWORTH AND ROCK
COUNTIES THROUGH 4 PM...

At 306 PM CDT, strong thunderstorms were clustered near Whitewater
and Janesville, moving east at 25 mph.

Winds in excess of 40 mph and hail up to nickel size are possible
with these storms.

Locations impacted include...
Janesville, Beloit, Whitewater, Elkhorn, Delavan, Lake Geneva,
Milton, Edgerton, Evansville, East Troy, Williams Bay, Genoa City,
Walworth, Clinton, Fontana-On-Geneva Lake, Sharon, Darien,
Orfordville, Footville and Como.

Frequent cloud to ground lightning and heavy rain are occurring with
these storms. Lightning can strike 10 miles away from a
thunderstorm. Seek a safe shelter inside a building or vehicle.

Storms may intensify, so be certain to monitor local radio stations
and available television stations for additional information and
possible warnings from the National Weather Service.

A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
south central and southeastern Wisconsin.

LAT...LON 4250 8936 4284 8937 4284 8831 4250 8831
TIME...MOT...LOC 2006Z 272DEG 22KT 4276 8868

MRC

The office that day

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

Issued	Product	Office	Counties	Lasted
May 31, 9:00 PM CDT	Special Marine Warning	MKX		45 min
May 31, 10:52 PM CDT	Special Marine Warning	MKX		53 min
Jun 1, 5:07 AM CDT	Special Weather Statement	MKX	Green Lake	23 min
Jun 1, 5:34 AM CDT	Special Weather Statement	MKX	Fond du Lac	26 min
Jun 1, 6:05 AM CDT	Special Weather Statement	MKX	Fond du Lac	25 min
Jun 1, 6:36 AM CDT	Special Weather Statement	MKX	Sheboygan	9 min
Jun 1, 7:02 AM CDT	Special Weather Statement	MKX	Milwaukee	28 min
Jun 1, 7:35 AM CDT	Special Weather Statement	MKX	Walworth	40 min
Jun 1, 8:11 AM CDT	Special Weather Statement	MKX	Rock	34 min
Jun 1, 8:17 AM CDT	Special Weather Statement	MKX	Walworth	43 min
Jun 1, 2:04 PM CDT	Special Weather Statement	MKX	Green	41 min
Jun 1, 2:14 PM CDT	Severe Thunderstorm Warning	MKX	Dane, Green, Rock	46 min
Jun 1, 3:25 PM CDT	Special Weather Statement	MKX	Kenosha, Milwaukee, Racine	65 min
Jun 1, 3:31 PM CDT	Severe Thunderstorm Warning	MKX	Kenosha, Racine, Walworth	44 min
Jun 1, 3:48 PM CDT	Special Marine Warning	MKX		117 min
Jun 1, 4:13 PM CDT	Areal Flood Advisory	MKX	Kenosha, Racine, Walworth	2 hr
Jun 1, 4:23 PM CDT	Severe Thunderstorm Warning	MKX	Kenosha, Walworth	37 min

Nearby

Special Weather Statements in Wisconsin, 2019 Every special weather statement 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.