Sunday, April18, 2021
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Marine Weather and Tides
Gray, ME

Version 3.4
NOTICE
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 5:51AMSunset 7:30PM Sunday April 18, 2021 5:20 PM EDT (21:20 UTC) Moonrise 9:46AMMoonset 1:04AM Illumination 44% Phase: First Quarter Moon; Moon at 7 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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ANZ153 Casco Bay- 359 Pm Edt Sun Apr 18 2021
Tonight..W winds 5 to 10 kt. Seas 1 to 2 ft.
Mon..W winds around 5 kt, becoming S in the afternoon. Seas 1 to 2 ft.
Mon night..S winds 5 to 10 kt, becoming sw after midnight. Seas 1 to 2 ft.
Tue..SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 1 to 2 ft.
Tue night..W winds 10 to 15 kt with gusts up to 20 kt, becoming sw 5 to 10 kt after midnight. Seas 1 to 2 ft.
Wed..SE winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 to 2 ft. A chance of showers in the afternoon.
Wed night..S winds 10 to 15 kt, becoming sw after midnight. Seas 2 to 4 ft. Showers.
Thu..W winds 10 to 20 kt, becoming 15 to 20 kt in the afternoon. Seas 2 to 4 ft. A chance of showers in the morning.
Thu night..W winds 15 to 20 kt. Seas 2 to 4 ft.
Fri..W winds 15 to 20 kt. Seas 2 to 3 ft.
Fri night..W winds 10 to 15 kt. Seas 1 to 2 ft.
ANZ100 359 Pm Edt Sun Apr 18 2021
Synopsis for stonington me to merrimack river ma out to 25 nm.. A weak pressure pattern across the waters today into Monday is promoting relatively tranquil conditions across the waters. A cold front approaches the waters on Tuesday and may allow for a few wind gusts around 25 knots. The next frontal system approaches for Wednesday with an increasing southwest flow ahead of it. Westerly gales will be possible Thursday in the wake of a strong cold front.


7 Day Forecast for Marine Location Near Gray, ME
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location: 43.87, -70.27     debug


Area Discussion for - Gray/Portland, ME
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FXUS61 KGYX 182025 AFDGYX

Area Forecast Discussion National Weather Service Gray ME 425 PM EDT Sun Apr 18 2021

SYNOPSIS. Showery weather return to the region through the middle part of the coming week with isolated thundershowers possible. After seasonably warm temperatures early in the week, cooler conditions are expected after cold fronts cross during mid- week, then moderate again by the weekend.

NEAR TERM /TONIGHT/. Weak high pressure with patchy cloud cover leads to a benign overnight tonight with low temperatures in the 30s to near 40. A weak PGF will allow decoupling where clouds do clear out, but dew points around 30 to 35 today don't leave much more room for cooling tonight . although it does indicate that patchy valley fog is possible. In addition an area of mid- level convergence between broad ridging to the southwest and an exiting upper low over the maritimes is leading to shower and isolated thundershower activity over the Adirondacks this afternoon . these will track southeastward into southern New Hampshire before diminishing late this evening with the setting sun. Fog can be expected in the areas that pick up light rain with this.

SHORT TERM /MONDAY THROUGH MONDAY NIGHT/. The main story tomorrow is the passage of a weak cold front from west to east during the afternoon and evening. Will have showers with this front . steepening lapse rates associated with the cold front will produce a few hundred J/kg of MUCAPE which will enhance shower activity with isolated low-topped thundershowers, backed up by isolated thunder upstream over upstate New York at this present hour. Due to low freezing heights, cannot rule out some small hail or graupel. The front tracks east out over the waters later in the evening, losing steam and shower coverage in the process. Temperatures in southwest flow will warm into the 60s over most of the area tomorrow with a seabreeze developing during the afternoon. While dry, clouds will remain around the area tomorrow night . with lows in the 30s and 40s.

LONG TERM /MONDAY NIGHT THROUGH SUNDAY/. Overview . The long term portion of the forecast will be dominated by a couple of frontal passages during the work week, first on Tuesday and then again Wednesday into Wednesday night. The second one looks to bring a healthy round of widespread precipitation to the region, some of which may fall as snow in the mountains Wednesday night. Drier and cooler conditions arrive Thursday, along with breezy winds, followed by warming temperatures into the weekend.

Impacts . Minimal. Accumulating snow is possible in the mountains Wedensday into Wednesday night. Breezy winds are expected on Thursday but should remain well below advisory levels.

Forecast Details . Tuesday sees the arrival of a cold front from Canada. Not expecting any high-impact weather from this with the primary concerns being a chance of rain showers for northern and western areas and breezy winds gusting to around 30 mph during the day. Model guidance suggests that very modest instability and favorable lapse rates in the afternoon could lead to some isolated thunder . but have opted not to put any in the forecast for now.

Overnight Tuesday, a shortwave over the Great Lakes will help drive the formation of surface low pressure over the northern mid-Atlantic by Wednesday morning. The global models are in relatively good agreement on tracking the low northeast and near or through our region, along with a rather potent cold front. This system looks poised to bring a round of widespread precipitation to the region late Wednesday into Wednesday night . likely a welcome sight for many with the ongoing abnormally dry and moderate drought conditions in the region. We are still not quite in the window for exact amounts with this system, but somewhere between 0.5 and 1 inch of liquid precipitation looks likely for a large portion of the region. Some of that could fall as snow in the mountains, mainly Wednesday night, but elsewhere only rain is expected at this time. Unlike Tuesday, did opt to put in some isolated thunder for portions of central and southern NH Wednesday afternoon and evening as instability looks more favorable than Tuesday with similar lapse rates. A southerly low-level jet will also develop ahead of the front, likely allowing for gusty winds to 20-30 mph along the coast.

In the wake of this system, some lingering showers are possible on Thursday, along with cooler temperatures. The gusty winds will continue on Thursday and Friday, but now across the whole region and from the west as the low lingers over New Brunswick. Friday and Saturday look dry, although another system could be on the verge of affecting the region late next weekend.

AVIATION /20Z SUNDAY THROUGH FRIDAY/. Short Term . VFR prevails for all terminals through tomorrow night with northwest flow today turning southwest tomorrow, light and variable or calm during the overnights. There will also be a southerly to southeasterly component to winds for coastal terminals tomorrow afternoon as a seabreeze forms. There is a chance of -SHRA, and a slight chance or TSRA, during the day tomorrow which may lead to brief localized restrictions.

Long Term . Rather active period for aviation in the long term. Widespread VFR conditions expected to begin the period Tuesday, except possibly at HIE where rain showers could bring brief MVFR conditions (and very low probability of thunder). Widespread MVFR conditions return Tuesday night as low pressure moves toward the region; widespread IFR conditions expected on Wednesday in rain showers. Isolated thunder possible for LEB/CON/MHT/PSM along with the showers on Wednesday. Showers continue Wednesday night, but conditions improve on Thursday. Wednesday and Thursday also see gusty winds, southerly on Wednesday and westerly on Thursday.

MARINE. Short Term . A weak gradient keeps seas and winds fairly tranquil through tomorrow night. A southeasterly breeze will yield to an afternoon seabreeze tomorrow near the shore with a chance for a shower later in the evening.

Long Term . Active period on the waters in the long term. Winds will be the primary concern, becoming gusty on Tuesday and mostly continuing through the reminder of the week. Extended periods of SCA conditions expected. Low-end gales remain possible for the outer waters Wednesday night into Thursday.

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



NEAR TERM . Casey SHORT TERM . Casey LONG TERM . Watson


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CASM1 - 8418150 - Portland, ME 15 mi51 min 50°F 46°F
44007 - PORTLAND 12 NM Southeast of Portland,ME 25 mi31 min SSW 7.8 G 9.7 44°F 43°F2 ft1006.7 hPa39°F
WEXM1 - Wells Reserve, ME 40 mi81 min S 4.1 48°F 40°F
WELM1 - 8419317 - Wells, ME 41 mi51 min S 6 G 8 46°F 46°F1007.5 hPa
44030 - Buoy B0102 - Western Maine Shelf 48 mi77 min SSE 5.8 G 7.8 45°F 3 ft1005.8 hPa

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Auburn-Lewiston, ME12 mi25 minWNW 710.00 miOvercast51°F34°F52%1007.9 hPa
Portland, Portland International Jetport, ME15 mi30 minVar 410.00 miOvercast50°F36°F59%1007.1 hPa

Link to 5 minute data for KLEW

Wind History from LEW (wind in knots)
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Last 24hrN10N9N4NW4N4NW3CalmN4NW3NW3E3CalmCalmCalmCalmW5N6W8NW9N6NW7N10NW9NW7
1 day agoNE13
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2 days agoSE7S6SE3SE6E6NE3CalmNE7NE5N4N8NE5NE10NE9NE8--NE13
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Tide / Current Tables for Prince Point, Maine
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Prince Point
Click for Map
Sun -- 01:03 AM EDT     Moonset
Sun -- 03:37 AM EDT     9.04 feet High Tide
Sun -- 05:52 AM EDT     Sunrise
Sun -- 09:45 AM EDT     Moonrise
Sun -- 10:03 AM EDT     1.00 feet Low Tide
Sun -- 04:21 PM EDT     7.96 feet High Tide
Sun -- 07:28 PM EDT     Sunset
Sun -- 10:12 PM EDT     1.99 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.36.17.88.998.26.84.92.91.511.42.445.87.27.97.875.642.622.3

Tide / Current Tables for Falmouth Foreside, Maine
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Falmouth Foreside
Click for Map
Sun -- 01:03 AM EDT     Moonset
Sun -- 03:38 AM EDT     8.95 feet High Tide
Sun -- 05:52 AM EDT     Sunrise
Sun -- 09:45 AM EDT     Moonrise
Sun -- 10:03 AM EDT     1.03 feet Low Tide
Sun -- 04:22 PM EDT     7.89 feet High Tide
Sun -- 07:28 PM EDT     Sunset
Sun -- 10:12 PM EDT     2.05 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.36.17.78.88.98.26.84.92.91.511.42.445.77.17.87.775.642.72.12.3

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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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