Tuesday, August21, 2018 L-36.com


Marine Weather and Tides
Falmouth, ME

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Sunrise 5:51AMSunset 7:36PM Tuesday August 21, 2018 6:01 PM EDT (22:01 UTC) Moonrise 4:41PMMoonset 1:22AM Illumination 79% Phase: Waxing Gibbous; Moon at 10 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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ANZ153 Casco Bay- 252 Pm Edt Tue Aug 21 2018
Tonight..SE winds 5 to 10 kt. Seas 1 to 2 ft. Patchy fog this evening, then areas of fog after midnight. A slight chance of showers after midnight.
Wed..S winds 5 to 10 kt. Seas 1 to 2 ft. Showers likely with a chance of tstms. Areas of fog in the morning. Patchy fog in the afternoon.
Wed night..W winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers in the evening.
Thu..NW winds 5 to 10 kt. Seas 2 to 4 ft.
Thu night..NW winds around 5 kt. Seas 1 to 2 ft.
Fri..SW winds 5 to 10 kt. Seas 1 foot or less, then 1 to 2 ft in the afternoon.
Fri night..S winds 5 to 10 kt, becoming sw after midnight. Seas 1 to 2 ft.
Sat..S winds up to 10 kt. Seas around 2 ft.
Sat night..S winds 5 to 10 kt. Seas 2 to 3 ft.
Sun..S winds 5 to 15 kt. Seas 2 to 4 ft.
Sun night..SW winds 5 to 10 kt. Seas 2 to 4 ft. Winds and seas higher in and near tstms.
ANZ100 252 Pm Edt Tue Aug 21 2018
Synopsis for stonington me to merrimack river ma out to 25 nm.. A frontal system crosses the waters Wednesday with high pressure building in behind the cold front Thursday through the weekend.


7 Day Forecast for Marine Location Near Falmouth, ME
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location: 43.71, -70.23     debug


Area Discussion for - Gray/Portland, ME
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Fxus61 kgyx 211850
afdgyx
area forecast discussion
national weather service gray me
250 pm edt Tue aug 21 2018

Synopsis
An upper level trough will move east towards the region tonight
and Wednesday, bringing a chance of showers and thunderstorms
as a cold front moves through. This cold front will usher
somewhat cooler and drier air for late this week before a
gradual warming trend occurs over the upcoming weekend. A
frontal system will bring a chance for showers very late in the
weekend and into early next week.

Near term through tonight
Overnight will see the sfc low track from the london plain of
ontario to N of montreal, with attendant sfc cold front moving
thru ny pa. This will increase the s-se flow and draw more moist
air into the region, although should enough decoupling to push
the bl a few 100 ft above the sfc. This mean coastal stratus
and fog will develop this evening and linger through the night.

There could be some spotty dz, but have left out of the
forecast because there should be enough UVV to prevent dz from
accumulating just above the bl. Otherwise clouds roll in from
the west with the threat of showers after midnight in nh as
initially occlusion warm front moves in. Lows will likely occur
this evening, generally in the 60-65 range, with temps not
moving much during the latter part of the night.

Short term Wednesday through Wednesday night
The occlusion warm front move thru in the morning, with cold
front close behind midday to mid-afternoon. There will likely be
some elevated tsra ahead of the front starting in the morning.

The question remains can the SRN zones of nh and maybe SW me
break out in the warm sector briefly? If so, then there could be
potential for some severe wx as CAPE will punch up close to
1000 j kg tds rise close to 70 , and good bulk shear values
aloft. Thinking the threat will be south of line from klew-
running east thru the nh lakes region to the kleb area. I have
not put severe wording in the forecast because I think the risk
is small at this point, given model rh and cloud fields. Also,
the CAPE does drop off if you start from an elevated level.

Otherwise showers and storms should wind down from west to east
mid-late afternoon. Highs will range from near 80 in SRN nh, to
around 70 in the moutnains and on the mid-coast.

Any lingering showers will end early evening, mainly in ern
zones, if anywhere, with clearing. Should be enough of wnw flow
behind the front to preclude fog formation, but, as usual some
sheltered mountain valleys could see some. Lows will range form
50 in the N to 60 in the far s.

Long term Thursday through Monday
Thursday begins with surface high pressure in place over new england
and a long wave upper level centered overhead. The surface high
pressure will remain in place through at least Saturday, while the
upper level trough slides offshore and upper level ridging moves in
for Friday. Saturday will be the transition day for the upper level
patters as the flow turns to the southwest, allowing dewpoints to
start creeping up. Low pressure moving through the great lakes will
have some difficulty staying together as it approaches on Sunday and
into Monday. The best chance for precipitation with the system will
be over the mountains, while the coastal plain will likely stay
mostly dry.

Aviation 19z Tuesday through Sunday
Short term... Probably all terminals will drop to ifr or lower in
low clouds and fog tonight. Coastal terminals will probably hit
ifr early this evening, inland areas a little later. Khie may
be the exception as SE downslope could limit it to MVFR
overnight, but will probably see a few hours ifr Wed morning.

Ifr likely to linger thru the morning on the coast, with some
improvement to MVFR inland possible.VFR should return to all
terminals mid-late afternoon wed, and should persist thru wed
night.

Long term...VFR conditions expected throughout the period.

Marine
Short term... Winds seas to approach SCA levels late Wed into
wed night, as S flow ahead of front picks up, the switches to
nw behind the front Wed night and becomes gusty for a few
hours. Will hold off on SCA for now, but may need one later.

Long term... No flags expected.

Gyx watches warnings advisories
Me... None.

Nh... None.

Marine... None.

Near term... Cempa
short term... Cempa
long term... Pohl


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CASM1 - 8418150 - Portland, ME 4 mi31 min 70°F 64°F1017.6 hPa
44007 - PORTLAND 12 NM Southeast of Portland,ME 14 mi71 min SSE 7.8 G 9.7 65°F 66°F4 ft1017.7 hPa (-1.9)60°F
WEXM1 - Wells Reserve, ME 31 mi61 min SE 2.9 69°F 62°F
WELM1 - 8419317 - Wells, ME 32 mi31 min SSE 6 G 8 67°F 69°F1017.7 hPa
44030 - Buoy B0102 - Western Maine Shelf 38 mi57 min SE 5.8 G 7.8 66°F 67°F5 ft1016.2 hPa
44032 - Buoy E0104 - Central Maine Shelf 46 mi57 min E 3.9 G 5.8 61°F 63°F4 ft1016.9 hPa

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Portland, Portland International Jetport, ME6 mi70 minS 710.00 miPartly Cloudy69°F60°F73%1017.8 hPa
Auburn-Lewiston, ME24 mi65 minSSE 710.00 mi71°F60°F68%1018.9 hPa

Wind History from PWM (wind in knots)
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Last 24hrSE6SE4SE3CalmW3CalmNW4--CalmCalmCalmCalmCalmCalmCalmCalmE5E6E9
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1 day agoE5E6E4E6NE5N5N4NW3CalmCalmN4CalmN5NE5NE5NE5E6SE10E11E10
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2 days agoN8NE12
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N9N5N5N5N5N4N4N5CalmN5N3N7NE11NE12NE9E7E7SE9E11E9E7
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Tide / Current Tables for Presumpscot River Bridge, Maine
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Presumpscot River Bridge
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Tue -- 01:22 AM EDT     Moonset
Tue -- 02:21 AM EDT     0.92 feet Low Tide
Tue -- 05:52 AM EDT     Sunrise
Tue -- 08:31 AM EDT     8.31 feet High Tide
Tue -- 02:31 PM EDT     1.66 feet Low Tide
Tue -- 04:41 PM EDT     Moonrise
Tue -- 07:35 PM EDT     Sunset
Tue -- 08:45 PM EDT     9.30 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.21.711.12.345.97.48.28.27.35.742.61.81.82.74.46.4899.38.57

Tide / Current Tables for Cliff Island, Luckse Sound, Maine
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Cliff Island
Click for Map
Tue -- 01:21 AM EDT     Moonset
Tue -- 02:15 AM EDT     0.86 feet Low Tide
Tue -- 05:51 AM EDT     Sunrise
Tue -- 08:28 AM EDT     8.23 feet High Tide
Tue -- 02:25 PM EDT     1.57 feet Low Tide
Tue -- 04:40 PM EDT     Moonrise
Tue -- 07:34 PM EDT     Sunset
Tue -- 08:42 PM EDT     9.20 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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31.60.91.12.34.15.97.38.18.17.25.53.82.41.61.72.84.56.4899.28.46.7

Weather Map and Satellite Images
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wmap_A
GOES Local Image of Northeast    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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Gray/Portland, ME (18,4,5,8)
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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.