Sunday, July22, 2018 L-36.com


Marine Weather and Tides
Sheboygan, WI

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Sunrise 5:28AMSunset 8:25PM Sunday July 22, 2018 7:43 AM CDT (12:43 UTC) Moonrise 4:12PMMoonset 1:37AM Illumination 71% Phase: Waxing Gibbous; Moon at 9 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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LMZ669 Lake Michigan From Michigan City In To St. Joseph Mi 5 Nm Offshore To Mid Lake- Lake Michigan From Sheboygan To Port Washington Wi 5 Nm Offshore To Mid Lake- Lake Michigan From Port Washington To North Point Light Wi 5 Nm Offshore To Mid Lake- Lake Michigan From North Point Light To Wind Point Wi 5 Nm Offshore To Mid Lake- Lake Michigan From Wind Point Wi To Winthrop Harbor Il 5 Nm Offshore To Mid Lake- Lake Michigan From Winthrop Harbor To Wilmette Harbor Il 5 Nm Offshore To Mid Lake- Lake Michigan From Wilmette Harbor Il To Michigan City In 5 Nm Offshore To Mid Lake- Lake Michigan From Whitehall To Pentwater Mi 5 Nm Offshore To Mid Lake- Lake Michigan From Grand Haven To Whitehall Mi 5 Nm Offshore To Mid Lake- Lake Michigan From Holland To Grand Haven Mi 5 Nm Offshore To Mid Lake- Lake Michigan From South Haven To Holland Mi 5 Nm Offshore To Mid Lake- Lake Michigan From St. Joseph To South Haven Mi 5 Nm Offshore To Mid Lake- 258 Am Cdt Sun Jul 22 2018 Sheboygan Wi To Pentwater Mi South...
Today..Northeast winds 15 to 25 kt. Slight chance of waterspouts this morning. Scattered showers. Waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to 6 ft occasionally to 8 ft late.
Tonight..North winds 10 to 20 kt. Slight chance of showers. Waves 3 to 5 ft subsiding to 2 to 4 ft overnight.
Monday..North winds 10 to 15 kt. Waves 3 to 5 ft.
Monday night..Northwest winds 5 to 10 kt. Waves 1 to 3 ft.
Tuesday..North winds 5 to 10 kt. Waves 1 to 2 ft.
Tuesday night..Northwest winds 5 to 10 kt. Waves 1 ft or less.
Wednesday..Northwest winds 5 to 10 kt becoming west. Waves 1 ft or less.
Thursday..West winds 10 to 20 kt. Waves 1 to 3 ft.
LMZ669 Expires:201807221530;;863173 FZUS63 KLOT 220758 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Chicago/Romeoville IL 258 AM CDT Sun Jul 22 2018 FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON Lake Michigan. Waves are provided as a range of significant wave heights, which is the average of the highest 1/3 of the wave, along with the average height of the highest 10% of the waves which will occasionally be encountered. .SYNOPSIS...Low pressure of 29.7 inches over the upper Ohio Valley will linger today. A ridge of high pressure of 30.1 inches over the northern Plains and upper midwest will move across the western Great Lakes Monday and Monday night. Low pressure of 29.8 inches will across Ontario Tuesday night through Thursday while deepening to 29.6 inches. This low will send a cold front across the lake Wednesday night. High pressure will return next weekend. LMZ080-669-671-673-675-777-779-870-872-874-876-878-221530-

7 Day Forecast for Marine Location Near Sheboygan, WI
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location: 43.71, -87.19     debug


Area Discussion for - Milwaukee/Sullivan, WI
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Fxus63 kmkx 221113
afdmkx
area forecast discussion
national weather service milwaukee sullivan wi
613 am cdt Sun jul 22 2018

Discussion
Today into tonight... Forecast confidence is high...

looks like we will have another day stuck in the western
periphery of the stacked trough low with scattered showers and
extensive cloud cover for much of the day. Lift is pretty tame,
but just enough in the 600-500mb range to keep these random light
rain showers drizzle going across southern wisconsin. Looks like
there should be one last uptick in activity toward this afternoon
as another mid level shortwave trough propagates south along lake
michigan per the 22.06z rap nam. There does appear to be some weak
instability (~500j kg mucape) that develops this afternoon, so
can not completely rule out a stray thunderstorm though it should
stay fairly isolated. High temperatures could be a bit tricky as
they stayed in the low 70s under cloud cover yesterday but then
popped up into the low 80s where some Sun was able to peak out in
western wi. Went somewhere in-between in the mid 70s but could
get warmer if it clears out earlier than expected. Going into
tonight, there does appear to be some clearing that takes place as
the mid level trough flattens out and shifts eastward finally.

Monday through Wednesday - confidence... Medium
expecting a quiet period with main upper low to our east lifting
to the north with mid level flow taking on a more of a
west northwest look. In the low levels the flow will be largely
anticyclonic. A cool front draws closer Wednesday though remains
far enough to our northwest to keep the area dry for much of
Wednesday. Some small pops are in place for the far northwest cwa
during the afternoon. However this is low confidence with the
latest ECMWF showing a much slower solution with the proggd precip
much further northwest than the GFS by days end Wednesday. 925
temps nudge up into the low mid 20s celsius Wednesday ahead of
cold fropa.

Wednesday night - confidence... Medium
potent 500 millibar low is proggd to traverse will be traversing
towards the mn arrowhead with some vorticity trailing south with
mid upper level speed MAX impinging into the area on the southern
flank of the circulation. Surface 850 front in combo with some of
this upper support may set off a few showers storms.

Thursday through Saturday - confidence... Medium
broad northwest cyclonic flow will be across the area with low
level thermal troughing. Some vorticity maxima moving through may
combine with low level trough to generate some shra or tsra about
Friday. Temps drop back into the 70s for much of this period with
925 temps back into the teens celsius.

Aviation(12z tafs) A band of light rain drizzle has moved in
across southeast wisconsin which has helped to reinforce the ifr
to lifr ceilings. Widespread MVFR ceilings are occurring across
south central wisconsin with more of the 500-900ft CIGS in place
closer to lake michigan. These conditions are expected to persist
through about mid-morning before gradually improving into the
afternoon. Some scattered showers and an isolated thunderstorm are
expected today which could briefly bring visibilities down. Skies
are expected to clear out tonight and bring conditions back to
vfr.

Marine Small craft advisory runs through 5pm today due to the
high wave conditions. While winds are and will be slightly lower
today than what they were yesterday, the persistent fetch out of
the north- northeast will keep waves up in the 3-6ft range today.

Winds will continue to diminish into Monday and shift to the
northwest which will allow for the waves to gradually weaken. High
pressure is expected to move into the region and help to keep the
wave action down for much of next week.

Beaches Persistent north to northeast winds over lake michigan
have lead to some high waves of up to 6 feet along the wisconsin
coast line. While winds will not be as strong today, they will
remain out of the same direction and help to maintain the high
waves and dangerous swimming conditions. Winds should shift to the
northwest on Monday and lighten up and help to end the dangerous
swimming conditions.

Mkx watches warnings advisories
Wi... Beach hazards statement until 5 pm cdt this afternoon for wiz052-
060-066-071-072.

Lm... Small craft advisory until 5 pm cdt this afternoon for
lmz643>646.

Today tonight and aviation marine... Halbach
Monday through Saturday... Collar


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SGNW3 - Sheboygan, WI 27 mi43 min N 18 G 19 65°F 1012.2 hPa (+0.9)65°F
45024 38 mi33 min N 12 G 14 67°F 67°F2 ft1013.4 hPa66°F
PWAW3 - Port Washington, WI 42 mi63 min NNW 7 G 9.9 67°F 1013.2 hPa
LDTM4 - 9087023 - Ludington, MI 43 mi43 min NNE 6 G 8.9 67°F 65°F
BSBM4 - Big Sable Point, MI 43 mi63 min NNE 11 G 15 65°F 1012.9 hPa

Wind History for Ludington, MI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sheboygan County Memorial Airport, WI35 mi50 minN 79.00 miOvercast66°F64°F96%1012.5 hPa

Wind History from SBM (wind in knots)
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Last 24hrN6N7N13N11N8NW7N11N8
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1 day agoSE6S10S6SE8SE6SE11
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SE9SE9E6E10NE10NE11N4N6N4N8N10N6N7N7NE11N8N7
2 days agoCalmS7SE9S8SE11SE12SE8SE7SE8SE10SE6SE5SE5SE9SE9SE9SE10SE11
G18
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G22
SE12
G20
SE8SE6

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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wmap_A
GOES Local Image of GreatLakes    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Milwaukee/Sullivan, WI (8,2,3,4)
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Ground Weather Radar Station Green Bay, WI
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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.