Friday, April20, 2018 L-36.com


Marine Weather and Tides
York Harbor, ME

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
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.

Sunrise 5:50AMSunset 7:33PM Friday April 20, 2018 4:27 PM EDT (20:27 UTC) Moonrise 9:27AMMoonset 12:00AM Illumination 29% Phase: Waxing Crescent; Moon at 5 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- 244 Pm Edt Fri Apr 20 2018
Tonight..NW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft.
Sat..NW winds 10 to 15 kt. Seas 2 to 3 ft.
Sat night..NW winds around 10 kt. Seas 1 to 2 ft, building to 2 to 3 ft after midnight.
Sun..NW winds 5 to 10 kt, becoming sw in the afternoon. Seas around 2 ft.
Sun night..W winds 5 to 10 kt, becoming nw after midnight. Seas 1 to 2 ft.
Mon..NW winds 5 to 10 kt, becoming S in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon.
Mon night..SW winds around 10 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Tue..SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft.
Tue night..S winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft.
Wed..SE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers.
Wed night..E winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 7 ft. Showers likely.
ANZ100 244 Pm Edt Fri Apr 20 2018
Synopsis for stonington me to merrimack river ma out to 25 nm.. Low pressure continues to move northeast through tomorrow. High pressure builds in by the end of the weekend with Sunny and warmer weather likely appearing early next week.

7 Day Forecast for Marine Location Near York Harbor, ME
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location: 43.13, -70.64     debug


Area Discussion for - Gray/Portland, ME
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Fxus61 kgyx 201845
afdgyx
area forecast discussion
national weather service gray me
245 pm edt Fri apr 20 2018

Synopsis
Low pressure centered southeast of nova scotia will drag several
weak troughs across the area through early Saturday. The
circulation around this system will produce cool weather through
Saturday with a few rain and snow showers, especially across
the higher terrain. By Sunday, high pressure and sunny weather
arrives along with the start of a gradual warming trend. By mid
week, unsettled weather returns with the approach of our next
storm system.

Near term through tonight
The northeast is currently dominated by a closed upper low
which is bringing weak successive waves of energy across the
forecast area. Cold air stratus as well as a few widely
scattered rain and snow showers are affecting the region today,
mainly over the higher terrain and towards the mid coast. Mixing
as well as a tighter surface pressure gradient has allowed
winds to pick up this afternoon. Expect speeds to begin to
diminish later tonight before increasing once again Saturday
morning.

Additional snow showers and clouds will plague the mountains and
foothills overnight and into Saturday morning as more short wave
energy moves across the northeast. However, looking at froude
numbers, accumulating snow is more likely for the overnight
period right along the canadian border to 40 miles south or so,
as well as the notches.

Short term Saturday through Saturday night
Cyclonic flow will continue to wrap up and shift slowly
northeast on Saturday, with flow becoming unblocked. This
indicates that widely scattered snow flurries over the mountains
are more likely during the day Saturday as opposed to
accumulating snow. Temperatures on Saturday will be similar to
today with perhaps a few warmer spots inland. We'll see another
day of gusty NW winds which will drop off after sunset.

Long term Sunday through Friday
A prolonged period of upper level ridging brings mostly sunny skies
and high pressure to the region right through the middle of next
week. At 500mb, a ridge moves over the eastern portion of north
america for the weekend. As we move into next week a cut off low
tries to develop through the southeast, however the ridging
continues over the northeast with little to no precipitation.

Temperatures will warm throughout the period with highs getting
into the 60s by Tuesday.

By Tuesday the cut off low over the southeast may begin to break
down, resulting in low pressure tracking up the eastern seaboard
with rain moving into northern new england mid week. Onshore flow
will drop temperatures along the coast. We're still talking about
day 6, so there is plenty of room for the timing to shift as it
often does with cut off patterns however there is enough of a
consensus to stick with likely pops for Wednesday into
Thursday.

Aviation 19z Friday through Wednesday
Short term through Saturday ...VFR with sct MVFR conditions in
mountain -shra shsn. Improving toVFR throughout after 12z
Saturday.

As far as llws, this shouldn't be an issue as winds aloft will
weaken overnight. Through this evening however, expect gusts
into the 20s.

Long term... SustainedVFR right through the middle of next week as
high pressure builds over the area.

Marine
Short term through Saturday ... Gusty westerly flow will persist
through the period but should remain just below SCA even outside
the bays.

Long term... Quiet on the waters through mid next week as high
pressure builds into the region. Low pressure moves up the coast
may bring small craft conditions mid next week.

Gyx watches warnings advisories
Me... None.

Nh... None.

Marine... None.

Near term... Hanes
short term... Hanes
long term... Curtis


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
IOSN3 - Isle of Shoals, NH 11 mi27 min NW 24 G 27 47°F 1016.5 hPa (+1.9)27°F
BGXN3 - Great Bay Reserve, NH 11 mi162 min W 8.9 51°F 1016 hPa34°F
44030 - Buoy B0102 - Western Maine Shelf 12 mi83 min WNW 19 G 21 45°F 42°F1014 hPa
WELM1 - 8419317 - Wells, ME 14 mi39 min N 17 G 24 49°F 41°F1016.5 hPa
WEXM1 - Wells Reserve, ME 15 mi147 min NW 7 50°F 27°F
44098 - Jeffrey's Ledge, NH (160) 34 mi51 min 41°F3 ft
44007 - PORTLAND 12 NM Southeast of Portland,ME 38 mi37 min NW 19 G 25 47°F 41°F2 ft1015 hPa (+1.5)29°F
CASM1 - 8418150 - Portland, ME 42 mi39 min 51°F 41°F1016 hPa
44029 - Buoy A0102 - Mass. Bay/Stellwagen 42 mi83 min 46°F 42°F2 ft1014.9 hPa

Wind History for Wells, ME
(wind in knots)    EDIT      (on/off)   Help
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S9
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G7
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NW12
G22
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G6
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G11
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G7
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G5
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NW8
G20
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G16
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G15
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G12
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G21
W9
G13
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G17

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Pease Air Force Base / Portsmouth, NH10 mi31 minNNW 20 G 2810.00 miPartly Cloudy and Breezy52°F26°F37%1017.2 hPa
Rochester - Skyhaven Airport, NH18 mi36 minWNW 17 G 2510.00 miA Few Clouds49°F28°F46%1017.3 hPa
Sanford, Sanford Regional Airport, ME19 mi31 minNW 10 G 2510.00 miOvercast49°F27°F43%1017.6 hPa

Wind History from PSM (wind in knots)
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Last 24hrSW4NW8NW8NW10N11NW4NW12NW8W7W12W10W12
G16
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G24
NW13NW16
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G28
1 day agoW13
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G17
W10W9W13W8SW4SW8W6W4SW4SW6W7SW4SW5W6SW5SW4W4NW4CalmS4S6
2 days agoW12
G17
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G17
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G16
W10W11W10W7W12W10W7W9SW7W9W12W11W12W10W13
G18
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W13W11W11
G19

Tide / Current Tables for Fort Point, York Harbor, Maine
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Fort Point
Click for Map
Fri -- 02:31 AM EDT     10.23 feet High Tide
Fri -- 05:52 AM EDT     Sunrise
Fri -- 09:10 AM EDT     -0.81 feet Low Tide
Fri -- 09:26 AM EDT     Moonrise
Fri -- 03:13 PM EDT     9.06 feet High Tide
Fri -- 07:31 PM EDT     Sunset
Fri -- 09:25 PM EDT     0.28 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.38.71010.19.17.14.620-0.8-0.41.23.66.28.298.87.65.63.41.40.40.51.8

Tide / Current Tables for Portsmouth Harbor Entrance, New Hampshire Current
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Portsmouth Harbor Entrance
Click for Map
Fri -- 12:58 AM EDT     1.66 knots Max Flood
Fri -- 04:17 AM EDT     -0.00 knots Slack
Fri -- 05:52 AM EDT     Sunrise
Fri -- 07:31 AM EDT     -2.28 knots Max Ebb
Fri -- 09:27 AM EDT     Moonrise
Fri -- 11:23 AM EDT     0.00 knots Slack
Fri -- 01:28 PM EDT     1.46 knots Max Flood
Fri -- 04:54 PM EDT     -0.00 knots Slack
Fri -- 07:31 PM EDT     Sunset
Fri -- 07:54 PM EDT     -1.97 knots Max Ebb
Fri -- 11:34 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.31.71.30.70.2-0.5-1.4-2.2-2.2-1.7-1.1-0.40.61.41.40.90.4-0.1-0.8-1.7-2-1.6-1.1-0.5

Weather Map and Satellite Images
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wmap_A
GOES Local Image of    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 (16,3,4,5)
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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.