Thursday, February22, 2018 L-36.com


Marine Weather and Tides
Littlejohn Island, ME

Version 3.4
What's New / NOTES
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 6:25AMSunset 5:21PM Thursday February 22, 2018 5:58 PM EST (22:58 UTC) Moonrise 11:11AMMoonset 12:30AM Illumination 52% Phase: First Quarter Moon; Moon at 8 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- 330 Pm Est Thu Feb 22 2018
Tonight..NW winds around 5 kt, becoming ne around 5 kt after midnight. Seas 1 foot or less. A slight chance of snow this evening.
Fri..E winds 5 to 10 kt, becoming S 5 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 foot or less, then 1 to 2 ft in the afternoon. A chance of rain in the afternoon.
Fri night..S winds 10 to 15 kt, becoming sw 5 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Rain likely in the evening.
Sat..NW winds 5 to 10 kt. Seas 1 to 2 ft.
Sat night..N winds around 10 kt, becoming ne with gusts up to 20 kt after midnight. Seas 1 foot or less, then 2 to 3 ft after midnight.
Sun..E winds 10 to 20 kt, becoming se 15 to 20 kt in the afternoon. Seas 3 to 5 ft. A chance of snow or rain in the morning, then rain or snow in the afternoon.
Sun night..E winds 5 to 15 kt with gusts up to 20 kt, becoming N around 5 kt after midnight. Seas 3 to 5 ft. Rain, mainly in the evening.
Mon..W winds 5 to 10 kt. Seas 2 to 4 ft.
Mon night..NW winds around 10 kt with gusts up to 20 kt. Seas around 2 ft.
Tue..W winds 5 to 10 kt. Seas 1 to 2 ft.
Tue night..W winds 5 to 10 kt. Seas 1 foot or less.
ANZ100 330 Pm Est Thu Feb 22 2018
Synopsis for stonington me to merrimack river ma out to 25 nm.. High pressure builds into northern maine tonight and then eastward into nova scotia on Friday. A weak trough crosses the region Friday night with high pressure building behind it into the gulf of saint lawrence by Sunday morning. The next storm system will drag a front across the waters Sunday into Sunday night with weak low pressure forming along the front as it moves through the gulf of maine.

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 222025
afdgyx
area forecast discussion
national weather service gray me
325 pm est Thu feb 22 2018

Synopsis
High pressure will build across the area tonight through early
Friday. A weak weather systems will move through the region
Friday afternoon and evening followed by high pressure for
Saturday. Another weather system will bring a mixture of
precipitation for Sunday. Fair weather returns for early next
week.

Near term tonight
Area of snow along the northern edge of precipitation shield
associated with a broad wave moving through southern new england
will continue to bring some light snow to the southern part of
the forecast area this evening. Still expecting accumulations of
an inch or less for the most part with this coming to an end
fairly quickly this evening. High pressure building in from the
west will move into northern maine tonight. This should set up a
pretty good radiational cooling night, especially in the
northern part of the area where single digit lows are forecast.

In the south a fresh snow cover could wreak havoc on overnight
lows but for now have indicated teens and low 20s.

Short term Friday and Friday night
As high pressure moves east on Friday it will set up a southeast
flow around it in advance of the next approaching system. This
next wave brings another round of precipitation arriving in the
afternoon, this time affecting just about the entire forecast
area. Think this will initially start as snow, but could see a
transition to freezing rain as temperatures aloft warm behind
the warm front and rain in areas that warm above freezing.

Southeast flow in the lowest levels could initiate damming in
interior southwest maine keeping temperatures down there, but
confidence is not very high. If temperatures get colder than
expected tonight, this could be a factor which encourages low
level damming and could enhance the freezing rain threat Friday
into Friday night. Confidence currently not high enough for an
advisory, but one may eventually be needed. This precipitation
will move out overnight Friday night with high pressure building
in again from the west.

Long term Saturday through Thursday
High pressure will provide for a mostly sunny day across the
region for Saturday. Models are not in good agreement for
temperatures on Saturday with the GFS showing some rather mild
readings. Have compromised with highs ranging from the lower 40s
north to the lower 50s south. The high moves overhead Saturday
night leading to good radiational cooling.

Precipitation will spread northeastward across the region Sunday
morning, initially starting as snow but likely transitioning to
rain or a mix during the day. There remains quite a bit of
uncertainty in the forecast precipitation type during the day
Sunday. Models all show warming aloft from morning to late
evening from south to north. At the same time, the surface high
will provide a source of colder air feeding into the system near
the surface. Surface temps across much of the region will
likely remain in the low to mid 30s for much of the day. The
precipitation will start as snow all areas with advisory
snowfall amounts possible in inland areas. Although some
freezing rain is possible, the recent warm temperatures combined
with late february Sun should help to keep the impact of any
freezing rain to a minimum.

The precipitation comes to an end Sunday night with another
relatively mild day for Monday with temperatures mainly in the
40s. Mainly fair weather is expected for Tuesday through
Thursday with a slight cooling trend and the only precipitation
being some mountain snow showers.

Aviation 20z Thursday through Tuesday
Short term... After the snow moves out of southern areas this
evening, we should see conditions goVFR for all areas. Another
round of precipitation is expected Friday afternoon into Friday
night. This may start as snow before changing to freezing rain
or rain depending on temperatures. Ifr conditions seem likely
during this period, but improve after midnight.

Long term...VFR conditions Saturday. Ifr to lifr conditions
Sunday in mixed precipitation, followed byVFR conditions
Monday and Tuesday.

Marine
Short term... High pressure crosses the waters tonight with a
return southeast flow tomorrow until a cold front moves through
early Saturday morning. Generally expecting winds to stay below
advisory levels, but a few gusts to 25 kt here or there would
not be out of the question mainly Friday night with the cold
front.

Long term... Scas likely Sunday into Tuesday, otherwise conditions
expected to be below SCA criteria..

Gyx watches warnings advisories
Me... None.

Nh... None.

Marine... None.

Near term... Kimble
short term... Kimble
long term... Jensenius


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CASM1 - 8418150 - Portland, ME 12 mi41 min 35°F 38°F1038.2 hPa
44007 - PORTLAND 12 NM Southeast of Portland,ME 18 mi69 min SW 9.7 G 12 32°F 40°F2 ft1037.8 hPa (+0.6)30°F
WEXM1 - Wells Reserve, ME 39 mi59 min Calm 32°F 31°F
44032 - Buoy E0104 - Central Maine Shelf 39 mi115 min N 9.7 G 12 36°F 2 ft1036.3 hPa
WELM1 - 8419317 - Wells, ME 41 mi41 min Calm G 1 32°F 39°F1039.1 hPa
44030 - Buoy B0102 - Western Maine Shelf 45 mi115 min NNE 7.8 G 7.8 32°F 40°F2 ft

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
Portland, Portland International Jetport, ME15 mi68 minWSW 710.00 miOvercast34°F27°F76%1038.4 hPa
Auburn-Lewiston, ME22 mi63 minN 510.00 miOvercast36°F9°F32%1039.4 hPa
Wiscasset Airport, ME23 mi66 minN 010.00 miOvercast36°F9°F32%1038.3 hPa

Wind History from PWM (wind in knots)
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Last 24hrNW14NW10NW11
G17
NW8N10NW1064N64N8N9N95NE85NW6NW74N3W4W6W7S7
1 day ago353NW3W3W3CalmCalmCalmSW4CalmCalmS3Calm4S8S9S10S10S9S12S11S7S9
2 days agoS8S7
G17
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S3S6S3CalmCalmCalmCalmNW3Calm54CalmNE3NE5E4E33NE7NE9NE35

Tide / Current Tables for Chebeague Point, Great Chebeague Island, Maine
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Chebeague Point
Click for Map
Thu -- 03:03 AM EST     9.52 feet High Tide
Thu -- 06:28 AM EST     Sunrise
Thu -- 09:16 AM EST     0.11 feet Low Tide
Thu -- 10:11 AM EST     Moonrise
Thu -- 03:33 PM EST     8.80 feet High Tide
Thu -- 05:19 PM EST     Sunset
Thu -- 09:35 PM EST     0.40 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
57.28.99.597.65.53.11.10.10.41.63.55.67.58.68.77.86.13.91.90.60.51.4

Tide / Current Tables for Upper Hell Gate (Sasanoa River, Maine) Current
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Upper Hell Gate (Sasanoa River
Click for Map
Thu -- 12:47 AM EST     0.00 knots Slack
Thu -- 04:05 AM EST     1.04 knots Max Flood
Thu -- 06:27 AM EST     Sunrise
Thu -- 08:11 AM EST     -0.00 knots Slack
Thu -- 10:09 AM EST     Moonrise
Thu -- 10:26 AM EST     -0.92 knots Max Ebb
Thu -- 01:29 PM EST     0.00 knots Slack
Thu -- 04:31 PM EST     0.90 knots Max Flood
Thu -- 05:18 PM EST     Sunset
Thu -- 08:31 PM EST     -0.00 knots Slack
Thu -- 10:49 PM EST     -0.89 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.30.10.40.810.90.60.40.1-0.4-0.9-0.8-0.5-0.10.20.50.90.90.60.40.2-0.2-0.7-0.9

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 (17,4,5,8)
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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.