Saturday, May27, 2017 L-36.com


Marine Weather and Tides
Ludington, MI

Version 3.4
What's New / NOTES
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 6:08AMSunset 9:16PM Saturday May 27, 2017 5:47 AM EDT (09:47 UTC) Moonrise 7:09AMMoonset 10:22PM Illumination 4% Phase: Waxing Crescent; Moon at 2 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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LMZ849 Pentwater To Manistee Mi- 359 Am Edt Sat May 27 2017
Today..South winds around 5 knots veering southwest. Mostly Sunny. Waves 1 foot or less.
Tonight..Southeast winds 5 to 10 knots. Partly cloudy in the evening, then mostly cloudy with a chance of showers overnight. Waves 1 foot or less.
Sunday..Southeast winds around 10 knots backing north. Showers and Thunderstorms likely until midday, then a chance of showers and Thunderstorms in the afternoon. Waves 1 foot or less.
Sunday night..Northwest winds around 10 knots backing southwest after midnight. Partly cloudy with a chance of showers. Waves 1 to 3 feet.
LMZ849 Expires:201705271515;;273556 FZUS53 KGRR 270759 NSHGRR NEARSHORE MARINE FORECAST NATIONAL WEATHER SERVICE GRAND RAPIDS MI 359 AM EDT SAT MAY 27 2017 FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN LMZ849-271515-

7 Day Forecast for Marine Location Near Ludington, MI
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location: 43.96, -86.44     debug


Area Discussion for - Grand Rapids, MI
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Fxus63 kgrr 270748 cca
afdgrr
area forecast discussion
national weather service grand rapids mi
330 am edt Sat may 27 2017
latest update...

synopsis short term long term marine

Synopsis
Issued at 330 am edt Sat may 27 2017
an area of low pressure will move from central illinois tonight
through southern portions of the lower peninsula on Sunday. Today
and tonight will be fairly dry with increasing chances for
precipitation on Sunday. Showers and thunderstorms will accompany
the passage of the low on Sunday. Some of the storms could be on the
strong side on Sunday. Rain showers remain in the forecast for
memorial day as an upper low moves toward the region. Not a wash out
of a holiday weekend, but we will see some rain. The driest day will
likely be today with the wettest occurring on Sunday. Highs will be
near normal for this time of year.

Short term (today through Monday)
issued at 330 am edt Sat may 27 2017
main focus in the forecast was on chances for precipitation,
beginning late tonight and persisting into Monday.

Shortwave ridging should keep us dry for the most part today after
some patches of light rain exit southern lower michigan this
morning. Much of tonight will be dry as well with a low slowly
moving our direction from the mid mississippi valley. Some light
rain showers are forecast by some of the short range models to be
pushing into western lower michigan around 12z on Sunday.

All of the models move a low through southern portions of the state
on Sunday. Sunday looks to be our best chance for rain with multiple
upper shortwave's affecting our area. Both showers and thunderstorms
look likely with convection allowing models like the 3kmnam showing
mucape values of 1000-2000 j kg. Simulated reflectivity shows rounds
of showers storms. 0-6km bulk shear values via the nam12 are
forecast to be in the 40-50kt range so organized storms with the
threat of some severe weather exists.

Sunday night and Monday an upstream upper low gradually works our
direction with some diurnal showers anticipated. So, showers will be
more prevalent on Monday with Sunday night forecast to be fairly
dry.

A cooling trend will be noted through the holiday weekend, with the
warmest day being today. Highs will reach the mid to upper 70s
today, cooling to around 70 on memorial day.

Long term (Monday night through Friday)
issued at 330 am edt Sat may 27 2017
seasonably cool and unsettled wx will continue Monday night through
midweek with scattered rain showers through Wednesday with the upper
trough axis in place over the great lakes region.

Showers will be enhanced from time to time by several shortwaves
that will rotate around the base of the trough axis. These diurnal
showers will be most prevalent during the afternoon and evening
hours.

Fair wx will finally return late in the week as the upper trough
axis moves east of our region and a sfc high pressure ridge builds
in. Temps by Thursday and Friday will return to near normal for this
time of year with high temps in the lower to perhaps middle 70's and
mins mainly in the 40's to lower 50's.

Aviation (for the 06z tafs through 06z Saturday night)
issued at 1137 pm edt Fri may 26 2017
vfr conditions will continue at all the terminals through the next
24 hours. Lingering light rain showers and sprinkles at our
southern terminals at the moment will gradually taper off during
the early morning hours Saturday.

Vfr conditions will then continue Saturday with sct-bkn fair wx
cumulus development during the late morning and afternoon hours.

Winds will be out of the southeast at around 5-10 kts Saturday
except at kmkg where winds will shift to the southwest to west at
around 10 kts by midday.

Marine
Issued at 330 am edt Sat may 27 2017
a slack gradient will be in place today resulting in light winds and
limited waves out on lake michigan. Tonight into Sunday a low will
move through the southern great lakes with a veering wind from
southeast to southwest between this evening and Sunday evening. The
expectation is that winds and waves will remain below small craft
advisory criteria during these two forecast periods as well. Sunday
night and especially into Monday, winds and waves will pick up and a
sca may be needed for Monday. Southwest winds of 15-25 knots are
possible on Monday.

Hydrology
Issued at 217 pm edt Fri may 26 2017
river levels in the upper grand and the kalamazoo basins are
running above normal for late may while elsewhere the levels are
closer to normal. Rain totals generally under a half inch in
southern michigan Friday night, then across much of the area on
Sunday, will likely not be enough to produce flooding.

Grr watches warnings advisories
Mi... None.

Lm... None.

Synopsis... Duke
short term... Duke
long term... Laurens
aviation... Laurens
hydrology... Cas
marine... Duke


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LDTM4 - 9087023 - Ludington, MI 1 mi48 min E 1.9 G 2.9 51°F 49°F
45024 6 mi28 min ESE 3.9 G 3.9 51°F 49°F1013.1 hPa51°F
BSBM4 - Big Sable Point, MI 8 mi68 min E 4.1 G 4.1 52°F 1012.5 hPa
MEEM4 - Manistee Harbor, MI 21 mi68 min E 4.1 G 4.1 51°F 1012.5 hPa

Wind History for Ludington, MI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ludington, Mason County Airport, MI2 mi53 minN 07.00 miOvercast48°F48°F100%1011.8 hPa
Manistee, Manistee County-Blacker Airport, MI24 mi53 minE 32.50 miFog/Mist45°F44°F97%1014 hPa

Wind History from LDM (wind in knots)
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Last 24hrCalmCalmE3CalmCalmSW8W5W4W6W6W5W4W3SW8CalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
1 day agoN7N6N6NE5
G14
NE10N7N9N8
G15
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N12
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NW13N11
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N10N10N4N4N4N3CalmCalmNW3CalmCalm
2 days agoCalmCalmNE4CalmNE4N6N4N6N8N8N12
G16
N11N9N6N4NE4----------N4N4N4

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 (5,6,7,8)
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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.