Friday, January19, 2018 L-36.com


Marine Weather and Tides
Ferrysburg, MI

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 8:09AMSunset 5:42PM Friday January 19, 2018 6:28 AM EST (11:28 UTC) Moonrise 9:41AMMoonset 8:20PM Illumination 7% Phase: Waxing Crescent; Moon at 3 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- 1107 Pm Est Mon Jan 15 2018
Rest of tonight..Northeast winds 5 to 15 knots. Snow. Waves 1 to 2 feet.
Tuesday..Northeast winds 5 to 10 knots backing north, then increasing to 10 to 20 knots late in the day. Mostly cloudy with a chance of snow showers. Waves calm.
Tuesday night..North winds 5 to 15 knots becoming west 15 to 25 knots toward daybreak. Snow showers likely in the evening, then a chance of snow showers overnight. Waves calm.
Wednesday..West winds to 30 knots backing southwest gales to 35 knots late in the day. Partly Sunny. A slight chance of snow showers until midday. Waves calm. Waves are for ice free areas. This is the last nearshore marine forecast (nshgrr) issuance for the season. The nshgrr will again be issued around april 1st 2018, or as conditions warrant.
LMZ846 Expires:201801161015;;514452 FZUS53 KGRR 160407 NSHGRR Nearshore Marine Forecast National Weather Service Grand Rapids MI 1107 PM EST Mon Jan 15 2018 For waters within five nautical miles of shore on Lake Michigan LMZ846-161015-

7 Day Forecast for Marine Location Near Ferrysburg, MI
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location: 43.09, -86.23     debug


Area Discussion for - Grand Rapids, MI
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Fxus63 kgrr 190758
afdgrr
area forecast discussion
national weather service grand rapids mi
258 am est Fri jan 19 2018
latest update...

synopsis short term long term

Synopsis
Issued at 258 am est Fri jan 19 2018
fair weather with moderating temperatures will continue into
Saturday then rain will move in on Sunday and Monday. Colder air
with snow and snow showers will arrive Monday night into
Wednesday.

Short term (today through Sunday)
issued at 258 am est Fri jan 19 2018
forecast issues are for timing and p-type early Sunday as area of
isentropic ascent and deeper moisture advecting in from the south
brings the chance patchy freezing rain at the outset. Temps and
dew points are at or near freezing across the southern zones
around midnight when the precip is expected to begin so there
could be a brief period of fzra and this is mentioned in the
forecast.

Model soundings also show the potential for some snow across the
northern tier, especially the higher elevations into Sunday
afternoon before the column GOES above freezing with all liquid
expected by late afternoon and evening.

Long term (Sunday night through Thursday)
issued at 258 am est Fri jan 19 2018
strong isentropic upglide and increasing moisture north of the warm
front will result in widespread rain showers Sunday night. Rain will
continue Monday as the strong low pressure system moves northeast
into the great lakes region.

Patchy fog is also expected due to the high boundary layer moisture
and melting of any lingering snow cover. It is not completely out of
the question that a few thunderstorms may develop along and just
ahead of the sfc low cold front. We left it out of the fcst at this
time mainly due to weak instability.

Colder air will move in on the back side of the departing system and
in conjunction with wrap around moisture behind the departing low
will cause rain showers to change over to snow showers Monday night.

Snow showers will continue Tuesday with potential for light
accumulations of around 1 to 3 inches as suggested by a consensus of
latest medium range guidance.

A high pressure ridge will then build in from the west and bring
fair wx Wednesday and Thursday. Temperatures will average near
normal for this time of year Tuesday through Thursday.

Aviation (for the 06z tafs through 06z Friday night)
issued at 1120 pm est Thu jan 18 2018
vfr conditions will continue through Friday evening. Southwest
winds will stay up around 10-15 kts overnight and then will ramp
up to 15 to 20 kts with gusts to near 25 kts Friday morning
through Friday evening.

Hydrology
Issued at 302 pm est Thu jan 18 2018
the latest update from the muskegon river ice jam in mecosta county
is that slow improvement continues. Chunks of ice remain in the
river, but are stable at this point with slowly falling river
levels. Minor flooding is ongoing immediately along the river bank
in low lying areas.

A warming trend through the weekend will result in snowmelt.

Existing snow depths generally contain 0.2" to 0.5" of liquid.

Precipitation amounts of 0.5" to 1.00" are possible through early
Tuesday. This will most certainly lead to some rising rivers with
minor flooding possible next week, especially on smaller streams.

Highs in the 40s and lows in the mid-20s to around 30 degrees may
not be quite warm enough to drastically weak ice on all rivers. This
may mitigate some of the impact. However, ice jams are nearly
unpredictable. Residents living near rivers in flood prone areas
should remain vigilant late this weekend and next week should ice
jams develop.

Grr watches warnings advisories
Mi... None.

Lm... None.

Synopsis... Ostuno
short term... Ostuno
long term... Laurens
aviation... Laurens
hydrology... Jam


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MKGM4 - Muskegon, MI 11 mi29 min W 18 G 20 33°F 1012.6 hPa (-1.1)26°F
HLNM4 - 9087031 - Holland, MI 22 mi41 min SSW 14 G 18 1011.6 hPa
SVNM4 - South Haven, MI 48 mi29 min S 12 G 14 28°F
LDTM4 - 9087023 - Ludington, MI 60 mi41 min WSW 5.1 G 9.9 32°F 25°F

Wind History for Holland, MI
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G14

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Muskegon, Muskegon County Airport, MI7 mi34 minSW 15 G 2210.00 miFair34°F24°F67%1011.9 hPa
Holland - West Michigan Regional Airport, MI24 mi36 minWSW 15 G 2210.00 miFair32°F25°F75%1012.8 hPa

Wind History from MKG (wind in knots)
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1 day agoW10W14
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G34
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W15
G21
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G23
2 days agoE3N5NE3N5E3N4S3CalmSW6NW8N9N12N8N8NE5N4CalmCalmCalmS5S5S4CalmW11
G18

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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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of GreatLakes    EDIT
Geos

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.