Wednesday, December11, 2019
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Marine Weather and Tides
Watersmeet, MI

Version 3.4
NOTICE
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.
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 7:24AMSunset 4:18PM Wednesday December 11, 2019 3:17 AM CST (09:17 UTC) Moonrise 5:04PMMoonset 7:42AM Illumination 100% Phase: Full Moon; Moon at 14 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 110439 AFDGRB

Area Forecast Discussion National Weather Service Green Bay WI 1039 PM CST Tue Dec 10 2019

Updated aviation portion for 06Z TAF issuance

SYNOPSIS. Issued at 241 PM CST Tue Dec 10 2019

Cold tonight into Wednesday, then another round of snow late Wednesday night through Thursday.

The highly amplified upper pattern in place at the start of the period will quickly break down as a strong jet surges east from the Pacific. The resulting zonal flow won't last long either, as a trend toward a more slightly amplified but progressive pattern is expected next week.

The period will begin with well below normal temperatures, but readings will quickly rebound back close to seasonal normals by the end of the work week. Readings will drop off again after that, though likely not to current levels. There will be at least a couple rounds of precipitation during the period, but those probably won't be quite enough to bring totals for the 7 day period to normal.

SHORT TERM. Tonight and Wednesday Issued at 241 PM CST Tue Dec 10 2019

Skies were partly to mostly cloudy across the north and mostly sunny across the south early this afternoon. Temperatures ranged from the single digits across central and north-central Wisconsin to the teens across the Fox Valley and lakeshore.

The clouds should exit the area late this afternoon or early this evening. Winds may drop off for a period of time this evening and then increase again overnight. There was a large range in guidance values for lows tonight. The warmer met guidance was 3 to 7 degrees warmer than the mav guidance at Green Bay, Rhinelander and Wausau. A glance at the latest verification stats indicated the MAV guidance has a cool bias over the last few days. Took a blend of the warmer met and cooler mav guidance for lows tonight, which was near the mean of the guidance values. The combination of the cold temperatures and winds will cause wind readings to fall to 20 below to 30 below zero tonight into Wednesday morning for much of the area north and west of the Fox Valley. Have added southern Marinette and southern Oconto Counties to the wind chill advisory.

The difference in guidance values and biases continue again on Wednesday. Took a blend of the warmer met and the cooler mav guidance. Sunny skies will prevail, although it will be cold with highs in the single digits to around 10 above zero.

LONG TERM. Wednesday Night Through Tuesday Issued at 241 PM CST Tue Dec 10 2019

Temperatures Wednesday night into Thursday still are very tricky and will depend on how quickly clouds overspread the area. But compared to yesterday, it now looks like clouds will arrive a little more quickly. Adjusted the low temperature grid to have the lowest readings in the northeast part of the state. But this is a highly uncertain aspect of the forecast, and significant additional adjustments may still be needed in later issuances.

The precipitation event late Wednesday night through Thursday looks more substantial than yesterday. That isn't really surprising since the tight baroclinic zone across the area will be favorable for strong lift. Adjusted snowfalls upward, ranging from about 3-5 inches across most of the north to 1-3 inches in the south. The north may need to be bumped up even further, but the axis of heaviest snows can be quite narrow in situations such as this so was not comfortable making that big of a change 2 days out.

Another round of light snow is possible Friday night into Saturday, but that probably won't be as significant with just 1-2 inches possible across the north.

AVIATION. for 06Z TAF Issuance Issued at 1039 PM CST Tue Dec 10 2019

Other than some patches of isolated MVFR clouds, VFR conditions are expected through Wednesday afternoon at all of the TAF sites. Mid and high clouds will then increase from west to east late Wednesday afternoon and Wednesday evening ahead of an approaching low pressure system. Winds tonight have not increased over land, therefore will reduce speeds at the TAF sites until later Wednesday morning when daytime heating should bring down higher wind speeds to the surface with gusts of 15 to 20 knots. Winds should then ease Wednesday afternoon as high pressure builds in across the western Great Lakes region.

GRB WATCHES/WARNINGS/ADVISORIES. Wind Chill Advisory until noon CST Wednesday for WIZ005-010>013- 018>021-030-031-035-036-073-074.

SYNOPSIS . Skowronski SHORT TERM . Eckberg LONG TERM . Skowronski AVIATION . Kurimski


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SXHW3 - Saxon Harbor, WI 66 mi38 min SSW 9.9 G 15 -6°F 1021 hPa

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Land O' Lakes, Kings Land O' Lakes Airport, WI5 mi23 minW 510.00 miFair-10°F-15°F78%1016.9 hPa
Eagle River Union Airport, WI20 mi23 minW 710.00 miFair-11°F-16°F76%1016.9 hPa

Link to 5 minute data for KLNL

Wind History from LNL (wind in knots)
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Last 24hrNW4W5W4W5W4W5W7W7W4W7W6W5NW6W4W4W7W7W6CalmSW3SW3SW3W5W5
1 day agoE5E5NE4E6E6N4N6N6N7N6N7N9N9N8
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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
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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 (4,6,7,8)
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Ground Weather Radar Station Marquette, MI
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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.