Thursday, May25, 2017 L-36.com


Marine Weather and Tides
Cape Neddick, 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 5:08AMSunset 8:12PM Thursday May 25, 2017 12:10 PM EDT (16:10 UTC) Moonrise 5:21AMMoonset 7:58PM Illumination 0% Phase: New Moon; Moon at 0 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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ANZ154 Coastal Waters From Cape Elizabeth, Me To Merrimack River, Ma Out 25 Nm- 1117 Am Edt Thu May 25 2017
.small craft advisory in effect through Friday afternoon...
Rest of today..E winds 15 to 20 kt with gusts up to 25 kt... Increasing to 20 to 25 kt with gusts up to 30 kt this afternoon. Seas around 4 ft...building to 5 to 8 ft this afternoon. A chance of rain late this morning...then rain likely this afternoon.
Tonight..E winds 15 to 25 kt...diminishing to 10 to 20 kt after midnight. Seas 6 to 9 ft. Patchy drizzle. Rain...mainly after midnight. Patchy fog. Vsby 1 to 3 nm.
Fri..NE winds 10 to 20 kt...becoming N 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 5 to 8 ft. Patchy fog in the morning. Rain. Vsby 1 to 3 nm in the morning.
Fri night..N winds 10 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. A chance of showers in the evening.
Sat..N winds 5 to 10 kt with gusts up to 20 kt... Becoming E in the afternoon. Seas 3 to 5 ft.
Sat night..S winds 5 to 10 kt. Seas 2 to 3 ft.
Sun..SE winds 5 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Sun night..SE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. A chance of showers.
Mon..E winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. Showers likely. Vsby 1 to 3 nm.
Mon night..NE winds 5 to 10 kt. Seas around 3 ft. A chance of showers.
ANZ100 1117 Am Edt Thu May 25 2017
Synopsis for stonington me to merrimack river ma out to 25 nm.. High pressure departs today...as low pressure moves through the mid atlantic. The storm will move through the gulf of maine Friday...before exiting to the northeast Saturday. A narrow ridge of high pressure builds in for Sunday morning ahead of a northward moving warm front. Low pressure to the west lifts north through Monday.

7 Day Forecast for Marine Location Near Cape Neddick, ME
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location: 43.16, -70.59     debug


Area Discussion for - Gray/Portland, ME
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Fxus61 kgyx 251536 aac
afdgyx
area forecast discussion... Updated
national weather service gray me
1136 am edt Thu may 25 2017

Synopsis
A broad area of low pressure from the ohio valley through the
mid atlantic coast will slowly lift northeast today through
tonight... Reaching CAPE cod by Friday morning. Low pressure will
continue northeast into the maritimes Friday through Friday
night. Weak high pressure will build over the area on Saturday
and will shift offshore on Sunday. Weak low pressure over the
eastern great lakes will lift north into western quebec Sunday
night and will drive a cold front toward the region on Monday.

The front will slowly cross the area late Monday night and
Tuesday.

Near term until 6 pm this evening
11:35 am update...

drier air nose of high pressure continues to intrude over much
of the terrain of northern new england and retard the
advancement of precipitation into maine and northern and central
nh. Easterly flow has intensified keeping temperatures down in
the lower to mid 50s along the coast while northern sections are
in the upper 50s to lower 60s. Have increased temperatures over
the north just slightly as a result. Pops were adjusted for
later timing in line with latest runs of cam models and with
thinking from previous update (see discussion at 9:07 am).

9:07 am update...

raining now in keene and nashua this morning as the first batch
of precipitation with this system arrives. Shower activity will
still take some time to bring the precip north and east...

probably not reaching as far north as the notches of nh or as
far east as portland until at least noon. After this first batch
we'll see a break in the activity more or less... However there
will be widely scattered showers still around for the late
afternoon and evening hours... Mainly over the mountains. Around
midnight the stronger short wave associated with this rain event
will near and increase precipitation both in intensity and
areal coverage. We'll see some heavy downpours through Friday
morning.

Have adjusted grids based on these ideas... And followed the
hrrr closest of the cam models for this update. Blended nerfc
qpf with orographic adjustments for precip amounts. Also added
drizzle tonight mainly in between the two systems as the onshore
flow intensifies.

7 am update... Rain continues to push north through southern
new england early this morning and is generally on track with
current forecasts. Expect rain to shift into southern new
hampshire over the next couples of hours and into central new
hampshire and southwest maine by late morning. Have adjusted
temps tds rh grids based on latest obs. No other changes planned
attm.

Previous discussion... .

Broad area of low pressure from the ohio valley through the mid
atlantic states will lift a warm front northward today. Hrrr
generally in line with latest radar composite and brings precip
into southern new hampshire and southwest maine by late morning
to early afternoon. This preliminary batch of precip will
continue north through the afternoon hours. Only looking for
light QPF through this evening with amounts of a quarter inch or
less. Onshore flow will quickly pick up this morning with
easterly winds becoming gusty by afternoon. High temperatures
will only make the mid to upper 50s in coastal and southern
interior sections. Farther north... Highs will edge into the
lower 60s.

Short term 6 pm this evening through 6 pm Friday
Just looking for showery precip this evening with some
additional light accumulations. Strong vort lobe rotating
around upper trough back over the ohio valley will swing north
toward the region after midnight and will bring a shot of
moderate to occasionally heavy rain back into the region during
the early morning hours and through the day on Friday. Expect
rain to taper to showers by Friday evening. Most of the forecast
area will see an inch to an inch and a half with locally 2
inches in coastal areas. Long duration of this event should
preclude any flooding issues but poor drainage areas may see
some brief issues in heavier rainfall Friday. Expect
temperatures to show little change Thursday night and Friday
with lows Thursday night in the near 50 and highs on Friday in
the 50s to near 60.

Long term Friday night through Wednesday
Trof will be lifting out Fri night into sat. Lingering low level
moisture should keep clouds and possibly fog around overnight.

Clouds will gradually clear out later Sat though as weak S wv
ridging moves across the region. That brief ridge will depart
sun... Allowing the next S WV trof to drive a warm front nwd thru
the northeast. Models remain consistent with low pressure
forming well out to sea along the triple point... Which may spare
the region another widespread moderate rainfall event. However
upper trofing is forecast to remain persistent for the remainder
of the work week. Lower heights and cyclonic flow will favor
afternoon increases in clouds and chances for showers. Temps
will more or less be near normals.

Aviation 15z Thursday through Monday
Short term... Ifr lifr ceilings developing today and persisting
through Friday.

Long term... Lingering low level moisture may keep some MVFR cigs
around Fri night. Daytime heating into Sat should allow any
remaining MVFR conditions to lift. Weak ridging should hold thru
sun... Allowing forVFR conditions. The next S WV trof arrives
mon... And scattered MVFR conditions in shra or maybe even a
tsra return.

Marine
Short term... Continuing sca's through Friday morning.

Long term... Winds and seas gradually diminish as weak high
pressure moves over the waters. Developing sly flow over the
waters by Mon may bring some 5 ft seas outside of the bays.

Tides coastal flooding
Highest astronomical tides of the year on tap for tonight and
Friday night. Have issued a coastal flood advisory for all
coastal zones for around the time of high tide tonight.

Forecast tide will reach 12 feet in portland and with a storm
surge of .3 to .5 feet will likely see splash-over and flooding
of the usual spots around the time of high tide around 1230 am
tonight.

Gyx watches warnings advisories
Me... Coastal flood advisory from 10 pm this evening to 1 am edt
Friday for mez023>028.

Nh... Coastal flood advisory from 10 pm this evening to 1 am edt
Friday for nhz014.

Marine... Small craft advisory until 2 pm edt Friday for anz151-153.

Small craft advisory until 2 pm edt Friday for anz150-152-154.

Near term... Hanes
short term... Sinsabaugh
long term... Legro
aviation...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44030 - Buoy B0102 - Western Maine Shelf 9 mi67 min ENE 14 G 16 53°F 53°F4 ft1012 hPa
WELM1 - 8419317 - Wells, ME 11 mi41 min E 14 G 17 55°F 1012.6 hPa
WEXM1 - Wells Reserve, ME 12 mi71 min NE 8 56°F 50°F
IOSN3 - Isle of Shoals, NH 13 mi71 min ENE 20 G 21 53°F 1011.3 hPa (-1.1)49°F
BGXN3 - Great Bay Reserve, NH 15 mi86 min E 7 57°F 1013 hPa51°F
44098 - Jeffrey's Ledge, NH (160) 34 mi35 min 50°F4 ft
44007 - PORTLAND 12 NM Southeast of Portland,ME 35 mi81 min ENE 14 G 18 51°F 53°F4 ft1012.8 hPa (-0.7)49°F
CASM1 - 8418150 - Portland, ME 39 mi41 min 54°F 48°F1013.3 hPa
44029 - Buoy A0102 - Mass. Bay/Stellwagen 44 mi67 min ENE 18 G 21 53°F 52°F3 ft1009.6 hPa

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Pease Air Force Base / Portsmouth, NH13 mi73 minENE 1110.00 miLight Rain56°F49°F79%1012.1 hPa
Sanford, Sanford Regional Airport, ME18 mi15 minE 9 G 1610.00 miFair58°F48°F72%1013.6 hPa
Rochester - Skyhaven Airport, NH19 mi20 minE 10 G 1910.00 miOvercast58°F46°F67%1011.4 hPa

Wind History from PSM (wind in knots)
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Last 24hrSE4E7SE6E7SE7SE8SE10SE6SE5S4CalmCalmCalmCalmCalmCalmE3NE5NE3NE6NE8NE8E11E16
G25
1 day agoCalmSW4W4SE8SE4S3SE6CalmSE4CalmCalmCalmCalmCalmCalmCalmCalmCalmNW4CalmE3NE3E3SE4
2 days agoS15S11S8SE8SE9SE8E6E5SE5CalmE5E4E3CalmCalmNW5W3CalmNW4NW5N7N4CalmW5

Tide / Current Tables for Cape Neddick, Maine
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Cape Neddick
Click for Map
Thu -- 05:09 AM EDT     Sunrise
Thu -- 05:09 AM EDT     -1.40 feet Low Tide
Thu -- 05:21 AM EDT     Moonrise
Thu -- 11:17 AM EDT     9.90 feet High Tide
Thu -- 03:46 PM EDT     New Moon
Thu -- 05:23 PM EDT     -0.71 feet Low Tide
Thu -- 07:57 PM EDT     Moonset
Thu -- 08:09 PM EDT     Sunset
Thu -- 11:31 PM EDT     11.23 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
9.87.64.71.7-0.5-1.4-0.90.93.76.68.89.99.68.15.730.6-0.6-0.41.23.86.99.611

Tide / Current Tables for Portsmouth Harbor Entrance, New Hampshire Current
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Portsmouth Harbor Entrance
Click for Map
Thu -- 12:34 AM EDT     -0.00 knots Slack
Thu -- 03:28 AM EDT     -2.46 knots Max Ebb
Thu -- 05:10 AM EDT     Sunrise
Thu -- 05:22 AM EDT     Moonrise
Thu -- 07:19 AM EDT     0.00 knots Slack
Thu -- 09:23 AM EDT     1.59 knots Max Flood
Thu -- 12:59 PM EDT     -0.00 knots Slack
Thu -- 03:46 PM EDT     New Moon
Thu -- 03:48 PM EDT     -2.29 knots Max Ebb
Thu -- 07:27 PM EDT     0.00 knots Slack
Thu -- 07:57 PM EDT     Moonset
Thu -- 08:09 PM EDT     Sunset
Thu -- 09:45 PM EDT     1.90 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.5-0.4-1.6-2.4-2.4-2-1.4-0.40.81.51.51.10.7-0-1.1-2-2.3-1.9-1.3-0.50.71.71.91.5

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 (12,3,4,5)
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Ground Weather Radar Station Portland, ME
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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.