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Marine Weather and Tides
Version 3.4 |
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports. 6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen |
| Sunrise 6:48AM | Sunset 8:30PM | Monday August 26, 2019 4:58 AM EDT (08:58 UTC) | Moonrise 1:10AM | Moonset 5:02PM | Illumination 18% |  |
LMZ342 Norwood Mi To 5nm West Of Mackinac Bridge Including Little Traverse Bay- 415 Am Edt Mon Aug 26 2019
.small craft advisory in effect from this evening through late Tuesday night...
Today..Southeast wind 10 to 15 knots with gusts to around 20 knots. Slight chance of showers in the morning. Chance of showers in the afternoon. Waves 2 feet or less.
Tonight..Southeast wind 15 to 25 knots with gusts to around 30 knots. Showers and slight chance of Thunderstorms. Waves 2 to 4 feet.
Tuesday..Southwest wind 10 to 20 knots with gusts to around 30 knots. Chance of showers. Waves 2 to 4 feet.
Tuesday night..Southwest wind 10 to 20 knots with gusts to around 30 knots. Mostly clear. Waves 2 to 4 feet. Winds and waves higher in the vicinity of Thunderstorms. SEe the open lakes forecast for days 3 through 5.
.small craft advisory in effect from this evening through late Tuesday night...
Today..Southeast wind 10 to 15 knots with gusts to around 20 knots. Slight chance of showers in the morning. Chance of showers in the afternoon. Waves 2 feet or less.
Tonight..Southeast wind 15 to 25 knots with gusts to around 30 knots. Showers and slight chance of Thunderstorms. Waves 2 to 4 feet.
Tuesday..Southwest wind 10 to 20 knots with gusts to around 30 knots. Chance of showers. Waves 2 to 4 feet.
Tuesday night..Southwest wind 10 to 20 knots with gusts to around 30 knots. Mostly clear. Waves 2 to 4 feet. Winds and waves higher in the vicinity of Thunderstorms. SEe the open lakes forecast for days 3 through 5.
LMZ342 Expires:201908261615;;225378
FZUS53 KAPX 260815
NSHAPX
Nearshore Marine Forecast
National Weather Service Gaylord MI
415 AM EDT Mon Aug 26 2019
For waters within five nautical miles of shore on Lakes Huron...
Michigan and Superior.
Waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. Occasional wave height is the average of
the highest 1/10 of the wave spectrum.
LMZ342-261615-
7 Day Forecast for Marine Location Near Charlevoix, MI
Hourly EDIT Helplocation: 45.31, -85.25 debug
Area Discussion for - Gaylord, MI
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus63 kapx 260615 afdapx area forecast discussion national weather service gaylord mi 215 am edt Mon aug 26 2019 Near term (today through tonight) issued at 214 am edt Mon aug 26 2019 impactful weather: minimal. Decent rain expected with a slight chance of garden-variety thunderstorms tonight. No severe storms. Pattern synopsis and forecast: high pressure was well east of the region early this morning, with low pressure and a cold front through the plains. Aloft, we were getting some better SW flow, with weak dpva and warm and moist advection resulting in increasing cloudiness across NRN michigan. The pressure gradient was also continuing to tighten, and keeping a 5-10 mph SE wind going. This was keeping temperatures much more mild than this time the last few days. Current temperatures were in the mid 50s to lower 60s. The deeper moisture and strongest instability was just ahead of the main upper trough and cold front in the nrn plains, as well as with a shortwave trough, weak low pressure and more marginal instability lifting through the lower half of the mississippi valley. Numerous areas of convection were in these areas. Heading through the day, we will continue to see the atmosphere saturate with skies becoming cloudy. Increasing dpva and upper divergence, and especially LLJ theta-e advection, will result in showers spreading from the gtv bay region in the early half of the afternoon, to the NE through late afternoon and tonight. The strongest deep layer -divq will be tonight, forcing aided by low level convergence associated with the arrival of a warm front, and approach of a cold front, both associated with a sfc low working into western lake superior. All of NRN michigan will see periods of showers tonight. There is little to no instability seen today, and thus no chance for thunder. However for tonight, fcst soundings do suggest 400-800j kg of MUCAPE for at least a slight chance for thunderstorms. No severe storms for sure. High temperatures for today will be in the mid to upper 70s most areas, with mild lows tonight in the upper 50s to lower half of the 60s. Short term (Tuesday through Wednesday) issued at 214 am edt Mon aug 26 2019 high impact weather potential: minimal pattern synopsis and forecast: broad upper level troughing will remain over the great lakes region throughout the forecast period. An upper level low over hudson bay will stretch into the midwest Tuesday and into the southeastern states by Wednesday. This will create periods of showers and cloudy skies over the entire forecast area through at least Thursday and possibly beyond. Tuesday a cold front associated with the attendant surface low pressure system near hudson bay approaches from the west across the forecast area with southerly winds advecting gulf moisture. More widespread heavier precipitation associated with this front will diminish by the afternoon hours. Said front should be nearly through the first half of northern lower by the beginning of this forecast period... With heavier more widespread rain being over eastern upper and northeast lower. This will continue to move off to the east and become more spotty showers through the remaining forecast period with the broad upper level troughiness and lingering moisture. Rainfall amounts Tuesday morning over the more widespread rain will be from 0.25-0.50" of additional rainfall that fell from the previous forecast period (Monday evening night). Late Tuesday evening night, northern michigan becomes dry slotted, with rain clearing out, but with some clouds remaining as broad upper level |
troughing and lingering moisture remain overhead. A moisture plume with associated shortwave traversing the broad upper level troughing with 850mb temperatures around 6c will produce lake effect clouds and rain Wednesday as lake temperatures are 20-21c. Winds will have a southerly component through Tuesday afternoon evening, until aforementioned cold front moves through and veers winds to more westerly. Winds each day could gusts up to 20-25 mph, even closer to 30 mph Wednesday with the cold air advection. Daytime temperatures will be in the mid to upper 70s, while the westerly winds will advect a bit cooler temperatures for Wednesday... Only reaching into the mid 60s to low 70s, Thursday will be a bit warmer for some, with temperatures possibly nearing upper 70s near saginaw bay. Long term (Wednesday night through Sunday) issued at 214 am edt Mon aug 26 2019 high impact weather... None is expected. Broad troughing mentioned in previous forecast period will continue to produce periodic showers through Friday for northern michigan. High pressure and drier air then move in late Friday and should produce a rather pleasant beginning to the holiday weekend... Although beginning to be a bit cooler, with daytime temperatures reaching into the upper 60s to near 70. Aviation (for the 06z tafs through 06z Monday night) issued at 1151 pm edt Sun aug 25 2019 high pressure continues to move east away from new england, while a cold front advances into the western dakotas. Mid high clouds are increasing ahead of the incoming system, though precip is still a long ways off. QuietVFR tonight into Monday morning, though showers will push into NW lower mi after 18z. MVFR cigs vsbys possible in NW lower mi after precip arrives in the afternoon. Ifr conditions become more common Monday evening as cigs vsbys worsen. Light SE winds overnight, but will become somewhat gusty again on Monday. Llws by late Monday evening. Marine Issued at 214 am edt Mon aug 26 2019 low pressure and it's cold front, along with periods of showers, arrive through the day today, and will continue into Tuesday. There is also a slight chance of thunderstorms tonight, but nothing close to severe. SE winds will continue to increase through tonight, and result in gusty advisory level conditions for all nearshore waters over this time. Directions will turn wsw behind the cold front on Tuesday, with speeds only slightly weakening. The lake michigan nearshore waters will need a continued advisory headline. Apx watches warnings advisories Mi... None. Lh... Small craft advisory from 11 am this morning to 6 pm edt Tuesday for lhz345>349. Lm... Small craft advisory from 7 pm this evening to 6 am edt Wednesday for lmz323-341-342-344>346. Ls... Small craft advisory from 11 am this morning to 6 pm edt Tuesday for lsz321-322. Near term... Smd short term... Tl long term... Tl aviation... Jz marine... Smd |
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 |
| 45022 | 11 mi | 28 min | E 14 G 16 | 63°F | 69°F | 1 ft | 1019.3 hPa | 61°F |
| GTLM4 - Grand Traverse Light, MI | 17 mi | 74 min | S 4.1 G 13 | 63°F | 1018.6 hPa | |||
| WSLM4 | 37 mi | 58 min | E 6 | 63°F | 63°F | 1018.9 hPa (-0.6) | 57°F | |
| 45183 | 38 mi | 58 min | SSE 9.7 G 12 | 66°F | 66°F | 1018.9 hPa | ||
| MACM4 - 9075080 - Mackinaw City, MI | 43 mi | 58 min | SE 7 G 8.9 | 61°F | 64°F | 1019.7 hPa (-0.8) | ||
| 45175 | 44 mi | 29 min | ESE 9.7 G 12 | 63°F | 65°F | 1 ft | 1019 hPa | 60°F |
Wind History for Mackinaw City, MI
(wind in knots) EDIT (on/off) Help| 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 | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | |
| Last 24hr | S G8 | S | SE | SE | E | E | E | E | NE | E | NE G14 | E | E G22 | E | E | SE G23 | SE | SE G17 | SE G16 | SE | SE | SE | SE | SE |
| 1 day ago | SW | SW | SW | S | SE | E | NE | E G10 | NE | NE | NE | NE | NE | NE | SE | E | SE | SE | SE | SE | S | SE G8 | SE | SE |
| 2 days ago | W | W | NW | NW | N G10 | N G7 | NE G10 | NE | NE | S | N | N | N G10 | NE | NE | N | NE G8 | N | N | N G15 | NW | N | E | W |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Charlevoix, Charlevoix Municipal Airport, MI | 1 mi | 2.7 hrs | ESE 3 | 10.00 mi | Fair | 64°F | 56°F | 78% | 1020 hPa |
| Harbor Springs, Harbor Springs Airport, MI | 20 mi | 2.3 hrs | E 4 | 10.00 mi | Fair | 61°F | 59°F | 93% | 1019.6 hPa |
| Bellaire, Antrim County Airport, MI | 22 mi | 2 hrs | N 0 | 10.00 mi | Fair | 60°F | 56°F | 89% | 1018.6 hPa |
Link to 5 minute data for KCVX
Wind History from CVX (wind in knots)
| 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 | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | |
| Last 24hr | E | SE | SE | Calm | SE | SE | SE | E | E | E | E | E G15 | SE | S | SE G15 | SE | SE | SE | E | E | ||||
| 1 day ago | SE | SE | SE | SE | SE | SE | S | N | NW | N | NW | NW | N | NW | N | N | NE | E | E | E | ||||
| 2 days ago | Calm | Calm | Calm | Calm | Calm | E | N | N | N | N | N | N | N G14 | N G14 | N | NW | N | N | NE | NE | NE | Calm | SE |
Tide / Current Tables for
EDIT Weekend mode (on/off) (on/off) HelpTide / Current Tables for
EDIT (on/off) HelpWeather Map and Satellite Images
(on/off) HelpWeather Map
GOES Local Image of EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Gaylord, MI (4,6,7,8)
(on/off) Help
Ground Weather Radar Station Gaylord, MI
(on/off) Help
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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. |