Tuesday, May26, 2020
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Marine Weather and Tides
Boothbay 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 5:01AMSunset 8:12PM Tuesday May 26, 2020 4:12 PM EDT (20:12 UTC) Moonrise 8:08AMMoonset 11:58PM Illumination 22% 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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ANZ152 Coastal Waters From Port Clyde, Me To Cape Elizabeth, Me Out 25 Nm- 333 Pm Edt Tue May 26 2020
Tonight..S winds 5 to 10 kt, becoming sw 5 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 4 ft. Areas of fog. Vsby 1 to 3 nm.
Wed..SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Areas of fog in the morning with vsby 1 to 3 nm.
Wed night..SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog. Vsby 1 to 3 nm after midnight.
Thu..SW winds around 15 kt with gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog in the morning with vsby 1 to 3 nm.
Thu night..SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. A chance of showers after midnight.
Fri..SW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 7 ft. A chance of showers.
Fri night..SW winds 15 to 20 kt with gusts up to 30 kt. Seas 5 to 8 ft. A chance of showers.
Sat..SW winds 10 to 20 kt with gusts up to 25 kt. Seas 4 to 7 ft. A chance of showers.
Sat night..W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of showers.
Sun..NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft.
Sun night..NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft.
ANZ100 333 Pm Edt Tue May 26 2020
Synopsis for stonington me to merrimack river ma out to 25 nm.. High pressure over the atlantic keeps south to southwest winds over the gulf of maine with areas of fog as dew points increase. A cold front or two gradually crosses the waters late Friday through Saturday with Thunderstorms possible. &&


7 Day Forecast for Marine Location Near Boothbay Harbor, ME
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location: 43.84, -69.64     debug


Area Discussion for - Gray/Portland, ME
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FXUS61 KGYX 262002 AFDGYX

Area Forecast Discussion National Weather Service Gray ME 402 PM EDT Tue May 26 2020

SYNOPSIS. Clouds and stratus return tonight into tomorrow morning before dissipating. There will be a slight chance for mountain thunderstorms Wednesday afternoon as temperatures soar into the 80s to low-90s. More widespread showers and thunderstorms are possible Thursday night through Saturday as a slow moving cold front crosses the area. Drier and cooler air arrives for the second half of the weekend into early next week.

NEAR TERM /THROUGH TONIGHT/. Warm and sunny conditions continue this afternoon with GOES visible satellite imagery showing stratus banked offshore. High pressure rotating over the northern Atlantic has suppressed most cloud cover over land except for some cumulus which has developed over the mountains. Ridging aloft will continue to build in from the south along the eastern seaboard in the near term. Impulses rounding the top of the ridge will attempt to steer a frontal boundary from southern Canada into northern New England the next few days.

Expect stratus to surge up along the coasts tonight before spreading inland and mainly affecting the Mid Coast of ME and the capital district overnight. Patchy fog is also likely along with some areas of denser fog. This will be most likely for the The CT River Valley may also see more fog. Overnight lows will be in the upper 50s to near 60 degrees.

SHORT TERM /WEDNESDAY THROUGH WEDNESDAY NIGHT/. Morning fog will dissipate Wednesday similar to this morning, and stratus should retreat back offshore. Tomorrow will be another warm day as we remain in a broad WAA pattern, with highs in the mid to upper 80s inland. Along the coast readings will be cooler due to early stratus and onshore flow. Heat indices touch 90 degrees in a few inland spots Wednesday afternoon with dew points in the 60s.

A boundary will remain to the north across central Quebec and the northern tip of Maine, and along with impulses in fast moving upper flow, will threaten some light QPF for the mountains. Despite ridging holding tight over much of the area, hi-res models are showing convective development in the afternoon and evening. There should be some isolated to scattered showers and thunderstorms across the mountains, but limited forcing for ascent will make it tough for them to last long or expand much spatially. Given impressive DCAPE, there may be isolated cells capable of localized gusty winds and heavy rainfall. In general QPF will average well below a quarter inch.

SW winds continue Wednesday night keeping temperatures in the 60s overnight.

LONG TERM /THURSDAY THROUGH TUESDAY/. Strong ridging over the East Coast continues to have a considerable and persistent impact on sensible weather locally. Warmth and moisture converges on its backside leading to an increasingly muggy airmass before a frontal system gradually crosses late in the week. A much drier and cooler airmass returns for the start of next week. Looking to ensemble anomalies . we'll run roughly plus 3 SD above normal heights and temperatures Thursday into Friday then switch to minus 2 SD below normal temperatures to start next week as heights aloft moderate behind the cold front. No major changes were made to the forecast except for normal day-to-day tweaks with updated guidance.

Thursday, warm southwest flow continues with ridging overhead keeping convection suppressed during the day except for a few showers over higher terrain over central/western Maine. Increasing clouds and humidity will ultimately limit highs; to what degree remains a source of uncertainty. There remains some hints in the guidance that low stratus may impact the coastal plain - low-level moisture pooling beneath a subsidence inversion under the ridge - so have trended highs down into the low- to mid-80s, which closely mirrors trends in MOS guidance.

By Thursday evening, a trough descends from the Canadian Plains down into the Great Lakes region. At the same time, cut off low pressure over the mid-Mississippi Valley and a weakly organized tropical system over the South become ingested ahead of the longwave. All of this points to continued, strong moisture transport into the northeast. The forcing northern stream trough will gradually push a frontal system across the region Friday and Saturday in the form of at least a couple cold fronts. In general a variety of minor impacts are possible with showers and storms but weak overlap between instability and shear leave little in the way of severe storm potential. Showers start Thursday evening and overnight behind the departing ridge axis as broad warm frontal forcing sails north into New England. PWAT increases to around 1.5-1.75" over the area with this feature; some ensemble members (and even the NAM12 . though admittedly outside of its temporal wheel house) hint at locally higher around 2". In spite of high moisture content a lack of forcing ought to preclude heavy rainfall threat.

Friday has the best chance at impacts with moderate instability developing during the afternoon as dew points soar into the mid- to upper-60s, temperatures again in the 80s. Best wind fields and shear lag over the lower Great Lakes region, closer to the forcing trough. While severe threat is low, do still expect thunderstorm activity with localized heavy rainfall. The bulk of QPF and wetting rainfall comes Friday night with the arrival of better synoptic forcing as the trough enters New England. Depending on how the surface frontal system evolved, additional thunderstorms are possible on Saturday.

As the trough approaches the coast, there is a chance of redevelopment along the front which could prolong precipitation chances . but this is generally an outlier solution and is not included in the forecast. Model consensus suggests a clean push of drier, cooler air behind the trough and dry conditions over the CWA by Sunday. The trough axis becomes elongated and remains overhead with embedded disturbances possibly producing showers mainly over the mountains Monday into Tuesday. Given the cooler airmass in place . cannot rule out snow, thankfully only along the highest peaks of the Presidentials.

AVIATION /19Z TUESDAY THROUGH SUNDAY/. Short Term . VFR conditions today will give way to more stratus and fog overnight. Stratus deck is sitting just offshore and will affect coastal terminals around sunset and beyond with LIFR/IFR conditions. There will be patchy and less dense fog inland as well. Conditions should lift tomorrow morning after sunrise. Some increasing cloud cover, some of which may be MVFR for KHIE, is expected tomorrow afternoon and evening with isolated -TSRA.

Long Term . There is a chance that low stratus or fog produces restrictions during the first half of Thursday, primarily across the south and along the coast. Otherwise VFR prevails during the day with light southwest winds. Widespread restrictions are likely in SHRA and TSRA Friday into Saturday with a gradually crossing frontal system. High pressure and northwest flow returns to start next week with restrictions unlikely.

MARINE. Short Term . South to southwest flow around the periphery of the Atlantic high will gradually increase in strength through Wednesday. This is not a favorable wind direction for mixing, especially considering the warm/moist air mass being advected over the still frigid waters, so for the most part we currently expect winds to remain below advisory levels. We may touch 25 kts tomorrow night, but at this time did not feel a SCA was needed.

Long Term . South to southwest flow continues to flirt with SCA conditions Thursday . SCAs are likely Friday with wind gusts around 25 kts and seas building 5-8 ft. A cold front or series of cold fronts crosses the waters Friday into Saturday with widespread showers and a few storms possible. High pressure returns to the waters to start next week.

GYX WATCHES/WARNINGS/ADVISORIES. ME . None. NH . None. MARINE . None.



NEAR TERM . Hanes SHORT TERM . Hanes LONG TERM . Casey


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44032 - Buoy E0104 - Central Maine Shelf 17 mi129 min S 5.8 G 5.8 52°F 51°F3 ft1021.6 hPa
44007 - PORTLAND 12 NM Southeast of Portland,ME 34 mi83 min S 7.8 G 9.7 53°F 53°F3 ft1021.8 hPa (-1.3)53°F
CASM1 - 8418150 - Portland, ME 35 mi55 min 56°F 52°F
44033 - Buoy F0103 - West Penobscot Bay 37 mi129 min S 5.8 G 7.8 50°F 2 ft1021.6 hPa

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wiscasset Airport, ME8 mi80 minSSE 610.00 miFair71°F59°F66%1022.5 hPa

Link to 5 minute data for KIWI

Wind History from IWI (wind in knots)
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Last 24hr4S5SE4CalmCalmCalmCalmCalmCalmS3CalmS3CalmCalmCalmSE3SE4SE4S6S66S8SE6S9
1 day ago66S54CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm3S8S5SE45S44
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Tide / Current Tables for Boothbay Harbor, Maine
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Boothbay Harbor
Click for Map
Tue -- 01:44 AM EDT     9.49 feet High Tide
Tue -- 05:02 AM EDT     Sunrise
Tue -- 08:08 AM EDT     Moonrise
Tue -- 08:12 AM EDT     -0.08 feet Low Tide
Tue -- 02:25 PM EDT     8.37 feet High Tide
Tue -- 08:09 PM EDT     Sunset
Tue -- 08:18 PM EDT     1.24 feet Low Tide
Tue -- 11:58 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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7.99.29.58.77.14.92.60.7-0.10.31.53.45.67.48.38.27.35.73.82.11.31.52.64.4

Tide / Current Tables for Lowe Point (northeast of), Sasanoa River, Maine Current
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Lowe Point (northeast of)
Click for Map
Tue -- 12:09 AM EDT     1.72 knots Max Flood
Tue -- 03:52 AM EDT     -0.00 knots Slack
Tue -- 05:02 AM EDT     Sunrise
Tue -- 06:34 AM EDT     -2.15 knots Max Ebb
Tue -- 08:08 AM EDT     Moonrise
Tue -- 10:19 AM EDT     0.00 knots Slack
Tue -- 12:43 PM EDT     1.50 knots Max Flood
Tue -- 04:35 PM EDT     -0.00 knots Slack
Tue -- 06:55 PM EDT     -1.67 knots Max Ebb
Tue -- 08:09 PM EDT     Sunset
Tue -- 10:02 PM EDT     0.00 knots Slack
Tue -- 11:58 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.71.510.5-0.1-1.1-2-2.1-1.5-0.9-0.20.61.31.51.10.70.4-0.4-1.3-1.7-1.3-0.6-00.6

Weather Map
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wmap_A
GEOS Local Image of Northeast    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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Gray/Portland, ME (16,3,4,5)
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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 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.