Monday, October14, 2019 L-36.com


Marine Weather and Tides
Delton, 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 7:52AMSunset 7:04PM Monday October 14, 2019 6:39 AM EDT (10:39 UTC) Moonrise 6:51PMMoonset 7:24AM Illumination 100% Phase: Full Moon; Moon at 15 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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LMZ845 South Haven To Holland Mi- 405 Am Edt Mon Oct 14 2019
.small craft advisory in effect until 4 pm edt this afternoon...
Early this morning..West winds 15 to 20 knots. Partly cloudy. A chance of waterspouts. Waves 4 to 6 feet.
Today..West winds 10 to 20 knots. Mostly Sunny. Waves 3 to 5 feet.
Tonight..Southwest winds 10 to 20 knots backing south after midnight. Mostly clear. Waves 1 to 3 feet.
Tuesday..South winds 15 to 25 knots veering southwest late in the day. Rain showers likely and a slight chance of Thunderstorms. Waves 1 to 3 feet building to 4 to 6 feet.
Tuesday night..West winds to 30 knots. Rain showers likely. Waves 5 to 7 feet building to 6 to 9 feet toward daybreak.
Wednesday..Northwest gales to 35 knots. Mostly cloudy with a chance of rain showers. Waves 8 to 12 feet.
Thursday..Northwest winds 15 to 20 knots decreasing to 5 to 15 knots late in the day. Mostly Sunny. Waves 4 to 6 feet.
Friday..South winds 10 to 20 knots. Partly Sunny. Waves 2 to 3 feet.
LMZ845 Expires:201910142000;;684970 FZUS53 KGRR 140805 NSHGRR Nearshore Marine Forecast National Weather Service Grand Rapids MI 405 AM EDT Mon Oct 14 2019 For waters within five nautical miles of shore on Lake Michigan LMZ845-142000-


7 Day Forecast for Marine Location Near Delton CDP, MI
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location: 42.49, -85.43     debug


Area Discussion for - Grand Rapids, MI
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Fxus63 kgrr 140719
afdgrr
area forecast discussion
national weather service grand rapids mi
319 am edt Mon oct 14 2019
latest update...

synopsis discussion marine

Synopsis
Issued at 308 am edt Mon oct 14 2019
-areas of frost Tuesday morning with rain arriving during the day
-blustery with lake effect rain showers Wednesday
-dry period from Thursday into at least Friday
-unsettled weather possible especially toward the end of the
weekend into early next week

Discussion (today through next Sunday)
issued at 308 am edt Mon oct 14 2019
our next risk for rain will arrive on Tuesday as an area of low
pressure steadily deepens as it moves from central wi to lake huron.

The more favorable upper level jet divergence will be located across
the u.P. And northern lower mi with this system. With the h850 low
moving across northern wi northern lower mi it makes sense that the
heavier precipitation will be north of our region. There is a small
window where we could get some rumbles of thunder 18z Tue through
00z Wed as shown by projected MUCAPE by the medium range guidance.

Otherwise, rain showers can be expected at times Tuesday afternoon
and evening especially. Wrap-around lake effect rain showers and
blustery conditions are expected Wednesday as the low deepens into
the mid 990s over lake huron. In other words, very october-like.

Prior to this system's arrival, frost is looking like a possibility
Tuesday morning away from the lakeshore. Some subfreezing
temperatures are not out of the question across interior central
lower mi. The next threat for frost would occur Friday morning.

Medium range deterministic guidance and respective ensemble members
(ecm GEFS geps) suggest a mild and wet pattern is possible across
the great lakes toward the end of this weekend and into early next
week. Too soon to talk specific amounts of rain but the upper level
pattern (deep southwest flow with an open feed of gulf moisture
potentially) would support anomalously high precipitable water
values.

Aviation (for the 06z tafs through 06z Monday night)
issued at 127 am edt Mon oct 14 2019
no real aviation hazards expected for the next 24 hours withVFR
holding in place. Not impossible that some ceilings could
occasionally come down to near 3000 ft as has been observed across
northern lower michigan, but would not expect this to be a
dominant condition, and the main threat would be into the early
Monday morning hours.

Marine
Issued at 308 am edt Mon oct 14 2019
will continue the SCA as is, but there is potential for an earlier
cancellation depending on how quickly the winds waves settle down.

The reprieve will be brief, however, with winds picking up Tuesday
(s SW flow event) and waves reaching 4 to 7 ft mainly north of
grand haven. Conditions worsen Wednesday (nw flow event) with
lakeshore-eroding waves of 7 to 11 ft once again battering much
of our coastline.

Grr watches warnings advisories
Mi... Frost advisory from 2 am to 8 am edt Tuesday for miz037>040-
043>046-050>052-056>059-064>067-071>074.

Lm... Small craft advisory until 4 pm edt this afternoon for
lmz844>849.

Synopsis... Hoving
discussion... Hoving
aviation... Hoving
marine... Hoving


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
HLNM4 - 9087031 - Holland, MI 46 mi58 min W 19 G 22 46°F 1013.3 hPa35°F
SVNM4 - South Haven, MI 46 mi40 min W 15 G 19 46°F
45168 48 mi40 min WSW 16 G 21 47°F 59°F5 ft1015.5 hPa (+1.3)33°F
SJOM4 - St. Joseph, MI 63 mi40 min W 16 G 20 47°F 1016.3 hPa (+2.1)
MKGM4 - Muskegon, MI 70 mi40 min NW 16 G 19 46°F 1014.6 hPa (+1.4)36°F

Wind History for Holland, MI
(wind in knots)    EDIT      (on/off)   Help
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SW20
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G29

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
W K Kellogg Airport, MI16 mi47 minWSW 710.00 miOvercast42°F33°F71%1014.6 hPa
Kalamazoo/Battle Creek International Airport, MI18 mi47 minWSW 710.00 miOvercast44°F32°F63%1014.9 hPa

Link to 5 minute data for KBTL

Wind History from BTL (wind in knots)
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Last 24hrS12SW11SW13SW15SW16
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NW11NW8NW5W5SW6W7W10W7W7W7W8SW6SW7
1 day agoSW10SW10SW10
G18
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S11S12S12
2 days agoSE11SE8SE11SE9SE8SE9SE11
G18
SE9SE11S11SW10W12
G17
W12
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G21
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W12W11W13
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W12W9SW13W9SW10SW12

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 (6,6,7,8)
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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.