Monday, March25, 2019 L-36.com


Marine Weather and Tides
Boyne City, MI

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:28AMSunset 7:57PM Monday March 25, 2019 8:55 PM EDT (00:55 UTC) Moonrise 12:00AMMoonset 9:29AM Illumination 75% Phase: Waning Gibbous; Moon at 20 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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LMZ342 Norwood Mi To 5nm West Of Mackinac Bridge Including Little Traverse Bay- 845 Pm Edt Mon Mar 25 2019
Overnight..Light winds. Clear. Waves 2 feet or less.
Tuesday..Southwest wind 5 to 10 knots. Sunny. Waves 2 feet or less.
Tuesday night..Southwest wind 10 to 15 knots with gusts to around 20 knots. Mostly clear. Waves 2 feet or less.
Wednesday..Southwest wind 10 to 15 knots with gusts to around 25 knots. Partly Sunny. Waves 2 feet or less. Wave heights are valid for ice free areas. SEe the open lakes forecast for days 3 through 5.
LMZ342 Expires:201903260845;;342801 FZUS53 KAPX 260045 NSHAPX Nearshore Marine Forecast National Weather Service Gaylord MI 845 PM EDT Mon Mar 25 2019 For waters within five nautical miles of shore on Lakes Huron... Michigan and Superior. Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. LMZ342-260845-


7 Day Forecast for Marine Location Near Boyne City city, MI
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location: 45.21, -85.02     debug


Area Discussion for - Gaylord, MI
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Fxus63 kapx 260045
afdapx
area forecast discussion
national weather service gaylord mi
845 pm edt Mon mar 25 2019

Update
Issued at 845 pm edt Mon mar 25 2019
large area of strong cold canadian high pressure continues to
settle into the central us and great lakes region late this
evening. Skies remain completely clear across our entire cwa... And
will remain so thru the remainder of the night. Temps are dropping
thru the 30s under clear skies and diminishing winds... But expect
enough of a gradient will remain overnight to prohibit temps from
completely tanking overnight. However... Expect another cold night
across the northwoods with overnight lows dropping into the teens
to lower 20s.

Near term (through tonight)
issued at 344 pm edt Mon mar 25 2019
high impact weather potential... No high impact weather anticipated.

Pattern synopsis forecast... Quiet weather is expected across
northern michigan tonight, courtesy of building surface high
pressure and an associated dry airmass. Cloud cover will be
nonexistent, and winds should die off as the high pressure builds
in. Main concern overnight is how low temperatures will drop given
the good radiational cooling conditions. Since conditions overall
haven't changed much from this morning, went with lows similar to
those seen earlier today.

Short term (Tuesday through Thursday)
issued at 344 pm edt Mon mar 25 2019
high impact weather potential... None.

Pattern synopsis forecast... A strong, expansive surface high
initially centered over lower michigan Tuesday morning will drift
southeast of the area Tuesday night. Warm air and moisture advection
will increase heading into Wednesday as southwesterly return flow
ramps up ahead of the next system. Deepening low pressure tracking
towards james bay Wednesday night into Thursday will drag a cold
front through northern michigan on Thursday.

Primary forecast concerns... Precipitation chances late Wednesday
through Thursday.

Isentropic lift and a weak shortwave will slide across northern
michigan Wednesday afternoon-evening. Upper troughing then dives
into the area on Thursday as the low passes through james bay, with
weak forcing accompanying the trailing cold front. Despite pwats
climbing near 0.7 inches, it looks like another case where a lack of
deep layer moisture will limit overall precipitation potential.

Moisture will generally be limited to the lowest 10-15 kft, at times
perhaps below 5000 ft. Looks like just scattered rain shower
potential across eastern upper and perhaps the tip of the mitt
Wednesday afternoon evening. Will go with slight chance to chance
pops late Wednesday night into Thursday as the cold front passes
through.

Long term (Thursday night through Monday)
issued at 344 pm edt Mon mar 25 2019
high impact weather potential... Minimal.

Weak high pressure slides across the upper great lakes Thursday
night into Friday. A developing low is progged to eject from the
central plains, riding a cold front into the ohio valley or lower
great lakes region by Saturday. This system will bring greater
potential for a more widespread precipitation event across northern
michigan, but it's exact track will determine the northward extent
of the precip. This will likely take the form of snow showers Friday
night before some areas transition to rain on Saturday. We might
even see some lake effect snow showers develop on Sunday as some
colder air briefly spills into the region. High pressure returns for
Monday.

Aviation (for the 00z tafs through 00z Tuesday evening)
issued at 700 pm edt Mon mar 25 2019
strong high pressure and dry air thru the column will remain in
control of the wx across northern michigan thru Tuesday night...

resulting in clear skies and no precip. Winds will become light
variable tonight and then shift to the SW AOB 10 kts on Tuesday.

Marine
Issued at 344 pm edt Mon mar 25 2019
strong high pressure and a very dry airmass will remain over the
region tonight into Tuesday before departing to the atlantic coast
Tuesday night. As a result, expect continued clear skies until
higher clouds spread into the region Tuesday night into Wednesday
ahead of the next system. Still some low end advisory gusts across
northern lake huron, the st. Mary's, and whitefish bay, but those
will eventually subside this evening. Lighter winds out of the
southwest on Tuesday.

Apx watches warnings advisories
Mi... None.

Lh... Small craft advisory until 1 am edt Tuesday for lhz346>348.

Lm... None.

Ls... None.

Update... Mr
near term... Pb
short term... Mk
long term... Mk
aviation... Mr
marine... Mk


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
GTLM4 - Grand Traverse Light, MI 28 mi75 min W 7 G 8.9 31°F 1027.4 hPa
MACM4 - 9075080 - Mackinaw City, MI 42 mi55 min WNW 9.9 G 14 30°F 34°F1026.3 hPa (+0.5)-17°F

Wind History for Mackinaw City, MI
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Last
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N7
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NW5
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Charlevoix, Charlevoix Municipal Airport, MI15 mi59 minWSW 610.00 miFair30°F19°F66%1027.8 hPa
Harbor Springs, Harbor Springs Airport, MI16 mi60 minWSW 510.00 miFair28°F20°F73%1026.4 hPa
Bellaire, Antrim County Airport, MI18 mi60 minN 010.00 miFair31°F11°F44%1027.4 hPa
Gaylord Regional Airport, MI22 mi62 minNW 310.00 miFair28°F7°F41%1027.5 hPa

Wind History from CVX (wind in knots)
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Last 24hrN9
G17
N5N8N6N5CalmN3N9N7N5N5CalmCalmNW3NW3N3N5NW5W6SW9W8W8W8SW6
1 day agoSW8SW8
G14
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G15
S7S7S7SW7SW10SW11
G17
SW11SW7W10SW11W11NW8N5NW5N8N9N5N8N6N8N10
2 days agoNW8NW6NW5NW4W5W5NW4W5NW3CalmCalmCalmCalmW8W13
G17
W10
G16
W8SW12
G16
SW10SW10
G16
SW11SW10SW6S7

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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wmap_A
GOES 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 Gaylord, MI (20,4,5,8)
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Ground Weather Radar Station Gaylord, 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 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.