Thursday, August17, 2017 L-36.com


Marine Weather and Tides
Suamico, 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 5:57AMSunset 7:54PM Thursday August 17, 2017 6:36 AM CDT (11:36 UTC) Moonrise 1:26AMMoonset 4:40PM Illumination 23% Phase: Waning Crescent; Moon at 25 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- 319 Am Cdt Thu Aug 17 2017
.small craft should exercise caution from early this morning through this evening...
Today..S wind 10 to 20 kts. Waves 1 to 3 ft. Scattered showers and a slight chance of Thunderstorms.
Tonight..W wind 10 to 20 kts. Waves 1 to 3 ft. A chance of showers.
Friday..NW wind 15 to 25 kts decreasing to 10 to 15 kts early in the afternoon. Waves 1 to 3 ft. Mostly cloudy. A small craft advisory may be needed.
Friday night..W wind 5 to 10 kts. Waves 2 ft or less. Partly cloudy.
LMZ522 Expires:201708171700;;511551 FZUS53 KGRB 170819 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 319 AM CDT Thu Aug 17 2017 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-171700-

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 171039
afdgrb
area forecast discussion
national weather service green bay wi
539 am cdt Thu aug 17 2017
updated aviation portion for 12z TAF issuance

Short term Today... Tonight... And Friday
issued at 313 am cdt Thu aug 17 2017
convection trends today into this evening the focus of this
forecast period.

At 230 am, the leading band of showers with the 850 warm front
was lifting over northern wisconsin early this morning. Scattered
convection was noted over west central wisconsin as the upper low
continues drifts into the state from minnesota. This second area
of convection was also associated with the dry slot working into
northwest wisconsin and the lfq region of a weak upper jet.

Lightning data shows isolated storms near this dry slot as per
water vapor loop, but no other lightning data. The surface low
pressure center was over msp with a warm front extending into
southwest wisconsin and a cold front just to the west. With pwats
in the 1.50 to 2.00 range early this morning, there was some
potential for heavy rainfall, but the 35 kts LLJ was allowing a
quick storm movement, before the higher pwats shift to the east
toward daybreak. Expect isolated convection to become more
scattered today as the surface low and closed upper low track
across the state, especially along and ahead of the occluding
surface front. Mu capes expected to increase to around 1000 j kg
today before tapering off later afternoon after the frontal
passage. The threat of widespread severe weather is low but an
isolated severe storm is possible with the marginal capes along
with rotational shear with the upper system tracking over.

Light showers will continue to taper off from southwest to
northeast tonight as the upper system departs northeast of the
area. Progs do divert on the rate of departing light showers, but
do agree with a bit more clouds around Friday due to either the
slower system, more clouds with the next S W passing southwest of
the area, or a combination of both.

Long term Friday night through Wednesday
issued at 313 am cdt Thu aug 17 2017
a brief round of showers will be possible Saturday with a passing
shortwave. Additional thunderstorms will be possible as a low
pressure system passes Sunday evening to Tuesday morning before
dry conditions arrive ahead of the next 500 mb ridge.

A weak shortwave will move across central and southern wisconsin
Saturday morning. Models have consistently trended dry for
northeastern wisconsin, but wouldn't be surprised if a small
chance of showers moves towards the fox valley in the next couple
days. Following this, dry conditions will be in place until the
warm front moves in Sunday night.

The warm front will be the initial focal point for convection and
active weather Sunday night. Better chances for some stronger
thunderstorms are currently expected further west towards
minnesota. Upper level support appears weak at this time and
minimal low level jet is currently expected, so thunderstorm
strength is expected to be tied to diurnal heating, diminishing to
showers overnight into Monday. Rain chances will then continue
through most of Monday as a slow moving cold front moves through
the region, setting off another chance of showers and
thunderstorms for the area.

With these round of active weather through the area, drier
conditions move in Tuesday evening through the rest of next week
as northwesterly flow establishes itself and surface high pressure
builds in ahead of the next upper level ridge.

Temperatures will be above normal through the weekend before
settling closer to normal in the middle of next week.

Aviation For 12z TAF issuance
issued at 538 am cdt Thu aug 17 2017
a frontal system tracking over the area today will
produce scattered showers and isolated thunderstorms along with
widespread MVFR ifr ceilings. The ifr ceilings with patchy MVFR
vsbys due to fog will mainly be located across northern wisconsin.

The cyclonic flow will continue to produce a chance of showers
tonight, with mainly ifr ceilings across northern wisconsin and
mainly a lower end MVFR ceiling elsewhere.

Grb watches warnings advisories
Beach hazards statement through this evening for wiz022-040-050.

Short term... ..Tdh
long term... ... Uhlmann
aviation... ... .Tdh


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
45014 14 mi37 min SSE 12 G 14 72°F 71°F1004.7 hPa (-1.3)
KWNW3 - 9087069- Kewaunee, WI 28 mi49 min S 12 G 13 70°F 1004.9 hPa
MN4 - 9087088 - Menominee, MI 36 mi49 min SSE 15 G 19 71°F 1004.7 hPa71°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 mi44 minS 65.00 miLight Rain Fog/Mist72°F72°F100%1004.4 hPa

Wind History from GRB (wind in knots)
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Last 24hrNE5NE6NE9NE8E4NE9NE4NE5NE9NE10E7E8E7E6E8E5E5E5CalmCalmSE10SE7S6S6
1 day agoCalmNW5W4N7NE7N7CalmW4NW6NE8NE9NE6NE7NE5CalmCalmCalmCalmNE3NE4CalmCalmCalmE4
2 days agoCalmCalmCalmSW3CalmNW4S5S7SW4S4SW5CalmNE6NE4CalmNE3E3N5E6NE6E5NE5N5Calm

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 (7,2,3,4)
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Ground Weather Radar Station Green Bay, 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.