Friday, December6, 2019
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Marine Weather and Tides
Castine, ME

Version 3.4
NOTICE
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.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:55AMSunset 3:56PM Friday December 6, 2019 10:12 AM EST (15:12 UTC) Moonrise 2:26PMMoonset 1:51AM Illumination 72% Phase: Waxing Gibbous; Moon at 10 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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ANZ151 Penobscot Bay- 918 Am Est Fri Dec 6 2019
Rest of today..W winds up to 10 kt. Seas 1 foot or less. A chance of snow showers this afternoon with vsby 1 to 3 nm.
Tonight..N winds up to 10 kt. Seas 1 foot or less. Snow showers likely in the evening with vsby 1 to 3 nm.
Sat..NW winds 5 to 10 kt. Seas 1 foot or less.
Sat night..NW winds 5 to 10 kt. Seas 1 foot or less.
Sun..W winds up to 10 kt, becoming sw with gusts up to 25 kt in the afternoon. Seas 1 foot or less, then 2 to 3 ft in the afternoon.
Sun night..SW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft.
Mon..SW winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 4 ft. Rain likely. Vsby 1 to 3 nm.
Mon night..SW winds 15 to 25 kt with gusts up to 35 kt. Seas 4 to 6 ft. Rain. Vsby 1 to 3 nm.
Tue..SW winds 10 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Rain likely. Vsby 1 to 3 nm.
Tue night..W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of rain. Vsby variable to less than one quarter nm.
ANZ100 918 Am Est Fri Dec 6 2019
Synopsis for stonington me to merrimack river ma out to 25 nm.. A weak area of low pressure will move south of the waters late today and tonight. High pressure builds over the waters over the weekend with low pressure approaching from the west early next week. &&


7 Day Forecast for Marine Location Near Castine, ME
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location: 44.39, -68.8     debug


Area Discussion for - Gray/Portland, ME
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FXUS61 KGYX 061430 AAB AFDGYX

Area Forecast Discussion . UPDATED National Weather Service Gray ME 930 AM EST Fri Dec 6 2019

SYNOPSIS. A weak area of low pressure will cross the region this afternoon. Much colder air will sweep across the forecast area tonight and Saturday. Warmer temperatures and some rain are expected early next week before a cold front brings in another dose of Arctic cold during the second half of the next work week.

NEAR TERM /UNTIL 6 PM THIS EVENING/. 930 AM Update . GOES satellite and radar imagery are showing snow moving across NY State and into Vermont this morning. Have only changed weather and QPF/snow amounts lightly as near term CAM models are still indicating 1-3" across southern NH through tonight, with less coverage north and east. Short of an advisory, we will likely issue an SPS for slick commutes this afternoon. Still we have a little way to go with top-down saturation with dew points only in the lower teens in NH and ME.


Update . Have updated the forecast based on current observations and latest radar imagery. Have upped snowfall amounts slightly over southern portions of the forecast area. Latest mesoscale model trends have increased the QPF for southern New Hampshire and extreme southwest Maine overnight. Otherwise, just minor changes to the latest forecast package.

Prev Disc . Scattered upslope snow showers will gradually end over the mountains this morning.

A clipper type system will then cross the region this afternoon. Have leaned closely towards the higher pops of the latest HRRR as snow will likely develop over southern New Hampshire during the late morning hours before pushing east. With the track of this system, expect an inch or two snow accumulation across southern New Hampshire and into portions of York County in Maine. Some of the higher elevations over southern New Hampshire may pick up a little more in the way of precipitation. Further to the north, there may be a only a coating of snow.

Winds will become light this afternoon in advance of this weak system with highs in the 20s to lower 30s in most areas.

SHORT TERM /6 PM THIS EVENING THROUGH SUNDAY/. Light snow continues for a short period along and near the coastline as the low slowly intensifies as it exits into and through the Gulf of Maine.

Much colder air will follow this system on northwesterly breezes tonight with upslope snow showers continuing in the mountains. By Saturday, the core of the cold air will be over the region. There will be good mixing with temperatures in the -14C to -18C range, yielding highs only in the teens and 20s across the region.

Saturday night will likely be the coldest night over the next few days as high pressure crests over the region. There is the potential for good radiational cooling in some areas with a fresh snowfall and clear skies. Question will be the gradient and whether or not winds can go calm during the night as a ridge of high pressure remains to our west during much of the night. Nevertheless, expect readings in the single numbers in many areas.

Sunday will remain fair and dry as high pressure begins to exit off the coastline. A gradual warm up will begin as well which sets us up for the long range portion of the forecast.

LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/. The high pressure ridge will crest across New England on Sunday and continue eastward into the Central Atlantic and strengthen on Monday and Tuesday. A shortwave will dive southeast through the High Plains over the weekend and will lead to the development of low pressure across the Great Lakes on Monday. The low will strengthen as it rides east-northeastward through the eastern Great Lakes and down the Saint Lawrence River Valley through late Tuesday. Moisture will ride north on the western periphery of the ridge, and the strengthening low pressure center will lead to the development of widespread precipitation across the northeast. Some spotty precipitation is possible by the late morning hours Monday, but the bulk of the precipitation looks to arrive late in the afternoon and evening Monday. The steadiest precipitation from this round looks most likely to wind down by Tuesday Morning, but showers may linger through the afternoon on Tuesday.

The progression of the frontal boundary has been the subject of some disagreement between the models late Tuesday and into Wednesday. The GFS has been progressively slower with the frontal passage over the past several runs, and the latest ECMWF has lurched to a slower fropa solution. This has implications for precipitation, with another round of moisture riding north along this front late Tuesday and into early Wednesday. This would lead to another period of predominantly rainfall, with very little if any break from the first round.

An extended period of warm air advection will initiate on Sunday, occuring above the surface earlier on Sunday. Temperatures will be slow to rise above freezing near the surface across interior sections through Monday morning, but the threat for any light freezing rain at the onset of the precipitation appears to be diminishing with the arrival of the precipitation not being until later on the day Monday. Additionally, with the extended period of WAA lasting into Tuesday, warming above freezing appears inevitable at this point across the entire CWA, with temperatures warming into the 50s across the coastal plain.

Once the frontal boundary passes, CAA will take hold on Wednesday as an Arctic high pressure center builds across the region Thursday and Friday. Long range deterministic models and ensembles support below normal temperatures late in the week, perhaps aided by a secondary cold front. Unsettled weather is likely to persist after cold FROPA under mean troughing, most likely relegated to the upslopes.

AVIATION /14Z FRIDAY THROUGH TUESDAY/. Short Term . VFR conditions in the north with MVFR and areas of LIFR conditions in snow over southern sections today. Conditions improve tonight outside the mountains on brisk northwesterly breezes. VFR conditions will then dominate through Sunday.

Long Term . Ceilings lower and rain overspreads the area Monday with likely degradation to MVFR CIGS, IFR CIGs/VSBY in pockets of heavier rainfall. Southerly surface winds generally <15kts gradually turn westerly by Wednesday behind the cold front with gusty winds likely. Remaining rain gradually turns to snow Tuesday night into Wednesday with additional drops in VSBY likely.

MARINE. Short Term . Winds continue to gradually ease this morning. SCAs are now in effect for late tonight into Saturday. Northwesterly winds will increase behind the departing clipper tonight.

Long Term . Along with SCA seas, a period or two of Gale Force winds are possible, primarily Monday and Tuesday nights. Timing may differ based on model trends.

GYX WATCHES/WARNINGS/ADVISORIES. ME . None. NH . None. MARINE . Small Craft Advisory from midnight tonight to 4 PM EST Saturday for ANZ150-152-154.

NEAR TERM . Hanes SHORT TERM . Cannon LONG TERM . Casey/Clair


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44033 - Buoy F0103 - West Penobscot Bay 25 mi128 min W 16 G 21 29°F 1 ft1014 hPa
ATGM1 - 8413320 - Bar Harbor, ME 32 mi54 min NNW 12 G 17 29°F 42°F1015.2 hPa
44034 - Buoy I0103 - Eastern Maine Shelf 42 mi128 min W 19 G 23 32°F 48°F4 ft1014.4 hPa
MDRM1 - Mt Desert Rock, ME 46 mi72 min W 17 G 22 1015.1 hPa (+1.8)

Wind History for Bar Harbor, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bar Harbor, Hancock County-Bar Harbor Airport, ME23 mi76 minW 710.00 miOvercast27°F16°F63%1015.4 hPa

Link to 5 minute data for KBHB

Wind History from BHB (wind in knots)
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Last 24hr3W4SW5W4W4W3W3NW3NW5NW5NW4W3W6W66W5W8W7W9W434W7W8
1 day agoSW3SW5S4CalmCalmCalmCalmCalmN4N3N3N3CalmNW3CalmCalmNW3CalmNW3CalmCalmCalmCalmNW4
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Tide / Current Tables for Castine, Penobscot Bay, Maine
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Castine
Click for Map
Fri -- 12:08 AM EST     1.38 feet Low Tide
Fri -- 12:51 AM EST     Moonset
Fri -- 06:28 AM EST     9.36 feet High Tide
Fri -- 06:56 AM EST     Sunrise
Fri -- 12:38 PM EST     1.74 feet Low Tide
Fri -- 01:25 PM EST     Moonrise
Fri -- 03:55 PM EST     Sunset
Fri -- 06:46 PM EST     9.16 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.41.734.96.98.49.39.28.36.54.52.91.91.82.64.26.27.98.99.18.56.94.93

Tide / Current Tables for Fort Point, Penobscot River, Maine
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Fort Point
Click for Map
Fri -- 12:08 AM EST     1.41 feet Low Tide
Fri -- 12:51 AM EST     Moonset
Fri -- 06:29 AM EST     9.53 feet High Tide
Fri -- 06:56 AM EST     Sunrise
Fri -- 12:38 PM EST     1.77 feet Low Tide
Fri -- 01:25 PM EST     Moonrise
Fri -- 03:55 PM EST     Sunset
Fri -- 06:47 PM EST     9.32 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.41.83578.69.49.48.46.74.62.921.82.64.36.2899.38.67.153.1

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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Wind Forecast for Gray/Portland, ME (10,2,3,4)
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Ground Weather Radar Station Portland, ME
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