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Marine Weather and Tides
Version 3.4 |
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported. 5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive. 5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds. |
| Sunrise 5:49AM | Sunset 7:34PM | Monday August 21, 2017 9:30 PM EDT (01:30 UTC) | Moonrise 5:29AM | Moonset 7:38PM | Illumination 0% |  |
Marine Forecasts
EDIT (on/off) Help| ANZ152 Coastal Waters From Port Clyde, Me To Cape Elizabeth, Me Out 25 Nm- 557 Pm Edt Mon Aug 21 2017 .small craft advisory in effect from Tuesday afternoon through Wednesday morning... SW winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Tonight..SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. Tue..SW winds 5 to 15 kt, becoming S 10 to 20 kt in the afternoon. Seas 2 to 3 ft, building to 3 to 5 ft in the afternoon. Tue night..S winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. A chance of tstms. A chance of showers in the evening, then showers likely after midnight. Some tstms may produce gusty winds, and heavy rainfall. Wed..SW winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 7 ft. A chance of showers in the morning. Wed night..W winds 5 to 10 kt, becoming nw after midnight. Seas 3 to 5 ft. Thu..W winds around 5 kt. Seas 2 to 3 ft. Thu night..NW winds 5 to 10 kt. Seas 2 to 3 ft. Fri..N winds 5 to 10 kt. Seas around 2 ft. Fri night..NW winds 5 to 10 kt. Seas around 2 ft. Winds and seas higher in and near tstms. | ANZ100 557 Pm Edt Mon Aug 21 2017 Synopsis for stonington me to merrimack river ma out to 25 nm.. High pressure will build south of the waters through tonight before pushing well offshore to our south on Tuesday. A cold front will cross the waters Wednesday morning before high pressure builds back over the waters for the end of the week. |
7 Day Forecast for Marine Location Near Newcastle, ME
Hourly EDIT Helplocation: 44.03, -69.54 debug
Area Discussion for - Gray/Portland, ME
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kgyx 212207 afdgyx area forecast discussion national weather service gray me 607 pm edt Mon aug 21 2017 Synopsis High pressure will build to the south of the region through tonight before sliding to the east on Tuesday. A strong cold front will move across the region Tuesday night and early Wednesday. High pressure and drier air follows the front Wednesday night through Friday. Near term through Tuesday 6pm update... Just a minor update to put in the latest observations. Clear skies tonight will allow for some fog to form in valleys. At 18z... A ridge of high pressure was draped across new england. Outside of a few fair weather cumulus... GOES imagery showed fair skies across the region. For tonight... The ridge retreats offshore to our south. Outside of a few warm air advection clouds... A mainly clear night with patchy valley stratus and fog developing in the predawn hours. Lows tonight will be mainly in the 60s. Short term Tuesday night On Tuesday... Strengthening southwest flow between the offshore high and an approaching cold front will provide a hot and humid day to the forecast area. Highs will be well into the 80s with a few 90 degree readings over southeast new hampshire into adjacent interior york county maine. Heat indices over southeast new hampshire should peak in the lower 90s and fall short of advisory threshold. The best forcing and wind field will be to our west although a few airmass storms may develop during the afternoon over interior nh into the mountains of western maine where a few storms could produce gusty winds. The more organized convection with the front should arrive during the evening hours or after dusk across much of the area... Which should mitigate the severe convective threat. Convection should end from west to east overnight as the front sweeps offshore in the predawn hours of Wednesday. Long term Wednesday through Monday The pattern setting up in the extended portends to rather quiet and benign weather. Front sweeps offshore Wednesday morning with any showers coming to an end early. Upper level trough will hang around thurs and Fri with which will allow for periods of bkn clouds and some showers, mainly in the mountains, especially Friday. Otherwise cool high pressure moves in for the weekend. Aviation 22z Monday through Saturday |
Short term through Tuesday night ...VFR... With sct MVFR and lcl ifr btw 08 - 12z Tue in valley fog. Late Tue and Tue night conditions lowering to MVFR with LCL ifr in developing showers and scattered thunderstorms ahead of an approaching cold front. Long term... Any ifr should lift toVFR prior to noon Wednesday. Otherwise,VFR conditions should prevail thu-sat with local MVFR in lower clouds and showers, especially in the mountains possible. Marine Short term through Tuesday night ... Winds and seas are expected to remain below small craft through early Tuesday as surface high pressure builds to our south. By late Tue and tue night an increasing south to southwest flow ahead of the approaching cold front will allow SCA conditions to develop. Long term... SCA conditions Wednesday in the wake of a cold front should wane later Wed morning with seas diminishing during the afternoon. Otherwise, tranquil conditions are expected on the waters thu-sat. Tides coastal flooding We're in the period of high astronomical tides for the month of august. The high tides of potential concern (referencing portland harbor where flood stage is 12.0 ft mllw) are: 1140 pm tonight... .11.2 ft mllw 1231 am Wednesday. 11.1 ft mllw the Tuesday night high tide (1231 am Wednesday) could see some splashover as onshore flow and seas increase ahead of an approaching cold front. Gyx watches warnings advisories Me... None. Nh... None. Marine... Small craft advisory from 8 pm Tuesday to 8 am edt Wednesday for anz151-153. Small craft advisory from 3 pm Tuesday to 8 am edt Wednesday for anz150-152-154. Synopsis... Schwibs near term... Curtis short term... Schwibs long term... Ekster aviation... Schwibs marine... Ekster schwibs tides coastal flooding... |
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 | 24 mi | 87 min | SSW 12 G 12 | 64°F | 60°F | 2 ft | 1016.3 hPa | |
| 44033 - Buoy F0103 - West Penobscot Bay | 29 mi | 87 min | SW 12 G 14 | 64°F | 60°F | 1 ft | 1015.9 hPa | |
| MISM1 - Matinicus Rock, ME | 40 mi | 31 min | SW 19 G 20 | 65°F | 1016.6 hPa (+0.0) | 62°F | ||
| CASM1 - 8418150 - Portland, ME | 45 mi | 43 min | 75°F | 60°F | 1016.9 hPa | |||
| 44007 - PORTLAND 12 NM Southeast of Portland,ME | 47 mi | 41 min | SSW 9.7 G 9.7 | 66°F | 61°F | 2 ft | 1016.7 hPa (-0.0) | 62°F |
Wind History for Wells, ME
(wind in knots) EDIT (on/off) Help| 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 | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | |
| Last 24hr | NW | W | W | W | NW | W G9 | NW | W G11 | NW | NW G9 | NW G7 | SE | NE G5 | W | W G8 | S | S | S G16 | S G13 | W G11 | W G12 | W | SW | W |
| 1 day ago | S | N | NE | W | NE | NW | W G8 | NW | W | W | W G7 | W G12 | NW G13 | NW G15 | NW G15 | NW G13 | NW G13 | NW G15 | NW G16 | W G17 | NW G14 | NW G12 | NW | W |
| 2 days ago | E | NW | N G11 | N G9 | N G8 | N | NE | N | N G9 | N | N | N | NW | N | W | S | S | S | S G11 | S G13 | S | S | S G13 | S |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Wiscasset Airport, ME | 10 mi | 38 min | N 0 | 10.00 mi | Fair | 67°F | 63°F | 87% | 1017.4 hPa |
| Rockland, Knox County Regional Airport, ME | 23 mi | 35 min | W 6 | 10.00 mi | Fair | 69°F | 62°F | 78% | 1017 hPa |
| Augusta, Augusta State Airport, ME | 24 mi | 38 min | SSW 4 | 10.00 mi | Fair | 72°F | 64°F | 79% | 1016.7 hPa |
Wind History from IWI (wind in knots)
| 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 | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | |
| Last 24hr | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | W | SW | SW | SW | G15 | S | SW | S | S | Calm | ||
| 1 day ago | Calm | Calm | Calm | SW | Calm | SW | Calm | Calm | Calm | Calm | Calm | SW | G15 | Calm | Calm | Calm | Calm | |||||||
| 2 days ago | E | Calm | Calm | Calm | N | Calm | Calm | Calm | Calm | Calm | Calm | W | Calm | Calm | S | S | S | SE | Calm | Calm |
Tide / Current Tables for Newcastle, Maine
EDIT RT Ports Option Weekend mode (on/off) (on/off) Help One Week of Data| Newcastle Click for Map Mon -- 05:28 AM EDT Moonrise Mon -- 05:36 AM EDT -1.19 feet Low Tide Mon -- 05:49 AM EDT Sunrise Mon -- 11:42 AM EDT 10.34 feet High Tide Mon -- 02:31 PM EDT New Moon Mon -- 05:50 PM EDT -0.50 feet Low Tide Mon -- 07:32 PM EDT Sunset Mon -- 07:37 PM EDT Moonset Mon -- 11:57 PM EDT 11.44 feet High Tide Tide / Current data from XTide NOT FOR NAVIGATION |
| 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
| 10.8 | 9 | 6.2 | 3.1 | 0.5 | -0.9 | -1.1 | 0.3 | 2.8 | 5.9 | 8.4 | 10 | 10.3 | 9.3 | 7.1 | 4.3 | 1.7 | -0 | -0.5 | 0.5 | 2.9 | 6 | 8.8 | 10.8 |
Tide / Current Tables for Sheepscot River (off Barter Island), Maine Current
EDIT (on/off) Help One Week of Data| Sheepscot River (off Barter Island) Click for Map Mon -- 02:58 AM EDT -1.44 knots Max Ebb Mon -- 05:29 AM EDT Moonrise Mon -- 05:49 AM EDT Sunrise Mon -- 06:23 AM EDT 0.00 knots Slack Mon -- 08:24 AM EDT 0.94 knots Max Flood Mon -- 12:26 PM EDT -0.00 knots Slack Mon -- 02:31 PM EDT New Moon Mon -- 03:20 PM EDT -1.28 knots Max Ebb Mon -- 06:37 PM EDT 0.00 knots Slack Mon -- 07:32 PM EDT Sunset Mon -- 07:37 PM EDT Moonset Mon -- 08:43 PM EDT 1.04 knots Max Flood Tide / Current data from XTide NOT FOR NAVIGATION |
| 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
| -0.1 | -0.8 | -1.3 | -1.4 | -1.4 | -1 | -0.3 | 0.5 | 0.9 | 0.9 | 0.8 | 0.6 | 0.3 | -0.4 | -1 | -1.3 | -1.2 | -1 | -0.5 | 0.3 | 0.9 | 1 | 0.9 | 0.7 |
Weather Map and Satellite Images
(on/off) HelpWeather Map | IR Satellite Image from GEOS GOES Local Image of Northeast EDIT  |
Wind Forecast for Gray/Portland, ME (21,6,7,8)
(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. |