Monday, October14, 2019 L-36.com


Marine Weather and Tides
Littlejohn Island, ME

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:51AMSunset 6:00PM Monday October 14, 2019 9:53 PM EDT (01:53 UTC) Moonrise 6:47PMMoonset 7:21AM Illumination 98% Phase: Waning Gibbous; Moon at 16 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- 944 Pm Edt Mon Oct 14 2019
Rest of tonight..SW winds 5 to 10 kt, becoming nw with gusts up to 20 kt. Seas 2 to 3 ft. A slight chance of showers late this evening. Patchy fog.
Tue..NW winds around 10 kt, becoming W in the afternoon. Seas 2 to 3 ft.
Tue night..SW winds around 5 kt. Seas 1 to 2 ft in the evening, then 1 foot or less.
Wed..SE winds 5 to 15 kt, becoming 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 1 to 2 ft.
Wed night..E winds 10 to 20 kt with gusts up to 25 kt, increasing to 15 to 25 kt with gusts up to 35 kt after midnight. Seas 2 to 4 ft. Rain. Vsby 1 to 3 nm.
Thu..NE winds 15 to 25 kt with gusts up to 35 kt, becoming W around 15 kt with gusts up to 25 kt in the afternoon. Seas 2 to 4 ft. Rain. Vsby 1 to 3 nm in the morning.
Thu night..W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Rain in the evening.
Fri..NW winds 10 to 15 kt with gusts up to 25 kt. Seas 1 to 2 ft.
Fri night..NW winds 10 to 15 kt with gusts up to 20 kt. Seas 1 foot or less.
Sat..W winds 5 to 10 kt. Seas 1 foot or less.
Sat night..SW winds 5 to 10 kt. Seas 1 foot or less.
ANZ100 944 Pm Edt Mon Oct 14 2019
Synopsis for stonington me to merrimack river ma out to 25 nm.. A front will move across the waters this evening shifting the wind to the northwest with high pressure cresting over the gulf of maine by Tuesday evening. Low pressure moving up the east coast will strengthen rapidly when it reaches the gulf of maine Wednesday night with gales possible as the low moves away on Thursday. High pressure builds in from the west for the rest of the week. &&


7 Day Forecast for Marine Location Near Littlejohn Island, ME
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location: 43.78, -70.08     debug


Area Discussion for - Gray/Portland, ME
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Fxus61 kgyx 142233 aaa
afdgyx
area forecast discussion... Updated
national weather service gray me
633 pm edt Mon oct 14 2019

Synopsis
A cold front moves across the area tonight with a few showers
possible in northern areas. High pressure builds in behind the
front for Tuesday with pleasant weather expected. The next low
pressure system begins affecting our area, with low pressure
strengthening rapidly as it enters the gulf of maine Wednesday
night. This will bring a period of heavy rain to northern new
england, with gusty west winds behind the low on Thursday. High
pressure builds in for the weekend.

Near term until 6 am Tuesday morning
630 pm update...

just a few minor changes to the forecast this evening as high
pressure crosses the forecast area tonight. Readings will
eventually drop into the mid to upper 30s north to lower to mid
40s south overnight.

Previous discussion...

a weak cold front will cross the region late this evening.

Moisture is rather limited with this system however scattered
showers will be possible, mainly over northern areas.

There is very little gradient behind the front at the surface
overnight. It is a challenging forecast in that some patchy fog
may form once again over the interior if winds decouple with
time. Some patchy fog may enter the midcoast region once again
as well.

The coldest overnight lows will be over western sections where
cold air advection will allow for h8 temperatures to fall below
0c. Lows will range from the mid 30s north and west to the mid
40s further to the south and east.

Short term 6 am Tuesday morning through Tuesday night
A weak area of high pressure will crest overhead on Tuesday.

This will allow for sunshine and relatively light winds
throughout the day.

Low pressure begins to move east from the great lakes region
Tuesday night. Warm air advection ahead of the system may allow
for an increase in cloudiness over western areas later at night.

Daytime highs will be limited to the 50s in most areas.

This sets the stage for rapid cyclogenesis along the mid
atlantic coast for the extended portion of the forecast.

Long term Wednesday through Monday
The ensemble and deterministic model solutions are in decent
agreement on the long wave pattern through the upcoming weekend
and the start of the new work week. We begin the period with weak
ridging ahead of an upper low over the great lakes. At the
surface... A ridge of high pressure will retreat well offshore
during the day Wednesday as low pressure and a trailing cold
front approach from the great lakes. An impulse pivoting around
the upper low will result in secondary low development along the
trailing front over the DELMARVA region by Wednesday afternoon.

The deepening low center will ride northeast along the coast to
near kpsm portsmouth by 12z Thursday. Strengthening onshore
flow and a 70 kt low level jet in advance of this low should
produce a band of heavy rain Wednesday night into Thursday
morning. Steadier and heavier precipitation will taper from
southwest to northeast during the afternoon following the
passage of the surface low. Wrap around moisture and upslope
flow will result in residual clouds and a few upslope rain snow
showers Thursday night and Friday across the higher terrain. A
ridge of high pressure follows this departing storm system for
Saturday. A weakening and moisture starved cold front will cross
the area Sunday marked by a few clouds and perhaps a mountain
sprinkle. The next disturbance approaches from the great lakes
for late Monday into Tuesday.

Aviation 22z Monday through Saturday
Short term... Lower ceiling and patch fog will remain possible
along the midcoast region and across the inland valleys tonight
with locally ifr or lifr conditions. A few showers may cross
northern areas. Drier Tuesday into Tuesday night as high
pressure builds over the area.

Long term...

wed am... LCL ifr psb in am valley stratus and fog.

Wed night - thu... Ifr in ra and fog.

Sfc winds gusting up to 30 kt.

Fri... Sct MVFR psb in mtn -shra.

Nw surface winds gusting up to 25 kt.

Marine
Short term... Winds shift to the west behind a front late tonight
and Tuesday morning. Patchy fog is possible for much of the
night. Winds and seas remain below SCA thresholds through
Tuesday night.

Long term...

wed pm - thu... Gales likely, with gusts approaching storm possible
outside the bays.

Fri... Sca's likely.

Hydrology
Rain heavy at times Wednesday night into Thursday may result in
urban and poor drainage flooding. At this time river flooding is
not expected, but will have to watch our typically flashy
rivers in the higher terrain where QPF could be higher.

Gyx watches warnings advisories
Me... None.

Nh... None.

Marine... None.

Near term... Hanes
short term... Cannon
long term... Schwibs


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CASM1 - 8418150 - Portland, ME 12 mi60 min 56°F 56°F
44007 - PORTLAND 12 NM Southeast of Portland,ME 18 mi64 min S 3.9 G 3.9 56°F 57°F3 ft1013.3 hPa (+0.8)56°F
44032 - Buoy E0104 - Central Maine Shelf 39 mi110 min N 1.9 G 1.9 54°F 55°F3 ft1012.7 hPa
WEXM1 - Wells Reserve, ME 39 mi54 min Calm 56°F 54°F
WELM1 - 8419317 - Wells, ME 41 mi60 min Calm G 1 57°F 58°F1013.8 hPa
44030 - Buoy B0102 - Western Maine Shelf 45 mi110 min SSE 5.8 G 5.8 56°F 57°F4 ft1013.2 hPa

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Portland, Portland International Jetport, ME15 mi63 minN 010.00 miOvercast57°F51°F81%1013.9 hPa
Auburn-Lewiston, ME22 mi58 minSSW 310.00 miOvercast56°F54°F93%1015 hPa
Wiscasset Airport, ME23 mi61 minSE 310.00 miOvercast56°F53°F90%1014.3 hPa

Link to 5 minute data for KPWM

Wind History from PWM (wind in knots)
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Last 24hrCalmCalmCalmCalmS5CalmS3SE3CalmE3CalmCalmS6SE11S9S8S9S5S8SE9SE7S3CalmCalm
1 day agoN3W4NW4W4W3CalmCalmSW3CalmCalmCalmNW5Calm3NE34W4SE5S6S7CalmCalmCalmCalm
2 days agoNE14
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N8N10NE10N10N8N7N9N8N10N9N10N9N5N7N8N6N4N4NW3Calm

Tide / Current Tables for Chebeague Point, Great Chebeague Island, Maine
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Chebeague Point
Click for Map
Mon -- 05:51 AM EDT     0.57 feet Low Tide
Mon -- 06:53 AM EDT     Sunrise
Mon -- 07:21 AM EDT     Moonset
Mon -- 12:06 PM EDT     9.50 feet High Tide
Mon -- 05:58 PM EDT     Sunset
Mon -- 06:11 PM EDT     0.26 feet Low Tide
Mon -- 06:46 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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9.38.674.62.410.61.32.95.17.38.99.59.17.65.32.91.10.30.61.946.38.2

Tide / Current Tables for Upper Hell Gate (Sasanoa River, Maine) Current
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Upper Hell Gate (Sasanoa River
Click for Map
Mon -- 12:32 AM EDT     0.86 knots Max Flood
Mon -- 04:28 AM EDT     -0.00 knots Slack
Mon -- 06:30 AM EDT     -0.84 knots Max Ebb
Mon -- 06:52 AM EDT     Sunrise
Mon -- 07:19 AM EDT     Moonset
Mon -- 10:03 AM EDT     0.00 knots Slack
Mon -- 12:48 PM EDT     0.96 knots Max Flood
Mon -- 04:50 PM EDT     -0.00 knots Slack
Mon -- 05:57 PM EDT     Sunset
Mon -- 06:45 PM EDT     Moonrise
Mon -- 06:54 PM EDT     -0.89 knots Max Ebb
Mon -- 10:32 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.80.80.70.3-0.3-0.8-0.8-0.6-0.4-00.50.910.90.80.5-0.1-0.7-0.9-0.7-0.5-0.20.2

Weather Map
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wmap_A
GEOS 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 (21,6,7,8)
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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.