Friday, April20, 2018 L-36.com


Marine Weather and Tides
Sheboygan Falls, WI

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
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.

Sunrise 5:56AMSunset 7:42PM Friday April 20, 2018 10:49 PM CDT (03:49 UTC) Moonrise 9:36AMMoonset 12:00AM Illumination 32% Phase: Waxing Crescent; Moon at 6 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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LMZ643 Sheboygan To Port Washington Wi- 905 Pm Cdt Fri Apr 20 2018
Rest of tonight..Southwest wind 5 knots veering west after midnight, then backing southwest early in the morning. Partly cloudy late in the evening then becoming mostly cloudy. Waves nearly calm.
Saturday..South wind 5 knots rising to 5 to 10 knots late in the morning, then becoming south 5 to 10 knots in the afternoon. Mostly cloudy. Waves around 1 foot.
Saturday night..South wind 5 to 10 knots becoming northwest after midnight, then becoming north early in the morning. Mostly clear. Waves around 1 foot.
Sunday..Northeast wind 5 to 10 knots veering east late in the morning, then becoming east 5 to 10 knots in the afternoon. Sunny. Waves nearly calm.
LMZ643 Expires:201804211000;;260394 FZUS53 KMKX 210205 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 905 PM CDT Fri Apr 20 2018 For waters within five nautical miles of shore on Lake Michigan LMZ643-211000-

7 Day Forecast for Marine Location Near Sheboygan Falls, WI
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location: 43.73, -87.83     debug


Area Discussion for - Milwaukee/Sullivan, WI
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Fxus63 kmkx 210240
afdmkx
area forecast discussion
national weather service milwaukee sullivan wi
940 pm cdt Fri apr 20 2018

Update Upstream mid-high clouds poised to push across southern
wi during the overnight hours. Weak isentropic upglide and lift
from passing right entrance region of upper jet may be able to
squeeze out isolated light showers or sprinkles over western and
southern CWA late tonight and Saturday morning. However forecast
soundings remain fairly dry through 5k feet. For now, wl hold off
on introducing any precip. However clouds expected most of the day
so wl not be quite as nice a day as today.

Marine Light and variable winds are expected becoming light
onshore most areas again on Saturday. Wind speeds will remain
light, mostly less than 15 knots, through early next week.

Prev discussion (issued 638 pm cdt Fri apr 20 2018)
update... No changes at this time to ongoing forecast.

Aviation(00z tafs)...VFR conditions expected for this forecast
period. Southern wisconsin will experience a thickening cloud
cover during the night due to upstream mid-level moisture
spreading eastward into the region. This increase in moisture will
be associated with organizing plains low pressure. Moisture
increases to above 5k feet as condensation pressure deficits on
295 theta surface decrease to less than 10mb over southern wi by
15z Saturday. Although isentropic omega remains weak, however
passing right entrance region of upper jet may add some synoptic
scale lift. May need to add some sprinkles or schc for
-shra as some mesoscale models showing light returns from
mid-level clouds falling over western CWA late tonight into the
morning, but wl hold off for now.

Prev discussion... (issued 210 pm cdt Fri apr 20 2018)
short term...

tonight through Monday... Forecast confidence is high:
high pressure centered over the western great lakes Friday night will
move slowly eastward over the weekend and into Monday, with the
west end of the ridge remaining across southern wisconsin.

This high will bring dry weather to the forecast area through
this period. Temperatures will finally warm back to around normal.

However east winds off lake michigan will bring cooling to east
areas.

We may see a band of altocumulus across mainly southwest areas
late tonight and Saturday morning. Most of the area will likely
see some cirrus tonight due to and exiting upper jet over the
great lakes tonight, and an upper low moving across kansas and
oklahoma before reaching the southeast u.S.

Long term...

Tuesday through Friday... Forecast confidence is medium:
the GFS shows a strong upper trough moving across wisconsin
Tuesday night and cutting off over illinois Wednesday. The ecmwf
is faster, weaker, and farther north.

A surface trough and an associated cold front will move through
later Tuesday afternoon into Wednesday. This may bring some
showers to southern wisconsin. However the ECMWF is much drier.

Should see the milder temperatures continue Tuesday ahead of the
cold front, with temperatures falling back to around or a little
below normal Wednesday behind the departing low front.

A moderating trend in temperatures is expected Thursday, along
with a chance of showers. Colder air is expected Friday.

Aviation(18z tafs)...

vfr conditions. For most of the area, winds will be somewhat
variable, should mainly be easterly near lake michigan (including
kmke and kenw), where a very weak lake breeze will occurring into
the early evening.

Marine...

high pressure centered near lake michigan. Light winds and
minimal wave action is expected across the nearshore waters into
at least the first half of next week.

Mkx watches warnings advisories
Wi... None.

Lm... None.

Update... mbk
tonight Saturday and aviation marine... mbk
Saturday night through Friday... Hentz


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SGNW3 - Sheboygan, WI 7 mi49 min SW 2.9 G 4.1 43°F 1031.5 hPa (+0.6)22°F
PWAW3 - Port Washington, WI 24 mi69 min W 1.9 G 1.9 38°F 1031.8 hPa
MLWW3 - Milwaukee, WI 47 mi39 min Calm G 1 41°F

Wind History for Kewaunee MET, WI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sheboygan County Memorial Airport, WI4 mi56 minN 010.00 miFair38°F27°F65%1031.6 hPa

Wind History from SBM (wind in knots)
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Last 24hrW6NW6NW6CalmCalmCalmCalmCalmW3SW3CalmS6S9S8S6S7SE6S6S6SE4S5S5SW5Calm
1 day agoN12
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2 days agoCalmN45N4N6N6CalmN3NE6NE7NE14NE14NE16NE11NE18NE17
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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 (23,6,7,8)
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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.