Friday, October18, 2019 L-36.com


Marine Weather and Tides
Holland, 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 7:59AMSunset 6:59PM Friday October 18, 2019 7:59 PM EDT (23:59 UTC) Moonrise 9:09PMMoonset 11:39AM Illumination 72% 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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LMZ846 Holland To Grand Haven Mi- 405 Pm Edt Fri Oct 18 2019
Through early evening..South winds 10 to 15 knots. Sunny. Waves around 1 foot.
Tonight..South winds 10 to 20 knots. Mostly clear. Waves 1 to 3 feet.
Saturday..South winds 10 to 20 knots. Mostly Sunny. Waves 2 to 3 feet.
Saturday night..South winds 10 to 15 knots veering northwest 5 to 10 knots toward daybreak. Partly cloudy with a chance of rain showers. Waves around 1 foot.
Sunday..Northeast winds 5 to 10 knots. Sunny. Waves 1 foot or less.
Sunday night..East winds 5 to 15 knots veering southeast 15 to 20 knots after midnight. Mostly cloudy with a chance of rain showers. Waves 1 to 3 feet.
Monday..Southeast winds 20 to 25 knots veering south late in the day. Rain showers likely and a chance of Thunderstorms. Waves 3 to 6 feet.
Tuesday..West winds to 30 knots. Mostly cloudy with a chance of rain showers. Waves 7 to 10 feet.
Wednesday..West winds to 30 knots. Partly Sunny. Waves 6 to 8 feet.
LMZ846 Expires:201910190800;;907814 FZUS53 KGRR 182006 NSHGRR Nearshore Marine Forecast National Weather Service Grand Rapids MI 405 PM EDT Fri Oct 18 2019 For waters within five nautical miles of shore on Lake Michigan LMZ846-190800-


7 Day Forecast for Marine Location Near Holland, MI
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location: 42.77, -86.1     debug


Area Discussion for - Grand Rapids, MI
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Fxus63 kgrr 182336
afdgrr
area forecast discussion
national weather service grand rapids mi
736 pm edt Fri oct 18 2019
latest update...

aviation

Synopsis
Issued at 230 pm edt Fri oct 18 2019
- warmer weekend.

- potential prolonged wind event large waves along the lake shore
mon night tue.

- showers storms Monday.

Discussion (this evening through next Friday)
issued at 230 pm edt Fri oct 18 2019
the weekend is going to be fairly quiet wrt weather. High pressure
over michigan will slowly move east and south winds will develop.

Look for warmer temperatures to push north into SW lower Saturday
and even more so Sunday. We're looking at highs around 60 Saturday
and mid 60s Sunday with plenty of sunshine filtered through high
clouds.

Another fall storm is brewing, though, and will affect west michigan
Monday-Tuesday. Both the GFS and ECMWF have been fairly consistent
in showing this strong storm. A significant piece of energy will dig
southeast across the central rockies and will induce a low to
develop in the plains. The mild air ahead of the low combined with
the cold air behind it will produce a strong storm that will move
toward western lake superior by late Monday. An occluded front will
push through the CWA Monday. Ahead of it showers and thunderstorms
will develop. The bigger story will probably be the fairly strong
wind behind the front. ECMWF ensembles shows a 30-36 hr period of
wind in the 30-45 mph range; a couple of the ensembles are around 50
mph. The dense colder air behind the front will create large waves
and we'll be likely looking at more beach erosion and perhaps some
flooding along roads very close to the lake shore. As the low lifts
north across ontario, the wind will subside late Tuesday night and
Wednesday.

Another strong storm is possible late in the week. The ECMWF shows a
storm similar to the Monday storm and a similar track, however, the
gfs takes the storm south across the ohio valley. Highs for the
latter part of the week are expected in the lower 50s.

Aviation (for the 00z tafs through 00z Saturday evening)
issued at 734 pm edt Fri oct 18 2019
with high pressure in control of our weather providing the region
with a dry airmass... Conditions are expected to beVFR at the taf
sites. Overall the pressure gradient remains weak tonight so light
winds are predicted but a southeast flow of 5 to 15 knots is
forecasted for the warmer part of Saturday.

Marine
Issued at 230 pm edt Fri oct 18 2019
we issued a small craft advisory north of grand haven for late
tonight and Saturday. South wind will increase to 15 to 25 knots
tonight which will push waves to 3 to 5 feet. Wind and waves will
decrease late Saturday afternoon.

Much stronger winds... Most likely gales... Will develop Monday behind
a cold front and those strong winds will continue into Tuesday.

Grr watches warnings advisories
Mi... None.

Lm... Small craft advisory from 2 am to 8 pm edt Saturday for
lmz847>849.

Synopsis... 04
discussion... 04
aviation... Mjs
marine... 04


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
HLNM4 - 9087031 - Holland, MI 6 mi65 min E 1.9 G 2.9 51°F 56°F1014.6 hPa43°F
45029 13 mi29 min SSW 1.9 G 3.9 53°F 53°F1 ft1015.3 hPa43°F
SVNM4 - South Haven, MI 27 mi49 min ESE 2.9 G 2.9 54°F
45168 29 mi29 min NE 5.8 G 7.8 55°F 59°F1 ft1015.3 hPa40°F
45161 32 mi59 min 3.9 G 3.9 49°F 49°F1015.1 hPa (-1.4)
MKGM4 - Muskegon, MI 34 mi39 min S 4.1 G 5.1 49°F 1015.7 hPa40°F
SJOM4 - St. Joseph, MI 51 mi59 min Calm G 1 55°F 1015.2 hPa (-1.7)

Wind History for Holland, MI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Holland - West Michigan Regional Airport, MI1 mi66 minSE 510.00 miFair50°F39°F68%1016 hPa

Link to 5 minute data for KBIV

Wind History from BIV (wind in knots)
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Last 24hrN5N53NE3CalmCalmW3CalmCalmCalmE3CalmCalmCalmSE3SE56SE6--S7SE7S8S7SE5
1 day agoN9NW8NW7NW9
G16
N7N7N5N4N4N5N53N4N6N6N5N12
G18
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2 days agoSW6SW8W11
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N11
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G27

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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wmap_A
GEOS 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 Grand Rapids, MI (19,4,5,8)
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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.