Thursday, October19, 2017 L-36.com


Marine Weather and Tides
Madison, 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 7:16AMSunset 6:08PM Thursday October 19, 2017 9:18 AM CDT (14:18 UTC) Moonrise 6:54AMMoonset 6:31PM Illumination 1% Phase: New Moon; Moon at 29 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- 905 Am Cdt Thu Oct 19 2017
Rest of today..West wind 5 to 10 knots backing south late in the afternoon. Sunny. Waves around 1 foot.
Tonight..South wind 5 to 10 knots. Clear. Waves around 1 foot.
Friday..South wind 10 to 15 knots becoming south 10 to 15 knots with gusts to around 20 knots late in the afternoon. Sunny. Waves 1 to 2 feet building to 2 to 4 feet late in the afternoon.
Friday night..South wind 10 to 15 knots. Gusts up to 20 knots. Partly cloudy. Waves 2 to 4 feet.
LMZ644 Expires:201710192200;;090750 FZUS53 KMKX 191405 NSHMKX Nearshore Marine Forecast National Weather Service MILWAUKEE/SULLIVAN WI 905 AM CDT Thu Oct 19 2017 For waters within five nautical miles of shore on Lake Michigan LMZ644-192200-

7 Day Forecast for Marine Location Near Madison, WI
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location: 43.09, -89.43     debug


Area Discussion for - Milwaukee/Sullivan, WI
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Fxus63 kmkx 191402
afdmkx
area forecast discussion
national weather service milwaukee sullivan wi
902 am cdt Thu oct 19 2017

Update Ongoing forecast is on track. No changes needed at this
time.

Pc

Marine Southerly winds will be on the increase Friday through
Saturday night ahead of an approaching cold front. So the expected
winds and resultant wave heights will likely necessitate the
issuance of a small craft advisory for the weekend.

Pc

Prev discussion (issued 559 am cdt Thu oct 19 2017)
update... The forecast is on track for today and tonight.

Aviation(12z tafs)...VFR conditions today through Friday.

Prev discussion... (issued 319 am cdt Thu oct 19 2017)
short term...

today and tonight... Forecast confidence is high.

A weak cold front is currently moving through far ERN wi. A ridge
of high pressure will follow the front and shift ewd across srn
wi and il today. Despite the cold advection early this morning,
temps will rebound to around 70 degrees once again. The lighter
winds today will allow a lake breeze to develop this afternoon.

Sly winds and weak warm advection will then return tonight.

Long term...

Friday... Forecast confidence is high:
high pressure will bring another very pleasant day to southern
wisconsin on Friday. Bumped temps up above model consensus once
again as model surface temps still aren't reflective of the very
mild airmass aloft.

Saturday and Sunday... Forecast confidence is medium to high:
low pressure and an associated cold front will approach the area
on Saturday, with models in fair agreement in the trough front
passage late Saturday night into Sunday. This is a bit slower than
models were showing 24 hours ago. Pretty good surge of moisture
ahead of this system, with model precipitable water values rising
to around 1.50 inches. Decent forcing with this system too, so
still feel good with likely precip chances.

Given the slower progression of the system, there is increasing
confidence in a dry day Saturday. This will also result in less
clouds and milder temps, so bumped high temps up a bit. Temps get
a bit tricky Sunday, depending on the exact timing of the frontal
passage. Higher confidence in 60s in the east where the front
arrive the latest. Could be stuck in the 50s much of the day west
once the front gets through.

Monday through Wednesday... Forecast confidence is medium:
models are still struggling to come into agreement with finer
details of the pattern for early next week. A potent trough will
approach during the day Monday, then slow down and nearly stall as
it transitions into a closed mid upper level low.

Timing strength placement of resultant surface low development is
the biggest issue. Though models all have on and off rain chances
through this period, the differences between them impact
temperatures and precip amounts. Overall though, looks like a
cooler and wet first half of the week.

Aviation(09z tafs)...VFR conditions today through Friday.

Marine... Light wly winds will give way to ssely winds via a lake
breeze this afternoon. Modest sly winds will then develop for fri
but will become breezy and gusty for Sat into Sun am. High waves
will develop especially north of port washington. Thus a small
craft advisory will likely be needed for the weekend.

Mkx watches warnings advisories
Wi... None.

Lm... None.

Today tonight and aviation marine... Gehring
Friday through Wednesday... Ddv


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MLWW3 - Milwaukee, WI 82 mi28 min WNW 4.1 G 6 55°F
PWAW3 - Port Washington, WI 85 mi38 min W 4.1 G 6 54°F 1021 hPa
KNSW3 - Kenosha, WI 93 mi78 min W 8 G 9.9 54°F 1020 hPa (+2.4)

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Middleton Muni - Morey Field, WI6 mi43 minN 010.00 miFair46°F40°F80%1021 hPa
Madison, Dane County Regional-Truax Field, WI6 mi25 minN 010.00 miMostly Cloudy50°F41°F71%1020.9 hPa

Wind History from C29 (wind in knots)
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Last 24hrS13S11
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SW9SW7SW6SW10
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W8W6NW4CalmCalmW3CalmCalmCalm
1 day agoSW9
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S7SW8SW5SW7SW6SW4CalmSW8S8S8S8S8S9S7S8
2 days agoW5W3CalmW8SW5W10W10
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SW10SW7SW4SW4SW5SW5SW5SW6SW6SW10SW11
G16
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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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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Midwest    EDIT
Geos

Wind Forecast for Milwaukee/Sullivan, WI (10,2,3,4)
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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.