Sunday, June25, 2017 L-36.com


Marine Weather and Tides
York Harbor, 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 5:03AMSunset 8:28PM Sunday June 25, 2017 11:41 PM EDT (03:41 UTC) Moonrise 6:51AMMoonset 9:50PM 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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ANZ154 Coastal Waters From Cape Elizabeth, Me To Merrimack River, Ma Out 25 Nm- 1125 Pm Edt Sun Jun 25 2017
Rest of tonight..W winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of tstms. A chance of showers late this evening, then showers likely.
Mon..SW winds 5 to 10 kt. Seas 2 to 3 ft.
Mon night..SW winds 5 to 10 kt. Seas around 2 ft.
Tue..SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft.
Tue night..SW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers in the evening.
Wed..SW winds 5 to 10 kt. Seas 2 to 3 ft.
Wed night..W winds 5 to 10 kt. Seas around 2 ft.
Thu..SW winds 5 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Thu night..S winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers.
Fri..SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers and tstms.
Fri night..S winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers and tstms. Winds and seas higher in and near tstms.
ANZ100 1125 Pm Edt Sun Jun 25 2017
Synopsis for stonington me to merrimack river ma out to 25 nm.. A series of weak disturbances will cross the waters through Wednesday, bringing widely scattered showers. High pressure builds off the east coast on Thursday followed by low pressure crossing the waters Thursday night into Friday.

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 260326 aac
afdgyx
area forecast discussion... Updated
national weather service gray me
1126 pm edt Sun jun 25 2017

Synopsis
A series of upper level disturbances will cross the area this
week, bringing chances for showers or thunderstorms, especially
in the mountains. Otherwise temperatures will be near normal
with lower humidity into mid week. Warmer and more humid
conditions move in at the end of the week, with a chance of
showers and thunderstorms Thu night into Friday.

Near term until 6 am Monday morning
Update... A few more adjustments to pop based on latest trends.

Focus will be towards the coast with showers... Until S WV trof
swings overhead and could lead to some isolated precip in the
mtns.

Previous discussion... Upper level trough will support scattered
showers and thunderstorms into this evening. Best dynamics will
be in the north and mountains, where we have the highest pops.

There may be a couple storms with gusty winds and small hail,
but as of early this afternoon, the convection appears to be
relatively unorganized.

Temperatures will drop through the 50s tonight for overnight
lows. This will allow for some patchy fog to develop as dew
points remain in the lower 50s.

Short term 6 am Monday morning through Monday night
A short wave will be digging eastward over the central great
lakes on Monday, too far to the west to affect our weather.

Despite the lack of a true focusing mechanism, a broad upper
level trough over the region will trigger more diurnally driven
showers and perhaps a thunderstorm. Precipitation will mainly be
confined to western portions of the forecast area.

With temperatures cooling aloft, look for high temperatures to
be a little cooler on Monday, mainly in the 70s in most areas.

Upper level trough will remain to our west Monday night.

However, pops will gradually be on the decrease during the
night. Patchy late night fog a possibility once again.

Long term Tuesday through Sunday
Models continue to show a flattening 500 mb pattern with time
as WRN atlantic ridging begins to strengthen a little bit. After
higher amplitude trough swings through the region mid week,
will then trend toward warmer more humid conditions at the
surface, possibly sitting beneath the core of the 500 mb jet a
loft, with frequent passage of fast moving weak waves, and a
more active pattern for thunderstorms late this week and into
next weekend. Of course, the models have been struggling in the
extended period, and we are dealing with large scale models
trying to resolve mesoscale convection, so confidence remains
low in the day to day pops and features, as well as localized
wind direction, which will affect whether flow is onshore or or
offshore, although, with persistent w-sw flow aloft, should
allow for mainly warmer conditions.

On Tuesday, a 500 mb wave moves through the SW flow ahead of
the main trough to our west, and this will being a chance of
showers, and maybe some thunder. Will still be dealing with
cooler airmass, so tsra are possible, but should not be
widespread, but strong Sun should generate at least some
instability, and partly to moistly clouds skies in the
afternoon. Best forcing is to the north, so best chance for any
precip will be there. Highs will range from around 70 in the
mountains, to the mid to upper 70s in the south. Should see the
threat of showers diminish Tue evening, with lows generally in
the 50s.

Wednesday will see the trough axis move across the CWA with cold
pool aloft, so again, shra tsra will be possible, more
widespread in the mountains. Highs will be similar to tue,
generally in the 70s.

Wed night looks mostly dry, and Thursday will start to see
warmer air move in, with highs climbing back to the mid 70s to
low 80s, but cooler on the coast as a sea breeze develops.

Models show, what looks like convective system tracking eastward
out of the great lakes late in the day and crossing the region
thu night. Showing strong 925-850 mb jet with some shear in that
level. Both euro and GFS have been fairly consistent with this
feature in this time frame, especially across the north, so good
bet for some rain, especially Thu night. And some thunder is
likely.

After this confidence gets lower for timing of showers and
storms, still we look to get into 850 temps fluctuating around
15 c aloft, and tend to sit beneath the strongest 850 temp
gradient through the weekend. So, dependent on sfc features, it
could be warm and humid in this timeframe, with the coast
likely running cooler most days. We will probably not see
showers and storms every forecast period, but forecasting the
timing this far out is sketchy at best. As we get closer,
should be able to time the waves better.

Aviation 04z Monday through Friday
Short term... MainlyVFR conditions with the possibility of
convection lowering the ceilings and visibilities briefly into
the MVFR category, mainly in the north and mountains. Most of
the convection will occur during the afternoon hours Monday.

Long term...VFR should be predominant, with tempo flight
restrictions in showers and storms, especially in the mountains.

Marine
Short term... Winds and seas to remain below SCA thresholds in
the near short term portion of the forecast.

Long term... Winds seas remain below SCA through thu. May need
sca in SW winds Thu night into fri.

Tides coastal flooding
Very high astronomical tides continue tonight. Water levels will
likely reach the 12 foot flood stage in portland harbor. Will
issue another statement for tonight. High astronomical tides
finally begin to drop for tomorrow night.

Gyx watches warnings advisories
Me... None.

Nh... None.

Marine... None.

Near term... Legro


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
IOSN3 - Isle of Shoals, NH 11 mi41 min SW 13 G 13 65°F 1012.6 hPa (+1.6)57°F
BGXN3 - Great Bay Reserve, NH 11 mi56 min SW 4.1 66°F 1014 hPa59°F
44030 - Buoy B0102 - Western Maine Shelf 12 mi97 min W 5.8 G 12 69°F 54°F3 ft1011.7 hPa
WELM1 - 8419317 - Wells, ME 14 mi41 min W 9.9 G 14 69°F 50°F1012.6 hPa (+1.5)
WEXM1 - Wells Reserve, ME 15 mi41 min WSW 4.1 69°F 52°F
44098 - Jeffrey's Ledge, NH (160) 34 mi65 min 60°F3 ft
44007 - PORTLAND 12 NM Southeast of Portland,ME 38 mi51 min W 9.7 G 14 67°F 53°F3 ft1012 hPa (+1.7)54°F
CASM1 - 8418150 - Portland, ME 42 mi41 min 67°F 53°F1012.5 hPa (+1.9)
44029 - Buoy A0102 - Mass. Bay/Stellwagen 42 mi97 min WSW 7.8 G 9.7 64°F 61°F2 ft1012.1 hPa

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Pease Air Force Base / Portsmouth, NH10 mi1.7 hrsSW 510.00 miLight Rain66°F57°F74%1012.1 hPa
Rochester - Skyhaven Airport, NH18 mi50 minVar 310.00 miOvercast67°F55°F66%1012.2 hPa
Sanford, Sanford Regional Airport, ME19 mi45 minW 810.00 miLight Rain69°F54°F59%1013.6 hPa

Wind History from PSM (wind in knots)
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Last 24hrSW9W5SW5SW5W5W4SW4W6SW5W7W9SW10W7W9W9SW6W4SW8S7S7S5S4SW5SW8
1 day agoSW11SW6S4SW7SW8SW8SW8SW10
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2 days agoCalmCalmCalmCalmS4W3CalmSE3CalmCalmCalmE5E3SE6E6SE12SE8SE9SE10SE9S10S7SW11SW6

Tide / Current Tables for Fort Point, York Harbor, Maine
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Fort Point
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Sun -- 12:01 AM EDT     11.32 feet High Tide
Sun -- 05:04 AM EDT     Sunrise
Sun -- 06:42 AM EDT     -1.70 feet Low Tide
Sun -- 06:52 AM EDT     Moonrise
Sun -- 12:44 PM EDT     9.85 feet High Tide
Sun -- 06:54 PM EDT     -0.52 feet Low Tide
Sun -- 08:26 PM EDT     Sunset
Sun -- 09:49 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
11.310.78.96.130.3-1.3-1.6-0.425.17.89.59.88.96.94.31.80-0.50.42.65.68.6

Tide / Current Tables for Portsmouth Harbor Entrance, New Hampshire Current
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Portsmouth Harbor Entrance
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Sun -- 01:57 AM EDT     -0.00 knots Slack
Sun -- 04:52 AM EDT     -2.61 knots Max Ebb
Sun -- 05:04 AM EDT     Sunrise
Sun -- 06:52 AM EDT     Moonrise
Sun -- 08:44 AM EDT     0.00 knots Slack
Sun -- 10:49 AM EDT     1.62 knots Max Flood
Sun -- 02:33 PM EDT     -0.00 knots Slack
Sun -- 05:14 PM EDT     -2.22 knots Max Ebb
Sun -- 08:26 PM EDT     Sunset
Sun -- 08:53 PM EDT     0.00 knots Slack
Sun -- 09:49 PM EDT     Moonset
Sun -- 11:07 PM EDT     1.80 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.30.8-0-1.3-2.3-2.6-2.3-1.8-0.90.31.41.61.310.5-0.5-1.6-2.2-2.1-1.6-10.11.31.8

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 (23,6,7,8)
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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.