Alert archive / Wisconsin / Small Craft Advisories in 2017

Small Craft Advisory 45, NWS Green Bay, WI

June 4, 2017

NWS Green Bay, WI issued this small craft advisory at Jun 4, 2017, 4:57 AM CDT. It took effect at Jun 4, 2017, 9:00 PM CDT. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued
Jun 4, 2017, 4:57 AM CDT (09:57 UTC)
In effect from
Jun 4, 2017, 9:00 PM CDT
Expired
Jun 5, 2017, 3:20 PM CDT
In force
18 hr
Issued by
NWS Green Bay, WI

The text

As transmitted.

459 
WHUS73 KGRB 040957
MWWGRB

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREEN BAY WI
457 AM CDT SUN JUN 4 2017

...ABRUPT WIND SHIFT TO THE NORTHEAST LIKELY THIS EVENING...

.A COLD FRONT SURGING SOUTH DOWN THE LAKE AND BAY WILL RESULT IN
AN ABRUPT WIND SHIFT TO THE NORTHEAST THIS EVENING. WINDS MAY GUST
TO 20 TO 25 KNOTS FOR AN HOUR OR TWO AFTER THE WIND SHIFT BEFORE
DIMINISHING A LITTLE LATER IN THE NIGHT. WINDS WILL INCREASE AGAIN
MONDAY AS HIGH PRESSURE BUILDS TOWARD THE AREA.

LMZ521-522-541>543-041800-
/O.NEW.KGRB.SC.Y.0045.170605T0200Z-170606T0000Z/
GREEN BAY SOUTH OF LINE FROM  CEDAR RIVER TO ROCK ISLAND PASSAGE
AND NORTH OF A LINE FROM OCONTO WI TO LITTLE STURGEON BAY WI-
GREEN BAY SOUTH OF LINE FROM  OCONTO WI TO LITTLE STURGEON BAY WI-
ROCK ISLAND PASSAGE TO STURGEON BAY WI-
STURGEON BAY TO TWO RIVERS WI-TWO RIVERS TO SHEBOYGAN WI-
457 AM CDT SUN JUN 4 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 7 PM
CDT MONDAY...

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A SMALL
CRAFT ADVISORY, WHICH IS IN EFFECT FROM 9 PM THIS EVENING TO 7 PM
CDT MONDAY. 

* WINDS...WINDS WILL ABRUPTLY SHIFT TO THE NORTHEAST THIS EVENING.
  THE EXACT TIMING OF THE WIND SHIFT IS UNCERTAIN, BUT THE BEST
  ESTIMATE IS THAT IT WILL BEGIN NEAR WASHINGTON ISLAND MID-
  EVENING AND THEN REACH THE MOUTH OF THE FOX RIVER AROUND
  MIDNIGHT. IT WILL TAKE UNTIL AFTER MIDNIGHT TO CLEAR THE
  MANITOWOC COUNTY SHORELINE. WIND GUSTS OF 20 TO 25 KNOTS ARE
  POSSIBLE IMMEDIATELY FOLLOWING THE WIND SHIFT, THEN A LULL WILL
  OCCUR LATER IN THE NIGHT. NORTHEAST WINDS OF 15 TO 25 KNOTS ARE
  EXPECTED MONDAY.

* WAVES...WAVES WILL BUILD TO 2 TO 4 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OVER 20 KNOTS OR
WAVES GREATER THAN 4 FEET ARE EXPECTED TO PRODUCE HAZARDOUS
CONDITIONS TO SMALL CRAFT.  INEXPERIENCED MARINERS, ESPECIALLY
THOSE OPERATING SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE
CONDITIONS.

&&

$$

SKOWRONSKI
7 follow-up statements
445 
WHUS73 KGRB 041431
MWWGRB

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREEN BAY WI
931 AM CDT SUN JUN 4 2017

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 PM THIS EVENING...
...ABRUPT WIND SHIFT TO THE NORTHEAST LIKELY THIS EVENING...

.THE COMBINATION OF HIGH DEW POINTS AND COOL WATER TEMPERATURES
WILL RESULT IN LOW VISIBILITIES FROM STURGEON BAY NORTH TO
WASHINGTON ISLAND TODAY INTO THE EARLY EVENING HOURS. A COLD 
FRONT WILL THEN SURGE SOUTH DOWN THE LAKE AND BAY WILL RESULT IN 
AN ABRUPT WIND SHIFT TO THE NORTHEAST BY MID-EVENING. WINDS MAY 
GUST TO 20 TO 25 KNOTS FOR AN HOUR OR TWO AFTER THE WIND SHIFT 
BEFORE DIMINISHING A LITTLE LATER IN THE NIGHT. WINDS WILL 
INCREASE AGAIN MONDAY AS HIGH PRESSURE BUILDS TOWARD THE AREA.

LMZ541-042245-
/O.NEW.KGRB.MF.Y.0007.170604T1431Z-170605T0200Z/
/O.CON.KGRB.SC.Y.0045.170605T0200Z-170606T0000Z/
ROCK ISLAND PASSAGE TO STURGEON BAY WI-
931 AM CDT SUN JUN 4 2017

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING
TO 7 PM CDT MONDAY...

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A DENSE FOG
ADVISORY, WHICH IS IN EFFECT UNTIL 9 PM CDT THIS EVENING. 

* WINDS...WINDS WILL ABRUPTLY SHIFT TO THE NORTHEAST THIS EVENING. 
  THE EXACT TIMING OF THE WIND SHIFT IS UNCERTAIN, BUT THE BEST 
  ESTIMATE IS THAT IT WILL BEGIN NEAR WASHINGTON ISLAND MID- 
  EVENING AND THEN REACH THE MOUTH OF THE FOX RIVER AROUND 
  MIDNIGHT. IT WILL TAKE UNTIL AFTER MIDNIGHT TO CLEAR THE 
  MANITOWOC COUNTY SHORELINE. WIND GUSTS OF 20 TO 25 KNOTS ARE 
  POSSIBLE IMMEDIATELY FOLLOWING THE WIND SHIFT, THEN A LULL WILL 
  OCCUR LATER IN THE NIGHT. NORTHEAST WINDS OF 15 TO 25 KNOTS ARE 
  EXPECTED MONDAY.

* WAVES...WAVES WILL BUILD TO 2 TO 4 FEET.

* VISIBILITY...ONE-QUARTER OF A MILE OR LESS INTO EARLY EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OVER 20 KNOTS OR
WAVES GREATER THAN 4 FEET ARE EXPECTED TO PRODUCE HAZARDOUS
CONDITIONS TO SMALL CRAFT.  INEXPERIENCED MARINERS, ESPECIALLY
THOSE OPERATING SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE
CONDITIONS.

&&

$$

LMZ521-522-542-543-042245-
/O.CON.KGRB.SC.Y.0045.170605T0200Z-170606T0000Z/
GREEN BAY SOUTH OF LINE FROM  CEDAR RIVER TO ROCK ISLAND PASSAGE
AND NORTH OF A LINE FROM OCONTO WI TO LITTLE STURGEON BAY WI-
GREEN BAY SOUTH OF LINE FROM  OCONTO WI TO LITTLE STURGEON BAY WI-
STURGEON BAY TO TWO RIVERS WI-TWO RIVERS TO SHEBOYGAN WI-
931 AM CDT SUN JUN 4 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING
TO 7 PM CDT MONDAY...

* WINDS...WINDS WILL ABRUPTLY SHIFT TO THE NORTHEAST THIS 
  EVENING. THE EXACT TIMING OF THE WIND SHIFT IS UNCERTAIN, BUT 
  THE BEST ESTIMATE IS THAT IT WILL BEGIN NEAR WASHINGTON ISLAND 
  MID- EVENING AND THEN REACH THE MOUTH OF THE FOX RIVER AROUND 
  MIDNIGHT. IT WILL TAKE UNTIL AFTER MIDNIGHT TO CLEAR THE 
  MANITOWOC COUNTY SHORELINE. WIND GUSTS OF 20 TO 25 KNOTS ARE 
  POSSIBLE IMMEDIATELY FOLLOWING THE WIND SHIFT, THEN A LULL 
  WILL OCCUR LATER IN THE NIGHT. NORTHEAST WINDS OF 15 TO 25 
  KNOTS ARE EXPECTED MONDAY. 

* WAVES...WAVES WILL BUILD TO 2 TO 4 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OVER 20 KNOTS OR
WAVES GREATER THAN 4 FEET ARE EXPECTED TO PRODUCE HAZARDOUS
CONDITIONS TO SMALL CRAFT.  INEXPERIENCED MARINERS, ESPECIALLY
THOSE OPERATING SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE
CONDITIONS.

&&

$$

AK
079 
WHUS73 KGRB 042228
MWWGRB

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREEN BAY WI
528 PM CDT SUN JUN 4 2017

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 PM THIS EVENING... ...
ABRUPT WIND SHIFT TO THE NORTHEAST LIKELY THIS EVENING...

.THE COMBINATION OF HIGH DEW POINTS AND COOL WATER TEMPERATURES
WILL RESULT IN LOW VISIBILITIES FROM STURGEON BAY NORTH TO
WASHINGTON ISLAND TODAY INTO THE EARLY EVENING HOURS. A COLD
FRONT WILL THEN SURGE SOUTH DOWN THE LAKE AND BAY WILL RESULT IN
AN ABRUPT WIND SHIFT TO THE NORTHEAST BY MID-EVENING. WINDS MAY
GUST TO 20 TO 25 KNOTS FOR AN HOUR OR TWO AFTER THE WIND SHIFT
BEFORE DIMINISHING A LITTLE LATER IN THE NIGHT. WINDS WILL
INCREASE AGAIN MONDAY AS HIGH PRESSURE BUILDS TOWARD THE AREA.

LMZ541-050630-
/O.CAN.KGRB.MF.Y.0007.000000T0000Z-170605T0200Z/
/O.CON.KGRB.SC.Y.0045.170605T0200Z-170606T0000Z/
ROCK ISLAND PASSAGE TO STURGEON BAY WI-
528 PM CDT SUN JUN 4 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING
TO 7 PM CDT MONDAY...
...DENSE FOG ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS CANCELLED THE DENSE
FOG ADVISORY. 

&&

$$

LMZ521-522-542-543-050630-
/O.CON.KGRB.SC.Y.0045.170605T0200Z-170606T0000Z/
GREEN BAY SOUTH OF LINE FROM  CEDAR RIVER TO ROCK ISLAND PASSAGE
AND NORTH OF A LINE FROM OCONTO WI TO LITTLE STURGEON BAY WI-
GREEN BAY SOUTH OF LINE FROM  OCONTO WI TO LITTLE STURGEON BAY WI-
STURGEON BAY TO TWO RIVERS WI-TWO RIVERS TO SHEBOYGAN WI-
528 PM CDT SUN JUN 4 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING
TO 7 PM CDT MONDAY...

* WINDS...WINDS WILL ABRUPTLY SHIFT TO THE NORTHEAST THIS 
  EVENING. THE EXACT TIMING OF THE WIND SHIFT IS UNCERTAIN, BUT 
  THE BEST ESTIMATE IS THAT IT WILL BEGIN NEAR WASHINGTON ISLAND 
  MID- EVENING AND THEN REACH THE MOUTH OF THE FOX RIVER AROUND 
  MIDNIGHT. IT WILL TAKE UNTIL AFTER MIDNIGHT TO CLEAR THE 
  MANITOWOC COUNTY SHORELINE. WIND GUSTS OF 20 TO 25 KNOTS ARE 
  POSSIBLE IMMEDIATELY FOLLOWING THE WIND SHIFT, THEN A LULL 
  WILL OCCUR LATER IN THE NIGHT. NORTHEAST WINDS OF 15 TO 25 
  KNOTS ARE EXPECTED MONDAY. 

* WAVES...WAVES WILL BUILD TO 2 TO 4 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OVER 20 KNOTS OR
WAVES GREATER THAN 4 FEET ARE EXPECTED TO PRODUCE HAZARDOUS
CONDITIONS TO SMALL CRAFT.  INEXPERIENCED MARINERS, ESPECIALLY
THOSE OPERATING SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE
CONDITIONS.

&&

$$
996 
WHUS73 KGRB 050229
MWWGRB

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREEN BAY WI
929 PM CDT SUN JUN 4 2017

... GUSTY WINDS TONIGHT...

.A COLD FRONT WILL BRING IN GUSTY WINDS UP TO 20 TO 25 KNOTS FOR 
TONIGHT. THESE ARE EXPECTED TO DIMINISH BRIEFLY BEFORE PICKING UP
AGAIN MONDAY AS HIGH PRESSURE BUILDS TOWARD THE AREA.

LMZ521-522-541>543-051030-
/O.CON.KGRB.SC.Y.0045.000000T0000Z-170606T0000Z/
GREEN BAY SOUTH OF LINE FROM  CEDAR RIVER TO ROCK ISLAND PASSAGE
AND NORTH OF A LINE FROM OCONTO WI TO LITTLE STURGEON BAY WI-
GREEN BAY SOUTH OF LINE FROM  OCONTO WI TO LITTLE STURGEON BAY WI-
ROCK ISLAND PASSAGE TO STURGEON BAY WI-
STURGEON BAY TO TWO RIVERS WI-TWO RIVERS TO SHEBOYGAN WI-
929 PM CDT SUN JUN 4 2017

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

* WINDS...WIND GUSTS OF 20 TO 25 KNOTS, THEN A LULL WILL OCCUR 
  LATER IN THE NIGHT. NORTHEAST WINDS OF 15 TO 25 KNOTS ARE 
  EXPECTED MONDAY. 

* WAVES...WAVES WILL BUILD TO 2 TO 4 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OVER 20 KNOTS OR
WAVES GREATER THAN 4 FEET ARE EXPECTED TO PRODUCE HAZARDOUS
CONDITIONS TO SMALL CRAFT.  INEXPERIENCED MARINERS, ESPECIALLY
THOSE OPERATING SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE
CONDITIONS.

&&

$$
881 
WHUS73 KGRB 050944
MWWGRB

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREEN BAY WI
444 AM CDT MON JUN 5 2017

...GUSTY NORTHEAST WINDS TODAY...

.HIGH PRESSURE RIDGING SOUTH FROM HUDSON BAY CANADA WILL CREATE
GUSTY NORTHEAST WINDS ON THE LAKE AND BAY TODAY. WINDS WILL
DIMINISIH THIS EVENING.

LMZ521-522-541>543-051745-
/O.CON.KGRB.SC.Y.0045.000000T0000Z-170606T0000Z/
GREEN BAY SOUTH OF LINE FROM  CEDAR RIVER TO ROCK ISLAND PASSAGE
AND NORTH OF A LINE FROM OCONTO WI TO LITTLE STURGEON BAY WI-
GREEN BAY SOUTH OF LINE FROM  OCONTO WI TO LITTLE STURGEON BAY WI-
ROCK ISLAND PASSAGE TO STURGEON BAY WI-
STURGEON BAY TO TWO RIVERS WI-TWO RIVERS TO SHEBOYGAN WI-
444 AM CDT MON JUN 5 2017

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

* WINDS...NORTHEAST WINDS OF 15 TO 25 MPH ARE EXPECTED TODAY.

* WAVES...WAVES OF 2 TO 4 FEET ARE EXPECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OVER 20 KNOTS OR
WAVES GREATER THAN 4 FEET ARE EXPECTED TO PRODUCE HAZARDOUS
CONDITIONS TO SMALL CRAFT.  INEXPERIENCED MARINERS, ESPECIALLY
THOSE OPERATING SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE
CONDITIONS.

&&

$$
946 
WHUS73 KGRB 051422
MWWGRB

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREEN BAY WI
922 AM CDT MON JUN 5 2017

...GUSTY NORTHEAST WINDS TODAY...

.HIGH PRESSURE RIDGING SOUTH FROM HUDSON BAY CANADA WILL CREATE
GUSTY NORTHEAST WINDS ON THE LAKE AND BAY TODAY. WINDS WILL
DIMINISH THIS EVENING.

LMZ521-522-541>543-052230-
/O.CON.KGRB.SC.Y.0045.000000T0000Z-170606T0000Z/
GREEN BAY SOUTH OF LINE FROM  CEDAR RIVER TO ROCK ISLAND PASSAGE
AND NORTH OF A LINE FROM OCONTO WI TO LITTLE STURGEON BAY WI-
GREEN BAY SOUTH OF LINE FROM  OCONTO WI TO LITTLE STURGEON BAY WI-
ROCK ISLAND PASSAGE TO STURGEON BAY WI-
STURGEON BAY TO TWO RIVERS WI-TWO RIVERS TO SHEBOYGAN WI-
922 AM CDT MON JUN 5 2017

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

* WINDS...NORTHEAST 15 TO 25 KNOTS.

* WAVES...2 TO 4 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OVER 20 KNOTS OR
WAVES GREATER THAN 4 FEET ARE EXPECTED TO PRODUCE HAZARDOUS
CONDITIONS TO SMALL CRAFT.  INEXPERIENCED MARINERS, ESPECIALLY
THOSE OPERATING SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE
CONDITIONS.

&&

$$
286 
WHUS73 KGRB 051743
MWWGRB

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREEN BAY WI
1243 PM CDT MON JUN 5 2017

...GUSTY NORTHEAST WINDS TODAY...

.HIGH PRESSURE RIDGING SOUTH FROM HUDSON BAY CANADA WILL CREATE
GUSTY NORTHEAST WINDS ON THE LAKE AND BAY TODAY. WINDS WILL
DIMINISH THIS EVENING.

LMZ521-522-541>543-060000-
/O.CON.KGRB.SC.Y.0045.000000T0000Z-170606T0000Z/
GREEN BAY SOUTH OF LINE FROM  CEDAR RIVER TO ROCK ISLAND PASSAGE
AND NORTH OF A LINE FROM OCONTO WI TO LITTLE STURGEON BAY WI-
GREEN BAY SOUTH OF LINE FROM  OCONTO WI TO LITTLE STURGEON BAY WI-
ROCK ISLAND PASSAGE TO STURGEON BAY WI-
STURGEON BAY TO TWO RIVERS WI-TWO RIVERS TO SHEBOYGAN WI-
1243 PM CDT MON JUN 5 2017

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

* WINDS...NORTHEAST 10 TO 20 KNOTS WITH GUSTS TO 25 KNOTS.

* WAVES...2 TO 4 FEET.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OVER 20 KNOTS OR
WAVES GREATER THAN 4 FEET ARE EXPECTED TO PRODUCE HAZARDOUS
CONDITIONS TO SMALL CRAFT.  INEXPERIENCED MARINERS, ESPECIALLY
THOSE OPERATING SMALLER VESSELS SHOULD AVOID NAVIGATING IN THESE
CONDITIONS.

&&

$$
960 
WHUS73 KGRB 052020
MWWGRB

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE GREEN BAY WI
320 PM CDT MON JUN 5 2017

...WINDS AND WAVES DIMINISH...

.WINDS AND WAVES HAVE STARTED TO DIMINISH ACROSS THE LAKE AREAS
THIS AFTERNOON. A FEW GUSTS BETWEEN 15 AND 20 KNOTS WILL BE
POSSIBLE FOR THE NEXT COUPLE HOURS, FOLLOWED BY QUIETER CONDITIONS
INTO THE EVENING.

LMZ521-522-541>543-052130-
/O.CAN.KGRB.SC.Y.0045.000000T0000Z-170606T0000Z/
GREEN BAY SOUTH OF LINE FROM  CEDAR RIVER TO ROCK ISLAND PASSAGE
AND NORTH OF A LINE FROM OCONTO WI TO LITTLE STURGEON BAY WI-
GREEN BAY SOUTH OF LINE FROM  OCONTO WI TO LITTLE STURGEON BAY WI-
ROCK ISLAND PASSAGE TO STURGEON BAY WI-
STURGEON BAY TO TWO RIVERS WI-TWO RIVERS TO SHEBOYGAN WI-
320 PM CDT MON JUN 5 2017

...SMALL CRAFT ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS CANCELLED THE SMALL
CRAFT ADVISORY. 

WINDS AND WAVES HAVE DIMINISHED. A FEW GUSTS UP TO 15 TO 20 KNOTS
ARE STILL POSSIBLE INTO THE EVENING.

$$

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 Green Bay, WI wrote its last area forecast discussion before this small craft advisory went out at Jun 4, 4:41 AM CDT, 16 minutes earlier.

Area forecast discussion, Jun 4, 4:41 AM CDT, 16 minutes before
Area Forecast Discussion
National Weather Service Green Bay WI
441 AM CDT Sun Jun 4 2017

Forecast discussion for routine morning forecast issuance

.SYNOPSIS...
Issued at 435 AM CDT Sun Jun 4 2017

Scattered thunderstorms late today and this evening, mainly over
the northeast. Turning cooler with dry weather returning for the
start of the upcoming work week.

The western ridge/eastern trough upper pattern will undergo one
last amplification the next few days. After that, energy driving
east from the Pacific will help establish a trough over the west.
That will result in downstream ridging over the central and
eastern CONUS. How quickly the western trough starts to progress
downstream across the continent is a point of contention among the
models, but that mainly impacts things beyond the end of the
forecast period.

After another very warm (almost hot?) day today, readings will
settle back close to seasonal normals for the rest of the period.
After today, the remainder of the forecast period will be spent
in northwest flow and then near the upper ridge position, with
the primary surface front suppressed well to the south. With
limited moisture and primarily weak systems crossing the area,
amounts will probably end up below normal for the 7 day period.
&&

.SHORT TERM...Today...Tonight...and Monday
Issued at 435 AM CDT Sun Jun 4 2017

A lot of details to work out for the short-term part of the
forecast, and few aspects of the forecast are clear cut.

Patchy dense fog has formed across the area in the wake of
yesterday's convection. Winds seemed to be providing just enough
mixing to keep it from getting widespread, and with the early
sunrise at this time of year, should be able to just continue to
handle with an SPS.

The main forecast issues revolve around strong shortwave driving
southeast from southwest Ontario. Strong forcing and shear will
accompany the feature into the area late today. The main question
is the stability of the air mass when the forcing arrives. Other
than where radiational cooling has taken temperatures and dew
points down and generated fog, surface dewpoints have remained
fairly high overnight. But mesoplots show drying occurring at 850
mb. So when mixing commences as the surface warms with mainly
sunny skies after sunrise, the higher dewpoints will mix out. It's
just unclear how far they will drop, especially since significant
rain fell across most of the area yesterday. Just exactly how
much moisture lingers will play the determining role in the
stability and severe potential late today and this evening. Most
model forecast soundings were rather benign looking in terms of
buoyancy late today and this evening. But, the possibility exists
the models are drying things out too much. Will go with a
marginal/low-end severe risk consistent with the SPC SWODY1,
though confidence in severe potential is not nearly as great as
yesterday.

The other main short-term issue is the potential for a cold front
to surge down the lake and bay this evening. Models offered
varied support for this as well, and differed on timing. Really
would have liked better support among the hi-res guidance to
justify playing this feature up in the forecast. Now it looks
like another aspect of the forecast that seems like it could go
either way. In the end, leaned toward the HiRes WRFs which
suggested the front would push down the bay in the 01Z- 04Z time
frame. Even if SC.Y gusts do not materialize with the front, there
will be an abrupt wind shift which will be a concern to boaters.
In addition the northeast flow down the bay from the surface
through 850 mb Monday morning looked sufficient to warrant a
SC.Y., so decided to start one this evening to capture the wind
shift as well.

Raised temperatures a couple degrees above the recent guidance
top performers for today, then stuck close to a broad-based blend
of guidance products for the change in air mass tomorrow.

.LONG TERM...Monday Night Through Saturday
Issued at 435 AM CDT Sun Jun 4 2017

Fairly quiet pattern expected for the upcoming work week with the
best chance of showers and storms Thursday into Friday. Hudson Bay
high will dominate the weather pattern Monday night into Wednesday.
This pattern will lead to mild days and cool nights. Lowered minimum
temperatures Monday night and Tuesday night, while raising high
temperatures Tuesday and Wednesday. Performance of the model
guidance has shown a cool bias over the last week. Considering the
dry air mass in place, a larger diurnal range should be anticipated
in these cases where relative humidity readings will drop below
30 percent at times Tuesday and Wednesday afternoons, especially
across the north.

There is some indication that Wednesday nights lows may need
to be lowered in the upcoming days due to dry air mass in place.
Did not lower them tonight due to the fact winds may return on
the backside of the high and clouds will be on the increase late.
Next system will move across the region later Thursday into
Friday. It is too early to determine if any of the thunderstorms
would become severe. High pressure then builds into the region
next Saturday.
&&

.AVIATION...for 12Z TAF Issuance
Issued at 435 AM CDT Sun Jun 4 2017

The main aviation forecast concerns with be the patchy dense fog
early today, and isolated to scattered thunderstorms late today
and this evening.
&&

.GRB WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

SYNOPSIS.......Skowronski
SHORT TERM.....Skowronski
LONG TERM......Eckberg
AVIATION.......Skowronski
Hazardous weather outlook, Jun 3, 11:21 PM CDT, 5 hours 36 minutes before
Hazardous Weather Outlook
National Weather Service Green Bay WI
1121 PM CDT Sat Jun 3 2017

WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-051100-
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Door-Marathon-Shawano-
Wood-Portage-Waupaca-Outagamie-Brown-Kewaunee-Waushara-Winnebago-
Calumet-Manitowoc-Southern Marinette County-
Southern Oconto County-
1121 PM CDT Sat Jun 3 2017

This Hazardous Weather Outlook is for north-central and northeast
Wisconsin.

.DAY ONE...Tonight

Isolated thunderstorms will end overnight. Additional severe
weather tonight is unlikely. Patchy dense fog is possible in
north-central Wisconsin toward daybreak.

.DAYS TWO THROUGH SEVEN...Sunday through Saturday

Thunderstorms are possible Sunday afternoon. Gusty winds and hail
will be possible with these storms. There remains uncertainty
concerning the exact atmospheric conditions that will be across
the area Sunday. Therefore, even though the present forecast is
for storms to remain below severe levels, it is possible the
severe risk may need to be upgraded with later forecasts. Anyone
planning to be outdoors on Sunday should closely monitor later
forecasts.

.SPOTTER INFORMATION STATEMENT...

Spotters are requested to report any damage from Saturday's
storms.

LMZ521-522-541>543-051100-
The Bay of Green Bay south of a line from Cedar River MI to Rock
Island Passage-Lake Michigan from Washington Island to Sheboygan-
1121 PM CDT Sat Jun 3 2017

This Hazardous Weather Outlook is for portions of northwest Lake
Michigan and the waters of Green Bay.

.DAY ONE...Tonight

Isolated thunderstorms will end overnight. Patchy fog could pose a
hazard to boaters.

.DAYS TWO THROUGH SEVEN...Sunday through Saturday

There is a chance of thunderstorms on Sunday, which would again
pose a hazard to boaters.

An abrupt wind shift to the northeast is likely to surge down the
lake and bay late Sunday afternoon or Sunday evening. Although the
exact timing is uncertain, it will likely pose a substantial
hazard to small craft when it occurs. Prior to the wind shift,
west winds of 10 to 15 knots are expected. Winds will abruptly
shift to the Northeast and could briefly gust to 30 knots
immediately after the wind shift, before settling back to 10 to 20
knots for the rest of the night. Anyone boating on the lake or bay
late Sunday or Sunday night should closely monitor weather
conditions and forecasts prior to heading out on the water.

Skowronski

In the hours before

Local storm report, Jun 3, 11:50 PM CDT, 5 hours 7 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
1150 PM CDT SAT JUN 03 2017

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

1130 PM     HEAVY RAIN       STURGEON BAY            44.83N 87.38W
06/03/2017  M1.19 INCH       DOOR               WI   TRAINED SPOTTER

&&

ECKBERG
Local storm report, Jun 4, 12:49 AM CDT, 4 hours 8 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE GREEN BAY WI
1249 AM CDT SUN JUN 04 2017

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

0430 PM     HAIL             ALVIN                   46.01N 88.81W
06/03/2017  M0.25 INCH       FOREST             WI   CO-OP OBSERVER

0615 PM     TSTM WND GST     MERRILL                 45.18N 89.68W
06/03/2017  M47.00 MPH       LINCOLN            WI   ASOS

0615 PM     HAIL             ABBOTSFORD              44.95N 90.32W
06/03/2017  M0.25 INCH       MARATHON           WI   PUBLIC

0615 PM     TSTM WND GST     AMBERG                  45.50N 88.00W
06/03/2017  E45.00 MPH       MARINETTE          WI   LAW ENFORCEMENT

            40 TO 50 MPH WIND GUSTS AT INTERSECTION OF HIGHWAY 141
            AND BARKER RD.

0635 PM     TSTM WND GST     ANIWA                   45.00N 89.21W
06/03/2017  E50.00 MPH       SHAWANO            WI   PUBLIC

            50-60 MPH WIND GUSTS

0655 PM     HAIL             CRIVITZ                 45.23N 88.01W
06/03/2017  M0.88 INCH       MARINETTE          WI   CO-OP OBSERVER

            40 MPH GUSTS

0700 PM     HAIL             CRIVITZ                 45.23N 88.01W
06/03/2017  M1.25 INCH       MARINETTE          WI   PUBLIC

            TIME ESTIMATED BY RADAR.

0720 PM     TSTM WND GST     CHAMBERS ISLAND         45.18N 87.35W
06/03/2017  M37.00 MPH       DOOR               WI   OTHER FEDERAL

0730 PM     TSTM WND DMG     CUSTER                  44.50N 89.41W
06/03/2017                   PORTAGE            WI   PUBLIC

            TREE BRANCHES DOWN

0733 PM     TSTM WND GST     CLINTONVILLE            44.61N 88.75W
06/03/2017  M60.00 MPH       WAUPACA            WI   PUBLIC

0737 PM     TSTM WND DMG     PESHTIGO                45.04N 87.75W
06/03/2017                   MARINETTE          WI   LAW ENFORCEMENT

            3-4 TREES DOWN IN PESHTIGO.

0748 PM     TSTM WND GST     CLINTONVILLE            44.61N 88.75W
06/03/2017  E70.00 MPH       WAUPACA            WI   TRAINED SPOTTER

0820 PM     TSTM WND GST     2 W HOWARD              44.56N 88.10W
06/03/2017  E50.00 MPH       BROWN              WI   TRAINED SPOTTER

            INTERSECTION OF COUNTY U AND SHADY LANE

0837 PM     TSTM WND DMG     5 S DE PERE             44.38N 88.05W
06/03/2017                   BROWN              WI   LAW ENFORCEMENT

            POWERLINES DOWN IN THE TOWN OF LAWRENCE.

0850 PM     TSTM WND DMG     NEW FRANKEN             44.53N 87.83W
06/03/2017                   BROWN              WI   LAW ENFORCEMENT

            POWERLINES DOWN. TIME ESTIMATED BASED ON RADAR.

0900 PM     LIGHTNING        ALLOUEZ                 44.46N 87.98W
06/03/2017                   BROWN              WI   BROADCAST MEDIA

            LIGHTNING SPLINTERED A TREE ON HILLTOP DRIVE.

1130 PM     HEAVY RAIN       STURGEON BAY            44.83N 87.38W
06/03/2017  M1.19 INCH       DOOR               WI   TRAINED SPOTTER

&&

ECKBERG
Special weather statement, Jun 4, 1:20 AM CDT, 3 hours 37 minutes before
Special Weather Statement
National Weather Service Green Bay WI
120 AM CDT SUN JUN 4 2017

WIZ011>013-040715-
Florence WI-Forest WI-Northern Marinette County WI-
120 AM CDT SUN JUN 4 2017

...ISOLATED STRONG THUNDERSTORM ACROSS NORTHERN FOREST COUNTY EARLY
THIS MORNING...

At 120 AM CDT, Doppler radar was tracking a strong thunderstorm near
Popple River, or 15 miles northeast of Crandon, moving east at 25
mph.

Winds to around 30 mph will be possible with this storm, along with
locally heavy rain and frequent lightning.

This strong thunderstorm will be near...
  Popple River around 125 AM CDT.
  Goodman around 210 AM CDT.
  Homestead around 215 AM CDT.

Other locations impacted by this storm include Cavour, Lasalle Falls,
Morgan Lake Campground, Newald, Armstrong Creek, Long Lake and Fence.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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.

&&

LAT...LON 4581 8813 4580 8811 4554 8838 4572 8887
      4590 8871
TIME...MOT...LOC 0618Z 283DEG 22KT 4577 8876

Eckberg
Special weather statement, Jun 4, 2:07 AM CDT, 2 hours 50 minutes before
Special Weather Statement
National Weather Service Green Bay WI
207 AM CDT Sun Jun 4 2017

WIZ005-010>013-018>021-030-031-035>037-045-041000-
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Marathon-Shawano-Wood-
Portage-Waupaca-Waushara-
207 AM CDT Sun Jun 4 2017

...PATCHY DENSE FOG DEVELOPING EARLY THIS MORNING ACROSS CENTRAL
AND NORTH-CENTRAL WISCONSIN...

Patchy dense fog, with visibilities of a quarter of a mile or less
and at times down to a few hundred feet were developing across
central and north-central Wisconsin early this morning. The dense
fog is expected to expand in areal coverage through sunrise.
Motorist traveling early this morning should be on the alert for
rapidly changing and poor visibilities in fog. If you encounter
fog, slow down and use your low beam headlights.

WIZ022-038>040-048>050-073-074-041000-
Door-Outagamie-Brown-Kewaunee-Winnebago-Calumet-Manitowoc-
Southern Marinette County-Southern Oconto County-
207 AM CDT Sun Jun 4 2017

...AREAS OF FOG EXPECTED TO DEVELOP ACROSS NORTHEAST WISCONSIN
EARLY THIS MORNING...

Areas of fog are expected to develop across northeast Wisconsin
early this morning. The fog may be locally dense in spots with
visibilities of a quarter of a mile or less. Motorist traveling
early this morning should be on the alert for rapidly changing and
poor visibilities in fog. If you encounter fog, slow down and use
your low beam headlights.

Eckberg
Special weather statement, Jun 4, 4:29 AM CDT, 28 minutes before
Special Weather Statement
National Weather Service Green Bay WI
429 AM CDT Sun Jun 4 2017

WIZ005-010>013-018-019-041030-
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-
429 AM CDT Sun Jun 4 2017

...PATCHY DENSE FOG CONTINUES EARLY THIS MORNING ACROSS NORTH-
CENTRAL AND FAR NORTHEAST WISCONSIN...

Patchy dense fog, with visibilities of a quarter of a mile or less
and at times down to a few hundred feet continued across portions
of north-central and far northeast Wisconsin early this morning.
The patchy dense fog will continue through sunrise, then burn off
by 8 am. Motorist traveling early this morning should be on the
alert for rapidly changing and poor visibilities due to fog. If
you encounter dense fog, slow down and use your low beam
headlights.

WIZ020>022-030-031-035>040-045-048>050-073-074-041030-
Menominee-Northern Oconto County-Door-Marathon-Shawano-Wood-
Portage-Waupaca-Outagamie-Brown-Kewaunee-Waushara-Winnebago-
Calumet-Manitowoc-Southern Marinette County-
Southern Oconto County-
429 AM CDT Sun Jun 4 2017

...PATCHY FOG CONTINUES ACROSS CENTRAL INTO NORTHEAST WISCONSIN
EARLY THIS MORNING...

Patchy Fog, with visibilities down to around a mile will continue
through sunrise, then quickly burn off by 8 am. Motorist traveling
early this morning should be on the alert for rapidly changing
and poor visibilities in fog. If you encounter fog, slow down and
use your low beam headlights.

Eckberg

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 3, 7:13 PM CDTSevere Thunderstorm WarningGRBMarinette, Menominee, Oconto, Shawano62 min
Jun 3, 7:15 PM CDTSevere Thunderstorm WarningGRBDoor60 min
Jun 3, 7:29 PM CDTSpecial Marine WarningGRB2 hr
Jun 3, 7:44 PM CDTSevere Thunderstorm WarningGRBOutagamie, Shawano, Waupaca61 min
Jun 3, 8:01 PM CDTSevere Thunderstorm WarningGRBBrown59 min
Jun 3, 8:36 PM CDTSpecial Weather StatementGRBCalumet, Kewaunee, Manitowoc39 min
Jun 3, 9:15 PM CDTSpecial Weather StatementGRBCalumet45 min
Jun 3, 9:35 PM CDTSpecial Marine WarningGRB55 min
Jun 4, 1:20 AM CDTSpecial Weather StatementGRBFlorence55 min
Jun 4, 9:31 AM CDTMarine Dense Fog AdvisoryGRB8 hr
Jun 4, 6:56 PM CDTSpecial Marine WarningGRB64 min

Nearby

Small Craft Advisories in Wisconsin, 2017Every small craft advisory 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.