Wednesday, January23, 2019 L-36.com


Marine Weather and Tides
Littlejohn Island, ME

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:04AMSunset 4:39PM Wednesday January 23, 2019 3:58 AM EST (08:58 UTC) Moonrise 8:54PMMoonset 9:56AM Illumination 94% Phase: Waning Gibbous; Moon at 17 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- 321 Am Est Wed Jan 23 2019
.small craft advisory in effect from 7 am est this morning through this evening...
.storm watch in effect from Thursday morning through Thursday evening...
Today..SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of rain this afternoon with vsby 1 to 3 nm.
Tonight..SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Rain.
Thu..SW winds 15 to 20 kt with gusts up to 50 kt. Seas 3 to 5 ft. Rain. Areas of fog. Vsby 1 to 3 nm.
Thu night..NW winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. A chance of rain in the evening. Areas of fog in the evening with vsby 1 to 3 nm.
Fri..W winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 to 5 ft.
Fri night..W winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 4 ft.
Sat..W winds 5 to 10 kt. Seas 2 to 3 ft.
Sat night..N winds 5 to 10 kt. Seas 2 to 3 ft.
Sun..E winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of snow. Vsby 1 to 3 nm.
Sun night..E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of snow. Vsby 1 to 3 nm.
ANZ100 321 Am Est Wed Jan 23 2019
Synopsis for stonington me to merrimack river ma out to 25 nm.. Low pressure over the great lakes will lift a warm front northward across the region today. This low will drag a trailing cold front across the area on Thursday. A secondary cold front will approach from the northwest Thursday night and will drop south through the region on Friday. Weak low pressure will approach from the west Friday night and will cross the region on Saturday. &&


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 230205 cca
afdgyx
area forecast discussion... Corrected
national weather service gray me
905 pm est Tue jan 22 2019

Synopsis
Low pressure moving northeast through the great lakes will
lift a warm front through the region on Wednesday. Low pressure
will continue northeast through southern quebec Wednesday night
and will drive a trailing cold front into western new england by
Thursday morning. The front will push east through the region
on Thursday. A secondary cold front will approach from the
northwest Thursday night and will drop south through the region
on Friday. Weak low pressure will approach from the west Friday
night and will cross the region on Saturday.

Near term until 6 am Wednesday morning
830 pm update... Have made a few changes to the going forecast.

After perusal of latest mesoscale model guidance, I have made a
few changes to the winter weather advisory. The first change is
to start it after the morning commute in nh since precipitation
that falls prior to that will likely be just some spotty light
snow and perhaps some sleet. Warming aloft does not occur until
afternoon, so that's when the main threat for light freezing rain
will be. The second change is to add southwestern nh to the
advisory where elevations of roughly 1000-2500 ft should remain
cold enough through the afternoon and early evening for light
freezing rain.

Otherwise, it's possible we'll have to expand the
advisory a tier of counties further east depending on how long
the low level sub-freezing air hangs on. In addition, road
surfaces (especially bridges and shaded roadways) east of the
current advisory area will still likely be cold enough to allow
rain to freeze despite temps rising into the mid 30s. This is
something the next shift have to watch out for late tomorrow
afternoon and early evening.

7 pm update... Little change to the going forecast this evening.

Winds continue to diminish and clouds will continue to increase as
the evening progresses.

Previously...

wind continue to diminish and should become light after sunset.

This will allow some early rad cooling, and temps will fall to
their lows during this evening, which will range from zero to 5
above in the n, to 10-15 in the s. Clouds begin to move in late
this evening, and SW flow picks up ahead of the next system,
and temps will slowly rise after midnight. Looks like any precip
should hold off until Wed morning, although could see some
light snow moving into NRN nh toward daybreak.

Short term 6 am Wednesday morning through 6 pm Wednesday
Next system come in two phases with first sfc low tracking out
of the great lakes and into SRN quebec Wed into Wed night, as a
weakening 500 mb follows it. This will set off some waa,
especially in the NRN zones on Wednesday. This will likely start
as snow, but will transition to fzra for a period Wed afternoon
into Wed evening as temps warm aloft. Fzra amts will be light
only a few hundredths of inch, but enough to make for slippery
travel, especially in NRN nh Wed afternoon and evening, and in
the me mtns and maybe foothills Wed night. Snowfall will be
limited to 1-2" in most spots, but may see some amounts closer
to 3" along the intl border.

In the southern areas, we are less likely to see much if any
precip during the day wed, as that best forcing from the initial
warm front shifts to the north, and if there is any showers in
the afternoon, it will likely be warm enough for it to start as
rain. The better chance for precip in the south will be wed
night as secondary low get going along cold front to our south
and west. Temps will rise thru the day Wed reaching their highs
late, and ranging from the upper 20s to lower 30s in the n, to
35-40 in the south.

Given the flood of warm air Wed night, although it will be
modified by the cold snow pack near the sfc, look for widespread
to develop Wed night. Lows Wed night will like be at the start
of the period and will be close to Wed highs, with temps slowly
rising through the night.

Long term Wednesday night through Tuesday
A progressive pattern will continue through the middle of the
week. A strong long wave trough will dig into the central part
of the conus. This will leave the east coast on the warm side
through the day on Thursday.

Surface low pressure will track west of the region up the st
lawrence valley. This will bring warm air aloft into the entire
region. Air temperatures will rise above freezing through most of the
area on Thursday, however have allowed the timing to lag a bit
behind the guidance as cold pools are a bit sluggish. Even so by
afternoon, this will allow for rain to fall for all but the
canadian border where snow may hold on. While the air will be warm,
some surfaces will remain cold from the extended cold spell and
expect patchy freezing rain to be an issue through the morning on
Thursday.

A cold front will push through the region Thursday night bringing
and end to the rain. Expect a brief period of freezing rain and snow
as the cold air moves in but generally the cold air and the end of
the precipitation will be neck and neck.

After we return to a colder air mass a weak upper level disturbance
dropping through quebec may touch off some mountain showers on
Friday night into Saturday with high pressure then holding through
the start of next week.

Aviation 02z Wednesday through Sunday
Short term...VFR and diminish winds expected through the night.

May see some MVFR CIGS vis at khie kleb late Wed morning or
early afternoon, as well as some potential -sn or -fzra. All
terminals should go down to ifr or lower late Wed thru wed
night, in both precip and fog.

Long term... Widespread ifr in rain and fog on Thursday as
warmer air flows into the region over the existing snowpack. A
cold front will cross the region Thursday night returning
precip over to snow as it comes to an end. A few snow showers
along the international border may continue through Friday
night and into Saturday.

Marine
Short term... Winds diminish this evening, and then switch SW and
pick up Wed morning, and may need SCA by Wed afternoon.

Long term... Increasing south flow ahead of the system on
Thursday will bring the outer waters to near gale force. After
the cold front moves through on Thursday night expect SCA to
continue through the start of the weekend.

Gyx watches warnings advisories
Me... Winter weather advisory from 10 am Wednesday to 5 am est
Thursday for mez007>009-012>014.

Nh... Winter weather advisory from 10 am Wednesday to 5 am est
Thursday for nhz001>007-011.

Marine... Small craft advisory from 7 am to 11 pm est Wednesday for
anz150>154.

Near term update... Ekster


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CASM1 - 8418150 - Portland, ME 12 mi58 min 19°F 33°F
44007 - PORTLAND 12 NM Southeast of Portland,ME 18 mi68 min SW 12 G 14 26°F 39°F1 ft1031.1 hPa (-2.2)10°F
44032 - Buoy E0104 - Central Maine Shelf 39 mi114 min WSW 7.8 G 9.7 27°F 41°F1 ft1030.7 hPa
WEXM1 - Wells Reserve, ME 39 mi58 min NW 1 14°F -5°F
WELM1 - 8419317 - Wells, ME 41 mi58 min NW 1.9 G 2.9 18°F 36°F1031.4 hPa (-2.3)
44030 - Buoy B0102 - Western Maine Shelf 45 mi114 min WSW 12 G 14 24°F 41°F1 ft

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Portland, Portland International Jetport, ME15 mi67 minSW 310.00 miMostly Cloudy14°F0°F51%1031.5 hPa
Auburn-Lewiston, ME22 mi62 minS 310.00 miFair10°F-5°F50%1032.3 hPa
Wiscasset Airport, ME23 mi65 minN 010.00 miA Few Clouds7°F0°F70%1031.6 hPa

Wind History from PWM (wind in knots)
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Tide / Current Tables for Chebeague Point, Great Chebeague Island, Maine
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Chebeague Point
Click for Map
Wed -- 12:08 AM EST     10.15 feet High Tide
Wed -- 06:00 AM EST     -0.98 feet Low Tide
Wed -- 07:06 AM EST     Sunrise
Wed -- 08:55 AM EST     Moonset
Wed -- 12:21 PM EST     11.42 feet High Tide
Wed -- 04:38 PM EST     Sunset
Wed -- 06:39 PM EST     -1.91 feet Low Tide
Wed -- 07:54 PM EST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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10.19.67.852-0.2-1-0.31.74.67.710.111.311.19.56.63.20.2-1.6-1.8-0.61.84.87.7

Tide / Current Tables for Upper Hell Gate (Sasanoa River, Maine) Current
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Upper Hell Gate (Sasanoa River
Click for Map
Wed -- 12:56 AM EST     1.23 knots Max Flood
Wed -- 04:47 AM EST     -0.00 knots Slack
Wed -- 06:58 AM EST     -1.10 knots Max Ebb
Wed -- 07:05 AM EST     Sunrise
Wed -- 08:54 AM EST     Moonset
Wed -- 10:17 AM EST     0.00 knots Slack
Wed -- 01:11 PM EST     1.30 knots Max Flood
Wed -- 04:37 PM EST     Sunset
Wed -- 05:01 PM EST     -0.00 knots Slack
Wed -- 07:25 PM EST     -1.32 knots Max Ebb
Wed -- 07:53 PM EST     Moonrise
Wed -- 11:02 PM EST     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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1.11.21.10.90.5-0.2-0.8-1.1-0.9-0.6-0.10.411.31.210.60-0.8-1.3-1.2-0.9-0.5-0

Weather Map and Satellite Images
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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 (3,6,7,8)
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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.