Thursday, April27, 2017 L-36.com


Marine Weather and Tides
Neenah, WI

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 5:47AMSunset 7:55PM Thursday April 27, 2017 9:36 PM CDT (02:36 UTC) Moonrise 7:00AMMoonset 9:28PM Illumination 4% Phase: Waxing Crescent; Moon at 2 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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LMZ543 Green Bay South Of Line From Cedar River To Rock Island Passage And North Of A Line From Oconto Wi To Little Sturgeon Bay Wi- Green Bay South Of Line From Oconto Wi To Little Sturgeon Bay Wi- Rock Island Passage To Sturgeon Bay Wi- Sturgeon Bay To Two Rivers Wi-two Rivers To Sheboygan Wi- 920 Pm Cdt Thu Apr 27 2017
Rest of tonight..SW wind 10 to 15 kts. Waves 1 to 3 ft. Cloudy.
Friday..SW wind 10 to 15 kts. Waves 1 to 3 ft. Partly Sunny.
Friday night..NW wind 5 to 10 kts veering N 10 to 15 kts in the late evening and overnight. Waves 2 ft or less. Mostly cloudy in the evening then becoming partly cloudy.
Saturday..NE wind 10 to 15 kts. Waves 1 to 3 ft. Partly Sunny.
LMZ543 Expires:201704281015;;374663 FZUS53 KGRB 280220 NSHGRB NEARSHORE MARINE FORECAST NATIONAL WEATHER SERVICE GREEN BAY WI 920 PM CDT THU APR 27 2017 FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN LMZ521-522-541>543-281015-

7 Day Forecast for Marine Location Near Neenah, WI
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location: 44.18, -88.48     debug


Area Discussion for - Green Bay, WI
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Fxus63 kgrb 272348
afdgrb
area forecast discussion
national weather service green bay wi
648 pm cdt Thu apr 27 2017
updated aviation portion for 00z TAF issuance

Update
Issued at 359 pm cdt Thu apr 27 2017
snow continues to taper off over the northwoods, so will let the
advisory expire at 4 pm.

Short term Tonight and Friday
issued at 248 pm cdt Thu apr 27 2017
colder air wrapping into the departing system continues to turn the
mix to mainly snow with the exception of eastern wisconsin. Web
cams showing some locations with several inches of snow. System is
winding down fairly quick from southwest to northeast but may
need to extend the advisory for another hour across the north due
to reports of moderate snow yet.

Next forecast issue is the rate of clouds departing overnight.

Satellite imagery shows plenty of clouds across the region, so
will extend the period of clouds overnight longer. With the
extensive clouds and mixing from winds, most areas should not
expect temperatures to plummet, even with the fresh snow cover.

For Friday, progs continue to lift the next system into southern
wisconsin in the afternoon. While precipitation will overall stay
south, what clearing that does occur with the departing system
late tonight into Friday morning is trending to be shorter lived
due to the next system.

Long term Friday night through Thursday
issued at 248 pm cdt Thu apr 27 2017
500mb trough across the western united states is expected to
deepen over the first half of the weekend, then slowly eject
northeast out of the four corners region Sunday into Monday.

The upper low is forecast to be across the western great
lakes region Monday afternoon into Monday night, then fill
as it heads northeast into canada Tuesday. This system
will bring another potentially locally heavy rain event
to some areas of the upper midwest. By the end of the week,
500mb ridge is expected to build into the central united
states as another 500mb low deepens across the eastern
great lakes.

For Friday night, models continue to show system passing
to the south of the area. East-central wisconsin will
be on the northern fringe of this system, thus continue
to have chances of rain mainly south of green bay.

Any chances of rain should end around midnight along
the lakeshore as the system moves east of the area.

Next system will begin to move towards the area Saturday
afternoon. With system well to the south of the area and
a 1035mb high across eastern canada, concerned that models
are too quick in bringing rain back into our far southern
counties late Saturday afternoon. Was thinking rain will
move back into our southern counties during the mid to late
evening on Saturday. Even later Saturday night, there is concern
if precipitation would make it into far northern wisconsin with
easterly flow. Precipitation should arrive across northern
wisconsin by mid to late morning, thus the chances of snow
are diminished. Rain will continue at times through Monday
night. It may be mixed with snow at times late Sunday night/Monday
morning and Monday night into Tuesday morning.

High pressure builds into the region Wednesday and Thursday,
bringing dry conditions and temperatures closer to normal.

Aviation For 00z TAF issuance
issued at 641 pm cdt Thu apr 27 2017
isolated rain/snow showers should end early this evening, but
MVFR ceilings are expected to prevail well into the night. There
is some question about the timing of clearing across the southern
part of the forecast area, and whether or not it will clear at
all over the north. Will mention partial clearing late tonight,
except at the rhi TAF site, but this may need to be adjusted.

Regardless, expect conditions to improve toVFR as ceilings rise
Friday morning.

Grb watches/warnings/advisories
None.

Update... ... ... Kieckbusch
short term... ..Tdh
long term... ... Eckberg
aviation... ... .Kieckbusch


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SGNW3 - Sheboygan, WI 51 mi96 min WSW 7 G 8 42°F 1005.1 hPa (+1.9)38°F
KWNW3 - 9087069- Kewaunee, WI 56 mi48 min SW 5.1 G 8.9 42°F 1004.7 hPa

Wind History for Kewaunee MET, WI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Appleton-Outagamie, WI6 mi51 minW 137.00 miLight Drizzle37°F33°F87%1004.7 hPa
Wittman Regional Airport, WI13 mi43 minVar 510.00 miOvercast40°F35°F83%1006 hPa

Wind History from ATW (wind in knots)
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Last 24hrW11W9W9W6NW5W6W4NW8NW7NW10N12NW12W15W15W15W18
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1 day agoSE7SE7SE10
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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 GreatLakes    EDIT
Geos

Wind Forecast for Green Bay, WI (22,6,7,8)
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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.