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Marine Weather and Tides
Version 3.4 |
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome. 10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name. |
| Sunrise 7:16AM | Sunset 7:43PM | Monday March 25, 2019 2:24 AM EDT (06:24 UTC) | Moonrise 12:00AM | Moonset 9:18AM | Illumination 81% |  |
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- 931 Pm Edt Sun Mar 24 2019
Rest of tonight..North winds 10 to 15 knots. Waves 3 to 5 feet.
Monday..North winds 10 to 15 knots backing to the northwest early in the afternoon...then increasing to 15 to 20 knots late in the afternoon. Waves 2 to 4 feet building to 5 to 7 feet late in the afternoon. Waves occasionally around 10 feet.
Monday night..Northwest winds 15 to 20 knots with gusts to around 30 knots decreasing to 10 to 15 knots after midnight. Waves 5 to 7 feet. Waves occasionally around 10 feet.
Tuesday..Northwest winds 5 to 10 knots early in the morning becoming light and variable. Waves 3 to 5 feet subsiding to 1 to 3 feet in the late morning and afternoon.
Tuesday night..South winds 5 to 10 knots increasing to 10 to 15 knots in the late evening and overnight. Waves 1 to 3 feet building to 2 to 4 feet after midnight.
Wednesday..South winds 10 to 15 knots increasing to 15 to 20 knots late in the afternoon. A chance of rain and snow late in the afternoon. Waves 3 to 5 feet building to 5 to 7 feet late in the evening. Waves occasionally around 10 feet.
Thursday..Southwest winds 15 to 20 knots decreasing to 10 to 15 knots until early evening...then veering to the northwest in the late evening and early morning. A chance of rain. Waves 4 to 6 feet. Waves occasionally around 8 feet.
Friday..North winds 5 to 10 knots until afternoon becoming light and variable...then becoming northeast 5 to 10 knots in the late evening and early morning. A chance of rain and snow in the late evening and early morning. Waves 2 to 4 feet subsiding to 1 to 3 feet.
Rest of tonight..North winds 10 to 15 knots. Waves 3 to 5 feet.
Monday..North winds 10 to 15 knots backing to the northwest early in the afternoon...then increasing to 15 to 20 knots late in the afternoon. Waves 2 to 4 feet building to 5 to 7 feet late in the afternoon. Waves occasionally around 10 feet.
Monday night..Northwest winds 15 to 20 knots with gusts to around 30 knots decreasing to 10 to 15 knots after midnight. Waves 5 to 7 feet. Waves occasionally around 10 feet.
Tuesday..Northwest winds 5 to 10 knots early in the morning becoming light and variable. Waves 3 to 5 feet subsiding to 1 to 3 feet in the late morning and afternoon.
Tuesday night..South winds 5 to 10 knots increasing to 10 to 15 knots in the late evening and overnight. Waves 1 to 3 feet building to 2 to 4 feet after midnight.
Wednesday..South winds 10 to 15 knots increasing to 15 to 20 knots late in the afternoon. A chance of rain and snow late in the afternoon. Waves 3 to 5 feet building to 5 to 7 feet late in the evening. Waves occasionally around 10 feet.
Thursday..Southwest winds 15 to 20 knots decreasing to 10 to 15 knots until early evening...then veering to the northwest in the late evening and early morning. A chance of rain. Waves 4 to 6 feet. Waves occasionally around 8 feet.
Friday..North winds 5 to 10 knots until afternoon becoming light and variable...then becoming northeast 5 to 10 knots in the late evening and early morning. A chance of rain and snow in the late evening and early morning. Waves 2 to 4 feet subsiding to 1 to 3 feet.
LHZ362 Expires:201903250815;;872858
FZUS63 KDTX 250131
GLFLH
Open Lake Forecast for Lake Huron
National Weather Service Detroit/Pontiac MI
931 PM EDT Sun Mar 24 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...High pressure will continue to move towards the
western Great Lakes through Monday at 30.40 inches. This high
will drive a cold front, 30.10 inches, across Lake Huron this
afternoon on its way to the Ohio Valley tonight. The high
pressure will remain over the Great Lakes region through Tuesday
before departing to the east on Wednesday.
LHZ362-363-250815-
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 250526 afdapx area forecast discussion national weather service gaylord mi 126 am edt Mon mar 25 2019 Near term (tonight) issued at 125 am edt Mon mar 25 2019 high impact weather: none. Pattern synopsis and forecast: all quiet out there early this morning. A shortwave was rounding larger upper troughing that resided over eastern canada and the ne conus, passing by a frontal boundary that has sunk well south of nrn michigan. The last vestiges of lower level clouds have departed the srn-most cwa, while much drier air (pwats lowering to less than 0.15") has swept into the region and brought about clear skies. Temperatures were slow to fall despite the dry air clear skies, due to northerly winds at generally 5-10 mph. Readings were still in the upper teens to as warm as the upper 20s near saginaw bay. Very quiet weather today and tonight. The dry air of generally less than 0.15" pwat holds strong over all of NRN michigan, while strong sfc high pressure settles into NRN michigan by late tonight. There is an expectation of very little, if any, clouds around over this time. Winds do go light and variable near calm by daybreak Tuesday, after maybe a touch of gustiness out of the NW this afternoon and evening. Can see low temperatures dropping into the single digits and teens across most of the area. Highs today will be in the mid to upper 30s most areas. Short term (Tuesday through Wednesday) issued at 125 am edt Mon mar 25 2019 high impact weather potential: none. Pattern synopsis forecast: surface high pressure will gradually become situated squarely overhead Monday through early Tuesday before slowly sliding east into Tuesday night. Broad upper-level ridging will be evident upstream by early Tuesday, which is progged to gradually shift eastward through Wednesday before breaking down as several pieces of mid-level energy trek through the plains midwest great lakes Wednesday night through the end of the week... ultimately renewing precipitation chances locally. Primary forecast concerns challenges: moderating temperatures. Low pops Wednesday afternoon. Little in the way of sensible weather is expected Tuesday through much of Wednesday as aforementioned high pressure remains the dominant weather feature. Lots of sunshine, light winds and gradually moderating temperatures are expected to be the rule. High temperatures Tuesday expected to range from the upper 30s to low 40s across all of northern michigan. High pressure slowly drifts off to the east Tuesday night allowing southerly return flow to ramp up during the day Wednesday. This will only aid in amplifying the warming trend as high temps surge to the mid 40s across the eastern upper and to the upper 40s-low 50s |
elsewhere. Initial piece of shortwave energy will approach the northern half of the forecast area from the northwest Wednesday afternoon, perhaps aiding to bring a few scattered showers across eastern upper, but the majority of the area will see little more than a bit of increased cloud cover from this wave. Long term (Wednesday night through Sunday) issued at 125 am edt Mon mar 25 2019 high impact weather potential: minimal. Moisture will continue to be on the increase late in the week ahead of a front draped from the upper great lakes southwestward into the plains. A few weak disorganized areas of low pressure expected to trek along this front through the end of the week with primarily scattered rain showers anticipated for Thursday, perhaps transitioning to scattered snow showers Friday Saturday as temperatures cool behind the passing frontal boundary late in the week. Aviation (for the 06z tafs through 06z Monday night) issued at 125 am edt Mon mar 25 2019 very dry air continues to sink into NRN michigan, which will hold through Monday night, as strong sfc high pressure settles in by daybreak Tuesday. There is an expectation for very little, if any, clouds around this TAF period. Maybe a touch of gustiness out of the nw this afternoon early this evening, otherwise winds going near calm late Monday night. Marine Issued at 125 am edt Mon mar 25 2019 very dry air has been sinking into NRN michigan, which will hold through Tuesday night. Strong sfc high pressure settles into the region by daybreak Tuesday, then departs to the atlantic coast by Tuesday night. There is an expectation for very little, if any, clouds around over this time period, until Tuesday night when some higher clouds arrive. No precipitation expected. Gusty NW winds this afternoon evening will bring some low end advisory speeds to nrn lake huron, whitefish bay, and the st. Mary's. Winds weaken overnight Monday night, then switch around out of the SW Tuesday, increasing Tuesday night in a tightening pressure gradient. However, not expecting any advisory speeds attm. Apx watches warnings advisories Mi... None. Lh... Small craft advisory from noon today to 1 am edt Tuesday for lhz346>348. Lm... Small craft advisory until 6 am edt early this morning for lmz344>346. Ls... Small craft advisory from noon today to 1 am edt Tuesday for lsz321-322. Near term... Smd short term... Mg long term... Mg aviation... Smd 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 |
| APNM4 - Alpena Harbor Light, MI | 67 mi | 25 min | NNW 8 G 9.9 | 26°F | ||||
| LPNM4 - Alpena, MI - 9075065 | 67 mi | 37 min | N 8 G 11 | 1024.1 hPa |
Wind History for Alpena, MI
(wind in knots) EDIT (on/off) Help| 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 | 11 PM | 12 AM | 1 AM | 2 AM | |
| Last 24hr | NW | NW G11 | NW G7 | W | NW | NW G6 | NW G7 | NW | N | N G17 | NE G13 | NE G11 | NE G14 | NE G12 | NE G12 | NE G10 | NE G9 | NE G6 | N | N | N | N G8 | N G11 | N G11 |
| 1 day ago | NW | NW | NW | NW G6 | NW | NW G7 | NW G8 | NW | N | NW G10 | W | W G8 | NW G13 | W G13 | W G12 | NW G13 | W G14 | W | SW G4 | W | SW | SW | W G10 | NW G12 |
| 2 days ago | N G17 | N G17 | N G18 | N G16 | N G16 | N G17 | N G21 | N G25 | N G24 | N G28 | N G25 | N G22 | N G25 | N G22 | N G17 | N G20 | N G16 | N G17 | N G16 | N G10 | N |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Oscoda, Oscoda-Wurtsmith Airport, MI | 75 mi | 29 min | N 5 | 10.00 mi | Fair | 26°F | 19°F | 77% | 1023.4 hPa |
Wind History from OSC (wind in knots)
| 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 | 11 PM | -12 PM | 1 AM | 2 AM | |
| Last 24hr | SW | SW | SW | SW | SW | SW | SW | SW | W | NW | NE G19 | E | NE | NE G21 | NE G18 | NE | NE | N | N | N | N | N | N | N |
| 1 day ago | NW | NW | NW | NW | Calm | Calm | NW | NW | W | W | SW | W | W | W | W G16 | SW G15 | SW | SW | SW | S | SW | SW | SW | SW |
| 2 days ago | W | NW | NW G15 | NW G18 | N G16 | N G16 | N G21 | N G19 | N G21 | NW G28 | N G24 | NW G29 | NW G21 | N G25 | N G24 | NW G21 | NW G22 | NW G18 | NW G16 | NW G17 | NW | N G14 | NW | NW |
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
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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 (2,6,7,8)
(on/off) Help
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. |