Friday, November16, 2018

Marine Weather and Tides
Athens, WI

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:57AMSunset 4:29PM Friday November 16, 2018 9:34 AM CST (15:34 UTC) Moonrise 1:47PMMoonset 12:00AM Illumination 61% Phase: Waxing Gibbous; Moon at 8 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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7 Day Forecast for Marine Location Near Athens, WI
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location: 45.09, -90.06     debug

Area Discussion for - Green Bay, WI
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Fxus63 kgrb 161357
area forecast discussion
national weather service green bay wi
757 am cst Fri nov 16 2018
new information added to update section

Issued at 755 am cst Fri nov 16 2018
added a chance of drizzle freezing drizzle this morning, due to
observations and upstream reports. Moisture should continue to
shallow out due to subsidence, so this should only last for a few

Short term Today... Tonight... And Saturday
issued at 358 am cst Fri nov 16 2018
the main forecast concerns in the short-term forecast is the
potential for light lake effect snow north-central along with light
snow accumulation tonight into early Saturday morning across mainly
the south half of the area.

Today: the cold front and low pressure system that brought the light
snow across much of the area will continue to shift off to the east
throughout the day. There may be a few slippery spots on elevated
and untreated roadways early in the morning; however, this will
steadily improve by mid morning as temperatures warm to near and
above freezing for most locations. Some lake effect snow snow
showers will continue across north-central wi as winds become
northwesterly and 850mb temperatures drop to around -10c to -12c by
mid afternoon. Inversion heights are only expected to be around 3-
4kft, with only a very small portion of the moisture reaching into
the dgz. This, along with little to no added large scales support,
will lead to only light snow showers. Generally only expecting an
inch or two of accumulation across far northwestern vilas county by
late this afternoon, especially with the lower snow to liquid
ratios. Highs will be in the 30s today across most locations,
warmest over the eastern cwa.

Tonight: attention then turns to the next clipper system that is
expected to slide from the northern plains this evening to roughly
northern illinois tonight. The northern side of this clipper system
will be the main focus for some heavier precipitation. This is the
location that has a bit stronger fgen band that is expected to
slowly wash out as it slides through the area. Current thinking is
that the southern tier of of counties from around wood county
southeast to manitowoc county would have the best chance of seeing 1
to 3 inches of snow from late Friday evening through early Saturday
morning. Areas to the north of those counties would likely see an
inch or less, with the lowest totals expected along the u.P. Wi
border. The exception may be over vilas county where some lake
effect enhancement may lead to a couple inches over the northwest
part of the county. Impacts may be limited as it is overnight and on
a weekend; however, some people may have travel plans that begin
Friday night for the thanksgiving holiday. This may lead to the need
for a headline for at least our southern tier of counties late
tonight into Saturday morning. At this point will defer to the day
shift to issue to limit any confusion with this morning's light snow
and slippery roads.

Saturday: the aforementioned clipper system will weaken and shift
off to the east of the area Saturday morning. As this happens, a
broad area of high pressure will approach from the west and lead to
improving conditions throughout the day. Dry air will also begin to
filter in from the west, leading to decreasing cloud cover from the
west during the afternoon. Temperatures will be chilly with highs
only reaching into the low to mid 20s northwest to low 30s southeast.

Long term Saturday night through Thursday
issued at 358 am cst Fri nov 16 2018
main concerns during this part of the forecast are chances for
precipitation late in the weekend through the middle of next week.

Much below normal temperatures are expected to persist through the
early part of next week as northwest flow aloft continues to
prevail. Upper flow is then expected to back and become a bit
more zonal starting around the middle of the week. This should
bring near, or slightly above, normal temperatures to the area for
Wednesday through thanksgiving.

Models start showing differences by the start of the upcoming work
week. The GFS has more widespread QPF in the vicinity of a
passing cold front on Monday than either the ECMWF or canadian.

Using a blend of model solutions gives a chance for snow showers
to north-central wisconsin late Sunday night and to most of the
area Monday morning before snow chances decrease starting Monday
afternoon. Lake effect snow showers remain possible in north-
central wisconsin through Monday night due to favorable wind
direction and cold cyclonic flow. Even the northern part of the
forecast area looks to be dry by Tuesday afternoon. Surface high
pressure is then expected to keep the area mainly dry through

Expect high temperatures mostly in the 20s Sunday through Tuesday.

Wednesday's highs will top out in the 30s across the area and
highs on thanksgiving are forecast to be in the upper 30s to
lower 40s.

Aviation For 12z TAF issuance
issued at 541 am cst Fri nov 16 2018
lower clouds in the MVFR ifr range are expected across
the western TAF sites through most of this TAF period. The eastern
taf sites will likely benefit from downsloping westerly winds
today, allowing them to remain in theVFR MVFR range. Another
system will slide through the area tonight bringing widespread
light snow to much of the area. This will cause reduced visibility
at east of the TAF sites, especially after midnight into early
Saturday morning.

Grb watches warnings advisories

Update... ... ... Kieckbusch
short term... ..Cooley
long term... ... Mg
aviation... ... .Cooley

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Taylor County Airport, WI13 mi40 minno data10.00 miOvercast28°F25°F90%1010.5 hPa
Merrill, Merrill Municipal Airport, WI20 mi40 minNW 10 G 1910.00 miOvercast32°F28°F89%1010.2 hPa

Wind History from MDZ (wind in knots)
Last 24hr------------------------------------------------
1 day ago------------------------------------------------
2 days ago------------------------------------------------

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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GOES Local Image of    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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Green Bay, WI (10,2,3,4)
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Ground Weather Radar Station Green Bay, WI
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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 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 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.