Thursday, November15, 2018 L-36.com


Marine Weather and Tides
Muskegon, 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 7:37AMSunset 5:21PM Thursday November 15, 2018 6:57 PM EST (23:57 UTC) Moonrise 1:59PMMoonset 12:00AM Illumination 55% Phase: First Quarter Moon; Moon at 8 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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LMZ847 Grand Haven To Whitehall Mi- 330 Pm Est Thu Nov 15 2018
.small craft advisory in effect from 10 pm est this evening through late Friday night...
Tonight..Southwest winds 15 to 25 knots. Mostly cloudy with a chance of snow showers. Waves around 1 foot building to 4 to 6 feet.
Friday..Northwest winds to 30 knots. Cloudy. A chance of snow showers until midday. Waves 6 to 8 feet.
Friday night..Northwest winds 10 to 20 knots. Mostly cloudy. A chance of snow showers overnight. Waves 4 to 6 feet subsiding to 2 to 4 feet toward daybreak.
Saturday..North winds 10 to 20 knots. Cloudy with a chance of snow showers. Waves 2 to 3 feet.
LMZ847 Expires:201811160400;;356047 FZUS53 KGRR 152030 NSHGRR Nearshore Marine Forecast National Weather Service Grand Rapids MI 330 PM EST Thu Nov 15 2018 For waters within five nautical miles of shore on Lake Michigan LMZ847-160400-


7 Day Forecast for Marine Location Near Muskegon, MI
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location: 43.23, -86.26     debug


Area Discussion for - Grand Rapids, MI
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Fxus63 kgrr 152354
afdgrr
area forecast discussion
national weather service grand rapids mi
654 pm est Thu nov 15 2018
latest update...

aviation

Synopsis
Issued at 317 pm est Thu nov 15 2018
periods of snow can be expected tonight through Friday morning
and again on Friday night into Saturday as a cold and wintry
pattern continues across michigan.

Update
Issued at 605 pm est Thu nov 15 2018
expect locally intense snow band to begin pushing east this evening
and will be out of the area by midnight. Another 1 to 2 inches
possible mainly east of us-131. Some light freezing drizzle rain
possible with snow later this evening but additional impacts
should be negligible given that wet surfaces are already starting
to freeze. Another burst of snow around the Friday morning
commute could again impact travel especially where road surfaces
have already fallen below freezing.

Discussion (this evening through next Thursday)
issued at 317 pm est Thu nov 15 2018
forecast issues include timing and amounts of snow through Friday
morning and again Friday night into Saturday morning. Some impacts
to travel are possible at times beginning this evening and again
Friday night and Monday night.

Skin temperatures went above freezing this morning and snow has
not accumulated on roads since then, but with the loss of
insolation and temperatures below freezing this evening we could
see some icy patches and accumulations on roads again. We will
handle this with spss unless widespread hazardous travel
conditions are expected to persist longer than two hours.

The f-gen decreases this evening and the steadier snow should be
ending by midnight. Another burst of snow is possible around
daybreak as a sharp shortwave trough axis moves across lower
michigan. The timing of this around the morning commute could
cause some travel problems, but this is another quick hitter with
the snow expected to last only an hour or two. Any accums should
be an inch or less.

There will be yet another quick snow event Friday night into
Saturday morning as strong sfc convergence along an arctic front
brings the chance for light accums. Fair and cold behind the front
with only scattered lake effect snow showers as inversion heights
are progged to be below 5000 feet.

Northwest flow pattern continues into next week with a clipper and
arctic front bringing snow Monday night which at this point looks
to be enough to cause travel impacts for the Tuesday morning
commute.

Aviation (for the 00z tafs through 00z Friday evening)
issued at 654 pm est Thu nov 15 2018
ifr highly likely at all terminals through 06z and remaining
likely through 12z. Temporary lifr at kgrr and possibly
transitioning lan around 04z area of moderate to heavy snow will
push east of terminals by around 05z with a brief transition to
freezing drizzle possible.

A second round of snow will briefly restrict visibility from west
to east between 10z and 15z, with lowest visibilities at the
western terminals - i.E., grr mkg azo. Restrictions should not be
as significant as what we're currently seeing.

Marine
Issued at 317 pm est Thu nov 15 2018
no changes to the small craft advisory. Conditions should begin to calm
down Friday night.

Hydrology
Issued at 1239 pm est Thu nov 15 2018
no hydro concerns are present for the upcoming weekend while current
river levels continue to remain steady and or fall. Precipitation
concerns remain limited in the near term as amounts look light and
frozen. Still no concerns for ice jams as river temperatures remain
above freezing.

Grr watches warnings advisories
Mi... Winter weather advisory until 10 am est Friday for miz037>040-
043>046-050>052-056>059-064>067-071>074.

Lm... Small craft advisory from 10 pm this evening to 1 am est
Saturday for lmz844>849.

Update... Tjt bsb
synopsis... Ostuno
discussion... Ostuno
aviation... Tjt
hydrology... Anh
marine... Ostuno


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MKGM4 - Muskegon, MI 4 mi37 min SE 6 G 7 31°F 1014.8 hPa31°F
HLNM4 - 9087031 - Holland, MI 32 mi45 min E 5.1 G 8 32°F 1012.7 hPa32°F
LDTM4 - 9087023 - Ludington, MI 50 mi39 min ESE 4.1 G 7 32°F 27°F

Wind History for Holland, MI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Muskegon, Muskegon County Airport, MI3 mi62 minESE 41.00 miLight Snow Fog/Mist32°F28°F85%1014.3 hPa
Fremont Municipal Airport, MI20 mi61 minESE 32.50 miLight Snow31°F29°F92%1013.2 hPa

Wind History from MKG (wind in knots)
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Last 24hrNE3E4E3E5E6SE6E3NE5E3E4E3NE4NE6NE6NE6E4E7E5E7E5E4E5E5SE4
1 day agoW10W6NW9NW11
G16
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W8W9NW8W9NW5NW5N7N5NE8N5E8CalmSE6CalmSE4SW4Calm
2 days agoN8N5N6N6N5NE3CalmCalmCalmN10NW13N15
G21
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G18
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G15

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Grand Rapids, MI (18,4,5,8)
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Ground Weather Radar Station Grand Rapids/Muskegon, MI
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weather_mapweather_map weather_map

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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.