Tuesday, February18, 2020
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Marine Weather and Tides
Watersmeet, MI

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 6:53AMSunset 5:31PM Tuesday February 18, 2020 12:10 AM CST (06:10 UTC) Moonrise 4:48AMMoonset 1:36PM Illumination 30% Phase: Waning Crescent; Moon at 24 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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LSZ241 Expires:201909220230;;152754 fzus73 kmqt 220136 mwsmqt marine weather statement national weather service marquette mi 936 pm edt Sat sep 21 2019 lsz240-241-263-220230- 936 pm edt Sat sep 21 2019 a marine weather statement has been issued for the following areas... Black river to ontonagon mi... Lake superior from saxon harbor wi to upper entrance to portage canal mi 5nm off shore to the us/canadian border including isle royal national park... Saxon harbor wi to black river mi... At 934 pm edt, doppler radar indicated a strong Thunderstorm, capable of producing winds to around 30 knots. This Thunderstorm was located near saxon harbor, moving northeast at 35 knots. The strong Thunderstorm will affect the nearshore and adjoining waters from little girl's point to silver city. Precautionary/preparedness actions... Mariners can expect gusty winds to around 30 knots, locally higher waves, and lightning strikes. Boaters should seek safe harbor immediately until this storm passes. && lat...lon 4667 9044 4683 9033 4706 8974 4681 8953 4678 8976 4667 8995 4654 9038
LSZ241


7 Day Forecast for Marine Location Near Watersmeet, MI
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location: 46.22, -89.27     debug


Area Discussion for - Green Bay, WI
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FXUS63 KGRB 180452 AFDGRB

Area Forecast Discussion National Weather Service Green Bay WI 1052 PM CST Mon Feb 17 2020

Updated aviation portion for 06Z TAF issuance

SHORT TERM. Tonight and Tuesday Issued at 252 PM CST Mon Feb 17 2020

The left exit region of a 135 knot upper jet will move across eastern Wisconsin during the evening hours, while low level warm advection takes place across the entire region during the late afternoon and early evening hours.

The best combination of forcing is east of an Iron Mountain to Waupaca line line, where 3 to 5 inches are likely. 1 to 3 inches of snow are expected further west. The snow could end as some light freezing drizzle or drizzle late tonight as mid level moisture exits the area. Clouds will keep low temperatures tonight 5 to 10 degrees above normal, with highs Tuesday pretty close to normal for this time of the year.

LONG TERM. Tuesday Night Through Monday Issued at 252 PM CST Mon Feb 17 2020

The long term will be an extended period of fairly quiet weather, but marked by fairly cold temperatures, as an arctic air mass moves through the region. The next chance for active weather is currently expected to be towards the end of the weekend.

Surface high pressure is expected to move in to the region Tuesday night, as an arctic air heads towards the region. Low temperatures will remain fairly season as CAA doesn't really get started until the daylight hours of Wednesday. Continued northwesterly flow will then keep temperatures fairly close to the previous night's lows. The only chance for active weather through the midweek will be lake effect snow from Lake Superior, but this is currently expected to only impact Vilas County. Skies will clear Wednesday afternoon everywhere but far northern Wisconsin, which will allow some sunshine to take the edge off the incoming cold.

Quiet conditions, clear skies, and continued northwesterly flow at the surface will bring in bitterly cold temperatures Wednesday night through Thursday night, as the upper level ridge moves over the region. Temperatures will remain well below normal during this period until return flow gets established Friday afternoon. Brought the temperatures for the overnight hours down towards the coldest guidance, as light winds and clear skies are often underestimated, especially across central and north-central Wisconsin.

Friday, return flow behind the departing high brings back access to warmer air from the south, which will bring a rapid recovery in temperatures, back to the 30s. Warmer than normal conditions then continue through the rest of the weekend, getting well above normal by the beginning of next week. Models have then begun to pick up on the signal for some active weather Monday, but details are unclear at this time.

AVIATION. for 06Z TAF Issuance Issued at 1052 PM CST Mon Feb 17 2020

IFR conditions will continue to impact the TAF sites overnight as snow continues across the region. The heaviest snow and lowest visibilities should be east of a Wisconsin Dells to Waupaca to Iron Mountain line. There could be moderate snow and half mile visibility at Y50/PCZ/CLI/EZS/OCQ/MNM/OSH/ATW/GRB/SUE/MTW before the snow ends. Conditions are then expected to improve to VFR during the day on Tuesday as the low shifts off to the east and drier air advects in from the west. The exception will be across north- central Wisconsin, including RHI, where lake effect clouds and MVFR conditions are expected to continue through Tuesday afternoon.

GRB WATCHES/WARNINGS/ADVISORIES. Winter Weather Advisory until 3 AM CST Tuesday for WIZ011>013- 019>022-030-031-035>040-045-048>050-073-074.

SHORT TERM . RDM LONG TERM . Uhlmann AVIATION . Kurimski


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SXHW3 - Saxon Harbor, WI 66 mi91 min NW 4.1 G 5.1 26°F 1012.9 hPa

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Land O' Lakes, Kings Land O' Lakes Airport, WI5 mi16 minN 01.75 miLight Snow28°F26°F96%1009.8 hPa
Eagle River Union Airport, WI20 mi16 minN 31.75 miLight Snow27°F26°F99%1009.1 hPa

Link to 5 minute data for KLNL

Wind History from LNL (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmSE3--SE6SE8S9
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1 day agoW5W4NW6NW5W4W4NW3W3W3W6NW5N8W6W3N4W5NW3N4CalmCalmCalmCalmCalmCalm
2 days agoS9
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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 GreatLakes    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 (1,6,7,8)
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Ground Weather Radar Station Marquette, MI
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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.