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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 5:49AM | Sunset 7:36PM | Wednesday August 21, 2019 12:15 PM EDT (16:15 UTC) | Moonrise 10:37PM | Moonset 11:32AM | Illumination 65% |  |
ANZ152 Coastal Waters From Port Clyde, Me To Cape Elizabeth, Me Out 25 Nm- 1141 Am Edt Wed Aug 21 2019
Rest of today..S winds around 10 kt with gusts up to 20 kt. Seas around 2 ft. A slight chance of showers late this morning, then a chance of showers with a slight chance of tstms this afternoon. Some tstms may produce gusty winds, small hail, and heavy rainfall this afternoon.
Tonight..S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Showers likely with a chance of tstms in the evening, then a chance of showers after midnight. Some tstms may be severe with damaging winds, small hail, and heavy rainfall.
Thu..SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 4 ft.
Thu night..W winds 5 to 10 kt. Seas around 3 ft.
Fri..W winds 5 to 10 kt. Seas 2 to 3 ft.
Fri night..NW winds 5 to 10 kt. Seas around 2 ft.
Sat..N winds 5 to 10 kt. Seas around 2 ft.
Sat night..NE winds 5 to 10 kt. Seas around 2 ft.
Sun..E winds 10 to 15 kt. Seas 2 to 3 ft.
Sun night..E winds 5 to 10 kt. Seas around 2 ft. Winds and seas higher in and near tstms.
Rest of today..S winds around 10 kt with gusts up to 20 kt. Seas around 2 ft. A slight chance of showers late this morning, then a chance of showers with a slight chance of tstms this afternoon. Some tstms may produce gusty winds, small hail, and heavy rainfall this afternoon.
Tonight..S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Showers likely with a chance of tstms in the evening, then a chance of showers after midnight. Some tstms may be severe with damaging winds, small hail, and heavy rainfall.
Thu..SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 4 ft.
Thu night..W winds 5 to 10 kt. Seas around 3 ft.
Fri..W winds 5 to 10 kt. Seas 2 to 3 ft.
Fri night..NW winds 5 to 10 kt. Seas around 2 ft.
Sat..N winds 5 to 10 kt. Seas around 2 ft.
Sat night..NE winds 5 to 10 kt. Seas around 2 ft.
Sun..E winds 10 to 15 kt. Seas 2 to 3 ft.
Sun night..E winds 5 to 10 kt. Seas around 2 ft. Winds and seas higher in and near tstms.
ANZ100 1141 Am Edt Wed Aug 21 2019
Synopsis for stonington me to merrimack river ma out to 25 nm.. A warm front will gradually slide north across the waters today. A cold front moves across the area Thursday morning with high pressure and fair weather moving in for Friday and the weekend. &&
Synopsis for stonington me to merrimack river ma out to 25 nm.. A warm front will gradually slide north across the waters today. A cold front moves across the area Thursday morning with high pressure and fair weather moving in for Friday and the weekend. &&
7 Day Forecast for Marine Location Near Damariscotta, ME
Hourly EDIT Helplocation: 43.93, -69.42 debug
Area Discussion for - Gray/Portland, ME
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kgyx 211540 afdgyx area forecast discussion national weather service gray me 1140 am edt Wed aug 21 2019 Synopsis A warm front will approach from the southwest and move slowly northward across the area today. Showers and thunderstorms will become increasingly likely during the day... With a few severe storms possible during the afternoon and early evening. A cold front will sweep across the region early Thursday followed by cooler and drier air. High pressure will build in over the weekend and early next week allowing for fair weather. Near term today 1130am update... area of showers and a few embedded storms continues to slowly dissipate as it makes its way into western maine. This area generally marks the location of a warm front separating a moist environment to the south from a drier environment to the north. Meanwhile a line of storms is bearing down on new hampshire from the west. At this point it seems our best chance of severe thunderstorms will be with this line of storms coming from the west, but mainly along and south of that warm frontal line which currently stretches from about lebanon, nh to sanford, me. North of here the severe weather threat is decreasing as cloud cover has prevented good heating today which has limited instability. South of the warm front the added moisture may make up for the lack of heating and produce enough instability to maintain a greater severe weather threat. Still expect this line to reach the coast early this evening. Have made significant changes to the forecast mainly for temperatures (much cooler) as well as adjusting the area of enhanced thunderstorm threat wording. 930am update... have updated the forecast to adjust hourly precipitation chances based on latest thinking. Radar shows an area of showers and embedded storms in southwest new hampshire along and northeast of a warm frontal boundary. This will continue to slowly fall apart as it lifts northeast. Meanwhile, a more organized line of storms has formed over upstate new york and headed toward vermont. Timing of this looks to arrive in western new hampshire around or shortly after noon. This seems likely to be what will give us our best severe weather chances today, with damaging winds the primary threat along with heavy rain. At this point it's looking like this line makes it to the coast by about 8pm or so. 555 am update... for this estf update I adjusted pops for cluster of convection that has blossomed the past few hours north of the warm front and is currently entering western new england. Original discussion... at 06z... A weak 1018 millibar surface ridge over northern new england. A warm front extended from a weak low over the eastern great lakes into the mid atlantic region. GOES water vapor imagery showed an associated shortwave impulse over the upper midwest. NWS doppler radar mosaic showed an area of convection along and ahead of this impulse. For today... The weak ridge and comfortable airmass will quickly retreat offshore. The surface low will track northeast into western quebec by evening pulling the surface warm front north into the forecast area. Ahead of this boundary I expect scattered convection to develop across the area by mid morning. Much of new hampshire and adjacent southwest maine will then find itself in the warm sector by later today. An approaching pre-frontal trough and shortwave impulse should spawn a broken line of convection and a few |
supercells upstream of the area by afternoon. Modified forecast soundings support 1500 to 2000 j kg CAPE values in the warm sector this afternoon. Cams suggest convection will move east into the area by mid afternoon before exiting the area by late evening. It looks like damaging wind gusts will be the primary threat with large hail potential limited to a few stronger cells. As convection approaches the warm frontal boundary a few cells may make the most of the additional shear with a few spin ups not out of the question. Precipitable water values will rise to near 1.75 inches by later today and although convection will move along at a good clip... Any training of cells could result in a localized flash flood threat. Highs today will be mainly in the lower 80s... With 70s along the maine coast from casco bay and points east. However... It'll feel even warmer as dew points rise into the 60s and lower 70s. Short term tonight and Thursday The impulse exits the coast this evening along with much of the convection and the potential for strong to severe storms. The surface low will continue to strengthen over quebec and drag the cold front across the area in the predawn hours accompanied by scattered showers and isolated thunder. It'll be a humid night with areas of stratus and fog. Lows should be in the 60s. On Thursday... A secondary cold front will cross the area accompanied by a few clouds and scattered convection. It'll become noticeably less humid as the day progresses with drier air being ushered into the area by afternoon on a westerly wind. Highs will range from 70s in the mountains to the 80s elsewhere. Long term Thursday night through Tuesday For the long the weather looks pleasant with low humidity and cooler weather through the period. A cold front moves off the coast Thursday evening with drier air moving in. Dewpoint temperatures will fall into upper 40s to lower 50s by Friday afternoon. High pressure holds over the area through the period. There is a chance of mountain showers Friday afternoon as a shortwave moves overhead. Other than the chance of mountain showers Friday the long term looks great with high temperatures in the upper 60s low to mid 70s. Low temperatures will be in the upper 40s to mid 50s. It is interesting to note that the ECMWF shows an upper low developing over the forecast area Sunday. This is much different than the gfs. If this were to happen it is likely that Sunday and Monday would see more clouds and the chance of an afternoon shower especially over the higher terrain. Aviation 14z Wednesday through Sunday Short term through Thursday ...VFR but with showers and thunderstorms become increasingly likely by mid to late morning with areas of MVFR and local ifr, with highest chances between 19z and 00z today. Thereafter, low clouds and fog may form, especially in valleys and along the coast.VFR throughout on Thursday with brief local MVFR possible in -shra and isolated -tsra. Long term... MostlyVFR with early morning valley fog. Marine Short term through Thursday ... Conditions will remain below sca thresholds through Thursday. Long term... Expect winds and seas to remain below SCA criteria. Gyx watches warnings advisories Me... None. Nh... None. Marine... None. Near term update... Kimble |
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 |
| 44032 - Buoy E0104 - Central Maine Shelf | 15 mi | 71 min | S 5.8 G 5.8 | 65°F | 62°F | 1 ft | 1014.3 hPa | |
| 44033 - Buoy F0103 - West Penobscot Bay | 24 mi | 71 min | S 5.8 G 7.8 | 63°F | 62°F | 1 ft | 1014.9 hPa | |
| MISM1 - Matinicus Rock, ME | 32 mi | 25 min | 64°F | 1015 hPa (-0.5) | 60°F | |||
| 44007 - PORTLAND 12 NM Southeast of Portland,ME | 47 mi | 85 min | SW 9.7 G 9.7 | 69°F | 67°F | 2 ft | 1014.6 hPa (+0.0) | 67°F |
| CASM1 - 8418150 - Portland, ME | 48 mi | 51 min | 72°F | 64°F |
Wind History for Bar Harbor, ME
(wind in knots) EDIT (on/off) Help| 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 | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | |
| Last 24hr | N G6 | NE G7 | NE G7 | E | N | S | NW | W | W G7 | W G10 | S | SE | SE | -- | SE | -- | SE | SE | S | SE | SE | SE G10 | S | SE |
| 1 day ago | S | S | SE | SE G8 | S G10 | SE G10 | S G6 | SE | SE | E | NW | NW | SE | NW | N | -- | NW | NW | NW | NW | N | N | N | N |
| 2 days ago | S G6 | S | S | S | S | S | S G12 | S G8 | S | S | SE | E | S | S | S | S | S | SE | S | S | S G9 | SE G8 | SE | NE |
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 |
| Wiscasset Airport, ME | 15 mi | 82 min | Var 3 | 10.00 mi | Mostly Cloudy | 75°F | 66°F | 74% | 1015.5 hPa |
| Rockland, Knox County Regional Airport, ME | 19 mi | 79 min | S 6 | 10.00 mi | Fair | 72°F | 66°F | 84% | 1015.3 hPa |
Link to 5 minute data for KIWI
Wind History from IWI (wind in knots)
| 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 | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | |
| Last 24hr | S | S | SW | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | S | ||||||
| 1 day ago | S | S | S | S | S | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | NE | Calm | Calm | Calm | ||||||
| 2 days ago | SE | S | S | S | S | SW | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | S | S |
Tide / Current Tables for Muscongus Harbor, Muscongus Sound, Maine
EDIT Weekend mode (on/off) (on/off) Help One Week of DataMuscongus Harbor
Click for Map
Wed -- 03:10 AM EDT 8.81 feet High Tide
Wed -- 05:48 AM EDT Sunrise
Wed -- 09:23 AM EDT 0.92 feet Low Tide
Wed -- 11:32 AM EDT Moonset
Wed -- 03:31 PM EDT 8.92 feet High Tide
Wed -- 07:32 PM EDT Sunset
Wed -- 09:48 PM EDT 1.06 feet Low Tide
Wed -- 10:36 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 03:10 AM EDT 8.81 feet High Tide
Wed -- 05:48 AM EDT Sunrise
Wed -- 09:23 AM EDT 0.92 feet Low Tide
Wed -- 11:32 AM EDT Moonset
Wed -- 03:31 PM EDT 8.92 feet High Tide
Wed -- 07:32 PM EDT Sunset
Wed -- 09:48 PM EDT 1.06 feet Low Tide
Wed -- 10:36 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
| 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 | 11 pm |
| 4.5 | 6.5 | 8.1 | 8.8 | 8.5 | 7.4 | 5.7 | 3.6 | 1.9 | 1 | 1.1 | 2.2 | 3.9 | 5.9 | 7.8 | 8.8 | 8.8 | 8 | 6.5 | 4.5 | 2.6 | 1.4 | 1.1 | 1.7 |
Tide / Current Tables for Sheepscot River (off Barter Island), Maine Current
EDIT (on/off) Help One Week of DataSheepscot River (off Barter Island)
Click for Map
Wed -- 12:44 AM EDT 0.76 knots Max Flood
Wed -- 03:34 AM EDT -0.00 knots Slack
Wed -- 05:49 AM EDT Sunrise
Wed -- 07:22 AM EDT -1.01 knots Max Ebb
Wed -- 11:04 AM EDT 0.00 knots Slack
Wed -- 11:33 AM EDT Moonset
Wed -- 01:09 PM EDT 0.84 knots Max Flood
Wed -- 04:29 PM EDT -0.00 knots Slack
Wed -- 07:33 PM EDT Sunset
Wed -- 07:50 PM EDT -0.95 knots Max Ebb
Wed -- 10:37 PM EDT Moonrise
Wed -- 11:35 PM EDT 0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 12:44 AM EDT 0.76 knots Max Flood
Wed -- 03:34 AM EDT -0.00 knots Slack
Wed -- 05:49 AM EDT Sunrise
Wed -- 07:22 AM EDT -1.01 knots Max Ebb
Wed -- 11:04 AM EDT 0.00 knots Slack
Wed -- 11:33 AM EDT Moonset
Wed -- 01:09 PM EDT 0.84 knots Max Flood
Wed -- 04:29 PM EDT -0.00 knots Slack
Wed -- 07:33 PM EDT Sunset
Wed -- 07:50 PM EDT -0.95 knots Max Ebb
Wed -- 10:37 PM EDT Moonrise
Wed -- 11:35 PM EDT 0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
| 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 | 11 pm |
| 0.6 | 0.7 | 0.4 | 0.1 | -0.1 | -0.3 | -0.7 | -1 | -1 | -0.7 | -0.5 | -0 | 0.5 | 0.8 | 0.7 | 0.3 | 0.1 | -0.1 | -0.4 | -0.8 | -0.9 | -0.8 | -0.6 | -0.3 |
Weather 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 Gray/Portland, ME (12,3,4,5)
(on/off) Help
Ground Weather Radar Station Portland, ME
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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. |