Alert archive / Wisconsin / Small Craft Advisories in 2018

Small Craft Advisory 67, NWS Milwaukee, WI

August 27, 2018

NWS Milwaukee, WI issued this small craft advisory at Aug 27, 2018, 3:27 AM CDT. It took effect at Aug 27, 2018, 10:00 AM CDT. It was in force for 33 hr.

The area

The counties it named.

The facts

Issued
Aug 27, 2018, 3:27 AM CDT (08:27 UTC)
In effect from
Aug 27, 2018, 10:00 AM CDT
Expired
Aug 28, 2018, 7:00 PM CDT
In force
33 hr
Issued by
NWS Milwaukee, WI

The text

As transmitted.

247 
WHUS73 KMKX 270827
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
327 AM CDT Mon Aug 27 2018

...GUSTY WINDS DEVELOPING LATER THIS MORNING...

LMZ643>646-271630-
/O.NEW.KMKX.SC.Y.0067.180827T1500Z-180829T0000Z/
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-
327 AM CDT Mon Aug 27 2018

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 7 PM
CDT TUESDAY...

The National Weather Service in Milwaukee/Sullivan has issued a
Small Craft Advisory...which is in effect from 10 AM this morning
to 7 PM CDT Tuesday. 

* WINDS: Southeast to south winds 5 to 15 knots turning to the
  southwest this morning and increasing to 10 to 20 knots with
  gusts to 25 knots, especially closer to shore.  

* WAVES: Building to 2 to 4 feet. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$
www.weather.gov/mkx

Kavinsky
8 follow-up statements
623 
WHUS73 KMKX 271127
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
627 AM CDT Mon Aug 27 2018

...GUSTY WINDS DEVELOPING LATER THIS MORNING...
...AREAS OF DENSE FOG NORTH OF PORT WASHINGTON THIS MORNING...

LMZ643-271930-
/O.NEW.KMKX.MF.Y.0017.180827T1127Z-180827T1500Z/
/O.CON.KMKX.SC.Y.0067.180827T1500Z-180829T0000Z/
Sheboygan to Port Washington WI-
627 AM CDT Mon Aug 27 2018

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CDT THIS MORNING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING
TO 7 PM CDT TUESDAY...

The National Weather Service in Milwaukee/Sullivan has issued a
Dense Fog Advisory...which is in effect until 10 AM CDT this
morning. 

* WINDS: Southeast to south winds 5 to 15 knots turning to the 
  southwest this morning and increasing to 10 to 20 knots with 
  gusts to 25 knots, especially closer to shore. 

* WAVES: Building to 2 to 4 feet.

* VISIBILITY: Frequent visibilities of one mile or less this
  morning in dense fog. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

A Dense Fog Advisory means visibilities will frequently be
reduced to less than one mile. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions. 

&&

$$

LMZ644>646-271930-
/O.CON.KMKX.SC.Y.0067.180827T1500Z-180829T0000Z/
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
627 AM CDT Mon Aug 27 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING
TO 7 PM CDT TUESDAY...

* WINDS: Southeast to south winds 5 to 15 knots turning to the 
  southwest this morning and increasing to 10 to 20 knots with 
  gusts to 25 knots, especially closer to shore. 

* WAVES: Building to 2 to 4 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$
www.weather.gov/mkx

mbk
984 
WHUS73 KMKX 271436
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
936 AM CDT Mon Aug 27 2018

...GUSTY SOUTHWEST WINDS DEVELOPING... 
...AREAS OF DENSE FOG NORTH OF PORT WASHINGTON THIS MORNING...

LMZ643-271800-
/O.EXT.KMKX.MF.Y.0017.000000T0000Z-180827T1600Z/
/O.CON.KMKX.SC.Y.0067.180827T1500Z-180829T0000Z/
Sheboygan to Port Washington WI-
936 AM CDT Mon Aug 27 2018

...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 11 AM CDT THIS
MORNING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT
TUESDAY...

The Dense Fog Advisory is in effect until 11 AM CDT this morning.


* WINDS: South 10 to 20 knots with wind gusts to 25 knots, 
  especially closer to shore. 

* WAVES: 2 to 4 feet.

* VISIBILITY: Frequent visibilities of one mile or less this 
  morning in dense fog. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

A Dense Fog Advisory means visibilities will frequently be
reduced to less than one mile. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

LMZ644>646-271800-
/O.CON.KMKX.SC.Y.0067.180827T1500Z-180829T0000Z/
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
936 AM CDT Mon Aug 27 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT
TUESDAY...

* WINDS: Southwest 10 to 20 knots with gusts to 25 knots, 
  especially closer to shore. 

* WAVES: Building to 2 to 4 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$
Cronce

www.weather.gov/mkx
833 
WHUS73 KMKX 271635
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
1135 AM CDT Mon Aug 27 2018

...GUSTY SOUTHWEST WINDS TODAY...

LMZ643>646-280045-
/O.CON.KMKX.SC.Y.0067.000000T0000Z-180829T0000Z/
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-
1135 AM CDT Mon Aug 27 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT
TUESDAY...

* WINDS: Southwest 10 to 20 knots with gusts to 25 knots, 
  especially closer to shore. 

* WAVES: 2 to 4 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$
Cronce

www.weather.gov/mkx
490 
WHUS73 KMKX 272013
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
313 PM CDT Mon Aug 27 2018

...GUSTY SOUTHWEST WINDS TODAY...

LMZ643-280415-
/O.NEW.KMKX.MF.Y.0018.180827T2013Z-180828T0600Z/
/O.CON.KMKX.SC.Y.0067.000000T0000Z-180829T0000Z/
Sheboygan to Port Washington WI-
313 PM CDT Mon Aug 27 2018

...DENSE FOG ADVISORY IN EFFECT UNTIL 1 AM CDT TUESDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT
TUESDAY...

The National Weather Service in Milwaukee/Sullivan has issued a
Dense Fog Advisory...which is in effect until 1 AM CDT Tuesday. 

* WINDS: South 10 to 20 knots with gusts to 25 knots, especially 
  closer to shore. 

* WAVES: 2 to 4 feet.

* VISIBILITY: 1 mile or less.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

A Dense Fog Advisory means visibilities will frequently be
reduced to less than one mile. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions. 

&&

$$

LMZ644>646-280415-
/O.CON.KMKX.SC.Y.0067.000000T0000Z-180829T0000Z/
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
313 PM CDT Mon Aug 27 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT
TUESDAY...

* WINDS: Southerly 10 to 20 knots with gusts to 25 knots, 
  especially closer to shore. 

* WAVES: 2 to 4 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$
Cronce

www.weather.gov/mkx
684 
WHUS73 KMKX 280139
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
839 PM CDT Mon Aug 27 2018

...GUSTY SOUTHWEST WINDS TODAY...

LMZ643-280945-
/O.CON.KMKX.MF.Y.0018.000000T0000Z-180828T0600Z/
/O.CON.KMKX.SC.Y.0067.000000T0000Z-180829T0000Z/
Sheboygan to Port Washington WI-
839 PM CDT Mon Aug 27 2018

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 1 AM CDT TUESDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT
TUESDAY...

* WINDS: South 10 to 20 knots with a few gusts to 25 knots,
  especially closer to shore. 

* WAVES: 2 to 4 feet.

* VISIBILITY: 1 mile or less.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

A Dense Fog Advisory means visibilities will frequently be
reduced to less than one mile. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

LMZ644>646-280945-
/O.CON.KMKX.SC.Y.0067.000000T0000Z-180829T0000Z/
Port Washington to North Point Light WI-
North Point Light to Wind Point WI-
Wind Point WI to Winthrop Harbor IL-
839 PM CDT Mon Aug 27 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT
TUESDAY...

* WINDS: Southerly 10 to 20 knots with gusts to 25 knots, 
  especially closer to shore. 

* WAVES: 2 to 4 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$


www.weather.gov/mkx
011 
WHUS73 KMKX 280844
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
344 AM CDT Tue Aug 28 2018

...GUSTY SOUTHWEST WINDS TODAY...

LMZ643>646-281645-
/O.CON.KMKX.SC.Y.0067.000000T0000Z-180829T0000Z/
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-
344 AM CDT Tue Aug 28 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

* WINDS: Variable winds early this morning becoming southwest 10
  to 20 knots with gusts to 25 knots later this morning and into
  the afternoon.  

* WAVES: 1 to 3 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$


www.weather.gov/mkx
121 
WHUS73 KMKX 281435
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
935 AM CDT Tue Aug 28 2018

...GUSTY SOUTHWEST WINDS TODAY...

LMZ643>646-282245-
/O.CON.KMKX.SC.Y.0067.000000T0000Z-180829T0000Z/
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-
935 AM CDT Tue Aug 28 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

* WINDS: South to southwest 10 to 20 knots with gusts to 25 
  knots.

* WAVES: 1 to 3 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$
Cronce

www.weather.gov/mkx
152 
WHUS73 KMKX 282020
MWWMKX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Milwaukee/Sullivan WI
320 PM CDT Tue Aug 28 2018

...GUSTY SOUTH WINDS INTO THE EVENING...

LMZ643>646-290000-
/O.CON.KMKX.SC.Y.0067.000000T0000Z-180829T0000Z/
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-
320 PM CDT Tue Aug 28 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

* WINDS: South 10 to 20 knots with gusts to 25 knots. 

* WAVES: 1 to 3 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$
Cronce

www.weather.gov/mkx

What forecasters said that day

The local office's own words before this small craft advisory 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 small craft advisory went out at Aug 26, 8:43 PM CDT, 6 hours 44 minutes earlier.

Area forecast discussion, Aug 26, 8:43 PM CDT, 6 hours 44 minutes before
Area Forecast Discussion
National Weather Service Milwaukee/Sullivan WI
843 PM CDT Sun Aug 26 2018

.UPDATE...

Using the SPC Mesoanalysis low level thermal gradient and subtle
radar depiction of outflow boundaries, the effective low level
boundary likely stretches from about South Milwaukee, east to near
Madison, then northeast toward Sauk county. This boundary is of
concern as the increasing low level jet impinging on it will
likely result in repeated rounds of showers and storms north of
this boundary. It will not be stationary and may shift north with
time due to the strengthening low level jet. As mentioned in the
previous discussion, caution is advised as any strong convection
can manipulate that boundary in surprising ways. But, current
trends suggest the core of the higher rainfall would focus over
the northern half of our forecast area, or roughly north of
I-94...give or take a few miles for uncertainty. The southern tier
of counties should escape much of the heavy rainfall tonight.

The main threat overnight will be heavy rainfall. Some areas north
of a Milwaukee to Madison to Baraboo line have received between 1
and 2 inches of rain already this evening. We'll have to keep an
eye on trends, but local flooding is a real possibility.

Secondarily, strong, damaging straight-line winds are possible in
any stronger thunderstorms. The atmosphere is warm to a quite a
depth, thus limiting the hail threat.

&&

.MARINE...
Scattered thunderstorms are likely through the night, especially
north of Milwaukee, and a few could be strong or severe, with
gusty winds. Frequent lightning is also expected.

Southwest winds will gust to near Small Craft Advisory levels on
Monday and Tuesday. There will be additional thunderstorm chances
late Monday night and again on Tuesday.

A cold front will sweep through the area late Tuesday, with high
pressure building into the area on Wednesday and Thursday.

&&

.PREV DISCUSSION... (Issued 546 PM CDT Sun Aug 26 2018)

UPDATE...

This first round of storms was likely triggered by an old MCV from
convection upstream much earlier. This will blow out over the lake
by 7 pm. Then we should be mostly quiet into the later evening
hours. We then expect another round of storms to develop as the
low level jet strengthens into Wisconsin. The concern we have is
related to any potential latitudinally oriented old convective
boundary with the jet pointing across it. This could set up
training storm scenario. It's very difficult to pin point where or
if that will happen. For now, the encouraging news is that the
more reliable guidance is keeping the core of that heavier rain
north of Madison and Milwaukee. But, vigilance is required as
convection can and will take on a life of its own and throw a
monkey wrench in our expectations.

AVIATION(00Z TAFS)...

We should remain VFR through the TAF period. The exception will be
a period of lowering CIGS to MVFR or even IFR in any stronger
thunderstorm activity. Once the storms across the southeast
push out over the lake early this evening, we should be generally
quiet into the later evening hours. Then another round of showers
and storms is expected from about 05-08z Mon...give or take. Once
that moves out, we will just have a lingering smaller chance of
showers and storms through the remainder of the TAF period.

PREV DISCUSSION... (Issued 224 PM CDT Sun Aug 26 2018)

SHORT TERM...
Rest of this Afternoon through Tonight..Forecast Confidence is
Medium...

Clusters of thunderstorms are expected to move into the western
portions of the forecast area around 4 PM or so. These should then
move east with time through the evening hours. Additional
development can be expected along various outflow boundaries,
making for what will likely be a rather messy evening of
convection. Instability is quite high across the area, so once
convection does develop, there will be an associated wind gust
threat. There will also be a threat for large hail, though this
will be mitigated somewhat by high freezing levels. The tornado
threat is low but non-zero, with eastward surging line segments
and boundary interactions as the most likely features from which
to see a brief tornado.

Additional thunderstorm development is then expected late this
evening into the overnight as the low level jet noses into the
area. The most widespread activity late tonight should be across
central Wisconsin, though a few scattered storms may develop
across the southern portion of the state.

Along with the threat for severe weather, heavy rain and flooding
remain a significant concern. With PWATs in excess of 2 inches,
lots of CAPE and high freezing levels, rainfall rates will be very
high with any convection this afternoon. Even with progressive
movement, today's storms could easily produce a quick 1-2" of rain
in less than an hour. The flood and flash flood threat will be
greatest across the central and southern forecast area, where
soils are most saturated from last week's rainfall.

Monday through Tuesday Morning - Confidence...Medium

Another hot and humid day is on tap for Monday as southwesterly
flow continues across southern Wisconsin. Appears as though there
will be some leftover showers extending from central Lake Michigan
southwest through southwest Wisconsin Monday morning downstream
from an elongated mid level shortwave trough. Once this convection
clears by late morning, temperatures should quickly rise while
surface dew points linger in the low to mid 70s. Heat indices max
out around the mid 90s in the afternoon, so a heat advisory is not
looking likely at this point.

Convection should then initiate in northwest Wisconsin Monday
afternoon and push east-southeast into the low level moisture
transport which will be nosing up into northern Wisconsin. The
main question is with how far south that MCS makes it and whether
it just stays up in northern WI along the strengthening LLJ. Given
the strong low level winds, unstable air mass feeding into it
(~2000 J/kg 0-3km MUCAPE) and decent 0-6km effective shear of
30-40kts, can not rule out the chance of severe thunderstorms for
southern Wisconsin, mainly on Monday night. Damaging winds, large
hail and heavy rainfall would be the main concerns. Precipitable
water will be up around 2", so some localized flash flooding is
certainly possible if the MCS holds up in any areas.

LONG TERM...
Tuesday through Wednesday Night - Confidence...Medium
Fairly consistent idea between the 26.12z guidance in bringing the
cold front into the region on Tuesday but each model has it's own
idea of where the convection will initiate. With the ingredients
for severe weather will still be there with decent mid level winds
and an unstable air mass in place ahead of the front. Just a
matter of what the previous night's convection does and where
boundaries set up. What happens on Wednesday is a bit up in the
air as the previous runs of the NAM/GFS/ECMWF had the front well
to the east but now the 26.12z NAM/ECMWF bring another shortwave
through the mid level flow and bring another round of convection
into the region.

Thursday through Saturday - Confidence...Medium to Low
With ridging in place for Thursday and Friday, it appears as
though there will be a few dry and seasonal days in there before
the front lifts back to the north by next weekend. Saturday
appears to be the next best chance for storms with the front again
cleared by Sunday.

AVIATION(18Z TAFS)...

Thunderstorms are expected to affect the area this evening. There
will likely be a prolonged period of scattered activity from late
afternoon or early evening into the mid to late evening hours. Did
indicate via TEMPO groups the most likely timeframe for
thunderstorm impacts, which look to be during the early to mid
evening hours.

Outside of thunderstorm impacts, winds will start to increase from
the southwest later tonight and tomorrow. A few gusts around 20
knots are possible tomorrow mid day through the afternoon.

MARINE...

Areas of Dense Fog will remain possible into early evening,
especially north of North Point Light. Fog will be most widespread
near open waters.

Scattered thunderstorms are likely this evening, and a few could
be strong or severe, with gusty winds. Frequent lightning is also
expected.

Southwest winds will gust to near Small Craft Advisory levels on
Monday and Tuesday. There will be additional thunderstorm chances
late Monday night and again on Tuesday.

A cold front will sweep through the area late Tuesday, with high
pressure building into the area on Wednesday and Thursday.

&&

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

Update...Davis
Tonight/Monday and Aviation/Marine...Boxell
Monday Night through Sunday...Halbach
Hazardous weather outlook, Aug 27, 3:14 AM CDT, 13 minutes before
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
314 AM CDT Mon Aug 27 2018

WIZ046-047-051-052-056>060-062>072-280815-
Marquette-Green Lake-Fond Du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
314 AM CDT Mon Aug 27 2018

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

.DAY ONE...Today and Tonight

Thunderstorms are likely through early morning, with locally
heavy rainfall and flooding the main threat.

Thunderstorms will develop in the area again later today into
tonight. There remains some uncertainty if these storms will
effect southern Wisconsin. If they do, severe storms and heavy
rainfall will be possible tonight.

Heat index values will reach the middle to upper 90s today,
possibly hitting 100 in southeast Wisconsin.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Additional rounds of thunderstorms are likely later Tuesday into
Wednesday morning. There will be a threat for severe thunderstorms
and heavy rainfall once again. The possible heavy rain will
result in a risk for flooding, especially for areas that have seen
very heavy rain over the last week.

Heat index values may reach the middle 90s on Tuesday.

A chance for thunderstorms will return for Friday night and
Saturday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed tonight.

LMZ643>646-280815-
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-
314 AM CDT Mon Aug 27 2018

This Hazardous Weather Outlook is for portions of Lake Michigan.

.DAY ONE...Today and Tonight

A Small Craft Advisory goes into effect at 10 am for gusty
southwest winds.

Thunderstorms are likely through early morning. Storms will then
develop in the area again later today into tonight. There remains
some uncertainty if these storms will effect the nearshore waters
of southern Wisconsin. If they do, severe thunderstorms will be
possible tonight.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

The Small Craft Advisory will be in effect through early Tuesday
evening due to persistent gusty southwest winds.

Additional rounds of thunderstorms are likely later Tuesday into
Wednesday morning. There will be a threat for severe thunderstorms
once again.

A chance for thunderstorms will return for Friday night and
Saturday.

DDV

www.weather.gov/mkx

In the hours before

Local storm report, Aug 26, 11:25 PM CDT, 4 hours 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1125 PM CDT SUN AUG 26 2018

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

1045 PM     TSTM WND DMG     3 SSW OCONOMOWOC LAKE   43.06N 88.48W
08/26/2018                   WAUKESHA           WI   LAW ENFORCEMENT

            TREES DOWN ON DOUSMAN ROAD IN TOWN OF
            SUMMIT. TIME ESTIMATED FROM RADAR.

&&

WOOD
Local storm report, Aug 27, 1:20 AM CDT, 2 hours 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
120 AM CDT MON AUG 27 2018

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

1145 PM     FLASH FLOOD      1 S MEQUON              43.23N 87.98W
08/26/2018                   OZAUKEE            WI   LAW ENFORCEMENT

            INTERSECTION OF CEDARBURG ROAD AND DIVISION
            STREET CLOSED DUE TO FLOODING. A FEW OTHER
            INTERSECTIONS IN MEQUON ALSO ARE FLOODED.

&&

WOOD
Local storm report, Aug 27, 1:45 AM CDT, 1 hour 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
145 AM CDT MON AUG 27 2018

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

1125 PM     FLASH FLOOD      2 SW WHITEFISH BAY      43.09N 87.94W
08/26/2018                   MILWAUKEE          WI   BROADCAST MEDIA

            STALLED VEHICLES IN FLOODED INTERSECTION OF
            TEUTONIA AVENUE AND CAPITOL DRIVE. MORE
            FLOODING AT INTERSECTION OF 20TH STREET AND
            CAPITOL DRIVE.

&&

WOOD
Local storm report, Aug 27, 2:54 AM CDT, 33 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
254 AM CDT MON AUG 27 2018

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

1200 AM     HEAVY RAIN       GERMANTOWN              43.24N 88.12W
08/27/2018  M3.95 INCH       WASHINGTON         WI   MESONET

            MMSD RAIN GAUGE.

0225 AM     HEAVY RAIN       3 W CEDARBURG           43.30N 88.05W
08/27/2018  M3.76 INCH       OZAUKEE            WI   PUBLIC

1200 AM     HEAVY RAIN       1 N GLENDALE            43.14N 87.93W
08/27/2018  M3.56 INCH       MILWAUKEE          WI   MESONET

            MMSD RAIN GAUGE.

1200 AM     HEAVY RAIN       MEQUON                  43.23N 87.99W
08/27/2018  M3.40 INCH       OZAUKEE            WI   BROADCAST MEDIA

1200 AM     HEAVY RAIN       3 ENE BUTLER            43.13N 88.01W
08/27/2018  M3.34 INCH       MILWAUKEE          WI   MESONET

            MMSD RAIN GAUGE.

1200 AM     HEAVY RAIN       2 SW GLENDALE           43.12N 87.95W
08/27/2018  M3.19 INCH       MILWAUKEE          WI   MESONET

            MMSD RAIN GAUGE.

1200 AM     HEAVY RAIN       2 ESE CEDARBURG         43.28N 87.94W
08/27/2018  M3.14 INCH       OZAUKEE            WI   PUBLIC

            MMSD RAIN GAUGE.

1200 AM     HEAVY RAIN       3 W BROWN DEER          43.17N 88.04W
08/27/2018  M2.95 INCH       MILWAUKEE          WI   MESONET

            MMSD RAIN GAUGE.

0225 AM     HEAVY RAIN       1 ESE WEST BEND         43.42N 88.17W
08/27/2018  M2.94 INCH       WASHINGTON         WI   PUBLIC

0225 AM     HEAVY RAIN       JACKSON                 43.32N 88.16W
08/27/2018  M2.76 INCH       WASHINGTON         WI   CO-OP OBSERVER

0225 AM     HEAVY RAIN       BROWN DEER              43.18N 87.97W
08/27/2018  M2.74 INCH       MILWAUKEE          WI   PUBLIC

0225 AM     HEAVY RAIN       4 WNW WEST BEND         43.45N 88.26W
08/27/2018  M2.46 INCH       WASHINGTON         WI   PUBLIC

1200 AM     HEAVY RAIN       4 NW MILWAUKEE          43.08N 87.96W
08/27/2018  M2.41 INCH       MILWAUKEE          WI   MESONET

            MMSD RAIN GAUGE.

1200 AM     HEAVY RAIN       2 NNE MENOMONEE FALLS   43.18N 88.10W
08/27/2018  M2.29 INCH       WAUKESHA           WI   MESONET

            MMSD RAIN GAUGE.

1200 AM     HEAVY RAIN       1 SSE MILWAUKEE         43.02N 87.90W
08/27/2018  M2.26 INCH       MILWAUKEE          WI   MESONET

            MMSD RAIN GAUGE.

1200 AM     HEAVY RAIN       3 S MILWAUKEE           43.00N 87.91W
08/27/2018  M2.22 INCH       MILWAUKEE          WI   MESONET

            MMSD RAIN GAUGE.

1200 AM     HEAVY RAIN       PORT WASHINGTON         43.39N 87.88W
08/27/2018  M2.20 INCH       OZAUKEE            WI   BROADCAST MEDIA

0225 AM     HEAVY RAIN       3 E LOMIRA              43.59N 88.38W
08/27/2018  M2.08 INCH       FOND DU LAC        WI   PUBLIC

&&
Local storm report, Aug 27, 3:04 AM CDT, 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
304 AM CDT MON AUG 27 2018

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

0230 AM     FLASH FLOOD      GRAFTON                 43.32N 87.95W
08/27/2018                   OZAUKEE            WI   LAW ENFORCEMENT

            STREET FLOODING IN GRAFTON, SAUKVILLE AND
            PORT WASHINGTON.

&&

WOOD
Local storm report, Aug 27, 3:05 AM CDT, 22 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
305 AM CDT MON AUG 27 2018

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

0300 AM     HEAVY RAIN       1 SE THIENSVILLE        43.23N 87.96W
08/27/2018  M4.00 INCH       OZAUKEE            WI   BROADCAST MEDIA

&&

WOOD

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 26, 8:04 PM CDTTornado WarningMKXColumbia20 min
Aug 26, 8:08 PM CDTSpecial Weather StatementMKXGreen37 min
Aug 26, 8:42 PM CDTSevere Thunderstorm WarningMKXDane, Jefferson, Rock48 min
Aug 26, 8:50 PM CDTSpecial Weather StatementMKXDodge55 min
Aug 26, 9:02 PM CDTSevere Thunderstorm WarningMKXDodge31 min
Aug 26, 9:10 PM CDTSevere Thunderstorm WarningMKXJefferson35 min
Aug 26, 9:29 PM CDTSevere Thunderstorm WarningMKXJefferson, Waukesha31 min
Aug 26, 9:38 PM CDTSevere Thunderstorm WarningMKXDodge, Washington37 min
Aug 26, 9:53 PM CDTSevere Thunderstorm WarningMKXWalworth36 min
Aug 26, 10:18 PM CDTSevere Thunderstorm WarningMKXMilwaukee, Ozaukee, Waukesha16 min
Aug 26, 10:22 PM CDTSpecial Marine WarningMKX38 min
Aug 26, 11:04 PM CDTFlash Flood WarningMKXMilwaukee, Ozaukee3 hr
Aug 26, 11:06 PM CDTSevere Thunderstorm WarningMKXMilwaukee, Waukesha39 min
Aug 26, 11:10 PM CDTSpecial Marine WarningMKX65 min
Aug 26, 11:42 PM CDTSevere Thunderstorm WarningMKXRock, Walworth19 min
Aug 26, 11:48 PM CDTSpecial Marine WarningMKX57 min
Aug 27, 12:56 AM CDTSpecial Marine WarningMKX64 min
Aug 27, 1:59 AM CDTFlash Flood WarningMKXOzaukee3 hr
Aug 27, 2:14 AM CDTAreal Flood AdvisoryMKXDodge, Washington3 hr
Aug 27, 2:20 AM CDTAreal Flood AdvisoryMKXOzaukee, Sheboygan3 hr
Aug 27, 5:03 AM CDTAreal Flood WarningMKXOzaukee, Washington15 hr
Aug 27, 6:27 AM CDTMarine Dense Fog AdvisoryMKX5 hr
Aug 27, 9:12 AM CDTRiver Flood WarningMKXOzaukee72 hr
Aug 27, 9:12 AM CDTRiver Flood WarningMKXOzaukee4 days
Aug 27, 11:45 AM CDTFlash Flood WatchMKXColumbia, Dane, Dodge, Fond du Lac, Green, Green Lake and 10 more35 hr
Aug 27, 3:13 PM CDTMarine Dense Fog AdvisoryMKX10 hr

Nearby

Small Craft Advisories in Wisconsin, 2018Every small craft advisory in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.