Tuesday, June19, 2018 L-36.com

Marine Weather and Tides
Copper Harbor, MI

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 5:11AMSunset 9:27PM Tuesday June 19, 2018 10:12 AM EDT (14:12 UTC) Moonrise 11:02AMMoonset 12:59AM Illumination 36% Phase: Waxing Crescent; Moon at 6 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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7 Day Forecast for Marine Location Near Copper Harbor, MI
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location: 63.03, -82.89     debug

Area Discussion for - Marquette, MI
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Fxus63 kmqt 191038
area forecast discussion
national weather service marquette mi
638 am edt Tue jun 19 2018

Short term (today and tonight)
issued at 257 am edt Tue jun 19 2018
upper air pattern consists of a 500 mb closed low over the northern
rockies and an associated trough in the western u.S. And a shortwave
in new england and a strong ridge over the sern u.S. This morning.

The closed low moves into the northern plains by 12z wed. Quiet
weather will continue this forecast period and made very little
changes to the going forecast.

Long term (Wednesday through Monday)
issued at 309 am edt Tue jun 19 2018
no major changes to going forecast through the upcoming weekend. For
most part dry weather is expected as sfc high pressure dominates.

Upper low over western conus, in a diminishing form, could come
close enough as it moves across the ohio valley and lower great
lakes to bring a small chance for light rain showers Fri night into
sat to mainly south and east forecast area. Even for areas that will
not see rain, should be a good deal of bkn-ovc mid-high clouds
around on sat. After this system moves by though, high pressure
rebuilds from hudson bay to the upper great lakes bringing another
period of dry weather later Sat into early next week. If enough
instability develops on sun, could see a pop-up shower or even t-
storm over inland west ahead of front that drops across the region
ahead of the strengthening high. Neither chance of rain is all that
high though. Latest wpc days 1-7 QPF indicates some areas of upper
michigan may stay dry over the next week and given the expected
upper air and sfc pattern that seems reasonable.

Ridging aloft never really builds in full force over the region and
even with sharper ridge moves in early next week, it looks like it
will be quickly pushed down by another southern stream system
sliding into the upper great lakes. Lack of strong ridging will
result in daytime temps topping out in the seasonable range with
inland readings in the mid to upper 70s to lower 80s. Temps along
the great lakes most days will be in the 60s. Nighttime temps will
fall into the 40s inland most nights, but at this point there does
not look to be any colder nights or risk of any frost. Winds should
be light through the period with lake breezes Wed through sat. Could
see a bit more of a breeze from the northeast on Sun as high
pressure builds back in from the north in wake of a front dropping
across the upper great lakes. Winds will shift more to the southeast
and south early next week ahead of approaching low pressure system.

Aviation (for the 12z tafs through 12z Wednesday morning)
issued at 638 am edt Tue jun 19 2018
with a dry air mass over the area,VFR conditions will prevail at
kiwd kcmx ksaw thru this fcst period. Winds will be under 10kt.

Marine (for the 4 am lake superior forecast issuance)
issued at 257 am edt Tue jun 19 2018
winds will stay at or below 20 knots through the forecast period.

Mqt watches warnings advisories
Upper michigan...


Lake superior...


Lake michigan...


Short term... 07
long term... Jla
aviation... 07
marine... 07

Weather Reporting Stations
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Airport Reports
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Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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GOES 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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Marquette, MI (10,2,3,4)
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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.