Sunday, July5, 2020
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Marine Weather and Tides
York Harbor, ME

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 5:08AMSunset 8:26PM Sunday July 5, 2020 3:36 AM EDT (07:36 UTC) Moonrise 9:11PMMoonset 5:19AM Illumination 100% Phase: Full Moon; Moon at 15 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- 951 Pm Edt Sat Jul 4 2020
Overnight..S winds 5 to 10 kt. Seas around 3 ft. Patchy drizzle. Areas of fog. Vsby 1 to 3 nm, decreasing to variable to less than one quarter nm.
Sun..S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 to 3 ft. Patchy drizzle in the morning. Areas of fog in the morning with vsby 1 to 3 nm.
Sun night..S winds 5 to 15 kt, becoming 5 to 10 kt after midnight. Gusts up to 25 kt. Seas around 3 ft. A chance of tstms in the evening. A chance of showers. Some tstms may produce gusty winds and small hail in the evening.
Mon..N winds 5 to 10 kt with gusts up to 20 kt, becoming E in the afternoon. Seas around 3 ft.
Mon night..S winds around 5 kt. Seas 2 to 3 ft.
Tue..S winds 5 to 10 kt, becoming 5 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft.
Tue night..S winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft.
Wed..S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft.
Wed night..SW winds 5 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. A chance of showers.
Thu..SW winds 5 to 10 kt. Seas 2 to 4 ft.
Thu night..SW winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. Winds and seas higher in and near tstms.
ANZ100 951 Pm Edt Sat Jul 4 2020
Synopsis for stonington me to merrimack river ma out to 25 nm.. Moist onshore flow continues tonight, with areas of fog developing again. A front will cross the waters late Sunday, with showers and Thunderstorms. Some of these may be on the stronger side. Otherwise high pressure persists over the maritimes with mostly onshore flow into midweek. &&


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 050155 AFDGYX

Area Forecast Discussion National Weather Service Gray ME 955 PM EDT Sat Jul 4 2020

SYNOPSIS. A cold front will cross the area Sunday bringing a chance for showers along with afternoon and evening thunderstorms. A few thunderstorms could produce strong gusty winds and hail. Heat and humidity will build as we head through next week, along with a chance of afternoon and evening showers and thunderstorms most days.

NEAR TERM /UNTIL 6 AM SUNDAY MORNING/. 955 PM Update . Low clouds and fog continue to progress inland late this Saturday evening. Otherwise, any showers have dissipated. The fog could be locally dense overnight but so far visibilities have remained at or above 1 mile at most locations.

635 PM Update . Have updated the forecast mainly for minor adjustments to sky and wx grids as low clouds and fog continue to roll inland with the loss of daytime heating. A few areas of dense fog are likely but confidence on widespread 1/4 mile or less not high enough at this point for a dense fog advisory. Will continue to monitor. Otherwise, isolated convective showers in the mountains and foothills will dissipate shortly.

Previously .

A few stray convection cells popping up just E of Somerset county,so will have to watch those and the possibility of a couple more developing a little further west thru late afternoon. Other than that watching fog offshore, and in some cases currently onshore, start to creep back inland, and this trend will likely continue through the evening with fog and stratus returning along the coast for much of tonight. Should see the stratus move inland into the coastal plain as well this evening. I think the mtns will stay mainly clear, although valley fog is likely to develop as well, but Tds also dropping, so that will help limit any of the stratus from making too far into the foothills. Lows range the mid-upper 50s in the mtns to the low 60s along the coast and in srn NH.

SHORT TERM /6 AM SUNDAY MORNING THROUGH SUNDAY NIGHT/. Once again on sunday will be dealing with light flow and fog/stratus that will be slow to dissipate, so any sun on the coastal plain will likely not be seen until closer to midday. The weak flow that starts the day should switch onshore quickly, but also with approaching short wave, may see enuf of PG to help the S-SE flow move further inland. NH will be warmer than warmer ME because of this with highs in the low to mid 80s, while highs in ME will be around 80 inland, and in the 70s near the coast.

500 mb wave will begin to track SE out Quebec and into nrn New England during the afternoon, which will be enuf to se off some convection. Timing is such that this looks like a late afternoon early evening event, with probably a line of convection developing and moving SE across the CWA. Could some stronger convection develop along the main boundary and the more unstable just to the west of it, mainly in central and srn NH and interior SW ME. Thinking strong winds will be the biggest, but these will also be more good lightning producers.

Storm should diminish by late evening with some slightly cooler and drier air behind it, but timing is such that the air mass may not mix down until Monday morning, and we could be stuck with another round of fog Sun into early Mon. Lows will be in the 40s again to around 60 in srn Nh and along the coast.

LONG TERM /MONDAY THROUGH SATURDAY/. The ensemble and deterministic model solutions are in good agreement on the long wave pattern through next week and into the upcoming weekend. We begin the period with rising heights as an upper low exits into the maritimes. The resulting pattern will feature low amplitude flow and a mean jet position to our north . allowing the heat and humidity to build with little in the way of relief this period. In the dailies . an area of high pressure builds east into the region for Monday with comfortable temperatures and humidity levels to round out the holiday weekend. By Tuesday the high has shifted offshore . with the return southerly flow ushering progressively warmer and more humid air into the region. On both Wednesday and Thursday . passing shortwave impulses and associated weak surface reflections should trigger fresh rounds of showers and thunderstorms. Ridging should bring a quieter day on Friday with only widely scattered convection possible across inland sections. The next shortwave impulse and weak surface reflection should bring a round of more widespread convection to the area by late Saturday.

AVIATION /02Z SUNDAY THROUGH THURSDAY/. Short Term . Fog/stratus to move back again early this evening along the coast with vly fog at KLEB/KHIE. The fog/stratus will be slow diminish Sun morning, with brief improvement to VFR Sunday, before a line of SHRA/TSRA move through late aft and early eve.

Long Term .

Wed - Thu . Sct MVFR with brief lcl IFR in afternoon and evening SHRA/TSRA.

MARINE. Short Term . Winds seas stay below SCA criteria. Persistent fog bank remain in place through Sunday, and may clear Sunday night.

Long Term .

Wed . Winds could approach SCA outside the bays.

TIDES/COASTAL FLOODING. High astronomical tides could bring some splash over and beach erosion around the time of high tide late this evening. However . we should see less of an impact than last night.

GYX WATCHES/WARNINGS/ADVISORIES. ME . Beach Hazards Statement through Sunday evening for MEZ023>028. NH . Beach Hazards Statement through Sunday evening for NHZ014. MARINE . None.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44073 9 mi152 min SSE 5.8 G 7.8 64°F 64°F
BGXN3 - Great Bay Reserve, NH 11 mi111 min E 1.9 63°F 1014 hPa
IOSN3 - Isle of Shoals, NH 11 mi36 min SE 8.9 G 9.9 62°F 1012.9 hPa (-0.5)62°F
44030 - Buoy B0102 - Western Maine Shelf 12 mi92 min SSE 5.8 G 7.8 2 ft1019.9 hPa
WELM1 - 8419317 - Wells, ME 14 mi48 min S 4.1 G 6 62°F 64°F1014.1 hPa
WEXM1 - Wells Reserve, ME 15 mi96 min Calm 63°F 62°F
44098 - Jeffrey's Ledge, NH (160) 34 mi31 min 64°F3 ft
44007 - PORTLAND 12 NM Southeast of Portland,ME 38 mi46 min S 5.8 G 7.8 61°F 60°F2 ft1013.1 hPa (+0.0)61°F
44029 - Buoy A0102 - Mass. Bay/Stellwagen 42 mi92 min S 9.7 G 12 63°F 2 ft1011.3 hPa
CASM1 - 8418150 - Portland, ME 42 mi48 min 63°F 62°F

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Pease Air Force Base / Portsmouth, NH10 mi40 minESE 30.75 miFog/Mist62°F61°F99%1013.4 hPa
Rochester - Skyhaven Airport, NH18 mi45 minESE 32.00 miFog/Mist63°F61°F93%1013.2 hPa
Sanford, Sanford Regional Airport, ME19 mi40 minSE 37.00 miOvercast63°F62°F97%1014 hPa

Link to 5 minute data for KPSM

Wind History from PSM (wind in knots)
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Last 24hrN5N5N3NW3NW3CalmCalmCalmE6E6SE9SE7SE8SE7SE9SE6SE8SE6SE5E4SE4E5E4E3
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2 days agoCalmCalmSW3W3W3W3CalmW5S5SW4SW3SE4SE9S8SE8SE6CalmCalmNW5N3W3CalmCalmNW4

Tide / Current Tables for York Harbor, Maine
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York Harbor
Click for Map
Sun -- 12:44 AM EDT     Full Moon
Sun -- 05:09 AM EDT     Sunrise
Sun -- 05:18 AM EDT     Moonset
Sun -- 06:07 AM EDT     -0.94 feet Low Tide
Sun -- 12:12 PM EDT     9.03 feet High Tide
Sun -- 06:12 PM EDT     0.33 feet Low Tide
Sun -- 08:24 PM EDT     Sunset
Sun -- 09:10 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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10.39.16.94.21.6-0.2-0.9-0.41.43.96.48.298.77.35.12.91.10.40.72.34.87.49.4

Tide / Current Tables for Portsmouth Harbor Entrance, New Hampshire Current
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Portsmouth Harbor Entrance
Click for Map
Sun -- 12:44 AM EDT     Full Moon
Sun -- 01:11 AM EDT     -0.00 knots Slack
Sun -- 04:11 AM EDT     -2.24 knots Max Ebb
Sun -- 05:09 AM EDT     Sunrise
Sun -- 05:19 AM EDT     Moonset
Sun -- 08:00 AM EDT     0.00 knots Slack
Sun -- 10:03 AM EDT     1.17 knots Max Flood
Sun -- 01:44 PM EDT     -0.00 knots Slack
Sun -- 04:25 PM EDT     -1.83 knots Max Ebb
Sun -- 08:02 PM EDT     0.00 knots Slack
Sun -- 08:24 PM EDT     Sunset
Sun -- 09:10 PM EDT     Moonrise
Sun -- 10:12 PM EDT     1.41 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.90.2-1-1.9-2.2-2.2-1.8-1.1-00.91.21.110.6-0.3-1.3-1.8-1.8-1.5-1-011.41.3

Weather Map
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wmap_A
GEOS 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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Gray/Portland, ME (3,6,7,8)
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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 numerous 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.