Friday, January24, 2020
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Marine Weather and Tides
Oshkosh, 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 7:18AMSunset 4:54PM Friday January 24, 2020 11:46 AM CST (17:46 UTC) Moonrise 8:24AMMoonset 5:41PM Illumination 0% Phase: New Moon; Moon at 29 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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LMZ543 Expires:202001242315;;446897 Fzus53 Kgrb 241538 Nshgrb Nearshore Marine Forecast National Weather Service Green Bay Wi 938 Am Cst Fri Jan 24 2020 For Waters Within Five Nautical Miles Of Shore On Lake Michigan Lmz542-543-242315- Sturgeon Bay To Two Rivers Wi-two Rivers To Sheboygan Wi- 938 Am Cst Fri Jan 24 2020
.dense fog advisory in effect until 9 pm cst this evening...
This afternoon..E wind 10 to 20 kts. Waves 2 to 4 ft. Areas of dense fog. Periods of light rain, light snow and drizzle.
Tonight..NE wind 10 to 20 kts veering E 10 to 15 kts after midnight. Waves 2 to 4 ft. Patchy fog. Light rain and snow changing to snow.
Saturday..NE wind 10 to 15 kts, backing nw 5 to 10 kts early in the afternoon. Waves 2 to 4 ft, subsiding to 1 to 3 ft in the afternoon. A chance of drizzle.
Saturday night..NW wind 10 to 15 kts. Waves 2 ft or less. A chance of drizzle and freezing drizzle.
LMZ543


7 Day Forecast for Marine Location Near Oshkosh, WI
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location: 44.02, -88.56     debug


Area Discussion for - Green Bay, WI
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FXUS63 KGRB 241140 AFDGRB

Area Forecast Discussion National Weather Service Green Bay WI 540 AM CST Fri Jan 24 2020

Updated aviation portion for 12Z TAF issuance

SHORT TERM. Today . Tonight . and Saturday Issued at 312 AM CST Fri Jan 24 2020

Upper low moving from near Saint Louis to southwest Lower Michigan will produce periods of snow today and tonight. The best upper support is this morning and again tonight, so that is when the most significant snow should fall. The precipitation could diminish to drizzle or end for awhile this afternoon.

Temperatures at 925mb and 850mb support snow across the entire region, but temperatures in the boundary layer may be mild enough to cause the snow to melt at times in the Fox Valley and Lakeshore counties. Assuming that most of the precipitation falls as snow, there should be an inch or snow of new snow this morning and a couple inches of snow tonight. The snow amounts near the Lake Michigan shore may be less.

The snow should end or turn to drizzle Saturday, with any snow accumulation limited to northcentral Wisconsin. Mild temperatures will continue with highs today and tomorrow 5 to 10 degrees above normal and lows tonight around 15 to 20 degrees above normal.

LONG TERM. Saturday Night Through Thursday Issued at 312 AM CST Fri Jan 24 2020

The weather pattern looking a lot like an El Nino pattern over the next 10 days. Zonal flow will continue to bring a mild Pacific air mass over the next week, with the arctic air remaining across Canada. The latest ECMWF/GFS guidance has highs mainly in the 30s with lows in the teens and 20s. Normal high for this time of year is in the lower to middle 20s.

For Saturday night, low pressure across the western Great Lakes will move into Canada. This system will still produce some lingering light precipitation. Bufkit soundings would suggest mainly drizzle/freezing drizzle, but still kept a chance of light snow as upper level disturbance drops south towards the area later in the night. Will continue the chance of flurries, with a few sprinkles possible during the afternoon on Sunday.

Dry conditions will prevail Sunday night through Tuesday morning. Weak upper level disturbances moving through the mean flow will bring chances of mainly snow showers Tuesday afternoon into Thursday. Some timing differences noted on the models were noted, thus confidence is low when the best chance of snow would occur. With daytime temperatures running well into the 30s, some rain is also possible. Otherwise, temperatures are expected to run 10 to 15 degrees above normal for much of next week.

AVIATION. for 12Z TAF Issuance Issued at 540 AM CST Fri Jan 24 2020

IFR conditions are expected through Saturday afternoon, along with periods of light snow. The snow this morning will diminish to a mix of light snow and drizzle this afternoon before turning to all snow again this evening. The snow will end early Saturday with areas of drizzle during the day.

GRB WATCHES/WARNINGS/ADVISORIES. NONE.

SHORT TERM . RDM LONG TERM . Eckberg AVIATION . RDM


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SGNW3 - Sheboygan, WI 50 mi47 min E 11 G 11 36°F
PWAW3 - Port Washington, WI 57 mi67 min E 8 G 9.9 38°F 1014.2 hPa

Wind History for Kewaunee MET, WI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wittman Regional Airport, WI1 mi54 minNE 71.50 miFog/Mist33°F32°F96%1014.8 hPa
Appleton-Outagamie, WI17 mi62 minENE 92.00 miLight Drizzle Fog/Mist34°F33°F100%1013.5 hPa
Fond Du Lac County Airport, WI18 mi54 minNE 71.00 miLight Snow Fog/Mist35°F33°F93%1014 hPa

Link to 5 minute data for KOSH

Wind History from OSH (wind in knots)
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Last 24hrCalmE4E6NE5NE5NE6NE5NE5NE5E5E7E4NE4E6E5NE5NE6NE7NE8NE8NE8NE8NE8NE7
1 day agoS13S9S7S9S12S13S16S15S14S15S8S6S6S7SE5SE5SE5S5SE4SE5SE5SE6SE5SE5
2 days agoSW8
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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 (12,3,4,5)
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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.