Sunday, April23, 2017 L-36.com


Marine Weather and Tides
Boothbay Harbor, ME

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 5:40AMSunset 7:35PM Sunday April 23, 2017 3:47 PM EDT (19:47 UTC) Moonrise 4:21AMMoonset 4:12PM Illumination 6% Phase: Waning Crescent; Moon at 27 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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ANZ152 Coastal Waters From Port Clyde, Me To Cape Elizabeth, Me Out 25 Nm- 319 Pm Edt Sun Apr 23 2017
Tonight..S winds 15 to 20 kt...becoming sw 10 to 20 kt after midnight. Seas 3 to 5 ft.
Mon..N winds 5 to 10 kt...becoming se in the afternoon. Seas 2 to 4 ft.
Mon night..SE winds 5 to 10 kt...becoming E after midnight. Seas 1 to 2 ft.
Tue..E winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Rain likely...mainly in the afternoon with vsby 1 to 3 nm.
Tue night..E winds 15 to 20 kt...diminishing to 10 to 15 kt after midnight. Seas 5 to 8 ft. Periods of rain and drizzle. Patchy fog. Vsby 1 to 3 nm.
Wed..SE winds 10 to 15 kt with gusts up to 25 kt. Seas 7 to 10 ft. Periods of rain and drizzle. Areas of fog. Vsby variable to less than one quarter nm.
Wed night..SE winds 10 to 15 kt...diminishing to 5 to 10 kt after midnight. Gusts up to 25 kt. Seas 7 to 10 ft. Periods of rain and drizzle. Areas of fog. Vsby variable to less than one quarter nm.
Thu..S winds 5 to 10 kt. Seas 6 to 8 ft. A chance of drizzle.
Thu night..S winds 5 to 10 kt with gusts up to 20 kt. Seas 5 to 7 ft.
Fri..SW winds around 10 kt. Seas 4 to 6 ft. A chance of showers and tstms.
Fri night..SW winds 5 to 10 kt. Seas 4 to 6 ft. A chance of showers. Winds and seas higher in and near tstms.
ANZ100 319 Pm Edt Sun Apr 23 2017
Synopsis for stonington me to merrimack river ma out to 25 nm.. A weak cold front approaches from the northwest tonight before settling over or just south of the waters Monday. An onshore flow develops later Monday which will strengthen as low pressure moves up the east coast Tuesday into Wednesday... Tracking near the gulf of maine on Wednesday.

7 Day Forecast for Marine Location Near Boothbay Harbor, ME
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location: 43.84, -69.64     debug


Area Discussion for - Gray/Portland, ME
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Fxus61 kgyx 231718
afdgyx
area forecast discussion
national weather service gray me
118 pm edt Sun apr 23 2017

Synopsis
High pressure and drier air will finally build into the region
today. A cold front will drop south into northern new england
tonight into Monday and stall. Low pressure will slowly move up
the eastern seaboard Tuesday and Wednesday with drizzle and
periods of rain. A cold front will slowly approach from the
west Thursday into Friday, before finally crossing the region on
Saturday.

Near term /until 6 pm this evening/
120 pm update... Fine day underway across me and nh with
temperatures into the 50s and 60s with little in the way of
clouds. Seabreeze should continue to push inland this afternoon.

945 am update... Have updated the forecast for minor adjustments
to temperatures and sky cover based on latest trends in
observational and mesoscale model data. Raised MAX temps a
little bit, mainly inland. Have also increased cloud cover for
eastern zones for the next several hours based on latest
satellite data.

6am update... Some 'sunrise surprise' dense fog will quickly
burn off over the next hour.

Prev disc... Overall look for a clearing trend today
as high pressure builds in from the west. At 3 am, clouds
remained in place over much of maine with a few pockets of
clearing in new hampshire. These clouds will move east and as
they do areas which are able to clear before sunrise may see fog
form. Augusta is the usual culprit here with visibilities
already decreasing. Any fog will be patchy and brief as the sun
rises and quickly burns off the moisture. The Sun will allow for
temperatures to climb to the mid to upper 50s by mid morning.

High pressure crests over the region this afternoon, which will
allow a sea breeze to develop. With a weak pressure gradient the
sea breeze should be able to push inland as far as sebago lake.

This south flow will keep high temperatures cooler along the
coast, especially from portland east through penobscot bay.

South of portland, highs will still approach 60 along the water
and be in the low 60s inland.

Short term /6 pm this evening through 6 pm Monday/
The evening will start off with clear skies across the region. A
cold front will approach from quebec, but the high pressure to
our south will push it off to the north. The result is just a
slight chance of showers along the northern border and
increasing clouds through the mountains. Monday the same high
pressure will be in control for much of the day with high
temperatures once again getting into the 60s. Clouds will
increase from the south ahead of an approaching low pressure
system on Monday night.

Long term /Monday night through Saturday/
Models continue to slowly lift an upper level low pressure
system to the northeast. By Monday night, models in good
agreement with surface low pressure near the north carolina and
south carolina border. As the system moves northeast,
precipitation will spread northward through our forecast area.

Patchy drizzle may form along the coast as onshore winds begin
to increase.

By Tuesday night, models remain in relatively good agreement
with the 00z suite, bringing low pressure to the new jersey
coastline. Latest ensemble information supports this track as
well.

Thereafter, the system begins to fill as it reaches new
england on Wednesday, however there will be plenty of moisture
in place for areas of rain and drizzle to continue especially
along the coast.

Qpf: best estimates show about an inch to 1.5 inches along the
coast. Lessor amounts will occur inland near the headwaters.

Therefore, river flooding is not expected at this time.

The system moves east Thursday as a cold front remains well to
our west. Lots of low level moisture will remain in place with
a developing southerly flow, so not much clearing expected.

Latest models suggest that the long awaited cold front will
cross the region Friday. Thunder will be possible with these
showers.

Aviation /17z Sunday through Thursday/
Short term... The region will remainVFR through this afternoon
and into Monday.

Long term... An onshore flow will lead to lowering ceilings into
the MVFR or ifr category during the day Tuesday as rain and
drizzle begins. Conditions continue to lower Tuesday night
through Wednesday night possibly locally to lifr. Conditions
slowly begin to improve Thursday as a light southerly flow
develops.

Marine
Short term... Expect waves to continue to diminish as high
pressure builds in for the day. Low chance of SCA conditions
tonight on the ocean waters.

Long term... Onshore flow increases Monday night into Tuesday as
low pressure slowly moves up the eastern seaboard. Winds will
increase Tuesday night and waves will gradually build into early
Wednesday as the persistent onshore flow continues. Wave
forecasts may be underdone by the current model solutions with
such a persistent onshore flow.

Fire weather
High pressure builds in for Sunday as sunny skies help to dry
out conditions. Rh will drop to near 30 percent across much of
new hampshire. The drier air will linger through Monday before
another system approaches Tuesday spreading rain into the
region.

Tides/coastal flooding
High astronomical tides will continue for the week, increasing
during the midweek period. At portland the astronomical tide is
forecast at 11 ft Tuesday night and 11.5 ft Wednesday night.

With a prolonged period of onshore flow expected, the estofs
prediction for minor storm surge values of about a foot appears
to be reasonable. Winds decrease Wednesday night, however high
water anomaly's will likely continue.

Nearshore waves will not be overly large during this period,
mainly ranging in the 5 to 9 foot range. However, with such high
astronomical tides, nart wave runup matrices and in-house
matrices suggest erosion and minor splash-over may occur
beginning as early as Tuesday night.

Very high astronomical tides will continue for the rest of the
week, with tides peaking out at 11.7 feet on Thursday and Friday
night in portland harbor.

Gyx watches/warnings/advisories
Me... None.

Nh... None.

Marine... None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44032 - Buoy E0104 - Central Maine Shelf 17 mi103 min S 9.7 G 12 42°F 42°F1017.5 hPa
44007 - PORTLAND 12 NM Southeast of Portland,ME 34 mi57 min S 12 G 14 46°F 47°F5 ft1017.3 hPa (-0.7)41°F
CASM1 - 8418150 - Portland, ME 35 mi47 min 54°F 44°F1016.9 hPa (-0.7)
MISM1 - Matinicus Rock, ME 42 mi47 min S 8.9 G 9.9 44°F 1017.1 hPa (-0.7)41°F

Wind History for Wells, ME
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wiscasset Airport, ME8 mi54 minS 710.00 miFair59°F42°F54%1016.9 hPa

Wind History from IWI (wind in knots)
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Last 24hr34CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm345544S7S7
1 day agoE9E6E8
G15
E75E5E4N34CalmNE5NE564E8CalmCalm3CalmE53NE3E3Calm
2 days agoNE5E5E5E5E5E5E6E7NE3E5E4E5E4E9E56E6E6E7E7E6E7E5E8

Tide / Current Tables for Boothbay Harbor, Maine
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Boothbay Harbor
Click for Map
Sun -- 02:46 AM EDT     0.70 feet Low Tide
Sun -- 04:21 AM EDT     Moonrise
Sun -- 05:42 AM EDT     Sunrise
Sun -- 08:59 AM EDT     9.23 feet High Tide
Sun -- 03:11 PM EDT     0.15 feet Low Tide
Sun -- 04:11 PM EDT     Moonset
Sun -- 07:32 PM EDT     Sunset
Sun -- 09:27 PM EDT     9.49 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.32.310.71.535.27.38.79.28.77.35.12.810.20.51.946.48.39.49.38.2

Tide / Current Tables for Lowe Point (northeast of), Sasanoa River, Maine Current
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Lowe Point (northeast of)
Click for Map
Sun -- 01:02 AM EDT     -1.82 knots Max Ebb
Sun -- 04:21 AM EDT     Moonrise
Sun -- 04:51 AM EDT     0.00 knots Slack
Sun -- 05:42 AM EDT     Sunrise
Sun -- 07:10 AM EDT     1.53 knots Max Flood
Sun -- 11:04 AM EDT     -0.00 knots Slack
Sun -- 01:26 PM EDT     -2.04 knots Max Ebb
Sun -- 04:12 PM EDT     Moonset
Sun -- 05:13 PM EDT     0.00 knots Slack
Sun -- 07:32 PM EDT     Sunset
Sun -- 07:39 PM EDT     1.77 knots Max Flood
Sun -- 11:35 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1.3-1.8-1.5-1.1-0.60.11.11.51.41.10.80.1-1.1-1.9-1.9-1.4-0.9-0.20.81.61.71.51.20.6

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Northeast    EDIT
Geos

Wind Forecast for Gray/Portland, ME (15,3,4,5)
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Ground Weather Radar Station Portland, ME
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weather_mapweather_map weather_map

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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.