Tuesday, September28, 2021
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Marine Weather and Tides
Thomaston, ME

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:32AMSunset 6:26PM Tuesday September 28, 2021 1:23 PM EDT (17:23 UTC) Moonrise 10:42PMMoonset 2:07PM Illumination 52% Phase: Third Quarter Moon; Moon at 22 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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ANZ150 Coastal Waters From Stonington, Me To Port Clyde, Me Out 25 Nm- 1229 Pm Edt Tue Sep 28 2021
This afternoon..NE winds 5 to 10 kt. Seas around 4 ft. A chance of showers.
Tonight..N winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 3 to 4 ft.
Wed..N winds 10 to 15 kt. Seas 2 to 3 ft.
Wed night..N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Thu..N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers.
Thu night..NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers.
Fri..NW winds 10 to 15 kt. Seas 2 to 3 ft.
Fri night..NW winds 10 to 15 kt. Seas 2 to 3 ft.
Sat..NW winds around 10 kt. Seas 2 to 4 ft.
Sat night..N winds 10 to 15 kt. Seas 4 to 6 ft. A chance of showers after midnight.
ANZ100 1229 Pm Edt Tue Sep 28 2021
Synopsis for stonington me to merrimack river ma out to 25 nm.. Low pressure will move along a stationary front draped across the waters this afternoon. The front will move south this evening, with an upper level low moving overhead through mid week. Low pressure gradually shifts east by early next week with high pressure building from the west. Meanwhile, distant tropical activity may send a long period swell into the gulf of maine late in the week and this weekend.


7 Day Forecast for Marine Location Near Thomaston, ME
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location: 43.97, -69.22     debug


Area Discussion for - Gray/Portland, ME
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FXUS61 KGYX 281636 AFDGYX

Area Forecast Discussion National Weather Service Gray ME 1236 PM EDT Tue Sep 28 2021

SYNOPSIS. A cold front with a few showers sags southward early today with a gradual north-to-south clearing trend and seasonable temperatures. For the middle and end of the week, an upper level low settles in overhead with cooler temperatures and mix of sun and clouds with the best chance for additional showers coming late Wednesday through early Friday. The pattern becomes less certain this weekend as upper level low pressure attempts to make an exit, and high pressure works to build northeastward into the region.

NEAR TERM /UNTIL 8 PM THIS EVENING/. 12:35PM Update . Tweaked POPs to fit with the latest radar and high res guidance trends. Still expecting another round of showers to develop along the coastal plain, and possibly a thunderstorm of two across southern NH and extreme southern Maine. Also brought highs down by a couple degrees along the coastal plain, with the cloud cover limiting how much temperatures warmed this morning.

9:00AM Update . A quick update to account for a few thunderstorms that have developed across southeast New Hampshire. Expecting these to move out over the next couple of hours, with the threat of scattered showers remaining through the rest of the day. The threat of thunder should diminish as the front continues to sag southward out of our CWA by late morning.

650am Update . Edited PoPs to delay shower development this morning. While there are a few weak returns on MRMS this morning, they have been shortlived ahead of low pres along the stationary front.

Previous Discussion . Today will feature some scattered showers south of the higher terrain, with partly to mostly cloudy skies.

A cold front that crossed into the coastal plain overnight will become stationary along the coast today. Low pressure amid the front will focus shower activity across mostly southern New Hampshire and the ME coast this afternoon. Overall, wetting rains are not anticipated. There may be some unlucky spots that see locally higher amounts with the slow, training nature of showers wrapping around the strengthening low. This will be fueled by the departing LLJ to the south, with it’s entrance region just off the Mass/NH coast. Analyzing lift/net divergence, there could be a rumble of thunder early this afternoon for the cities in southern NH with some non-zero elevated CAPE.

Winds turn north this evening as the front sluggishly moves south and east.

SHORT TERM /8 PM THIS EVENING THROUGH 6 PM WEDNESDAY/. Air behind the exiting front will be quite dry, and skies will trend mostly clear. With the cooler, drier air, the surface will radiate well and temps plummet inland. Those in the northern valleys may awake to some patchy frost if higher clouds hold off.

A brisk start to Wed as an upper low will drift into the region during the day. This will bring cloudiness and some showers mainly across the higher terrain and foothills. The warmest spots will be along the immediate coast, although it will still be seasonably cool with highs in the low to mid 60s.

LONG TERM /WEDNESDAY NIGHT THROUGH TUESDAY/. An upper level low descends through New England and cuts off nearly directly overhead mid- to late-week. This is sure to bring cooler and showery weather to the region, a sign of the changing seasons. The blocky hemispheric pattern lends uncertainty to the progression of the low this weekend into next week with a few rounds of showers possible by the time flow flattens . or low pressure is shunted elsewhere . which may very well take until the middle part of next week to accomplish.

Late Wednesday through Thursday . a surface low along a remnant boundary draped along eastern Gulf of Maine tracks north through Nova Scotia while another impulse pushes southward across the international border from Quebec. This pivoting interaction comes in response to the upper level low plunging south and cutting off over New England. For local sensible weather, this means widespread broken to overcast clouds and showers especially across the northern upslope regions. While relatively light winds should keep conditions from feeling properly raw, temperatures will still be limited to the 50s to near 60 for the most part. Although nobody lives up there on a permanent basis, many recreate it, so it's worth mentioning that icing and snow/ice pellets are expected to mix in with showers across the highest terrain (approximately 5+ kft) as h850 temperatures cool into the low- single digits.

Late Thursday into Friday . low pressure pushes north through the Canadian Maritimes and away from our region while high pressure builds upstream over the Great Lakes into Appalachia. Conditions should dry out south of the mountains from west to east, but northwest flow means showers continue across the higher terrain as long as moisture remains, at least through the first half of Friday. With clearing and high pressure pushing in . temperatures especially south and west should cool closer to 40 or perhaps the upper- 30s, though a PGF will be in play. With more sunshine on Friday, temperatures should be several degrees warmer, into the low- to mid-60s outside the mountains.

After this point, forecast confidence quickly drops off as model guidance struggles to handle the trough, its hit-or-miss impulses rotating around the feature, and the flanking ridges. Temperatures should remain on the cooler side of normal but any reprieve from the low overhead would allow for at least some warming through the weekend with strong ridging on either side of the low eventually winning out. While timing waves is a futile effort at this point of the forecast and in this synoptic/ hemispheric pattern . the weekend and start of next week should offer a mix of sun and clouds, a temperature rebound closer to normal, and daily shower chances, albeit low.

AVIATION /18Z TUESDAY THROUGH SUNDAY/. Short Term . Mostly VFR with brief MVFR cigs for NH terminals this morning. All sites trend VFR this afternoon with a N wind shift. -SHRA are expected for southern NH sites this afternoon as well as KPWM and KRKD.

Long Term . Unsettled weather will provide periods of MVFR restrictions in -SHRA, locally IFR during overnights with BR/FG, though VFR is still expected to prevail for the most part through this week. Northwest flow is expected to prevail over the region during this time.

MARINE. Short Term . Conditions expected to remain below SCA criteria through the period with a N wind shift this morning. Slight chance of thunder early this afternoon with showers.

Long Term . Low pressure over the Gulf of Maine during midweek will gradually shift north as high pressure builds from the southwest Winds are expected to stay below SCA thresholds. briefly approaching 20-25 kts at times in offshore flow. Primary impacts to the waters will be incoming long period swell associated with distant tropical systems. While wave heights shouldn't be particularly noteworthy to start . Hurricane Sam makes its closest approach this weekend and sends more wave energy our way with higher wave heights possible for the Gulf of Maine.

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

SYNOPSIS . Cornwell NEAR TERM . Clair SHORT TERM . Cornwell LONG TERM . Casey AVIATION . Casey/Clair MARINE . Casey/Cornwell


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44033 - Buoy F0103 - West Penobscot Bay 13 mi80 min NNE 3.9 G 5.8 62°F 62°F2 ft1009.6 hPa
44032 - Buoy E0104 - Central Maine Shelf 19 mi80 min E 9.7 G 12 61°F 61°F4 ft1009.3 hPa

Wind History for Bar Harbor, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Rockland, Knox County Regional Airport, ME9 mi28 minN 010.00 miOvercast61°F57°F87%1009.4 hPa

Link to 5 minute data for KRKD

Wind History from RKD (wind in knots)
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SW4W5W4CalmSW4CalmCalmCalmCalmW3CalmCalmNE4NE5N4NE4Calm
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2 days agoE5NE6NE4CalmCalm3E5E5E4SE4SE8SE7SE6SE7SE4SE3CalmCalmNE44Calm3N3W8

Tide / Current Tables for Tenants Harbor, Maine
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Tenants Harbor
Click for Map
Tue -- 04:38 AM EDT     7.94 feet High Tide
Tue -- 06:31 AM EDT     Sunrise
Tue -- 10:29 AM EDT     2.21 feet Low Tide
Tue -- 02:06 PM EDT     Moonset
Tue -- 04:45 PM EDT     8.72 feet High Tide
Tue -- 06:22 PM EDT     Sunset
Tue -- 09:58 PM EDT     Last Quarter
Tue -- 10:41 PM EDT     Moonrise
Tue -- 11:16 PM EDT     1.56 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.33.85.577.87.97.36.14.53.12.32.334.367.58.58.78.16.95.23.52.21.6

Tide / Current Tables for Friendship Harbor, Maine
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Friendship Harbor
Click for Map
Tue -- 04:31 AM EDT     7.71 feet High Tide
Tue -- 06:31 AM EDT     Sunrise
Tue -- 10:29 AM EDT     2.14 feet Low Tide
Tue -- 02:07 PM EDT     Moonset
Tue -- 04:38 PM EDT     8.46 feet High Tide
Tue -- 06:23 PM EDT     Sunset
Tue -- 09:58 PM EDT     Last Quarter
Tue -- 10:41 PM EDT     Moonrise
Tue -- 11:16 PM EDT     1.51 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.33.75.46.97.67.675.84.332.22.22.94.35.97.48.38.47.86.653.32.11.5

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