Sunday, September24, 2017 L-36.com


Marine Weather and Tides
Sheboygan, WI

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 6:40AMSunset 6:44PM Sunday September 24, 2017 3:47 AM CDT (08:47 UTC) Moonrise 11:00AMMoonset 9:25PM Illumination 14% Phase: Waxing Crescent; Moon at 4 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- 246 Am Cdt Sun Sep 24 2017 Sheboygan Wi To Pentwater Mi South...
Today..South winds 10 to 15 kt becoming southeast. Waves 1 to 2 ft.
Tonight..Southeast winds 10 to 15 kt becoming south. Waves 1 to 3 ft.
Monday..South winds 10 to 15 kt. Waves 1 to 2 ft.
Monday night..Southeast winds 5 to 10 kt becoming south. Waves 1 to 2 ft.
Tuesday..South winds 10 to 15 kt. Waves 1 ft or less.
Tuesday night..Southwest winds 10 to 20 kt veering to northwest 15 to 25 kt. Waves 1 to 2 ft building to 2 to 4 ft.
Wednesday..Northwest winds 15 to 25 kt. Waves 3 to 5 ft.
Thursday..North winds 10 to 20 kt becoming northwest. Waves 2 to 4 ft.
LMZ669 Expires:201709241530;;848842 FZUS63 KLOT 240746 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Chicago/Romeoville IL 246 AM CDT Sun Sep 24 2017 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...High pressure of 30.2 inches centered south of Lake Erie will move little through the remainder of the weekend then gradually weaken early in the week. Low pressure around 29.6 inches is expected to develop across the Great Lakes region on Tuesday night and move northeast and deepen through midweek, with an associated cold front passing across the lake early Wednesday. LMZ080-669-671-673-675-777-779-870-872-874-876-878-241530-

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 240735
afdmkx
area forecast discussion
national weather service milwaukee sullivan wi
235 am cdt Sun sep 24 2017

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

Look for another day of hot weather across southern wisconsin as
we remain under the western periphery of a massive upper level
ridge. High temp records are at risk of being broken again this
afternoon. Madison's record is 88, milwaukee's is 92.

Monday and Monday night - confidence... Medium
another unseasonably warm day is in the works. Still looking at
582dm plus heights with lingering anticyclonic curvature around
the mid level ridge slowly shifting to our east. 925 temps will
still be around 23 24c so mid upper 80s expected. Frontal boundary
draws closer and progs graze the far western CWA with some QPF so
have some pops in place there during the afternoon. Not much
movement of the boundary expected Monday night so pops will remain
confined to the far western cwa.

Tuesday and Tuesday night - confidence... Medium
mid level flow flattens with energy traversing northeast from the
northern plains. This keeps better DCVA well to our north though
some weaker vort action expected to move through. Low pressure
passing to our north will drag a cold front through southern wi
during the afternoon and early evening. Severe parameters look
weak though enough CAPE noted in both the NAM and GFS soundings to
support mention of thunder. QPF not real impressive with the gem
actually keeping QPF to our north. GFS and ECMWF also focusing
better precip amounts across northern wi. This will be the last
day of the unseasonable warmth as 925 temps will still be in the
low 20s ahead of the front. Front will enter the northwest cwa
early afternoon so more clouds and earlier FROPA will likely
result in cooler temps there. But most other areas should see a
better rise with longer duration of pre-frontal warmth.

Wednesday - confidence... Medium
cooler, drier and more seasonable airmass will be in place. 925
temps down to 10-13c with post frontal northwest winds bringing in
the much cooler air. High pressure will be building in from the
plains.

Thursday through Saturday - confidence... Low to medium
not too much in the way of rain chances with the ECMWF the only
model generating shra activity with a stronger upper air low that
spins up across the great lakes. The GFS and gem are much weaker
with a rather progressive open wave. At the moment the ecmwf
solution is the outlier so not getting hopes up for the much
needed rainfall for the drier areas of the cwa. Expecting a
thermal ridge on Thursday Thursday evening ahead of the front
dropping in from the north. ECMWF being the stronger solution has
925 temps dropping down into the single digits later Friday into
Saturday.

Aviation(06z tafs) Vfr conditions will continue through the taf
period. There is potential for patchy valley fog across the area
early this morning and again early Monday morning.

Marine Lake breezes are expected each afternoon today and again
Monday with light sly winds during the night and morning hours.

Wave heights will remain low.

Mkx watches warnings advisories
Wi... None.

Lm... None.

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SGNW3 - Sheboygan, WI 27 mi47 min SSW 6 G 6 72°F 1018 hPa (+0.3)67°F
45024 38 mi27 min SSE 3.9 G 3.9 72°F 69°F1 ft1019 hPa68°F
PWAW3 - Port Washington, WI 42 mi67 min Calm G 1.9 70°F 1019.3 hPa
LDTM4 - 9087023 - Ludington, MI 43 mi47 min E 4.1 G 5.1 69°F 64°F
BSBM4 - Big Sable Point, MI 43 mi67 min SE 7 G 9.9 78°F 1019.6 hPa

Wind History for Ludington, MI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sheboygan County Memorial Airport, WI35 mi54 minN 05.00 miFog/Mist64°F64°F100%1018.2 hPa

Wind History from SBM (wind in knots)
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Last 24hrSW5S4CalmCalmCalmS5SW5S5SW5SW4S7SE9S10S8S6S5CalmSW3CalmCalmCalmCalmCalmCalm
1 day agoS3S3S4SW5S3S5SW6SW6S12SW11SE6S9S12S8S8SE3E4NE4CalmCalmCalmCalmCalmS5
2 days agoN4E3CalmCalm3CalmNE4NE3E7SE6SE7S5E8E4S4SE5SE3CalmCalmCalmCalmCalmCalmSW3

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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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of GreatLakes    EDIT
Geos

Wind Forecast for Milwaukee/Sullivan, WI (4,6,7,8)
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Ground Weather Radar Station Green Bay, WI
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weather_mapweather_map weather_map

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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.