Marine Weather and Tides
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 6:30AM||Sunset 6:31PM||Monday September 25, 2017 2:55 PM EDT (18:55 UTC)||Moonrise 11:44AM||Moonset 9:47PM||Illumination 26%|
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|ANZ150 Coastal Waters From Stonington, Me To Port Clyde, Me Out 25 Nm- 240 Pm Edt Mon Sep 25 2017 |
Tonight..SW winds 5 to 10 kt. Seas 3 to 5 ft. Patchy fog after midnight.
Tue..SW winds around 10 kt. Seas 3 to 5 ft. Patchy fog in the morning.
Tue night..SW winds 5 to 10 kt. Seas 3 to 5 ft. Patchy fog after midnight.
Wed..S winds 5 to 10 kt. Seas 3 to 5 ft. Patchy fog.
Wed night..SW winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. A chance of showers.
Thu..NW winds around 10 kt. Seas 4 to 6 ft.
Thu night..N winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft.
Fri..N winds 5 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft.
Fri night..N winds 5 to 10 kt. Seas 4 to 6 ft.
Sat..N winds 5 to 10 kt. Seas 3 to 5 ft.
Sat night..N winds 5 to 10 kt. Seas 2 to 4 ft.
|ANZ100 240 Pm Edt Mon Sep 25 2017 |
Synopsis for stonington me to merrimack river ma out to 25 nm.. High pressure will hold over the waters through the middle of the week. A cold front will cross the waters Thursday bringing scattered showers and Thunderstorms. Maria will pass well south and east of the region late in the week...with the only impacts being increased long period swell.
7 Day Forecast for Marine Location Near Waldoboro, MEHourly EDIT Help
Area Discussion for - Gray/Portland, ME  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus61 kgyx 251518|
area forecast discussion
national weather service gray me
1118 am edt Mon sep 25 2017
High pressure will hold over the region today through Tuesday
night with temperatures remaining well above normal. A cold
front will approach from the west on Wednesday and will cross
the region Wednesday night. Expect a cooler and drier air mass
for the rest of the week while hurricane maria passes by well to
Near term until 6 pm this evening
1100 am update...
quick update to adjust temp TD sky and rh grids. Morning valley
fog has pretty much lifted across the region with some cu
development occurring over the higher terrain in the mountains.
Looking for a mostly sunny afternoon with temps once again
soaring to near record levels. A developing sea breeze will
knock temps back into the upper 70s to lower 80s in coastal
areas. May see a sprinkle or shower in the mountains but these
should be light and widely scattered.
have updated the grids based on current conditions. Areas of
dense fog continue to expand in western and northern nh as well
as portions of the western mountains of maine. Have raised a
dense fog advisory good until 9 am. Otherwise, just a few
minor modifications to the morning forecast.
patchy dense fog expected early this morning. Visibilities
locally near a quarter of a mile in fog, but not widespread at
this time. Nevertheless, will highlight with a special weather
statement for the morning commute.
A large ridge of high pressure will remain entrenched over the
region today. H8 temperatures near +17c, sunshine and
relatively good mixing is expected after the morning fog
dissipates. This will allow for another very warm day with
readings in the 80s in just about all sections except for the
midcoast region of maine as winds become onshore near the coast
in the afternoon.
Moisture will be on the increase today with surface dew points
approaching 70 in some areas. This will make it feel even more
uncomfortable especially for so late in the season with heat
indices climbing into the lower 90s over portions of southern
Sufficient instability and differential heating to possibly
trigger a stray shower or isolated thunderstorm near and over
the higher terrain today. This is supported by this morning's
mesoscale models. Any convection will likely remain over the
higher terrain as wind fields remain very light to spread the
shower activity off the hilltops.
Short term 6 pm this evening through 6 pm Tuesday
Patchy fog once again tonight with visibilities lowering once
again. High pressure will remain in control as a warm front
remains just north of our region.
By Tuesday, expect a repeat performance from Monday. However,
temperatures may not be quite as warm as additional cloud cover
will drift over the region from an approaching cold front. There
may be a slight chance of a shower late in the day over far|
northern areas as a cold front approaches from the northwest.
Long term Tuesday night through Sunday
The large ridge which has brought sustained warmth to new
england for quite some time will get chipped away at by several
progressive troughs this week. The first passes by well to the
north on Monday, but in its wake it shoves a cold front
southward into northern maine Tuesday night before stalling.
This could be the focus for a shower or two Tuesday night and
Wednesday, but otherwise expect the heat and humidity to
continue across the area. A southerly low level wind will keep
temperatures down a bit across maine, but humidity remains high.
The next trough moves through the lower saint lawrence valley
Wednesday into Wednesday night, sending a stronger front
southeastward into new england Wednesday night. This will be an
air mass changer for our region, with the heat and humidity
being swept off to the northeast while cooler and drier air push
in from the canadian prairies. There will be some showers and
thunderstorms along the front as it moves toward our area
Wednesday night, but the best forcing for precipitation will be
sliding off to the northeast, so the best chance of rain will be
in the far northwest while coastal locations stand a good chance
of remaining dry. Once the front moves offshore it will begin
interacting with hurricane maria which will have drifted
northward to a position south and east of CAPE cod. Expect maria
to be pulled quickly to the east and stay far enough south to
avoid any impacts in our area. Meanwhile, the cooler, drier air
will bring temperatures back to near normal levels by Friday and
Another trough swings through new england on Saturday and could
provide another chance of showers as it does so. But this trough
will be filling as it moves through and does not have a good
moisture connection, so precipitation chances will be rather
meager. It will, however, send a reinforcing shot of cool, dry
air into the region, with high pressure building in for Sunday
and Monday. Expect some good radiational cooling conditions at
night as high pressure sits over our area for a couple of
nights. Although a few spots managed to reach the freezing mark
way back on september 2nd, this could be the first freeze of
the season for other protected valley locations in the north.
This is about two weeks later than normal.
Aviation 15z Monday through Friday
Short term...VFR conditions today through Tuesday with high
pressure overhead. Patchy fog expected once again tonight over
most of the inland valleys.
Long term... A flow off the water on Wednesday could bring in
some lower ceilings and visibility late Wednesday into Wednesday
night ahead of a cold front. This front will produce some
showers and a few thunderstorms in northern areas. ExpectVFR
conditions to return on Thursday.
Short term... Winds and seas will remain below SCA thresholds as
high pressure remains over the region.
Long term... Although winds remain light over the waters, some
larger swells from the tropics may begin arriving Wednesday into
Thursday. A cold front will cross the waters early Thursday.
Gyx watches warnings advisories
Weather Reporting StationsEDIT (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||11 mi||111 min||ENE 7.8 G 7.8||62°F||58°F||4 ft||1018.2 hPa|
|44033 - Buoy F0103 - West Penobscot Bay||20 mi||111 min||SE 9.7 G 12||60°F||59°F||2 ft||1018.2 hPa|
|MISM1 - Matinicus Rock, ME||23 mi||55 min||E 8.9 G 8.9||62°F||1018.5 hPa (-0.7)||60°F|
Wind History for Bar Harbor, ME(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Rockland, Knox County Regional Airport, ME||17 mi||59 min||SE 6||10.00 mi||Fair||69°F||62°F||78%||1019.1 hPa|
|Wiscasset Airport, ME||23 mi||62 min||S 5||10.00 mi||Fair||82°F||68°F||63%||1018.9 hPa|
Wind History from RKD (wind in knots)
|1 day ago||S||S||S||S||SW||W||W||W||W||Calm||Calm||W||W||Calm||Calm||Calm||Calm||Calm||Calm||Calm||S||S||S||S|
|2 days ago||NE|
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
|Burnt Island |
Click for Map
Mon -- 02:57 AM EDT 8.80 feet High Tide
Mon -- 06:28 AM EDT Sunrise
Mon -- 08:58 AM EDT 1.02 feet Low Tide
Mon -- 11:44 AM EDT Moonrise
Mon -- 03:09 PM EDT 9.14 feet High Tide
Mon -- 06:28 PM EDT Sunset
Mon -- 09:31 PM EDT 0.70 feet Low Tide
Mon -- 09:47 PM EDT Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
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|Sheepscot River (off Barter Island) |
Click for Map
Mon -- 12:07 AM EDT 0.77 knots Max Flood
Mon -- 04:05 AM EDT -0.00 knots Slack
Mon -- 06:29 AM EDT Sunrise
Mon -- 06:51 AM EDT -1.01 knots Max Ebb
Mon -- 10:31 AM EDT 0.00 knots Slack
Mon -- 11:45 AM EDT Moonrise
Mon -- 12:27 PM EDT 0.82 knots Max Flood
Mon -- 04:25 PM EDT -0.00 knots Slack
Mon -- 06:30 PM EDT Sunset
Mon -- 07:18 PM EDT -1.05 knots Max Ebb
Mon -- 09:48 PM EDT Moonset
Mon -- 11:06 PM EDT 0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Weather Map and Satellite Images(on/off)  Help
|Weather Map ||IR Satellite Image from GEOS|
GOES Local Image of Northeast EDIT
Wind Forecast for Gray/Portland, ME (14,3,4,5)(on/off)  Help
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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.