Thursday, September21, 2017 L-36.com


Marine Weather and Tides
Topsham, 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 6:39PM Thursday September 21, 2017 3:37 PM EDT (19:37 UTC) Moonrise 7:44AMMoonset 7:42PM Illumination 1% Phase: Waxing Crescent; Moon at 1 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- 218 Pm Edt Thu Sep 21 2017
.small craft advisory for hazardous seas in effect through Friday evening...
Tonight..NE winds around 15 kt with gusts up to 25 kt. Seas 3 to 5 ft.
Fri..NE winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft.
Fri night..NE winds 5 to 10 kt. Seas 2 to 4 ft.
Sat..NE winds 5 to 10 kt. Seas 2 to 4 ft.
Sat night..SE winds around 5 kt, becoming nw around 5 kt after midnight. Seas 2 to 3 ft.
Sun..N winds around 5 kt, becoming S in the afternoon. Seas 2 to 3 ft.
Sun night..S winds around 5 kt, becoming W around 5 kt after midnight. Seas 2 to 3 ft.
Mon..SW winds around 5 kt. Seas 2 to 3 ft.
Mon night..E winds around 5 kt. Seas 2 to 3 ft.
Tue..E winds 5 to 10 kt. Seas 2 to 3 ft.
Tue night..E winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers.
ANZ100 218 Pm Edt Thu Sep 21 2017
Synopsis for stonington me to merrimack river ma out to 25 nm.. Jose will remain nearly stationary south of cape cod through Friday and into the weekend producing some gusty winds at times. Otherwise high pressure will be the main feature and build south across the waters into early next week. Winds and seas will gradually diminish through the weekend.

7 Day Forecast for Marine Location Near Topsham, ME
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location: 43.92, -69.96     debug


Area Discussion for - Gray/Portland, ME
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Fxus61 kgyx 211820
afdgyx
area forecast discussion
national weather service gray me
220 pm edt Thu sep 21 2017

Synopsis
Jose will wobble around well south of CAPE cod into the
weekend, gradually weakening with time. It will produce some
gusty winds at times along the coast into Friday. Meanwhile, a
large building ridge of high pressure over the region will be
the main feature through the weekend into early next week as
jose weakens, making for a very nice stretch of dry and very warm
weather with temperatures running well above normal Saturday
through at least Tuesday.

Near term through tonight
As jose remains stationary well south of CAPE cod, it allows a
large blocking ridge of high pressure to build across the region
tonight allowing for mostly clear skies. After sunset mixing
will cease and most of the gusty winds will become light. This
will allow radiational cooling and the normal early fall
nocturnal valley fog to develop aft 06z. Temps will be near
normal with lows ranging from the mid 40s in the mountains to
mid 50s elsewhere.

Short term Friday through Friday night
Jose will remain quasi-stationary well south of CAPE cod Friday
and Friday night while the blocking ridge of high pressure
builds from the northwest. This ridge of high pressure will
bring plenty of subsidence and mostly sunny skies and mild temps
reaching into the lower to mid 70s, except slightly cooler
along the immediate coast. Winds along the coast may be breezy
at times Friday. Friday night skies will once again be mostly
clear thus some radiational cooling and the normal fall
nocturnal valley fog develops in the mountains after 06z.

Long term Saturday through Thursday
Jose meanders well south of CAPE cod through the weekend.

Meanwhile, the very large ridge of high pressure continues to
build over the region producing a long stretch of very nice,
dry, and very warm conditions that will last through Tuesday.

By Wednesday, a frontal system passing northeast across southern
canada along the northern periphery of the ridge, may produce a
few showers in the mountains while continued mild weather
continues over southern and central areas of maine and new
hampshire. Used superblend model for temps but realize they may
be weighted down some due to climo keeping forecast MAX temps a
little low.

Aviation 16z Thursday through Monday
Short term...VFR conditions except lifr at kleb khie in valley
fog 06z-13z tonight and again Fri night.

Long term...

sat - tue...VFR except lifr conditions possible in valley fog
at kleb khie between 08-13z each night.

Marine
Short term... Jose will remain nearly stationary well south of
cape cod through Friday night. This will mean SCA conditions
are expected tonight through Friday over the outer waters. In
penobscot bay,the SCA has been discontinued as swells were
remaining outside the bay area. In casco bay swells of 3-6 ft
continue along the outer harbor areas so a SCA due to hazardous
seas is in effect and will be needed through Friday.

Long term... SCA conditions are likely through the weekend over
the outer waters, mainly for seas, as jose continues to meander
south of nantucket.

Tides coastal flooding
Long period swells from jose will continue through Friday and
into the weekend. Some minor beach erosion remains possible.

Gyx watches warnings advisories
Me... High surf advisory until 8 pm edt Friday for mez023>027.

Nh... High surf advisory until 8 pm edt Friday for nhz014.

Marine... Small craft advisory for hazardous seas until 8 pm edt Friday
for anz153.

Small craft advisory until 8 pm edt Friday for anz150-152-154.

Near term... Marine
short term... Marine
long term... Marine


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CASM1 - 8418150 - Portland, ME 24 mi50 min 71°F 60°F1017.9 hPa
44007 - PORTLAND 12 NM Southeast of Portland,ME 29 mi48 min NE 7.8 G 9.7 64°F 59°F6 ft1017.2 hPa (-0.4)55°F
44032 - Buoy E0104 - Central Maine Shelf 35 mi94 min NNE 16 G 19 63°F 56°F6 ft1016.6 hPa

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, ME14 mi45 minVar 5 G 1510.00 miFair76°F51°F42%1018.2 hPa
Auburn-Lewiston, ME20 mi42 minNE 13 G 2110.00 mi72°F48°F44%1020 hPa

Wind History from IWI (wind in knots)
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Last 24hr443Calm433444433555N7NE85NE8NE8
G16
NE8
G16
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G15
1 day ago35NE4E53Calm3NE4444443345444E6N8NE66
2 days agoSE55E5E44E3CalmCalmCalmNE3CalmCalmCalmCalm3CalmNE4Calm5NE4E5E6NE4E4

Tide / Current Tables for Brunswick, Androscoggin River, Kennebec River, Maine
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Brunswick
Click for Map
Thu -- 02:49 AM EDT     4.44 feet High Tide
Thu -- 06:26 AM EDT     Sunrise
Thu -- 07:43 AM EDT     Moonrise
Thu -- 11:00 AM EDT     -0.23 feet Low Tide
Thu -- 03:12 PM EDT     4.33 feet High Tide
Thu -- 06:38 PM EDT     Sunset
Thu -- 07:41 PM EDT     Moonset
Thu -- 11:21 PM EDT     -0.20 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
12.74.14.44.23.72.921.10.4-0.1-0.20.423.54.34.23.83.22.31.40.60.1-0.2

Tide / Current Tables for Upper Hell Gate (Sasanoa River, Maine) Current
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Upper Hell Gate (Sasanoa River
Click for Map
Thu -- 01:24 AM EDT     1.07 knots Max Flood
Thu -- 04:39 AM EDT     -0.00 knots Slack
Thu -- 06:25 AM EDT     Sunrise
Thu -- 06:49 AM EDT     -1.01 knots Max Ebb
Thu -- 07:42 AM EDT     Moonrise
Thu -- 10:33 AM EDT     0.00 knots Slack
Thu -- 01:43 PM EDT     1.09 knots Max Flood
Thu -- 05:06 PM EDT     -0.00 knots Slack
Thu -- 06:38 PM EDT     Sunset
Thu -- 07:13 PM EDT     -0.96 knots Max Ebb
Thu -- 07:41 PM EDT     Moonset
Thu -- 10:55 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.91.11.10.90.5-0.3-0.9-1-0.9-0.7-0.30.30.81.11.110.80.1-0.6-1-0.9-0.7-0.40

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.