Wednesday, April26, 2017 L-36.com


Marine Weather and Tides
Cape Neddick, ME

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 5:40AMSunset 7:40PM Wednesday April 26, 2017 2:01 AM EDT (06:01 UTC) Moonrise 6:08AMMoonset 7:56PM 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- 957 Pm Edt Tue Apr 25 2017
.small craft advisory in effect through Wednesday afternoon...
Overnight..E winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 8 ft. Rain with areas of drizzle. Areas of fog.
Wed..E winds 10 to 20 kt...becoming se 5 to 15 kt in the afternoon. Seas 5 to 7 ft. Rain with areas of drizzle. Areas of fog in the morning. Patchy fog in the afternoon.
Wed night..E winds 5 to 10 kt. Seas 5 to 7 ft. A chance of rain with patchy drizzle. Patchy fog after midnight.
Thu..NE winds around 5 kt. Seas 5 to 7 ft. Patchy fog. Vsby 1 to 3 nm.
Thu night..E winds around 5 kt...becoming se after midnight. Seas 4 to 6 ft. Patchy fog. Vsby 1 to 3 nm.
Fri..S winds 5 to 10 kt. Seas 4 to 6 ft. Patchy fog in the morning. A chance of showers. Vsby 1 to 3 nm in the morning.
Fri night..SW winds 5 to 10 kt. Seas 4 to 6 ft. A chance of showers in the evening.
Sat..SW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers.
Sat night..W winds around 10 kt. Seas 2 to 4 ft.
Sun..E winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft.
Sun night..SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers.
ANZ100 957 Pm Edt Tue Apr 25 2017
Synopsis for stonington me to merrimack river ma out to 25 nm.. Moderate easterly flow shifts to southeast on Wednesday as low pressure moves north toward the gulf of maine. Although winds will decrease as the low arrives... Wave heights will remain elevated through the end of the week. A cold front will move in from the west on Friday and cross the waters on Saturday.

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 260451
afdgyx
area forecast discussion
national weather service gray me
1251 am edt Wed apr 26 2017

Synopsis
Cloudy, cool, and wet conditions are expected through Wednesday
as low pressure slowly moves north along the coast. Expect an
inch or two of rain east of the mountains through Wednesday. By
Thursday there will be some improvement west of the mountains
with warmer temperatures arriving, while east of the mountains
it will stay cloudy and cool.

Near term /until 6 am this morning/
1250 am update: quick update to input latest temps/dewpoints
and to drop the coastal flood advisory along the southwest coast
of maine and seacoast of new hampshire.

10 pm... Made a few tweaks to temps and winds overnight, but
nothing that would cause significant changes in the overall
forecast. Rain and drizzle continues into Wed morning.

655 pm... Updated forecast to adjust pops bit early this evening
/not raining yet in ERN zones/, and to adjust temps somewhat
based on current obs, and tweak mins a bit, as it looks like
most places will bottom out in the 40-45 range, which mean in
places its already raining temps won't change by more than a
couple degrees tonight. Otherwise rain and drizzle expected
through the night.

Previously... The next area of rain is on its way north into
southern new hampshire and southern maine this afternoon. This
round will be a bit heavier than the last. Expect more rain
arriving through the night as a slow moving cut off low tracks
north along the east coast. Easterly flow to the north of the
low will transport cool, moist air in off the gulf of maine
while also promoting cold air damming. At the interface between
the damming and the onshore easterly flow a coastal front will
form and could enhance rainfall rates along the immediate
coastline.

Short term /6 am this morning through 6 pm Thursday/
Axis of heaviest rain shifts east along the coast during the
day on Wednesday. Continued damming will keep temperatures cool,
but increasing moisture from rain and moist advection off the
atlantic will allow temperatures to warm into the low to mid
50s. Meanwhile to the west of the mountains downsloping
conditions will promote some clearing and warming during the
afternoon, with northern new hampshire warming into the mid 60s.

While the synoptic scale forcing for rain moves east Wednesday
night, a lingering low level onshore flow will promote clouds,
fog, and drizzle through the night. With all the excess moisture
near ground level and at least some nocturnal cooling, there is
the possibility for dense fog to form.

Long term /Thursday night through Wednesday/
The models are in decent agreement on the longwave pattern
through early next week. We begin the period with a shortwave
impulse exiting into the maritimes. It'll be followed by brief
ridging ahead of a broad deep upper trough over the western two-
thirds of the conus. A northern stream impulse crosses eastern
canada and new england on Saturday with ridging to briefly follow
for Sunday. By Monday... A strong shortwave is lifting north into
the great lakes with associated surface system moving into the
northeast CONUS for the start of the new work week. While the mean
jet position will limit cold air intrusion into the region...

we'll still average near or only slightly above normal for the
period given the abundance of clouds and unsettled conditions.

Aviation /06z Wednesday through Sunday/
Short term... Conditions will gradually become more permanently
ifr or worse this evening as steady rain moves in from south to
north. Conditions northwest of the white mountains may remain
MVFR or evenVFR depending on the intensity of the rain. Steady
rain moves east on Wednesday while low clouds and possible fog
and drizzle continue through Wednesday night.

Long term...

thu... Areas of MVFR with LCL ifr in -shra and fog.

Fri - sat... Areas of MVFR in -shra.

Marine
Short term... Easterly flow tonight shifts to southeast tomorrow
as low pressure approaches. Winds diminish below advisory levels
but wave heights will likely stay above 5 ft for several days.

Long term...

fri... Small craft conditions are possible outside the bays.

Sat... Small craft conditions are possible.

Fire weather
Expect wet conditions areawide through Wednesday. Could see some
warming and drying west of the mountains on Thursday while it
remains cloudy, cool, and damp east of the mountains.

Hydrology
With continued snow melt river levels remain high. Add another 1
to 2 inches of rain on top of that and at least a few rivers
could rise close to flood stage. At this time no river is
forecast to reach flood stage, but it would not be out of the
question for some minor flooding to occur depending on how much
rain falls in key areas.

Tides/coastal flooding
The coastal flood advisory until 1 am has been discontinued. A
very minor .3 foot surge was noted on the astronomical 11 foot
high tide shortly after 11 pm.

High tide Wednesday night is 11.5 ft. Although winds will become
more southeasterly at this point, there will likely be a
residual surge left in the gulf of maine which could cause
another 0.5 to 1 ft surge leading to the potential for minor
flooding and splash over again.

The next two nighttime tides are 11.7 ft but expect the surge to
be slowly draining by then and coastal flooding is not
anticipated.

Gyx watches/warnings/advisories
Me... None.

Nh... None.

Marine... Small craft advisory until 6 pm edt this evening for
anz150>154.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44030 - Buoy B0102 - Western Maine Shelf 9 mi117 min NE 18 G 21 44°F 44°F7 ft1019 hPa
WELM1 - 8419317 - Wells, ME 11 mi43 min N 8.9 G 11 44°F 47°F1019.4 hPa
WEXM1 - Wells Reserve, ME 12 mi61 min N 8 44°F 44°F
IOSN3 - Isle of Shoals, NH 13 mi61 min NNE 19 G 21 45°F 1018 hPa (-2.2)45°F
BGXN3 - Great Bay Reserve, NH 15 mi76 min NNE 2.9 45°F 1020 hPa45°F
44098 - Jeffrey's Ledge, NH (160) 34 mi25 min 44°F6 ft
44007 - PORTLAND 12 NM Southeast of Portland,ME 35 mi71 min NNE 14 G 18 44°F 44°F6 ft1019.6 hPa (-3.2)44°F
CASM1 - 8418150 - Portland, ME 39 mi49 min 45°F 44°F1020.4 hPa
44029 - Buoy A0102 - Mass. Bay/Stellwagen 44 mi117 min ESE 7.8 G 9.7 48°F 45°F1016.8 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 mi63 minNNE 82.50 miLight Rain Fog/Mist44°F43°F96%1018.9 hPa
Sanford, Sanford Regional Airport, ME18 mi65 minNNE 85.00 miLight Rain Fog/Mist43°F42°F97%1021.3 hPa
Rochester - Skyhaven Airport, NH19 mi70 minNNE 77.00 miLight Rain43°F41°F93%1019.1 hPa

Wind History from PSM (wind in knots)
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Last 24hrN3N5N6NE5N6NE8NE8NE9NE13NE8NE10
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1 day agoSW7SW10SW4W5W3SW3CalmCalmNE3SE5E8E10E11SE9--E10SE9E9E7NE7NE7NE6NE5N4
2 days agoCalmCalmCalmCalmCalmCalmNW5NW6N3SW4SW3SE9SE12SE16SE13SE15SE13SE11S10S4S4S7SW5SW7

Tide / Current Tables for Cape Neddick, Maine
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Cape Neddick
Click for Map
Wed -- 05:31 AM EDT     -1.24 feet Low Tide
Wed -- 05:42 AM EDT     Sunrise
Wed -- 06:08 AM EDT     Moonrise
Wed -- 08:18 AM EDT     New Moon
Wed -- 11:38 AM EDT     10.09 feet High Tide
Wed -- 05:48 PM EDT     -0.89 feet Low Tide
Wed -- 07:38 PM EDT     Sunset
Wed -- 07:55 PM EDT     Moonset
Wed -- 11:55 PM EDT     10.88 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
108.45.82.90.3-1.1-1.10.32.85.78.39.81096.841.3-0.4-0.90.22.45.48.310.3

Tide / Current Tables for Portsmouth Harbor Entrance, New Hampshire Current
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Portsmouth Harbor Entrance
Click for Map
Wed -- 12:59 AM EDT     -0.00 knots Slack
Wed -- 03:52 AM EDT     -2.38 knots Max Ebb
Wed -- 05:43 AM EDT     Sunrise
Wed -- 06:09 AM EDT     Moonrise
Wed -- 07:40 AM EDT     0.00 knots Slack
Wed -- 08:18 AM EDT     New Moon
Wed -- 09:47 AM EDT     1.63 knots Max Flood
Wed -- 01:20 PM EDT     -0.00 knots Slack
Wed -- 04:13 PM EDT     -2.33 knots Max Ebb
Wed -- 07:38 PM EDT     Sunset
Wed -- 07:53 PM EDT     0.00 knots Slack
Wed -- 07:55 PM EDT     Moonset
Wed -- 10:09 PM EDT     1.87 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.7-0-1.1-2.1-2.4-2.1-1.5-0.70.41.41.61.20.80.3-0.6-1.7-2.3-2.1-1.6-0.90.11.31.91.6

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 (2,6,7,8)
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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.