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Marine Weather and Tides
Version 3.4 |
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 6:30AM | Sunset 9:12PM | Friday July 28, 2017 9:05 AM EDT (13:05 UTC) | Moonrise 11:22AM | Moonset 11:22PM | Illumination 24% |  |
Marine Forecasts
EDIT (on/off) Help| LMZ849 Pentwater To Manistee Mi- 304 Am Edt Fri Jul 28 2017 Today..North winds 10 to 20 knots. Sunny. Waves 1 to 3 feet building to 2 to 4 feet late in the day. Tonight..Northeast winds 10 to 20 knots decreasing to 5 to 10 knots after midnight. Clear. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. Saturday..North winds 10 to 20 knots. Sunny. Waves 1 to 2 feet. Saturday night..North winds 5 to 15 knots. Clear. Waves 1 to 2 feet. | LMZ849 Expires:201707281515;;946312 FZUS53 KGRR 280704 NSHGRR Nearshore Marine Forecast National Weather Service Grand Rapids MI 304 AM EDT Fri Jul 28 2017 For waters within five nautical miles of shore on Lake Michigan LMZ849-281515- |
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 281136 afdgrr area forecast discussion national weather service grand rapids mi 736 am edt Fri jul 28 2017 latest update... aviation Synopsis Issued at 317 am edt Fri jul 28 2017 a few showers are possible this afternoon then fair and dry weather will rule over the weekend as high pressure from canada dominates the weather into early next week. Short term (today through Sunday) issued at 317 am edt Fri jul 28 2017 only forecast issue in the near term is for pops today as upper low passes through and steepening lapse rates could touch off a few showers and storms from late morning through the afternoon. The mesoscale models show scattered showers developing this morning across northern lower michigan and drifting southwest through the afternoon. So the area of pops for today has been expanded from the eastern zones into the central and western forecast area. The upper low dives southeast with heights rebounding this evening and showers should also die off quickly due to this and the loss of diurnal instability. The rest of the forecast period looks dry and comfortable as upper heights rise and canadian surface high builds into the central great lakes. Long term (Sunday night through Thursday) issued at 317 am edt Fri jul 28 2017 high pressure will continue to dominate the wx pattern Sunday night and for the early to middle portion of next week bringing fair wx with seasonable temps. A slow moving frontal boundary will bring potential for a few showers and thunderstorms Wednesday through Wednesday night into early Thursday. However moisture with this system looks quite limited and significant rainfall is not anticipated. |
Another ridge of high pressure will build in behind that system and bring fair wx Friday into next weekend. Temperatures will continue to average rather close to normal through the long range fcst period. Aviation (for the 12z tafs through 12z Saturday morning) issued at 736 am edt Fri jul 28 2017 vfr conditions will prevail through Saturday afternoon. Some isolated showers and thunderstorms are possible this afternoon but the chances are low enough to leave out of the forecast for now. Northeast winds will gust to near 20 knots this afternoon then decrease below 10 knots overnight. Marine Issued at 317 am edt Fri jul 28 2017 winds and waves will increase today. Big and little sable points will once again see waves near 4 feet in northerly flow as will the nearshore waters near and south of south haven. Hydrology Issued at 100 pm edt Thu jul 27 2017 one to two inches of rain fell across a fair portion of central michigan (along the us-10 and m-20 corridors) Wed and Wed night. Given the mostly dry conditions over the last two or three weeks, this rain was effectively captured by the soil and river rises will be limited. The chance for substantial rainfall over the next week is very low. Grr watches warnings advisories Mi... None. Lm... None. Synopsis... Ostuno short term... Ostuno long term... Laurens aviation... Ostuno hydrology... Cas marine... Ostuno |
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 | 47 min | ENE 5.1 G 7 | 64°F | 56°F | |||
| 45024 | 6 mi | 35 min | NNE 7.8 G 9.7 | 66°F | 66°F | 2 ft | 1017.2 hPa | 60°F |
| BSBM4 - Big Sable Point, MI | 8 mi | 85 min | NNE 8.9 G 9.9 | 65°F | 1017.6 hPa | |||
| MEEM4 - Manistee Harbor, MI | 21 mi | 85 min | E 2.9 G 6 | 66°F | 1017.3 hPa |
Wind History for Ludington, MI
(wind in knots) EDIT (on/off) Help| 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 | 7 AM | 8 AM | |
| Last 24hr | NE G8 | NE G9 | NE G9 | NE G11 | N G11 | NW G11 | NW G12 | N G11 | N G15 | N G15 | N G12 | N G10 | N | N G8 | NE | N G6 | NE G8 | E | NE | NE | NE G6 | E | NW | NE |
| 1 day ago | SW G17 | S G17 | SW G17 | S G18 | SW G12 | S G14 | SW G11 | S | SW G13 | S G9 | S G16 | S G12 | S G4 | S | SW | SW G11 | SW G7 | NE | S | E | E | N | E | NE |
| 2 days ago | SE | SW G9 | W | SW G7 | SW G12 | SW G12 | SW G11 | SW G13 | SW G11 | SW G12 | SW G6 | SW G10 | S G11 | S G11 | SW G10 | S G15 | SE | S G9 | S G13 | S G13 | S G13 | S G15 | S G12 | S G16 |
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 | 70 min | NE 4 | 10.00 mi | Partly Cloudy | 60°F | 58°F | 93% | 1016.9 hPa |
| Manistee County - Blacker Airport, MI | 24 mi | 69 min | ENE 5 | 10.00 mi | Fair | 64°F | 59°F | 84% | 1018.4 hPa |
Wind History from LDM (wind in knots)
| 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 | 7 AM | 8 AM | 9 AM | |
| Last 24hr | NE | NE | NE | N G14 | NE | N | N G16 | N | N G15 | N G16 | N G15 | N | N | N | N | N | N | Calm | Calm | N | NE | Calm | N | NE |
| 1 day ago | S G15 | S G17 | SW G21 | SW | S | S | SW | SW | S | S | SW | S | S | Calm | W | SW | Calm | SW | Calm | Calm | Calm | Calm | N | Calm |
| 2 days ago | S | S | S | SW | SW | SW G16 | SW G18 | SW G15 | SW | S | S | SW | S | S | SW | SW | S | S | SE | S | S | S | S | S G17 |
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 (9,2,3,4)
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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. |