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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 6:41AM | Sunset 6:42PM | Monday September 25, 2017 5:23 PM CDT (22:23 UTC) | Moonrise 11:57AM | Moonset 9:53PM | Illumination 27% |  |
Marine Forecasts
EDIT (on/off) Help| LMZ364 Lake Michigan From Seul Choix Point To Rock Island Passage 5 Nm Offshore To Mid Lake- Lake Michigan South Of A Line From Seul Choix Point To The Mackinac Bridge And North Of A Line From Charlevoix Mi To South Fox Island 5 Nm Offshore- Lake Michigan From Charlevoix To Point Betsie Mi 5 Nm Offshore To Mid Lake- Lake Michigan From Point Betsie To Manistee Mi 5 Nm Offshore To Mid Lake- Lake Michigan From Rock Island Passage To Sturgeon Bay Wi- Lake Michigan From Sturgeon Bay To Two Rivers Wi 5 Nm Offshore To Mid Lake- Lake Michigan From Two Rivers To Sheboygan Wi 5 Nm Offshore To Mid Lake- Lake Michigan From Pentwater To Manistee Mi 5 Nm Offshore To Mid Lake- 249 Pm Cdt Mon Sep 25 2017 Sheboygan Wi To Pentwater Mi North... Tonight..South winds 10 to 15 kt becoming southeast. Waves 1 to 2 ft. Tuesday..South winds 10 to 20 kt becoming southwest. Chance of showers and Thunderstorms in the afternoon. Waves 1 to 3 ft. Tuesday night..Southwest winds 10 to 20 kt becoming northwest 15 to 25 kt. Chance of showers in the evening. Waves 2 to 4 ft building to 3 to 5 ft. Wednesday..Northwest winds 15 to 25 kt. Waves 3 to 5 ft. Wednesday night..Northwest winds 10 to 20 kt. Waves subsiding to 2 to 4 ft. Thursday..West winds 10 to 20 kt increasing to 15 to 25 kt. Chance of showers in the afternoon. Waves 2 to 4 ft. Thursday night..Northwest winds 10 to 20 kt increasing to 30 kt overnight. Chance of showers. Waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft. Friday..North winds to 30 kt. Chance of showers. Waves 6 to 9 ft occasionally to 12 ft building to 7 to 10 ft occasionally to 13 ft. Saturday..Northeast winds 10 to 15 kt veering to east 5 to 10 kt. Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. | LMZ364 Expires:201709260330;;922687 FZUS63 KLOT 251949 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Chicago/Romeoville IL 249 PM CDT Mon Sep 25 2017 FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON Lake Michigan. Waves are provided as a range of significant wave heights, which is the average of the highest 1/3 of the wave, along with the average height of the highest 10% of the waves which will occasionally be encountered. .SYNOPSIS...Low pressure of 29.8 inches over eastern Iowa will move to Lake Superior on Tuesday...trailing a cold front across the lake late Tuesday afternoon and evening. The low will then deepen to 29.6 inches as it pulls away into western Quebec by early Wednesday. High pressure of 30.2 inches will spread slowly east from the Plains Wednesday...with weaker ridging of 30.1 inches extending across southern Lake Michigan by early Thursday. Low pressure of 29.9 inches will pass just northeast of the Lakes by early Friday...with another cold front pushing across the lake. High pressure of 30.4 inches will build across the western Lakes Saturday. LMZ261-362-364-366-563-565-567-868-260330- |
7 Day Forecast for Marine Location Near Glen Arbor, MI
Hourly EDIT Helplocation: 45.02, -86.12 debug
Area Discussion for - Gaylord, MI
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus63 kapx 251934 afdapx area forecast discussion national weather service gaylord mi 334 pm edt Mon sep 25 2017 Near term (tonight through Tuesday) issued at 316 pm edt Mon sep 25 2017 Still hot Tuesday... high pressure will hold on for a little bit longer across northern michigan bringing more unseasonably warm conditions through Tuesday. Perhaps some patchy fog out there again tonight, otherwise mostly clear skies expected. More record high temperatures will likely be broken or challenged Tuesday... Especially at glr, tvc and pln. An approaching cold front will result in low end shower or thunderstorm chances later Tuesday afternoon across far western sections of the forecast area (though there isn't a lot of CAPE to work with per model soundings). Lows tonight in the middle 50s to lower 60s. Highs Tuesday ranging from the lower 80s north to the upper 80s south. Short term (Tuesday night through Thursday) issued at 316 pm edt Mon sep 25 2017 Snapping back to autumn reality... high impact weather potential... Slight chance of a thunderstorm or two Tuesday evening. Pattern synopsis forecast... Flattening upper ridge quickly erodes as it gets shunted east Tuesday evening. An open mid-level wave lifting through ontario and a corresponding surface low tracking through lake superior will push a potent cold front through northern michigan Tuesday night. This front will usher in a sharply colder airmass with temperatures running a good 20+ degrees cooler than the current warm stretch (but near normal for late september). Broad upper troughing will then remain overhead through Thursday, despite a surface ridge nosing into northern michigan from Wednesday through Thursday morning. Primary forecast concerns... Chance for a bit of much needed rainfall for some locations Tuesday night into early Wednesday. Still looking like a decent chance for a bit of rainfall with the cold front's passage Tuesday night. However, not all of northern michigan is expected to see scattered showers, and those that do (mainly eastern upper and tip of the mitt) will likely not receive much (less than a quarter inch). Models continue to show a ribbon of higher pwats ahead of the front, but that is mainly tied to the anomalous surface dewpoints initially in the lower 60s (but dropping quickly behind the front). Forecast soundings actually reveal the depth of moisture is not too great and doesn't last for more than a few hours before the column begins drying out in the mid levels. Forcing along the front and from the shortwave, though not particularly strong, looks better supported near and north of the straits. Very marginal instability along and ahead of the front, perhaps enough to support just a few rumbles of thunder through around midnight. |
Perhaps a lingering shower or two over eastern upper Wednesday morning, but otherwise clouds should gradually thin out, giving way to partly sunny skies as high pressure ridge noses into the area. Clouds will gradually increase on Thursday ahead of the next shortwave and a reinforcing cold front dropping in from the northwest. This will lead to an increasing chance of showers heading into Thursday night. Long term (Thursday night through Monday) issued at 316 pm edt Mon sep 25 2017 as maria continues to lift off over the atlantic, the downstream blockiness will wane allowing a much more progressive pattern over the CONUS than we have seen the past few days. The troughing that has been persistent over the western CONUS will begin working into the region by mid-week and continue into the weekend. This will get temperatures closer to normal levels, perhaps even a bit below normal by Friday. H8 temperatures could be sufficiently cold enough to drive some lake effect rain showers starting Thursday night and through the day Friday. High pressure will again build into the region over the weekend, with temperatures rising through the weekend and into the beginning of next week when we could see some areas nearing 70 degrees again, about 10 degrees above normal but not to the extent we are currently experiencing. Aviation (for the 18z tafs through 18z Tuesday afternoon) issued at 126 pm edt Mon sep 25 2017 the large upper level ridge will remain across the region through much of Tuesday. A cold front will cross the region Tuesday night. Very warm conditions will continue through the TAF period. Just a few CU today... With an outside chance of a storm this afternoon near apn due to a breeze off of lake huron. Otherwise, no issues anticipated except for any patchy fog that may develop late tonight early Tuesday. Marine Issued at 316 pm edt Mon sep 25 2017 winds and waves will remain below SCA criteria thru Tuesday as high pressure moves slowly off to our east. Chances of precip will increase later Tuesday into Tuesday night as a cold front sweeps across michigan. Northwest winds will increase late Tuesday night into Wednesday behind the front with SCA gusts possible on some nearshore zones. Apx watches warnings advisories Mi... None. Lh... None. Lm... None. Ls... None. Near term... As short term... Mk long term... Am aviation... As marine... As |
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 |
| 45002 - N MICHIGAN- Halfway between North Manitou and Washington Islands. | 27 mi | 94 min | S 5.8 G 7.8 | 70°F | 68°F | 1 ft | 1014.5 hPa (-1.4) | |
| GTLM4 - Grand Traverse Light, MI | 33 mi | 44 min | Calm G 5.1 | 80°F | 1014.6 hPa | |||
| NPDW3 - Northport Pier at Death's Door WI | 49 mi | 44 min | SSE 7 G 11 | 77°F | 1013.2 hPa | |||
| FPTM4 - Fairport, MI | 50 mi | 44 min | SE 2.9 G 4.1 | 72°F | 1013.5 hPa |
Wind History for Port Inland, MI
(wind in knots) EDIT (on/off) Help| 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 | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | |
| Last 24hr | SE | SE | E | E | SE | SE | S | -- | SE | W | W | S | SE G4 | SE | S | SE | SW | SE | SE | S | S | SE | SE | SE |
| 1 day ago | SW | SW G12 | SW | SW | SW | SW | SW | SE | E | SE | E | SE | SE | E | E | E | E | SE | SE | SE | S | S | SE | E |
| 2 days ago | SE G15 | SW | NE | E | SE | E G10 | E | E | SE G12 | E | SE | S | SE | SW | SW | SW | SW | SW | SW | SW G11 | SW | W | SW | SW |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Frankfort, Frankfort Dow Memorial Field Airport, MI | 28 mi | 28 min | WSW 3 | 10.00 mi | Fair | 80°F | 61°F | 54% | 1014.2 hPa |
Wind History from FKS (wind in knots)
| 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 | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | |
| Last 24hr | S | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | S | W | SW | W | W | W | SW |
| 1 day ago | Calm | S | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | S | SW | SW | SW | W | SW | SW |
| 2 days ago | NE | Calm | Calm | Calm | Calm | Calm | SE | Calm | S G14 | Calm | S | S | S | S | SW | Calm | S | S | SW | SW | SW G14 | SW | S | SW |
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 Gaylord, MI (18,4,5,8)
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Ground Weather Radar Station Gaylord, 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. |