Sunday, August18, 2019 L-36.com


Marine Weather and Tides
Muskegon, MI

Version 3.4
NOTICE
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 6:52AMSunset 8:45PM Sunday August 18, 2019 5:56 PM EDT (21:56 UTC) Moonrise 9:34PMMoonset 8:41AM Illumination 89% Phase: Waning Gibbous; Moon at 18 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- 405 Pm Edt Sun Aug 18 2019
.small craft advisory in effect until 8 pm edt this evening...
Through early evening..South winds to 30 knots. Partly Sunny. Waves 3 to 5 feet.
Tonight..Southwest winds 10 to 15 knots veering north toward daybreak. Partly cloudy. Waves 2 to 4 feet.
Monday..Northwest winds 10 to 15 knots. Sunny. Waves 1 to 3 feet.
Monday night..North winds 5 to 10 knots veering east toward daybreak. Mostly clear. Waves 1 foot or less.
Tuesday..Southeast winds 5 to 10 knots veering southwest 10 to 15 knots. Sunny. Waves 1 foot or less.
Tuesday night..Southwest winds 5 to 10 knots veering northwest 10 to 15 knots toward daybreak. Partly cloudy. Waves 1 foot or less.
Wednesday..North winds 10 to 20 knots. Mostly Sunny. Waves 1 to 3 feet.
Thursday..North winds 5 to 10 knots backing northwest 10 to 20 knots. Sunny. Waves 1 to 2 feet.
Friday..East winds around 10 knots veering southeast, then backing northwest late in the day. Sunny. Waves 1 foot or less.
LMZ847 Expires:201908190800;;845712 FZUS53 KGRR 182006 NSHGRR Nearshore Marine Forecast National Weather Service Grand Rapids MI 405 PM EDT Sun Aug 18 2019 For waters within five nautical miles of shore on Lake Michigan LMZ847-190800-


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 181904
afdgrr
area forecast discussion
national weather service grand rapids mi
304 pm edt Sun aug 18 2019
latest update...

synopsis discussion marine

Synopsis
Issued at 304 pm edt Sun aug 18 2019
- a few more storms are possible this afternoon and again late
Tuesday.

- cooler Wednesday night through Saturday.

Discussion (this evening through next Sunday)
issued at 304 pm edt Sun aug 18 2019
surface analysis shows a cold front just crossing lake michigan.

Some clearing skies behind the earlier convection are allowing the
atmosphere to recover somewhat, but we're still a couple hours away
from any redevelopment... If it comes at all. However, convective
redevelpment remains a possibility from 4p-8p ahead of the cold
front. Convective inhibition progs suggest that sbsin will fall to
0j kg by 21z across the cwa.

After the front passes through, mainly dry weather is expected until
late Tuesday ahead of another cold front. We'll maintain pops in the
grids for storm possibilities the air behind the Tuesday front will
be very comfortable as dewpoints fall into the lower 50s. Highs in
the 70s and lows in the mid 50s are expected toward the end of the
week before warmer weather returns for the weekend.

Aviation (for the 18z tafs through 18z Monday afternoon)
issued at 150 pm edt Sun aug 18 2019
area of rain continues to press off to the east across southwest
lower michigan at 18z. This rain is associated with what is left
over from an area of showers storms that initially moved into
southwest lower michigan this morning. We are expecting the rain
to continue to diminish push east over the next hour or two.

The next question is whether or not we see another round of
showers and storms on the cold front that presses in from the west
this evening. The instability has diminished considerably due to
the rain and clouds. We are not expecting a big redevelopment of
the instability, which should keep the shower and storm chances on
the low side. Models continue to hint at showers and storms this
evening towards kbtl and kjxn, but they may not be taking into
account the full extent of how the atmosphere has been stabilized
today. So, for that reasoning have only included vcsh wording in
the tafs for now for this evening.

Next order of business is the threat of low clouds and fog
tonight. Feel the chance for low clouds is high, with all sites
likely seeing MVFR ceilings developing. Cannot rule out some ifr
ceilings along i-94 as well. The front stalls over the area
tonight and the low clouds will likely do the same into the day on
Monday. Some fog is expected tonight as well, but at this point
not expecting it to become dense.

Marine
Issued at 304 pm edt Sun aug 18 2019
frequent wind gusts to 25 knots through late afternoon will be
hazardous to small craft and waves hazardous to beach goers. Small
craft and beach hazards advisories will remain in effect through 8
pm.

Grr watches warnings advisories
Mi... Beach hazards statement until 8 pm edt this evening for miz037-
043-050-056.

Lm... Small craft advisory until 8 pm edt this evening for lmz846>849.

Synopsis... 04
discussion... 04
aviation... Duke
marine... 04


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MKGM4 - Muskegon, MI 4 mi36 min W 12 G 13 72°F 1009.6 hPa68°F
45161 6 mi56 min 12 G 16 73°F 71°F4 ft1010.2 hPa (+3.3)
45029 23 mi26 min SW 5.8 G 7.8 72°F 69°F3 ft1010 hPa67°F
HLNM4 - 9087031 - Holland, MI 32 mi62 min WSW 9.9 G 12 73°F 1010.1 hPa71°F
LDTM4 - 9087023 - Ludington, MI 50 mi62 min WSW 4.1 G 9.9 72°F 65°F

Wind History for Holland, MI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Muskegon, Muskegon County Airport, MI3 mi2 hrsSW 15 G 2710.00 miOvercast78°F66°F69%1009.4 hPa
Fremont Municipal Airport, MI20 mi2.3 hrsWSW 9 G 1610.00 miFair78°F65°F67%1009.1 hPa

Link to 5 minute data for KMKG

Wind History from MKG (wind in knots)
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Last 24hrSW9W3CalmCalmE3CalmSE4CalmE3CalmE4CalmE5SE8S5SE6S9S11S4SE15SE13
G20
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1 day agoS9S7S7S5SE9S8SW7W6W3SW3SW4W5Calm3W6W7W8SW7W7SW5SW7SW76NW4
2 days agoNE3W7W4W5CalmSE3E4SE5SE5SE5CalmSE4SE4CalmE5SE5SE7S8SW8SW12S13
G20
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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.
Link to Loop

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Wind Forecast for Grand Rapids, MI (17,4,5,8)
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Ground Weather Radar Station Grand Rapids/Muskegon, 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.