Sunday, August18, 2019 L-36.com


Marine Weather and Tides
Green Bay, WI

Version 3.4
NOTICE
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 5:56AMSunset 7:55PM Sunday August 18, 2019 4:11 PM CDT (21:11 UTC) Moonrise 9:41PMMoonset 8:47AM Illumination 89% Phase: Waning Gibbous; Moon at 18 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 Expires:201908190445;;845968 Fzus53 Kgrb 182009 Nshgrb Nearshore Marine Forecast National Weather Service Green Bay Wi 309 Pm Cdt Sun Aug 18 2019 For Waters Within Five Nautical Miles Of Shore On Lake Michigan Lmz521-522-190445- 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- 309 Pm Cdt Sun Aug 18 2019
.small craft advisory in effect until 6 pm cdt this evening...
Late this afternoon..SW wind 10 to 20 kts. Waves 2 to 4 ft. A chance of showers and a slight chance of Thunderstorms.
Tonight..NW wind 10 to 15 kts. Waves 2 ft or less. A slight chance of showers in the evening.
Monday..W wind 5 to 10 kts backing S in the late morning and afternoon. Waves 2 ft or less. Sunny.
Monday night..SW wind 5 to 10 kts. Waves 2 ft or less. Clear.
Tuesday..SW wind 5 to 10 kts. Waves 2 ft or less. Mostly Sunny in the morning then becoming partly cloudy.
LMZ522


7 Day Forecast for Marine Location Near Green Bay, WI
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location: 44.52, -87.98     debug


Area Discussion for - Green Bay, WI
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Fxus63 kgrb 181923
afdgrb
area forecast discussion
national weather service green bay wi
223 pm cdt Sun aug 18 2019
forecast discussion for routine afternoon forecast issuance

Short term Tonight and Monday
issued at 222 pm cdt Sun aug 18 2019
a few light showers continued across the north early this
afternoon, otherwise it was breezy to windy across the
area. Under cloudy skies, temperatures were in the middle 60s
to middle 70s.

Will continue the chances of showers and a few thunderstorms
for the remainder of the afternoon into early this evening.

If storms do form, they could be strong with gusty winds to
40 mph, small hail and brief heavy rain. Skies will become
mostly clear this evening with patchy fog developing after
midnight. It will be much cooler and less humid with lows in
the middle to upper 40s north and in the lower to middle 50s
south.

Any fog will burn off by 9 am on Monday. Sunny skies are
should prevail with highs in the upper 70s and lower 80s
away from lake michigan.

Long term Monday night through Sunday
issued at 222 pm cdt Sun aug 18 2019
a surface-based cold front will sweep into northeast wi later on
Tuesday and bring a chance for showers and thunderstorms with it.

An upper level shortwave trough will also sweep across the upper
great lakes, but latest model runs have diverged considerably from
previous timing and amplification of said trough. If current model
trends hold true, the potential for severe weather Tuesday has
lessened. Regardless of upper trough timing, a canadian air mass
will follow in behind the cold front for Wednesday. Cooler than
normal temperatures and dry conditions should then prevail in
northeast wi at least through Thursday before temperatures return
to near normal again.

Aviation For 18z TAF issuance
issued at 1159 am cdt Sun aug 18 2019
the first band of showers and storms exited far northeast
wisconsin early this afternoon. Behind the storms, gusty west
to southwest winds of 15 to 25 knots with gusts up to 35 knots
were noted. The gusty winds will continue into the early
afternoon, then should gradually subside as the afternoon
progresses. There is a small chance of showers and storms
again this afternoon as the front moves across the region.

Coverage not that great, therefore did not include them
in the 18z tafs except at krhi. Skies will clear this
evening. The combination of light winds and clear skies should
allow for fog to develop across north-central and central
wisconsin. Any fog should burn off by 14-15z on Monday. Otherwise,
winds should back to the southwest at 5 to 10 knots Monday
morning withVFR conditions after the fog burns off.

Grb watches warnings advisories
None.

Short term... ..Eckberg
long term... ... Ml
aviation... ... .Eckberg


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
45014 23 mi42 min WSW 18 G 21 78°F 70°F1007.1 hPa
KWNW3 - 9087069- Kewaunee, WI 26 mi54 min W 11 G 14 76°F 1006.7 hPa
MN4 - 9087088 - Menominee, MI 45 mi60 min SW 14 G 20 75°F 70°F1005.6 hPa

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, WI8 mi79 minW 17 G 2710.00 miA Few Clouds75°F64°F71%1007.4 hPa

Link to 5 minute data for KGRB

Wind History from GRB (wind in knots)
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Last 24hrCalmSE7SE13SE6SE5S3CalmCalmSE3S5S6S7SE5S6S6SE10SE17
G29
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1 day agoE3W5SW3SW4SW4SW3SW4SW3W4W6W4CalmS3S5S4CalmW5S44W4W43S3S3
2 days agoCalmS6S5SE8S6S6S6S4S5S5S6S5SW4S5S6SE9S9S7
G16
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S11S11S13
G19
S7

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    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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Green Bay, WI (17,4,5,8)
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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.