Thursday, April26, 2018 L-36.com


Marine Weather and Tides
Suamico, 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 5:46AMSunset 7:52PM Thursday April 26, 2018 12:58 AM CDT (05:58 UTC) Moonrise 4:14PMMoonset 4:32AM Illumination 83% Phase: Waxing Gibbous; Moon at 11 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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LMZ522 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- 832 Pm Cdt Wed Apr 25 2018
Rest of tonight..S wind 5 to 10 kts. Waves 2 ft or less. Clear.
Thursday..SW wind 10 to 15 kts. Waves 2 ft or less. A chance of showers in the afternoon.
Thursday night..N wind 10 to 15 kts. Waves 2 ft or less. A chance of showers in the evening.
Friday..NW wind 5 to 10 kts veering ne early in the afternoon. Waves 1 to 3 ft. A chance of rain and snow showers.
LMZ522 Expires:201804261015;;037200 FZUS53 KGRB 260132 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 832 PM CDT Wed Apr 25 2018 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-261015-

7 Day Forecast for Marine Location Near Suamico village, WI
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location: 44.66, -87.95     debug


Area Discussion for - Green Bay, WI
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Fxus63 kgrb 260341
afdgrb
area forecast discussion
national weather service green bay wi
1041 pm cdt Wed apr 25 2018
updated aviation portion for 06z TAF issuance

Short term Tonight and Thursday
issued at 315 pm cdt Wed apr 25 2018
clear skies and light winds will allow temperatures
to fall into the 20s and 30s overnight, with the coldest
temperatures where there is snow cover. Clouds will increase
Thursday afternoon as a cold front approaches. There is not much
moisture available, so expect just scattered showers in the
afternoon. Temperatures will be well above normal.

Long term Thursday night through Wednesday
issued at 315 pm cdt Wed apr 25 2018
post-frontal rain shower activity, aided by a mid-upper level
trough, will be coming to an end across the area Thursday
evening. The cold air should trail the precip enough to limit most
mixing, but thermal profiles cool just enough that the precip
could end as a little snow, mainly over the north. No accumulation
is expected.

As the upper trough digs over the great lakes, another more potent
shortwave will approach the area within the northwest flow early
on Friday. The surface reflection of these features is a clipper-
like low pressure system. The area will also reside in a
favorable left front quad of a 100+ knot jet. These in combination
with steepening low and mid level will begin to spread precip
into the area. With low temps forecast to drop into the upper 20s
for much of north-central wi early Friday morning, if any precip
gets going that early, it could start off as a rain snow mix or
even all snow. As temps warm, precip should change to all rain
for most locations. However, concern is growing (especially across
central and northern wi) that thermal profiles are getting closer
and closer to an all snow scenario, at least during periods of
heavier precip. The NAM nest shows this scenario, with a band of
snow on the northern side of the surface low, bringing an inch or
two of snow. It is the end of april and the Sun angle is strong,
so will hope the "all snow" scenario doesn't play out. However,
did increase snow totals a little (mainly on grassy surfaces).

In addition to the snow threat, steep low-mid level lapse rates
(6-8 c km) will bring the chance for some thunder. Any convection
could produce small hail as wet-bulb zero heights remain low.

Brief gusty winds will also be possible with any of the stronger
showers or storms, especially across central and east central wi
where soundings still show an inverted v signature for a period
of time. Winds aloft are not too strong, so gusts between 30-40
mph would be expected. Will continue to highlight these threats in
the hwo.

Any lingering precip will end Friday evening as the shortwave and
upper trough exit the area. Then, models still advertising a
significant pattern change this weekend into next week. The strong
southwest flow will result in very warm temps with highs in the
70s expected early next week. The chances for showers and storms
will also be on the increase early next week, but timing is hard
to pin down at this point. This type of setup needs to be
monitored for possible heavy rain (additional flooding?) and
strong to possibly severe weather. Stay tuned!.

Aviation For 06z TAF issuance
issued at 1020 pm cdt Wed apr 25 2018
mostly clear skies and light winds are expected through midday
Thursday. An approaching cold front will bring increasing clouds
as well as the chance for showers and MVFR conditions across the
north and west Thursday afternoon and across the east Thursday
evening. A period of MVFR CIGS is expected behind the front as
winds turn northwesterly.

Grb watches warnings advisories
None.

Short term... ..Rdm
long term... ... Bersch
aviation... ... .Kurimski


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KWNW3 - 9087069- Kewaunee, WI 28 mi40 min WSW 1.9 G 2.9 38°F 1014.3 hPa
MN4 - 9087088 - Menominee, MI 36 mi40 min SSW 5.1 G 7 39°F 1014.4 hPa28°F

Wind History for Kewaunee MET, WI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Green Bay, Austin Straubel International Airport, WI16 mi65 minS 410.00 miFair39°F30°F73%1015.4 hPa

Wind History from GRB (wind in knots)
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Last 24hrN10N9N6N10N10N9N11N13N12N12N9
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N74NW8N9NW7W9W6S5S5SE8SE6S5S4
1 day agoN4NW3CalmCalmNW5CalmW3CalmCalmE3NE6NE75NE5NE6NE9NE13NE18NE20
G26
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NE16NE13N7
2 days agoNE3CalmCalmN3CalmN3CalmN3CalmW3CalmCalmNW35NE5E8NE6E6NE6NE5N3CalmCalmCalm

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 Green Bay, WI (1,6,7,8)
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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.