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Marine Weather and Tides
Version 3.4 |
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues. |
| Sunrise 5:38AM | Sunset 9:14PM | Monday June 25, 2018 3:37 AM EDT (07:37 UTC) | Moonrise 6:01PM | Moonset 3:11AM | Illumination 90% |  |
Marine Forecasts
EDIT (on/off) Help| 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- 947 Pm Edt Sun Jun 24 2018 Rest of tonight..North winds 5 to 10 knots. Waves 2 feet or less. Monday..Northeast winds 5 to 10 knots until late afternoon becoming light and variable. Waves 1 to 3 feet. Monday night..Light and variable winds. Waves 2 feet or less. Tuesday..Southeast winds 5 to 10 knots becoming east 10 to 15 knots early in the afternoon. Waves 1 to 3 feet. Tuesday night..East winds 10 to 15 knots becoming southeast 15 to 20 knots after midnight. Showers and Thunderstorms likely. Waves 1 to 3 feet building to 2 to 4 feet after midnight. Wednesday..Southeast winds 15 to 20 knots becoming south 10 to 15 knots late in the afternoon...then veering to the northwest late in the evening. Showers and Thunderstorms likely...then a chance of showers and Thunderstorms early in the evening. Waves 2 to 4 feet subsiding to 1 to 3 feet late in the afternoon. Thursday..Northwest winds 10 to 15 knots becoming west 5 to 10 knots in the late morning and early afternoon...then becoming light and variable until early morning. Waves 1 to 3 feet. Friday..Southeast winds 5 to 10 knots becoming south 15 to 20 knots. Waves 1 to 3 feet building to 4 to 6 feet until early morning. Waves occasionally around 8 feet. | LHZ362 Expires:201806250815;;066931 FZUS63 KDTX 250147 GLFLH Open Lake Forecast for Lake Huron National Weather Service Detroit/Pontiac MI 947 PM EDT Sun Jun 24 2018 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, increasing to 30.30 inches, will build south across the Great Lakes tonight and Monday before sliding east on Tuesday. Low pressure, 29.60 inches, will then approach the region from the Central Plains heading into the mid week period. 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 250622 afdapx area forecast discussion national weather service gaylord mi 222 am edt Mon jun 25 2018 Near term (today through tonight) issued at 222 am edt Mon jun 25 2018 Sunny and warm today... high impact weather potential... None. Pattern synopsis forecast... Large area of high pressure is centered between lake superior and james bay early this morning... With pronounced surface ridging extending southward thru the great lakes region. Skies remain clear across our CWA attm... With just a few strips of thin cirrus drifting overhead via blowoff from upstream convection over western iowa. High pressure center will slide SE toward new england over the next 24 hours... But strong surface ridging and dry air will remain in place across the great lakes thru tonight. The northwoods will see a beautiful sunny and warm late june day today. Afternoon highs ranging from the lower 70s in eastern upper and NE lower michigan thanks to cooler easterly flow off of lake huron to the lower 80s along the lake michigan shoreline areas via downslope flow. We will see some increase in high clouds tonight... But overall conditions will remain mostly clear. Overnight lows will cool into the mid 40s to lower 50s. Short term (Tuesday through Wednesday) issued at 222 am edt Mon jun 25 2018 Active midweek weather... high impact weather potential: thunderstorms possible late Tuesday afternoon evening through early Wednesday. Pattern forecast: upper level ridge axis centered atop northern michigan Monday night will break down and shift east throughout the day Tuesday ahead of a vertically stacked low pressure system set to trek from the central plains squarely across michigan during the Tuesday through Wednesday timeframe. As a result, a return to active weather is expected locally with periods of rain and embedded thunderstorms. Primary forecast concerns challenges: pops thunder chances throughout the period. First and foremost, guidance has shifted south and slowed rather considerably over the last 24 hours or so with respect to the timing of precipitation arrival across northern michigan... Now pushed back 6-12+ hours area-wide with showers becoming possible across the far southwestern counties as early as mid-late Tuesday afternoon and across the remainder of northern lower Tuesday evening into Tuesday night. This certainly seems logical as precipitation will be fighting inherent dry canadian air in place from the day prior. Some question marks lie on far north precip is able to make it... With portions of eastern upper perhaps missing any measurable rain all together. In advance of precipitation, an increasing lowering cloud deck will be the rule for much of the day Tuesday with mostly cloudy skies anticipated area-wide by early afternoon. Seasonable high temperatures continue... Varying from the low 70s across eastern upper and coastal areas of northern lower to the mid- upper 70s inland. Periods of rain will become the norm Tuesday night into early Wednesday (mainly across northern lower) with plenty of moisture |
associated with this system, evident by pws progged to rise over 1.6". Rain could fall heavily at times, especially in any embedded thunderstorms, which would be most probable Tuesday night into the first half of Wednesday as the system's warm front swings northward toward the straits and a southwesterly low-level jet ramps up. Not overly impressed with thunder chances by any stretch and believe that any rumbles of thunder will remain largely scattered at this point. Bulk shear values still progged in the 20-30 kt range leaves quite a bit to be desired before raising red flags for severe weather chances, but certainly something that will be monitored over the 48 hours. As the system shifts off to the east throughout the day Wednesday, wrap around moisture is expected to keep shower chances in the forecast through the afternoon hours, although in a more scattered lighter fashion before precip chances end completely across the entire area by Wednesday night. High temperatures Wednesday range from near 70 north to the upper 70s near saginaw bay. Long term (Wednesday night through Sunday) issued at 222 am edt Mon jun 25 2018 high impact weather potential: very warm temperatures possible Friday through Sunday with high temperatures in the 90s and heat indices near 100 degrees not out of the question. High pressure is anticipated to be nosing into the region by late Wednesday night through Thursday leading to clearing skies and a break in the active weather. The next threat for scattered showers and storms holds off until Friday in association with energy riding along the northern periphery of ridging expected to build across the center of the country late this week into the upcoming weekend. The biggest story will likely revolve around the prospects for a return to true summertime heat and humidity with high temperatures in the 90s across much of the area Friday through at least Sunday. Heat indices near or even exceeding 100 degrees certainly not out of the question. Aviation (for the 06z tafs through 06z Monday night) issued at 1148 pm edt Sun jun 24 2018 vfr. High pressure over far northern ontario is pushing drier air south into the region. Minimal cloud cover expected thru the taf periods. Can not entirely rule out some shallow ground fog at any taf site overnight. Light winds, tending to be easterly on Monday. Marine Issued at 222 am edt Mon jun 25 2018 winds and waves will remain below SCA criteria thru Tuesday night. Our next chance of rain will develop Tuesday and Tuesday night along and ahead of low pressure lifting NE into the western great lakes region. Apx watches warnings advisories Mi... None. Lh... None. Lm... None. Ls... None. Near term... Mr short term... Mg long term... Mg aviation... Jz marine... Mr |
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 | 47 min | NNW 7.8 G 7.8 | 47°F | 39°F | 1021.7 hPa (+1.0) | ||
| LPNM4 - Alpena, MI - 9075065 | 67 mi | 55 min | NNW 4.1 G 6 | 55°F | 1021.2 hPa | 51°F | ||
| APNM4 - Alpena Harbor Light, MI | 67 mi | 37 min | N 5.1 G 7 | 55°F |
Wind History for Alpena, MI
(wind in knots) EDIT (on/off) Help| 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 | 3 AM | |
| Last 24hr | N | N | N | N | NE G8 | NE G7 | NE | NE G9 | NE G10 | NE G8 | NE | E G10 | N G10 | N G9 | NE G9 | NE G8 | NE G7 | N | N | N | N | N | N | N |
| 1 day ago | NE | E | E | N G5 | SE | E G6 | E | E G11 | E G7 | SW | SE G5 | E | E G9 | SE G7 | SE | SW | -- | NE | S | NE | NE | NE G5 | N | N G6 |
| 2 days ago | N | N | E G7 | E | S | S | S | S G12 | SE G10 | E G10 | E G10 | E G12 | E G10 | SE G10 | NE G6 | NE G9 | NE G7 | NE G5 | SE G7 | SE | E | E | NE G6 |
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 | 42 min | N 0 | 10.00 mi | Fair | 50°F | 49°F | 97% | 1021.3 hPa |
Wind History from OSC (wind in knots)
| 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 | 3 AM | |
| Last 24hr | N | N | N | N | N | N | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | Calm | Calm | SW | NW | Calm |
| 1 day ago | E | E | E | E | E | E | E | E | NE | NE | NE | NE | NE | N | NE | NE | NE | NE | N | Calm | Calm | NE | Calm | NE |
| 2 days ago | NE | NE | N | N | N | NE | E | E | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | NE | E | E |
Tide / Current Tables for
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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.
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Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Gaylord, MI (3,6,7,8)
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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. |