Saturday, May27, 2017 L-36.com


Marine Weather and Tides
Littlejohn Island, ME

Version 3.4
What's New / NOTES
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 5:00AMSunset 8:13PM Saturday May 27, 2017 5:51 AM EDT (09:51 UTC) Moonrise 7:01AMMoonset 10:14PM Illumination 4% Phase: Waxing Crescent; Moon at 2 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- 327 Am Edt Sat May 27 2017
Today..N winds 5 to 10 kt...becoming E this afternoon. Seas 1 to 2 ft.
Tonight..W winds around 5 kt. Seas 1 to 2 ft.
Sun..SW winds around 5 kt...becoming S in the afternoon. Seas 1 to 2 ft.
Sun night..S winds 5 to 10 kt. Seas 1 to 2 ft.
Mon..SE winds 5 to 10 kt. Seas 2 to 3 ft. Showers likely...mainly in the afternoon.
Mon night..E winds 5 to 10 kt. Seas 2 to 3 ft. Showers likely. Patchy fog. Vsby 1 to 3 nm.
Tue..SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers.
Tue night..S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Patchy fog. Vsby 1 to 3 nm.
Wed..SW winds 5 to 10 kt. Seas 1 to 2 ft. A chance of showers.
Wed night..W winds 5 to 10 kt. Seas 2 to 3 ft.
ANZ100 327 Am Edt Sat May 27 2017
Synopsis for stonington me to merrimack river ma out to 25 nm.. Saturday will be quiet across the waters...with mainly leftover swell from the departing low pressure. A weak ridge of high pressure will build in Sunday. A warm front will push through the waters late in the day...followed by a cold front Monday.

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 270746
afdgyx
area forecast discussion
national weather service gray me
346 am edt Sat may 27 2017

Synopsis
Weak high pressure will build over the area today and will
shift offshore on Sunday... Allowing us a window of dry weather.

The next system over the eastern great lakes will lift north
into quebec Sunday night and will drag a front toward the region
on Monday with rain showers. That front will slowly cross the
area late Monday night and Tuesday with unsettled weather.

Near term until 6 pm this evening
Trapped low level moisture and weak flow will lead to very slow
clearing today. In reality it will be more like gradual lifting
of the clouds with some breaks of sun. Mid level temps are still
forecast to be on the chilly side... Especially across the ern
half of the forecast area... So readings in the low 60s are most
likely there. Warming temps in the W at least give us an outside
shot as a 70 degree reading in the ct valley.

Short term tonight through 6 pm Sunday
The stale air mass lingers over the area tonight into sun... With
little change expected. High pressure will try and nose into the
forecast area from the n... But never really quite makes it to
clear things out. What it will do as we head into early Sun is
make an e-w pressure gradient and develop some onshore flow.

Lingering low level moisture plus that light upslope
flow... Possibly aided by a passing S WV trof... Could lead to
some patchy drizzle across SRN nh. This should dry up and lift
as daytime heating commences sun. The exception would be the ne
forecast area... Where stalled boundary and passing S WV may
spark some showers. More well defined S WV ridging moving in
from the W and subsidence Sun will allow for less cloud cover
and warmer temps... With a good chance at some 70s inland.

Long term Sunday night through Friday
The deterministic models remain in decent agreement on the longwave
pattern through late next week. We begin the period with a weak
shortwave ridge cresting over the forecast area. This ridge is
quickly kicked offshore by Monday morning in response to a deepening
upper trough over the great lakes. The upper trough axis will
gradually shift eastward into the northeast conus... Where it will
remain for the balance of the new work week. Temperatures this
period should average below normal as troughing dominates across
new england. In the dailies... A weak ridge of high pressure will
retreat well offshore on Monday. Low pressure centered north of
the great lakes will push a slow-moving occluded front across the
region Monday and Tuesday with onshore flow and the advancing
baroclinic zone providing a damp start to the new work week.

Behind this frontal system... The unsettled weather will continue
as an upper trough remains across the northeast and a series of
weak cold fronts or surface troughs cross the area.

Aviation 08z Saturday through Wednesday
Short term... Areas of MVFR continue as low level moisture is
very slowly eroding in the wake of low pressure. There have been
some local ifr conditions at times... But I feel that today will
trend towards MVFR orVFR. Especially with some afternoon
heating... I thinkVFR CIGS will be most widespread. Tonight
across SRN nh we will have to watch for a period of ifr CIGS in
onshore flow and dz. Model forecast soundings suggest a 1 to 2
kft moist layer and weak S WV trof providing some lift.

Confidence is too low to include in the tafs for psm and mht at
this time. Conditions will improve toVFR at all terminals sun.

Long term...

mon - tue... MVFR in shra with LCL ifr in fog and drizzle.

Wed... Areas of MVFR in -shra.

Marine
Short term... Some leftover swell continues N of port clyde this
morning. SCA for hazardous seas will continue at least into the
morning before seas diminish. Otherwise weak high pressure will
be in control of the waters thru the weekend... And sca
conditions are not expected.

Long term...

mon - tue... Conditions could approach small craft outside the
bays.

Tides coastal flooding
The astronomical high tide in portland is 11.9 feet mllw at
119 am Sunday. Winds are expected to be light and seas low... But
high water conditions may require a coastal flood statement.

Gyx watches warnings advisories
Me... None.

Nh... None.

Marine... Small craft advisory for hazardous seas until 2 pm edt this
afternoon for anz150.

Near term... Legro
short term... Legro
long term... Schwibs
aviation... Legro schwibs
marine... Legro schwibs
tides coastal flooding... Legro


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CASM1 - 8418150 - Portland, ME 12 mi52 min 52°F 50°F1008.1 hPa (+0.4)
44007 - PORTLAND 12 NM Southeast of Portland,ME 18 mi62 min NW 5.8 G 5.8 50°F 47°F3 ft1007.8 hPa (+0.8)48°F
WEXM1 - Wells Reserve, ME 39 mi52 min W 1.9 49°F 49°F
44032 - Buoy E0104 - Central Maine Shelf 39 mi108 min NW 3.9 G 5.8 46°F 45°F4 ft1007 hPa
WELM1 - 8419317 - Wells, ME 41 mi52 min WNW 1.9 G 4.1 50°F 1008.5 hPa (+1.1)
44030 - Buoy B0102 - Western Maine Shelf 45 mi108 min N 5.8 G 7.8 49°F 48°F4 ft1007.8 hPa

Wind History for Wells, ME
(wind in knots)    EDIT      (on/off)   Help
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NE13
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N5
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NE12
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G25
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G26
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NE13
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NE2
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G8
S4
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G7
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G5
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N1
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NW1

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Portland, Portland International Jetport, ME15 mi61 minW 310.00 miMostly Cloudy49°F48°F97%1008.2 hPa
Auburn-Lewiston, ME22 mi56 minN 010.00 miOvercast49°F48°F97%1009.9 hPa
Wiscasset Airport, ME23 mi59 minNW 36.00 miFog/Mist51°F48°F92%1008.3 hPa

Wind History from PWM (wind in knots)
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Last 24hrNE13NE13
G22
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NE12NE13NE11N7N7N11N7N8N8N9
G16
6N7NW4N5N45NE8N5W3W3
1 day agoCalm4E5E6E6E10E11E17
G25
E12E14
G20
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G29
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CalmNE9
2 days agoCalmN3N33E4E5E5E5E6SE6SE6S5S6SE5S3S3S4S3CalmCalmCalmCalmCalmE3

Tide / Current Tables for Chebeague Point, Great Chebeague Island, Maine
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Chebeague Point
Click for Map
Sat -- 12:18 AM EDT     11.86 feet High Tide
Sat -- 05:04 AM EDT     Sunrise
Sat -- 06:38 AM EDT     -1.96 feet Low Tide
Sat -- 07:01 AM EDT     Moonrise
Sat -- 12:59 PM EDT     10.50 feet High Tide
Sat -- 06:51 PM EDT     -0.69 feet Low Tide
Sat -- 08:11 PM EDT     Sunset
Sat -- 10:13 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
11.811.59.76.83.30.2-1.6-1.9-0.61.957.99.810.59.87.84.91.9-0.1-0.70.32.45.58.5

Tide / Current Tables for Upper Hell Gate (Sasanoa River, Maine) Current
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Upper Hell Gate (Sasanoa River
Click for Map
Sat -- 01:10 AM EDT     1.35 knots Max Flood
Sat -- 05:02 AM EDT     Sunrise
Sat -- 05:04 AM EDT     -0.00 knots Slack
Sat -- 07:00 AM EDT     Moonrise
Sat -- 07:25 AM EDT     -1.33 knots Max Ebb
Sat -- 11:03 AM EDT     0.00 knots Slack
Sat -- 01:45 PM EDT     1.23 knots Max Flood
Sat -- 05:37 PM EDT     -0.00 knots Slack
Sat -- 07:47 PM EDT     -1.13 knots Max Ebb
Sat -- 08:10 PM EDT     Sunset
Sat -- 10:12 PM EDT     Moonset
Sat -- 11:07 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.11.31.310.70.1-0.8-1.3-1.3-0.9-0.6-00.61.11.21.10.90.4-0.3-1-1.1-0.9-0.5-0.1

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 (5,6,7,8)
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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.