Monday, January27, 2020
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Marine Weather and Tides
Sturgeon Bay, WI

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 7:14AMSunset 4:55PM Monday January 27, 2020 9:51 PM CST (03:51 UTC) Moonrise 10:02AMMoonset 8:41PM Illumination 10% Phase: Waxing Crescent; Moon at 3 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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LMZ521 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- 321 Pm Cst Fri Jan 24 2020
Tonight..NE wind 10 to 15 kts. Patchy fog. Drizzle in the evening. Light snow. A chance of drizzle and freezing drizzle after midnight.
Saturday..N wind 10 to 15 kts. Patchy fog in the morning. A slight chance of light snow in the morning. A chance of drizzle and freezing drizzle.
Saturday night..NW wind 5 to 10 kts. A chance of drizzle and freezing drizzle.
Sunday..NW wind 5 to 10 kts. Cloudy. Waves omitted due to ice coverage. This is the last issuance of the nearshore forecast for the bay of green bay for the season. The forecast for the bay will again be issued on or around april 1, 2020.
LMZ521 Expires:202001250515;;460231 FZUS53 KGRB 242121 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 321 PM CST Fri Jan 24 2020 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-250515-


7 Day Forecast for Marine Location Near Sturgeon Bay, WI
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location: 44.87, -87.4     debug


Area Discussion for - Green Bay, WI
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FXUS63 KGRB 272259 AFDGRB

Area Forecast Discussion National Weather Service Green Bay WI 459 PM CST Mon Jan 27 2020

Updated aviation portion for 00Z TAF issuance

SHORT TERM. Tonight and Tuesday Issued at 237 PM CST Mon Jan 27 2020

Another winter day in Wisconsin . another day trapped under a strong inversion, keeping thick cloud cover across the area. Radar and surface observations showing a few flurries and some drizzle or freezing drizzle across portions of the area as well. Tonight looks to be a repeat of last night, with model soundings looking pretty similar with plenty of moisture trapped below 5000 feet and another weak shortwave trough dropping across the area. Although moisture remains at low levels, lack of deeper moisture and weak forcing will limit potential for light snow and more widespread areas of drizzle and freezing drizzle. But will keep small chances in the forecast once again. The Northwoods stands the best chance to see the precip (mainly snow showers) due to a little added moisture boost from Lake Superior. Little to no accumulation is expected. With the clouds not budging tonight, leaned heavily toward the warmer guidance for low temps, which keeps most spots in the 20s.

For Tuesday, any lingering flurries and freezing drizzle and drizzle will end early in the day for most spots as the weak shortwave exits to the east. However, snow showers could continue into the afternoon across the Northwoods as winds will remain out of the north, bringing some lake effect activity into the area. Otherwise, expect plenty of clouds to remain across the area as there is no sign of the moisture trapped under 5000 feet mixing out. Cold air advection behind the weak system will make for a slightly colder day across the area but highs will remain above normal.

LONG TERM. Tuesday Night Through Monday Issued at 237 PM CST Mon Jan 27 2020

Minor precipitation chances and mild temperatures are expected through the period, with the possibility of an arctic air mass arriving early next week.

High pressure will bring generally quiet conditions Tuesday night into Thursday. Light east to northeast flow could bring some disorganized light snow showers or flurries to the lakeshore counties Tuesday night into Wednesday, and a short-wave trof could bring some flurries late Wednesday into Wednesday night. But overall, we are just looking at a mostly cloudy period, with continued above normal temperatures.

There is potential for light snow from late in the work week into the beginning of the weekend, as an upper trof moves through the region. There are some timing issues, but overall this appears to be low impact for late winter. Quiet weather is anticipated Sunday into Monday.

A bigger warmup may arrive toward Monday, as south flow increases ahead of a cold front. The GFS model supports a decent shot of arctic air in the wake of this front, while the ECMWF is much less aggressive at this time. We have plenty of time to sort this out, and it is beyond the scope of this forecast.

AVIATION. for 00Z TAF Issuance Issued at 447 PM CST Mon Jan 27 2020

As an upper-level disturbance passes through the area tonight, MVFR to occasional IFR ceilings will be possible. The best chance of seeing high-end IFR conditions will be across central/north- central WI. Eastern areas will likely be kept up a bit by downsloping winds. A few flurries will also be possible overnight into early Tuesday morning, but little to no visibility restrictions are expected. Overall improvement will slowly begin late Tuesday afternoon, although MVFR clouds may be stubborn to leave.

GRB WATCHES/WARNINGS/ADVISORIES. NONE.

SHORT TERM . Bersch LONG TERM . Kieckbusch AVIATION . Cooley


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MN4 - 9087088 - Menominee, MI 19 mi51 min NW 7 G 8 31°F 36°F1016.3 hPa (+0.7)25°F
KWNW3 - 9087069- Kewaunee, WI 28 mi51 min Calm G 2.9 32°F 1016.2 hPa (+0.6)
NPDW3 - Northport Pier at Death's Door WI 37 mi71 min N 5.1 G 6 30°F 1016.3 hPa

Wind History for Menominee, MI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Door County Cherryland Airport, WI3 mi55 minW 310.00 miOvercast31°F27°F85%1017.5 hPa
Menominee - Marinette Twin County Airport, MI21 mi55 minNW 410.00 miOvercast32°F25°F75%1017.7 hPa

Link to 5 minute data for KSUE

Wind History from SUE (wind in knots)
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Last 24hrN6N5N6N7N7N8N9NW8NW5NW5NW7NW7NW8NW8N9NW8NW5NW6NW4CalmNW4--CalmW3
1 day agoW5NW7NW7NW8W8--W7W9W8W11W9NW8W9W8W9W9W8W10W6W7W6N6NW3NE4
2 days agoNE6NE4NE5NE4NE4N4N3N3N4N4N3N5NW3NW4N11N12N8N7N6NW3W3W5W5NW5

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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wmap_A
GEOS 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 (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 numerous 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.