Monday, September25, 2017 L-36.com


Marine Weather and Tides
Port Washington, 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 6:42AMSunset 6:43PM Monday September 25, 2017 1:57 PM CDT (18:57 UTC) Moonrise 12:00PMMoonset 10:04PM Illumination 26% Phase: Waxing Crescent; Moon at 5 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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LMZ644 Port Washington To North Point Light Wi- 105 Pm Cdt Mon Sep 25 2017
Rest of today..South wind 10 to 15 knots. Mostly Sunny. Waves 1 to 2 feet.
Tonight..Southeast wind 5 to 15 knots becoming 5 to 10 knots late in the evening, then veering south after midnight. Partly cloudy. Waves 1 to 2 feet.
Tuesday..Southwest wind 5 to 10 knots. Chance of showers and Thunderstorms in the afternoon. Waves around 1 foot.
Tuesday night..West wind 5 to 10 knots becoming northwest 10 to 15 knots with gusts to around 20 knots in the late evening and overnight. Slight chance of showers through around midnight. Waves around 1 foot.
LMZ644 Expires:201709252200;;919243 FZUS53 KMKX 251805 NSHMKX Nearshore Marine Forecast National Weather Service MILWAUKEE/SULLIVAN WI 105 PM CDT Mon Sep 25 2017 For waters within five nautical miles of shore on Lake Michigan LMZ644-252200-

7 Day Forecast for Marine Location Near Port Washington, WI
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location: 43.38, -87.88     debug


Area Discussion for - Milwaukee/Sullivan, WI
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Fxus63 kmkx 251653
afdmkx
area forecast discussion
national weather service milwaukee sullivan wi
1153 am cdt Mon sep 25 2017

Update
Aviation(18z tafs)
Vfr conditions will continue through the TAF period. Expect
scattered fair weather cumulus this afternoon. Conditions look
dry, with any showers or storms remaining west of madison through
12z Tuesday.

Prev discussion (issued 848 am cdt Mon sep 25 2017)
update...

marine...

winds and waves will remain below small craft advisory
levels through the week. A cold front will push through the region,
switching winds from southerly to northwest Tuesday afternoon
into the evening. That will also come with a chance of showers or
a thunderstorm.

Prev discussion... (issued 540 am cdt Mon sep 25 2017)
aviation(12z tafs)...

vfr conditions will continue through the TAF period. Conditions
look dry with any showers or storms remaining west of the taf
sites through 12z Tuesday. The chance for rain won't reach
southeast wisconsin until after 18z Tuesday.

Prev discussion... (issued 230 am cdt Mon sep 25 2017)
discussion...

today and tonight... Forecast confidence is high.

The main concern this period is when and whether we'll see some
showers possible storms push into our far western forecast area.

There is a weakening cold front approaching the area, but it stays
west of the ms river this afternoon. We still have a lot of
ridging aloft and the soundings show the potential for enhanced low
level drying due to mixing this afternoon. Will keep a token
slight chc pop across our far west late this afternoon in case
something sneaks in from the west, but it looks pretty dry. Things
don't get much better tonight with respect to precipitation
progression as the front doesn't really move that much. Thus, rain
chances will stay well wet of madison through the night. The focus
thus turns to Tuesday for precip chances. Look for another warm
day today, though a few degrees cooler than yesterday, still in
the hot category for late september.

Tuesday - confidence... Medium
one last day of abnormal warmth dew points as approaching cold
front likely to generate some shra tsra. MLCAPE values look to
be in the 500 to 1000 j kg. The main shortwave will have its
biggest forcing influence to our north though some weaker vort
activity is proggd across the area. Primary lifting mechanism
will be the surface 850 fronts swinging through. QPF progs
favoring the higher amounts further north in closer proximity to
surface low and positioning of better upper dynamics. 925 temps
will be in the 20-23c range ahead of the front and then some cool
advection starts taking pace during the afternoon in the wake of
the front and this looks to be more noticeable in the northwest
cwa.

Wednesday and Thursday - confidence... Medium
a much cooler and drier airmass will be in place with high
pressure ridging in from the plains. Low level thermal trough
with 925 temps down to a 7 or 8c off the NAM by 12z Thursday. This
is the coolest solution. A brief thermal ridge gets pulled back
into wi on Thursday ahead of another cold front. The cold front
will move into northern wi during the day Thursday and then will
slide through southern wi Thursday evening with a few shra
possible then.

Friday through Sunday - confidence... Medium
high pressure will dominate through the weekend with dry weather
expected. The high shifts to our east on Sunday with a weak return
flow setting up. Models show any precip would be off in the plains
with better WAA moist advection regime there.

Aviation(06z tafs)...VFR conditions will continue through the taf
period. Conditions look dry with any showers or storms remaining
west of the TAF sites through 12z Tuesday.

Marine... Winds and waves will remain below small craft advisory
levels through the week. A cold front will push through the region,
switching winds from southerly to northwest Tuesday afternoon
into the evening. That will also come with a chance of showers or
a thunderstorm.

Mkx watches warnings advisories
Wi... None.

Lm... None.

Update... Hentz
today tonight and aviation marine... Collar
Tuesday through Sunday... Davis


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PWAW3 - Port Washington, WI 1 mi77 min S 2.9 G 5.1 78°F 1016.3 hPa
45013 19 mi78 min SSE 5.8 G 7.8 69°F 62°F1015.4 hPa
MLWW3 - Milwaukee, WI 23 mi37 min SE 1 G 1.9 67°F
SGNW3 - Sheboygan, WI 27 mi57 min S 9.9 G 9.9 71°F 1014.7 hPa (-0.5)69°F

Wind History for Kewaunee MET, WI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
West Bend Municipal Airport, WI14 mi87 minSSE 510.00 mi88°F55°F33%1015.2 hPa
Milwaukee-Timmerman, WI20 mi72 minWSW 810.00 miClear90°F51°F27%1015.2 hPa

Wind History from ETB (wind in knots)
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Last 24hrS8
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SE8SE7SE9SE6SE3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSW7W3SW3S7
1 day agoS5SE7SE8SE4SE4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmS7S7S8
2 days agoS8SW9
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SW7S6SE5SE4CalmCalmCalmCalmCalmSW3CalmCalmCalmCalmCalmCalmCalmSW5W6W5W5SW5

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 (14,3,4,5)
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Ground Weather Radar Station Milwaukee, 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.