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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 5:54AM | Sunset 7:34PM | Friday August 23, 2019 10:08 AM EDT (14:08 UTC) | Moonrise 11:44PM | Moonset 1:41PM | Illumination 45% |  |
ANZ154 Coastal Waters From Cape Elizabeth, Me To Merrimack River, Ma Out 25 Nm- 832 Am Edt Fri Aug 23 2019
Today..NW winds 5 to 10 kt, becoming sw this afternoon. Seas 2 to 3 ft. Scattered sprinkles this morning.
Tonight..NW winds 5 to 15 kt, becoming 10 to 15 kt after midnight. Seas 2 to 3 ft.
Sat..N winds 10 to 15 kt with gusts up to 20 kt, becoming ne 5 to 10 kt in the afternoon. Seas 2 to 3 ft.
Sat night..NE winds 5 to 10 kt, becoming E 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft.
Sun..NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft.
Sun night..E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft.
Mon..NE winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft.
Mon night..E winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 4 ft.
Tue..NE winds 5 to 10 kt. Seas around 4 ft.
Tue night..S winds around 5 kt. Seas around 4 ft. A chance of showers.
Today..NW winds 5 to 10 kt, becoming sw this afternoon. Seas 2 to 3 ft. Scattered sprinkles this morning.
Tonight..NW winds 5 to 15 kt, becoming 10 to 15 kt after midnight. Seas 2 to 3 ft.
Sat..N winds 10 to 15 kt with gusts up to 20 kt, becoming ne 5 to 10 kt in the afternoon. Seas 2 to 3 ft.
Sat night..NE winds 5 to 10 kt, becoming E 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft.
Sun..NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft.
Sun night..E winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft.
Mon..NE winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft.
Mon night..E winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 4 ft.
Tue..NE winds 5 to 10 kt. Seas around 4 ft.
Tue night..S winds around 5 kt. Seas around 4 ft. A chance of showers.
ANZ100 832 Am Edt Fri Aug 23 2019
Synopsis for stonington me to merrimack river ma out to 25 nm.. High pressure will gradually build across the area through the weekend. Low pressure will move well east of new england by the middle of next week. &&
Synopsis for stonington me to merrimack river ma out to 25 nm.. High pressure will gradually build across the area through the weekend. Low pressure will move well east of new england by the middle of next week. &&
7 Day Forecast for Marine Location Near Biddeford, ME
Hourly EDIT Helplocation: 43.29, -70.17 debug
Area Discussion for - Gray/Portland, ME
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kgyx 231252 aab afdgyx area forecast discussion... Updated national weather service gray me 852 am edt Fri aug 23 2019 Synopsis High pressure will dominate the weather pattern this weekend for pleasant weather and comfortable humidity levels. An area of low pressure off the east coast will track south off CAPE cod early next week that will likely be too far offshore to impact the area. A front will approach the area from the west midweek bringing an increase in temperatures and humidity and a chance for precipitation. Near term until 6 pm this evening 845 am: quick update for sky cover trends and to adjust temperatures upward a bit through the day given t8 from the gyx 12z RAOB showing t8s between 10 and 11c which should allow a few sites in the downslope regime south of the mountains to reach 80s. Significantly drier airmass today with dewpoints largely in the 50s and rhs falling to around 40 percent this afternoon. 600 am... Minor estf update to reflect the current mesonet and satellite trends in near term grids. Prev disc... at 06z... A 1000 millibar low over quebec with a trailing cold front through the gulf of maine and a series of weak surface troughs over quebec. A sprawling 1024 millibar high was centered over western ontario province. An upper low was evident in goes water vapor imagery over quebec. While the cold front has slid offshore... Southern new hampshire as well as the coastal plain remain under the western and northern periphery of the its cloud shield. An impulse pivoting around the upper low is backing the flow a bit this morning and a few light showers may brush seacoast new hampshire through dawn. Otherwise... A quiet start to the day with northern areas seeing some early morning valley stratus and fog. The front will retreat further offshore by later this morning with partly to mostly sunny skies expected for the balance of the day. Highs will range from the upper 60s to near 70 for the mountains... With 70s elsewhere. Short term 6 pm this evening through 6 pm Saturday For tonight... The upper low over quebec may spill a few clouds into northern and eastern sections of the forecast area. Otherwise it'll be a mainly clear and cool night with light winds and the dry airmass allowing temperatures to drop into the 40s across the mountains with lower and mid 50s elsewhere. I expect some patchy valley stratus and fog to form once again towards morning. On Saturday... The high center builds by to our north with northerly flow turning onshore during the afternoon hours. We'll average partly sunny as some fair weather clouds bubble up with daytime heating. The day will have a fall-like feel with high temperatures ranging from the upper 60s to mid 70s. |
Long term Saturday night through Thursday Fair weather is expected for most of the long term period as new england gets entrenched into a semi-rex block pattern with weak upper low pressure overhead into early next week and high pressure at the sfc. Other than some clouds from time to time with the cooler air aloft, our weather will remain dry through Monday with temperatures near to slightly below normal. Radiational cooling is likely to occur for several nights with the sfc high pressure ridging remaining in place . Have therefore preferred MOS guidance here. Have also added valley fog to the interior as a result of the expected raditational cooling. Thereafter, a short wave trough is expected to approach from the west by Tuesday night. This is conjunction with the moisture associated with offshore low pressure should allow chances for showers to increase in the Tuesday night through Thursday timeframe. However, confidence is low on placement of forcing for ascent by midweek due to divergence in model solutions. Therefore, will continue with low chance pops. Aviation 13z Friday through Tuesday Short term through Saturday ... LCL ifr in valley status and fog btw 08z and 12z Fri and again 08 to 12z sat... OtwVFR expected. Long term... Saturday night through Monday will feature high pressure with light winds.VFR conditions are expected outside of the usual nighttime valley fog this time of year. Marine Short term through Saturday ... Winds and seas will remain below sca threshold as high pressure gradually builds by to our north. Long term... Conditions are expected to remain below sca thresholds through Monday. There is a chance that winds and seas on the outer waters build to SCA levels late Tuesday through Wednesday as offshore low pressure moves by to the southeast. Gyx watches warnings advisories Me... None. Nh... None. Marine... None. Synopsis... near term... Arnott short term... long term... aviation... marine... |
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 |
| 44007 - PORTLAND 12 NM Southeast of Portland,ME | 16 mi | 78 min | WNW 3.9 G 3.9 | 66°F | 65°F | 3 ft | 1012.8 hPa (+1.5) | 58°F |
| 44030 - Buoy B0102 - Western Maine Shelf | 16 mi | 124 min | W 3.9 G 5.8 | 66°F | 68°F | 2 ft | 1013.3 hPa | |
| WEXM1 - Wells Reserve, ME | 20 mi | 68 min | W 2.9 | 68°F | 59°F | |||
| WELM1 - 8419317 - Wells, ME | 21 mi | 68 min | WNW 2.9 G 6 | 68°F | 64°F | 1013.8 hPa (+1.2) | ||
| CASM1 - 8418150 - Portland, ME | 26 mi | 74 min | 69°F | 62°F | ||||
| 44073 | 27 mi | 124 min | WNW 5.8 G 7.8 | 69°F | ||||
| CMLN3 | 32 mi | 184 min | W 9.9 | 59°F | ||||
| IOSN3 - Isle of Shoals, NH | 33 mi | 68 min | WNW 12 G 13 | 66°F | 1013.1 hPa (+1.4) | 58°F | ||
| 44098 - Jeffrey's Ledge, NH (160) | 34 mi | 60 min | 70°F | 3 ft | ||||
| BGXN3 - Great Bay Reserve, NH | 38 mi | 83 min | W 5.1 | 68°F | 1014 hPa | 59°F |
Wind History for Wells, ME
(wind in knots) EDIT (on/off) Help| 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 | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | |
| Last 24hr | SE | SE | S | S | S | S | S | SE | SE | NW | W | NW | NW G6 | -- | W | W G7 | NW | NW G7 | N | -- | NW G7 | NW | W | NW G6 |
| 1 day ago | S | S | SW G9 | W | S | NE | NE | NE | NE | NE | SW | -- | NE | -- | NE | W | W G7 | W G7 | W | S | SW G7 | W G6 | W G7 | W G8 |
| 2 days ago | N G6 | -- | SE | SE G10 | S | S | S | S | S | SW | SW | S | NW | N | N | NW | -- | NW | N | N | N | W | SE | S |
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 |
| Portland, Portland International Jetport, ME | 27 mi | 77 min | NW 8 | 10.00 mi | Partly Cloudy | 70°F | 55°F | 59% | 1013.5 hPa |
Link to 5 minute data for KPWM
Wind History from PWM (wind in knots)
| 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 | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | |
| Last 24hr | W | SW | S | SE | S | S | S | S | S | SW | W | W | Calm | Calm | W | Calm | Calm | W | Calm | W | W | Calm | NW | NW |
| 1 day ago | S | S | SW | SW | Calm | NE | E | E | E | E | E | Calm | Calm | Calm | Calm | W | W | W | W | SW | S | SW | SW | |
| 2 days ago | N | NW | NW | Calm | S | S | S | S | S | S | SW | SW | SW | SW | Calm | S | Calm | Calm | Calm | Calm | Calm | SW | SW | SW |
Tide / Current Tables for Cape Porpoise, Maine
EDIT Weekend mode (on/off) (on/off) Help One Week of DataCape Porpoise
Click for Map
Fri -- 05:02 AM EDT 7.93 feet High Tide
Fri -- 05:55 AM EDT Sunrise
Fri -- 10:58 AM EDT Last Quarter
Fri -- 11:06 AM EDT 1.27 feet Low Tide
Fri -- 01:42 PM EDT Moonset
Fri -- 05:22 PM EDT 8.61 feet High Tide
Fri -- 07:32 PM EDT Sunset
Fri -- 11:44 PM EDT Moonrise
Fri -- 11:45 PM EDT 1.05 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 05:02 AM EDT 7.93 feet High Tide
Fri -- 05:55 AM EDT Sunrise
Fri -- 10:58 AM EDT Last Quarter
Fri -- 11:06 AM EDT 1.27 feet Low Tide
Fri -- 01:42 PM EDT Moonset
Fri -- 05:22 PM EDT 8.61 feet High Tide
Fri -- 07:32 PM EDT Sunset
Fri -- 11:44 PM EDT Moonrise
Fri -- 11:45 PM EDT 1.05 feet Low Tide
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 |
| 1.6 | 2.8 | 4.5 | 6.2 | 7.5 | 7.9 | 7.6 | 6.5 | 5 | 3.2 | 1.8 | 1.3 | 1.6 | 2.7 | 4.3 | 6.2 | 7.8 | 8.5 | 8.4 | 7.6 | 6.1 | 4.2 | 2.4 | 1.3 |
Tide / Current Tables for Wood Island Harbor, Maine
EDIT (on/off) Help One Week of DataWood Island Harbor
Click for Map
Fri -- 04:52 AM EDT 8.01 feet High Tide
Fri -- 05:55 AM EDT Sunrise
Fri -- 10:48 AM EDT 1.28 feet Low Tide
Fri -- 10:58 AM EDT Last Quarter
Fri -- 01:42 PM EDT Moonset
Fri -- 05:12 PM EDT 8.70 feet High Tide
Fri -- 07:32 PM EDT Sunset
Fri -- 11:27 PM EDT 1.06 feet Low Tide
Fri -- 11:44 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 04:52 AM EDT 8.01 feet High Tide
Fri -- 05:55 AM EDT Sunrise
Fri -- 10:48 AM EDT 1.28 feet Low Tide
Fri -- 10:58 AM EDT Last Quarter
Fri -- 01:42 PM EDT Moonset
Fri -- 05:12 PM EDT 8.70 feet High Tide
Fri -- 07:32 PM EDT Sunset
Fri -- 11:27 PM EDT 1.06 feet Low Tide
Fri -- 11:44 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 |
| 1.9 | 3.2 | 4.9 | 6.6 | 7.7 | 8 | 7.5 | 6.3 | 4.6 | 2.9 | 1.6 | 1.3 | 1.9 | 3.1 | 4.8 | 6.6 | 8.1 | 8.7 | 8.4 | 7.4 | 5.7 | 3.8 | 2.1 | 1.2 |
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 (10,2,3,4)
(on/off) Help
Ground Weather Radar Station Portland, ME
(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. |