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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 6:33AM | Sunset 8:20PM | Thursday August 22, 2019 10:16 PM EDT (02:16 UTC) | Moonrise 10:55PM | Moonset 12:30PM | Illumination 50% |  |
LHZ362 Lake Huron From Presque Isle Light To Sturgeon Point Mi Beyond 5nm Off Shore- Lake Huron From Sturgeon Point To Alabaster Mi Beyond 5nm Off Shore- 948 Pm Edt Thu Aug 22 2019
Rest of tonight..North winds 10 to 15 knots. Waves 2 to 4 feet.
Friday..North winds 10 to 15 knots. A chance of waterspouts. Waves 1 to 3 feet.
Friday night..North winds 5 to 10 knots. Waves 1 to 3 feet.
Saturday..Northeast winds 5 to 10 knots. Waves 2 feet or less.
Saturday night..East winds 5 to 10 knots. Waves 2 feet or less.
Sunday..Southeast winds 5 to 10 knots increasing to 10 to 15 knots late in the afternoon. Waves 1 to 3 feet building to 2 to 4 feet late in the evening.
Monday..Southeast winds 15 to 20 knots becoming south 20 to 25 knots in the late evening and early morning. A chance of showers and Thunderstorms until early morning. Waves 4 to 6 feet building to 6 to 9 feet until early morning. Waves occasionally around 12 feet.
Tuesday..South winds 15 to 20 knots with gusts to around 30 knots becoming southwest 10 to 15 knots until early morning. A chance of showers and Thunderstorms. Waves 5 to 7 feet subsiding to 2 to 4 feet in the late evening and early morning. Waves occasionally around 10 feet.
Rest of tonight..North winds 10 to 15 knots. Waves 2 to 4 feet.
Friday..North winds 10 to 15 knots. A chance of waterspouts. Waves 1 to 3 feet.
Friday night..North winds 5 to 10 knots. Waves 1 to 3 feet.
Saturday..Northeast winds 5 to 10 knots. Waves 2 feet or less.
Saturday night..East winds 5 to 10 knots. Waves 2 feet or less.
Sunday..Southeast winds 5 to 10 knots increasing to 10 to 15 knots late in the afternoon. Waves 1 to 3 feet building to 2 to 4 feet late in the evening.
Monday..Southeast winds 15 to 20 knots becoming south 20 to 25 knots in the late evening and early morning. A chance of showers and Thunderstorms until early morning. Waves 4 to 6 feet building to 6 to 9 feet until early morning. Waves occasionally around 12 feet.
Tuesday..South winds 15 to 20 knots with gusts to around 30 knots becoming southwest 10 to 15 knots until early morning. A chance of showers and Thunderstorms. Waves 5 to 7 feet subsiding to 2 to 4 feet in the late evening and early morning. Waves occasionally around 10 feet.
LHZ362 Expires:201908230815;;060766
FZUS63 KDTX 230148
GLFLH
Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
948 PM EDT Thu Aug 22 2019
For waters beyond five nautical miles off shore on Lake Huron
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.
.SYNOPSIS...A broad Canadian high will become centered over Upper
Michigan on Friday while strengthening to 30.30 inches. The
expansive high pressure system will move across eastern Ontario
on Saturday before becoming centered over the Canadian Maritimes
by the end of the weekend.
LHZ362-363-230815-
7 Day Forecast for Marine Location Near Harrisville, MI
Hourly EDIT Helplocation: 44.99, -82.16 debug
Area Discussion for - Gaylord, MI
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus63 kapx 230119 afdapx area forecast discussion national weather service gaylord mi 919 pm edt Thu aug 22 2019 Update Issued at 919 pm edt Thu aug 22 2019 large area of cool canadian high pressure continues to build southward into the upper mississippi valley and the great lakes region late this evening. Upper level trough axis remains upstream... But will be swinging thru northern michigan overnight into early Friday. This feature combined with cold air aloft may kick off a few northerly flow lake effect rain showers overnight into Friday morning. But overall... Our CWA will remain precip-free overnight and rather cool for this time of year. Overnight low temps will cool into the 40s for much of our cwa... And even into the upper 30s for some inland higher terrain areas of northern lower michigan. Near term (through tonight) issued at 245 pm edt Thu aug 22 2019 Excellent sleeping weather tonight... high impact weather... None expected. Primary forecast concerns... Possible pops. Looking at the mid afternoon surface weather map, high pressure remains centered over northwest ontario with ridging extending all the way into northern michigan. Visible satellite look shows a scattered to broken cumulus field across the region (mainly inland). Apx radar was void of returns. High pressure and associated dry air continue to keep clouds from building into showers so far this afternoon. However, a short wave evident on water vapor imagery may be enough to tip the scales and combine with the cold air aloft to produce a few lake effect rain showers overnight across portions of northwest and northeast lower. Elsewhere, clear to partly cloudy skies and light winds will allow for chilly temperatures once again with a range between the mid 30s and mid 40s. Short term (Friday through Sunday) issued at 245 pm edt Thu aug 22 2019 Quiet and pleasant late-summer weekend... high impact weather potential: none. Upper low initially over eastern canada will open up and eject. 500mb ridge axis will build eastward in its wake, and will be overhead Sat night. A lingering cool airmass could contribute to a few lake effect showers Friday, especially early. Otherwise, ridging surface and aloft will provide for quiet and eventually warmer wx. 850mb temps will dip down to around 4c in northern reaches by fri morning. So the question is whether we can scavenge some lake effect showers. Fetch is N to nne, circa 10kt, allowing decoupling over land tonight. Resulting land breeze development will result in mid- lake convergence early Friday, especially on lake mi (skinny enough to allow for land breeze collisions). Lake-induced CAPE values will reach nearly 200j kg on warmer lake mi, closer to 100j kg on northern lake huron. Pops already exist in portions of NW and ne lower mi Friday morning. Given all of the above, will be boosting |
expanding pops somewhat in NW lower mi, while reducing somewhat in ne lower. Fetch is unfavorable for eastern upper mi. Land breeze circulations helping to force these showers will fall apart as the morning proceeds, and will have no precip in the afternoon. Surface high pressure will be almost dead overhead Friday night, and will gradually move east thru the weekend. Ridging will extend westward back into northern mi, resulting in meager return flow. Incoming surface cold front is only slowly advancing across the dakotas on Sunday. So abundant dry air will result in quiet wx and relatively clear skies. Max temps Friday still a bit on the cool side, upper 60s to mid 70s. Saturday will be in the low mid 70s, and 75 to 80f for Sunday. Min temps 40s Friday night, mid 40s to mid 50s Sat night. Long term (Sunday night through Thursday) issued at 245 pm edt Thu aug 22 2019 upper ridge axis will get shunted eastward early next week as energy advances across the northern states. Some phasing is possible with ejecting southern stream waves from the mid ms valley. This eventually carves out an upper low, which gradually wobbles across manitoba and far northern ontario next week. Precip chances will increase W to e, mainly on Monday night, gradually exiting with cold fropa Tuesday. Unfavorable diurnal timing supports removing thunder, at least for now. Monday will be another relatively warm day ahead of the front, but the rest of the week will be cooler with the upper low hovering to our north. For the same reason, sporadic small pops are in order for the rest of next week. Aviation (for the 00z tafs through 00z Friday evening) issued at 700 pm edt Thu aug 22 2019 cool canadian high pressure will continue to build southward into the upper mississippi valley and the great lakes region thru Friday night. Overall dry weather is expected... Although there is an outside chance for a brief light lake effect rain shower late tonight into Friday morning as cool water rides of the relatively warm lakes. SolidVFR conditions are expected thru the 24 hour taf forecast period. Mainly light variable winds tonight will become north at around 10 kts on Friday. Marine Issued at 245 pm edt Thu aug 22 2019 north northwest wind gusts of 15 to 20 knots will continue through this afternoon but winds and waves should remain below small craft criteria. Lighter winds overnight into Friday morning before some gusts to around 15 knots Friday afternoon. However, still no marine headlines are anticipated. Apx watches warnings advisories Mi... None. Lh... None. Lm... None. Ls... None. Update... Mr near term... As short term... Jz long term... Jz aviation... Mr 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 |
| 45003 - N HURON 37NM Northeast of Alpena, MI | 44 mi | 26 min | NNW 14 G 16 | 64°F | 66°F | 2 ft | 1017.6 hPa (+1.2) | |
| APNM4 - Alpena Harbor Light, MI | 67 mi | 16 min | NW 4.1 G 5.1 | 62°F | ||||
| LPNM4 - Alpena, MI - 9075065 | 67 mi | 46 min | N 5.1 G 7 | 62°F | 62°F | 1018.5 hPa | 47°F |
Wind History for Alpena, MI
(wind in knots) EDIT (on/off) Help| 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 | 7 PM | 8 PM | 9 PM | 10 PM | |
| Last 24hr | N G10 | N G10 | N G15 | NW G12 | NW | NW G8 | NW | NW G9 | NW G9 | NW | N G8 | N G10 | N G10 | NW G12 | NW G11 | N | N G14 | N G13 | N G13 | NE G12 | N | N | N | NW |
| 1 day ago | N | N | NW | NW | NW | NW | NW | N | NW | NW | N G9 | N | NW | NW G11 | NW G11 | N G12 | N G14 | N G17 | N G13 | N G15 | N G13 | N G10 | N G19 | N G12 |
| 2 days ago | S | W | W | W | N | NW | N | N | N | NW | NW | NW | S | S | S | S | SE G11 | SE G8 | SE G10 | SE G8 | SE G8 | SE | E | N |
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 |
| Oscoda, Oscoda-Wurtsmith Airport, MI | 75 mi | 40 min | N 0 | 10.00 mi | Fair | 58°F | 53°F | 87% | 1018.3 hPa |
Link to 5 minute data for KOSC
Wind History from OSC (wind in knots)
| 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 | 7 PM | 8 PM | 9 PM | 10 PM | |
| Last 24hr | N | N | Calm | W | NW | Calm | W | W | W | W | NW | NW | NW | N | N | N | N | N | NE | NE | NE | NE | W | Calm |
| 1 day ago | SW | SW | Calm | Calm | W | Calm | W | Calm | SW | Calm | Calm | W | W | W | SW | Calm | Calm | W | NE | NE | NE | NE | NE | NW |
| 2 days ago | S | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | SE | SW | E | S | SW | S | S | SE | S | W | S |
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 GreatLakes 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 (22,6,7,8)
(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. |