Monday, September24, 2018 L-36.com


Marine Weather and Tides
Castine, ME

Version 3.4
What's New / NOTES
9/17/2018 XTide broke when 1and1 "upgraded" my server. It has been esculated. I am sorry for the problem.

Sunrise 6:24AMSunset 6:29PM Monday September 24, 2018 12:59 PM EDT (16:59 UTC) Moonrise 6:42PMMoonset 5:37AM Illumination 100% Phase: Full Moon; Moon at 15 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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ANZ151 Penobscot Bay- 924 Am Edt Mon Sep 24 2018
.small craft advisory in effect until 2 pm edt this afternoon...
Rest of today..NE winds 10 to 15 kt, becoming E 5 to 10 kt this afternoon. Gusts up to 25 kt. Seas 1 to 2 ft.
Tonight..E winds 5 to 10 kt. Seas 1 foot or less, then 1 to 2 ft after midnight.
Tue..SE winds 10 to 15 kt with gusts up to 25 kt. Seas 1 to 2 ft. Rain likely in the afternoon.
Tue night..SE winds 10 to 20 kt, becoming S 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft. Rain.
Wed..S winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 2 to 4 ft. Rain in the morning, then showers likely with scattered tstms in the afternoon.
Wed night..SW winds 10 to 15 kt, becoming W after midnight. Gusts up to 25 kt. Seas 2 to 3 ft. Scattered tstms in the evening. Showers likely.
Thu..N winds 5 to 10 kt. Seas around 2 ft.
Thu night..NE winds 5 to 10 kt. Seas 1 to 2 ft.
Fri..E winds 5 to 10 kt. Seas 1 foot or less. A chance of showers.
Fri night..SW winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. Winds and seas higher in and near tstms.
ANZ100 924 Am Edt Mon Sep 24 2018
Synopsis for stonington me to merrimack river ma out to 25 nm.. High pressure will crest over the region early today before shifting east this afternoon and tonight. A warm front will approach from the southwest on Tuesday and will lift into northern maine Tuesday night. Low pressure will move northeast through central quebec on Wednesday and will drive a trailing cold front through the region Wednesday night. High pressure will build in from the west on Thursday. &&


7 Day Forecast for Marine Location Near Castine, ME
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location: 44.39, -68.8     debug


Area Discussion for - Gray/Portland, ME
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Fxus61 kgyx 241328
afdgyx
area forecast discussion
national weather service gray me
928 am edt Mon sep 24 2018

Synopsis
A real taste of fall is expected for a change today, with
temperatures staying in the 50s for the majority of new
hampshire and western maine. The high pressure responsible for
the cooler weather will crest over the area today before
shifting east tonight. That allows a warm front to move
northward and bring increasing clouds and eventually
temperatures too. Along with the front will come a period of
rain Tuesday into Tuesday evening, some of which may be heavy at
times. A strong low pressure will move northeast through
central quebec on Wednesday and will drive a trailing cold front
through the through the day.

Near term until 6 pm this evening
930am update... Just some adjustments to the cloud cover. Clouds
continue to erode over new hampshire with ceilings increasing
through the day.

Update... Only forecast changes were to sky cover again. Backdoor
front is pushing inland from seacoast nh now... And along the
white mtns to the monadnocks marine convective clouds are giving
way to more of an upslope stratus. Drier air is quickly moving
in from the W and eroding that cloud layer however. So while i
have increased clouds in the next couple hours... They are not
expected to linger long.

Previous discussion... Cold front is sagging thru the forecast
area at this hour. NE breeze is picking up behind the front and
dewpoints are falling... But mechanical mixing is keeping temps a
little higher than previous forecasts. That will make the frost
advisory tough to verify on the zone level... But sheltered
areas that are protected from the wind will still have a chance.

With that in mind I will keep the frost advisory going.

Otherwise it will be a cool day on tap... With readings mainly in
the 50s. Far WRN zones with downsloping ene winds may be the
only place that takes a run at 60 degrees.

Short term 6 pm this evening through 6 pm Tuesday
Upper ridge axis crest over the region early tonight with return
flow following aloft. That leaves a little bit of a tricky
forecast for low temps... As initially clear skies could make for
a quick early drop. Eventually SE surface winds increase and we
should see temps start to creep back up... Especially as clouds
thicken and lower after midnight.

A warm front currently hanging out by the mason-dixon will be
drawn nwd early tue. Early on enough influence from the
departing surface high will keep the area cold air dammed in.

Strong SE turning S winds in the low to mid levels will result
in some terrain influence to rainfall as it works in after 8 am.

Eventually as flow from h9 to h8 turns sly... The damming will
weaken and temps will grudgingly start to warm up.

With the approach of pwats near 1.75 inches... And the strong llj
forcing... Some heavy rainfall is possible. This will be possible
especially near the coastal front and in the favored S se
upslope zones.

Long term Tuesday night through Sunday
Rain will be heavy at times Tuesday evening before tapering to
showers after midnight as the warm front lifts northeast of the
region. Lows overnight will range through the 50s to near 60.

Cold front will approach from the west on Wednesday bringing
showers back into northwest zones by early afternoon. Will see
marginal instability and good forcing along the front as it
presses in from the west during the afternoon along with
moderate to strong shear as associated shortwave pushes in from
the west. SPC has much of the forecast area in slight risk for
severe but this risk will be moderated somewhat by modest cape
values. Main threat with these storms would be damaging winds
during the late afternoon and early evening. In addition...

pwat's approaching 2.00 inches will increase the potential for
heavy rainfall associated with stronger cells. Expect a warm and
muggy day with highs generally ranging through the 70s.

Cold front will push offshore late Wednesday evening bringing an
end to showers and thunderstorms and clearing skies after
midnight as high pressure pushes in from the west. Lows will
range from the mid 40s north to the mid 50s south.

High pressure will continue to build in from the west on
Thursday and will crest over the region in the afternoon. Aside
from variable high clouds... Should see a mostly sunny day with
highs ranging through the 60s.

High pressure will shift east into the maritimes Thursday night
as the next shortwave approaches from the west. Looking for
variable high and mid level clouds overnight as a weak wave
spins up on stalled frontal boundary south of new england. Lows
will range through the 40s in northern and central zones and
upper 40s to lower 50s in the south.

Shortwave will begin to shear out and flatten as it rotates
into the region on Friday. Associated front will push in from
the west in the afternoon but expect little in the way of shower
activity as best forcing remains north of the border with this
moisture starved system. Have generally stuck close to sb
numbers for pops which only amount to low chance. Highs will top
out in the lower to mid 60s.

High pressure will build in from the west Friday night and
Saturday. Looking for partly cloudy skies Friday night and a
mix of Sun and clouds on Saturday.

Another cold front will drop south through the region Saturday
night bringing a brief round of showers and a re-enforcing shot
of cooler air for the end of the weekend on Sunday.

Aviation 14z Monday through Friday
Short term... Backing off fog threat for tonight as at least a
light breeze behind the cold front as well as cooling dewpoints
will be working against it. OtherwiseVFR conditions thru
tonight. Developing quickly around 12z lowering CIGS and ra will
move in from the SW as a warm front approaches. Areas of ifr
will be likely thru the day tue... And may linger into the
overnight. Strong low to mid level winds will also support a
period of llws developing Tue behind the warm front.

Long term...

areas of MVFR ifr ceilings Tuesday night and Wednesday. Becoming
vfr Wednesday night... Persisting through Friday.

Marine
Short term... Backdoor front working down the coast now with
winds picking up and building seas. SCA remains in effect thru
this afternoon. Winds and seas will come down later today... And
a brief period of sub-sca conditions are likely. Strengthening
se flow will develop tonight and an extended period of scas are
likely thru tue.

Long term...

sca's likely Tuesday night through Wednesday night.

Gyx watches warnings advisories
Me... None.

Nh... None.

Marine... Small craft advisory until 2 pm edt this afternoon for
anz150>152-154.

Synopsis...

near term... Curtis
short term...

long term...

aviation...

marine...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44033 - Buoy F0103 - West Penobscot Bay 25 mi115 min NNE 12 G 14 49°F 58°F2 ft1037 hPa
ATGM1 - 8413320 - Bar Harbor, ME 32 mi41 min NE 6 G 8 50°F 57°F1037.4 hPa
44034 - Buoy I0103 - Eastern Maine Shelf 42 mi115 min NE 16 G 19 48°F 56°F5 ft1036.5 hPa
MISM1 - Matinicus Rock, ME 42 mi59 min ENE 16 G 19 48°F 1037.3 hPa (+1.4)
MDRM1 - Mt Desert Rock, ME 46 mi59 min N 17 G 19 48°F 1037.4 hPa (+1.3)

Wind History for Bar Harbor, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bar Harbor, Hancock County-Bar Harbor Airport, ME23 mi63 minN 710.00 miFair52°F26°F37%1038 hPa

Wind History from BHB (wind in knots)
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Last 24hrS12S11S11SW13SW11SW6SW7SW5SW3CalmN11N13N10
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NW5W4W3CalmCalmCalmCalmCalmCalmCalmCalmN3CalmCalmCalmCalmSE4S10S9
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Tide / Current Tables for Castine, Penobscot Bay, Maine
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Little Deer Isle, Penobscot Bay, Maine
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Tide / Current data from XTide NOT FOR NAVIGATION
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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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Wind Forecast for Gray/Portland, ME (12,3,4,5)
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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.