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Marine Weather and Tides
Version 3.4 |
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 6:08AM | Sunset 9:16PM | Saturday May 27, 2017 5:47 AM EDT (09:47 UTC) | Moonrise 7:09AM | Moonset 10:22PM | Illumination 4% |  |
Marine Forecasts
EDIT (on/off) Help| 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
Hourly EDIT Helplocation: 43.96, -86.44 debug
Area Discussion for - Grand Rapids, MI
(on/off) Help NOTE: mouseover dotted underlined text for definition| 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
EDIT (on/off) Help NOTE: Click on distance to see the station location on a map| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
| LDTM4 - 9087023 - Ludington, MI | 1 mi | 48 min | E 1.9 G 2.9 | 51°F | 49°F | |||
| 45024 | 6 mi | 28 min | ESE 3.9 G 3.9 | 51°F | 49°F | 1013.1 hPa | 51°F | |
| BSBM4 - Big Sable Point, MI | 8 mi | 68 min | E 4.1 G 4.1 | 52°F | 1012.5 hPa | |||
| MEEM4 - Manistee Harbor, MI | 21 mi | 68 min | E 4.1 G 4.1 | 51°F | 1012.5 hPa |
Wind History for Ludington, MI
(wind in knots) EDIT (on/off) Help| 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | |
| Last 24hr | N | NE | -- | E | W | W G10 | W | W | W G8 | W G8 | NW G8 | W G9 | NW G8 | W G8 | W | SW | E | NE | -- | W | -- | SE | NE | E |
| 1 day ago | N | N G6 | NE G11 | NE G10 | N G13 | NE G10 | N G11 | N G11 | N G11 | NW G10 | NW G9 | NW G12 | N G11 | N G11 | N G13 | N G9 | N | N | N | N | NE | NW | NW | NW |
| 2 days ago | E | E | NE | NE G6 | NE | NE G7 | NE G8 | N G5 | N G10 | N G11 | N G14 | N G14 | N G14 | NE G10 | NE G8 | NE | NE | NE | NE | NE | NE | NE G7 | N | N G6 |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Ludington, Mason County Airport, MI | 2 mi | 53 min | N 0 | 7.00 mi | Overcast | 48°F | 48°F | 100% | 1011.8 hPa |
| Manistee, Manistee County-Blacker Airport, MI | 24 mi | 53 min | E 3 | 2.50 mi | Fog/Mist | 45°F | 44°F | 97% | 1014 hPa |
Wind History from LDM (wind in knots)
| 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | |
| Last 24hr | Calm | Calm | E | Calm | Calm | SW | W | W | W | W | W | W | W | SW | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm |
| 1 day ago | N | N | N | NE G14 | NE | N | N | N G15 | N | N G15 | N G16 | NW | N G16 | N | N | N | N | N | N | Calm | Calm | NW | Calm | Calm |
| 2 days ago | Calm | Calm | NE | Calm | NE | N | N | N | N | N | N G16 | N | N | N | N | NE | N | N | N |
Tide / Current Tables for
EDIT RT Ports Option Weekend mode (on/off) (on/off) HelpTide / Current Tables for
EDIT (on/off) HelpWeather Map and Satellite Images
(on/off) HelpWeather Map | IR Satellite Image from GEOS GOES Local Image of GreatLakes EDIT  |
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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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. |