Sunday, January26, 2020
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Marine Weather and Tides
Suamico, 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 7:15AMSunset 4:53PM Sunday January 26, 2020 4:01 PM CST (22:01 UTC) Moonrise 9:36AMMoonset 7:42PM Illumination 4% Phase: Waxing Crescent; Moon at 2 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: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- 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.
LMZ522


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


Area Discussion for - Green Bay, WI
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FXUS63 KGRB 262037 AFDGRB

Area Forecast Discussion National Weather Service Green Bay WI 237 PM CST Sun Jan 26 2020

Forecast discussion for routine afternoon forecast issuance

SHORT TERM. Tonight and Monday Issued at 237 PM CST Sun Jan 26 2020

Mainly dry conditions prevailed across the area this afternoon, with only a few sprinkles or flurries across Door County and near the MI/WI border. There were a couple peaks of sunshine across the downslope region of far northeast WI, otherwise cloudy skies continued to dominate the region. Temps were stuck in the 20s across most of central WI, with lower and middle 30s across the rest of the area.

For tonight, cyclonic flow will hold the thick cloud cover in place through the night. Forecast soundings show low level moisture trapped below an inversion around 3000-4000 ft but limited moisture in the mid-levels. As the evening progress, low level moisture looks to become deep enough (more than 1km) at times, along with a weak mid-level trough providing weak lift, to produce some patchy freezing drizzle. Confidence not high on if this will occur or how widespread it will be., but prefer to have at least a slight chance for the freezing drizzle, so added it to the forecast. Patchy fog will once again be possible as the slow snow melt continues. The clouds will hold temps up again tonight, with lows in the middle 20s to near 30. The freezing drizzle and refreezing of wet pavement could lead to some slippery roads and surfaces.

For Monday, any lingering freezing drizzle will end early in the day as mid and upper level ridging builds in from the west. Still plenty of moisture trapped under the inversion so clouds are expected to stick around. Can't rule out a flurry sprinkle in the afternoon, mainly across northern WI, but will stick with a dry forecast. Highs will be well above normal once again and should be pretty close to highs today.

LONG TERM. Monday Night Through Sunday Issued at 237 PM CST Sun Jan 26 2020

Surface-based high pressure will move slowly toward the east through the Great Lakes region during the upcoming work week. During that time, a few upper level disturbances will sweep across the region and bring a slight chance for light precipitation at times. Temperatures will generally be a little warmer than normal for this time of year in northeast Wisconsin, with highs generally in the 30s and lows in the 20s.

Models are inconsistent in narrowing down the characteristics of potential storm development next weekend. The most recent 12Z runs of the ECMWF and GFS models are quite different in handling the pattern that emerges by Friday, but both depict a low pressure trough extending at least into the northeast U.S. during the weekend. Confidence in the details of this long-term forecast is low.

AVIATION. for 18Z TAF Issuance Issued at 1159 AM CST Sun Jan 26 2020

A mix of LIFR, IFR and MVFR CIGs were found across the area during the morning hours. The lowest clouds, along with some patchy fog, was found across central and north central WI.

Very little change is expected through Monday morning with clouds hanging tough across the area. Weak mid-level trough will cross the area this evening, which could produce some freezing drizzle and flurries. Added -SNDZ to the KRHI TAF for starters, as confidence is highest across northern WI. Left the mention out for KAUW/KCWA/KGRB/KATW/KMTW for now, but might need to be added this evening. Fog is expected later this evening into early Monday as well, especially across central and north-central WI.

GRB WATCHES/WARNINGS/ADVISORIES. NONE.

SHORT TERM . Bersch LONG TERM . ML AVIATION . Bersch


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KWNW3 - 9087069- Kewaunee, WI 28 mi44 min WNW 7 G 13 35°F 1009.2 hPa
MN4 - 9087088 - Menominee, MI 36 mi44 min W 6 G 8 37°F 36°F1009.3 hPa29°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 mi69 minW 810.00 miOvercast35°F28°F76%1011 hPa

Link to 5 minute data for KGRB

Wind History from GRB (wind in knots)
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Last 24hrW4W5W6W6NW6W8W6W8NW8NW6W6W7W5W5W5W7W8W10W11W10W10W11W8W6
1 day agoN9NE9N9NE11NE12N11N8NE11N9N9N7N6N6N5N5N5NW5N7N5N7N5NW4NW5NW3
2 days agoNE8NE6NE6NE5E5NE6E6E7E6E6E6NE6NE6NE8NE8NE9NE12NE13NE11NE9NE9NE10NE10NE9

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 (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 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.