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 7:03AM||Sunset 4:40PM||Tuesday January 23, 2018 10:18 PM EST (03:18 UTC)||Moonrise 11:31AM||Moonset 12:00AM||Illumination 49%|
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|ANZ153 Casco Bay- 606 Pm Est Tue Jan 23 2018 |
.small craft advisory in effect through Wednesday evening...
Tonight..SW winds 10 to 20 kt with gusts up to 25 kt. Seas 4 to 7 ft, subsiding to 3 to 5 ft after midnight. Showers likely this evening. Areas of fog this evening. Vsby variable to less than one quarter nm this evening.
Wed..W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft.
Wed night..NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft.
Thu..NW winds 10 to 15 kt with gusts up to 25 kt. Seas 1 to 2 ft. Light freezing spray.
Thu night..NW winds 10 to 15 kt with gusts up to 25 kt. Seas 1 foot or less. Light freezing spray.
Fri..NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt in the afternoon. Seas 1 foot or less. Light freezing spray.
Fri night..W winds 5 to 10 kt. Seas 1 foot or less, then 2 to 3 ft after midnight.
Sat..SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft.
Sat night..SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft.
Sun..SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Rain likely.
Sun night..SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Rain likely.
|ANZ100 606 Pm Est Tue Jan 23 2018 |
Synopsis for stonington me to merrimack river ma out to 25 nm.. Low pressure will drag a cold front across northern new england this evening. Until the front crosses the waters patchy fog and gusty southerly winds are possible. Winds will become westerly and continue to gust through Thursday. High pressure gradually builds in from the west through the rest of the week.
7 Day Forecast for Marine Location Near Bowdoinham, MEHourly EDIT Help
Area Discussion for - Gray/Portland, ME  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus61 kgyx 240108|
area forecast discussion
national weather service gray me
808 pm est Tue jan 23 2018
Temperatures have struggled upward all day... Finally reaching
near freezing. After widespread freezing rain of one to two
tenths... Precipitation is coming to an end from west to east
late this afternoon and early this evening. Any remaining
showers will transition to snow in the mountains... While to the
south dries out. Temperatures will remain fairly steady
this evening... Climbing with the cold front around midnight
before slowly falling towards sunrise. Near normal temperatures
are expected Wednesday... With much colder overnight temperatures
Wednesday night. High pressure builds in for the remainder of
Near term until 6 am Wednesday morning
805 pm update... Have allowed the remaining winter weather
advisories expire on time at 8 pm. Most locations have risen to
between 32 and 33 degrees at this time. However, we do expect
many slippery areas to continue overnight - especially in areas
that clear out after midnight and the winds stay calm. This
could lead to a quick refreezing of some surfaces - especially
secondary roads, parking lots, and sidewalks. In the meantime we
do have one more band of mostly rain to move through.
This will move through quickly - likely lasting around 1 hour at
any given location through 03-04z and could be accompanied by an
isolated rumble of thunder. Winds may pick up somewhat with or
immediately behind this band which could cause some more
branches to fall and cause power outages.
610 pm update... Have updated mainly pops for the next 3 hours or
so as a strong short wave trough will swing through with a
relatively short-lived band of showers. This can currently be
seen near the ny vt border. The latest run of the hrrr has a
pretty decent handle on it, so updated the pops to reflect the
hrrr for the most part. Most locations are at or just above
freezing at this time, so this should mainly be in the form of
rain. However, some spots are still just below freezing
(especially in the advisory area) so some additional minor ice
accretion will be possible until about 03z or so. Thereafter,
a clearing trend is expected. Otherwise, have cancelled the wind
advisory for the mid coast, as 40 kt gusts are not foreseen at
5 pm update... Have extended winter weather advisories until 8 pm
where temperatures are still around or just below freezing. This
includes interior portions of our maine zones and carrol county
nh. Have cancelled coos county as most areas are now above
freezing. In any event, the precipitation will come to an end
over the next couple of hours, with power outages possible
through that time.
back edge of the precip has reached the ct river valley this
hour... And will continue to pull ewd into the late
afternoon early evening. WAA and latent heating has pulled
surface temps up to just about freezing in most locations. There
are pockets... Especially across the interior of WRN me... That
remain below freezing and will continue to see occasional
freezing rain into the early evening. For that reason the winter
wx advisories there remain in place. Across SRN nh and coastal
wrn me I have allowed those advisories to expire.
Where the warm front has made it onshore around midcoast me
there remains a threat for strong sly wind gusts. So far rkd has
been fairly benign winds... But just offshore at mism1 wind gusts
above 40 kts have been observed. I will keep the wind advisory
in effect for this threat.
Temps should remain fairly steady into the evening ahead of the
approaching cold front... Back across central ny. The upper level
front is quickly moving e... With dry slot bringing some clearing
to far WRN zones before sunset. With the approach of the
front... Deeper mixing will help overturn the low level cold and
temps should rise to their daily MAX around the 06z time frame.
Temps slowly fall after that... With strongest CAA delaying until
Short term 6 am Wednesday morning through Wednesday night
Wly CAA flow will dominate Wed and Wed night. Temps are not
expected to rise too much from morning readings Wed as the
colder air moves in. Winds may gust as high as 30 knots at
times in the afternoon. I would not be surprised to see this
lead to a few scattered outages in places where ice remains
stuck to tree limbs. Temps continue to fall overnight... But
gradient winds will keep readings closer to model raw 2 m temps
than cooler MOS values. Upslope snow showers will continue thru
the day and into the overnight with some light accumulations in
the higher terrain.
Long term Thursday through Tuesday
The deterministic model solutions remain in decent agreement on
the long wave pattern through the middle of next week. The
pattern will remain progressive and begins to amplify with time.
A steady progression of troughs and ridges across the forecast
area will result in several sharp swings in temperature between
well below and well above normal readings as we see a parade of
disturbances cross the forecast area. In the dailies... A shortwave
impulse will deliver a reinforcing shot of cold air to the area
for Thursday and Thursday night. The cold begins to ease on
Friday as ridging and rising heights arrive. A warm front lifts
north across the area Friday night with a southerly flow and well
above normal temperatures arriving for the weekend. The more
progressive GFS was again discarded as an outlier with the
approaching frontal system in favor of the slower ECMWF cmc-
global solutions... Which bring the front and steadier band of
precipitation across the forecast area late Saturday night and
Sunday. If the warmer ECMWF cmc-global are correct... Then a
multi day period of well above normal temperatures coupled with
one to two inches of rain could cause some hydro issues given
current ice jam situation. Colder air begins to filter into the
area by Monday behind this system along with a return to below
normal temperatures for the start of the new work week.
Aviation 01z Wednesday through Sunday
Short term... Widespread lifr and ifr conditions remain
entrenched across the forecast area early this evening. This
will likely hold until the cold front can move thru and mix out
the low level cold air. Some -fzra remains... But will come to
an end shortly as steady precip winds down and temps continue to
warm. Otherwise all terminals may see some lingering
-dz and br restrictions to vsby thru the evening. Llws is also
coming to an end as the LLJ crosses the forecast area from W to
e. It should be E of rkd by or just after 00z. Once cold front
moves thru the winds become wly and will help to dry out the low
levels.VFR conditions are expected to quickly return late
tonight. Upslope flow in the mtns will keep hie MVFR with vcsh.
sat night - sun... MVFR with areas of ifr in rain and fog.
Short term... Strong SCA conditions are expected thru Wed night.
thu - fri... Small craft conditions are likely outside the bays.
Sat... Small craft conditions are likely... With gusts approaching
gale outside the bays.
Gyx watches warnings advisories
Marine... Small craft advisory until 9 pm est Wednesday for anz150>154.
Near term... Ekster
short term... Legro
long term... Schwibs
aviation... Legro schwibs
marine... Legro schwibs
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|
|CASM1 - 8418150 - Portland, ME||31 mi||49 min||34°F||34°F||997.9 hPa|
|44032 - Buoy E0104 - Central Maine Shelf||35 mi||75 min||SW 9.7 G 14||41°F||10 ft||996 hPa|
|44007 - PORTLAND 12 NM Southeast of Portland,ME||36 mi||89 min||W 14 G 18||35°F||39°F||7 ft||998.1 hPa (-0.0)||35°F|
|44033 - Buoy F0103 - West Penobscot Bay||48 mi||75 min||SW 9.7 G 12||40°F||36°F||5 ft||995.3 hPa|
Wind History for Wells, ME(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Wiscasset Airport, ME||11 mi||26 min||WSW 4||1.25 mi||Fog/Mist||33°F||33°F||100%||997.5 hPa|
|Auburn-Lewiston, ME||21 mi||23 min||N 0||10.00 mi||Unknown Precip||32°F||32°F||100%||998.9 hPa|
|Augusta, Augusta State Airport, ME||22 mi||26 min||N 0||1.75 mi||Light Rain Fog/Mist||32°F||32°F||100%||996.7 hPa|
Wind History from IWI (wind in knots)
|1 day ago||Calm||Calm||Calm||Calm||Calm||E||NE||NE||NE||NE||NE||NE||NE||NE||NE||NE|
|2 days ago||W||W||Calm||Calm||W||W||W||W||Calm||NW||W||W||NW||Calm||Calm||Calm||Calm||Calm||Calm||Calm|
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
Click for Map
Tue -- 05:25 AM EST 5.66 feet High Tide
Tue -- 07:05 AM EST Sunrise
Tue -- 10:31 AM EST Moonrise
Tue -- 11:39 AM EST 0.45 feet Low Tide
Tue -- 04:37 PM EST Sunset
Tue -- 05:41 PM EST 5.66 feet High Tide
Tue -- 11:23 PM EST Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
|Upper Hell Gate (Sasanoa River |
Click for Map
Tue -- 12:36 AM EST 0.00 knots Slack
Tue -- 03:45 AM EST 0.96 knots Max Flood
Tue -- 07:04 AM EST Sunrise
Tue -- 07:56 AM EST -0.00 knots Slack
Tue -- 10:02 AM EST -0.80 knots Max Ebb
Tue -- 10:30 AM EST Moonrise
Tue -- 12:51 PM EST 0.00 knots Slack
Tue -- 04:04 PM EST 0.87 knots Max Flood
Tue -- 04:37 PM EST Sunset
Tue -- 08:01 PM EST -0.00 knots Slack
Tue -- 10:24 PM EST -0.91 knots Max Ebb
Tue -- 11:23 PM EST Moonset
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 (22,6,7,8)(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.