Monday, April6, 2020
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Marine Weather and Tides
Damariscotta, 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 6:09AMSunset 7:14PM Monday April 6, 2020 12:57 AM EDT (04:57 UTC) Moonrise 5:27PMMoonset 5:47AM Illumination 97% Phase: Waxing Gibbous; Moon at 13 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- 1041 Pm Edt Sun Apr 5 2020
.small craft advisory in effect until 8 am edt Monday...
Overnight..S winds 10 to 15 kt, becoming w. Seas 4 to 6 ft. A chance of sprinkles late this evening, then a chance of showers.
Mon..NW winds 10 to 15 kt, becoming W in the afternoon. Gusts up to 25 kt. Seas 3 to 5 ft.
Mon night..W winds 5 to 10 kt. Seas 2 to 3 ft.
Tue..W winds 5 to 10 kt, becoming sw in the afternoon. Seas around 2 ft.
Tue night..S winds around 5 kt, becoming ne after midnight. Seas 1 to 2 ft.
Wed..E winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 nm in the morning.
Wed night..E winds 5 to 10 kt. Seas around 2 ft. A chance of showers. Vsby 1 to 3 nm after midnight.
Thu..SE winds 10 to 15 kt with gusts up to 30 kt. Seas 3 to 5 ft. Showers likely.
Thu night..W winds 10 to 20 kt with gusts up to 25 kt. Seas 4 to 7 ft. Showers likely.
Fri..W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft.
Fri night..W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft.
ANZ100 1041 Pm Edt Sun Apr 5 2020
Synopsis for stonington me to merrimack river ma out to 25 nm.. A weak cold front will cross the waters tonight followed by high pressure for Monday. A weak secondary cold front will pass across the waters Tuesday. Thereafter, an area of low pressure is expected to pass just south of new england on Wednesday possibly followed by a more significant low pressure system for Thursday. &&


7 Day Forecast for Marine Location Near Damariscotta, ME
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location: 43.93, -69.42     debug


Area Discussion for - Gray/Portland, ME
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FXUS61 KGYX 060243 AFDGYX

Area Forecast Discussion National Weather Service Gray ME 1043 PM EDT Sun Apr 5 2020

SYNOPSIS. Fair weather on Monday and Tuesday as high pressure builds into the region for the first part of the week. A system will pass south of us on Wednesday bringing clouds with showers across the south. A stronger system will move through on Thursday with widespread rain expected.

NEAR TERM /UNTIL 6 AM MONDAY MORNING/. 1040 PM . A few showers moving out of the mtns and into the ME foothills ahead of the front before weakening as they near the coast, so could see a shower or sprinkle before midnight, but should be done with skies clearing.

715 PM . Cold front crossing VT attm. Wind shift is apparent along with drop in Td, but temps aren't all that different behind the front. Showers should pick up in the mountains over the next few hours before winding down toward midnight, but forcing is weak and overall not expecting much in the way of QPF. In the south, the showers will become more widely sct and near the coast may only amt to a few sprinkles.

Previously . A weak cold front will cross the area tonight with scattered rain and snow showers. Overall the boundary looks pretty moisture starved . so the best chance for measurable precip will be in the higher terrain. Temps will gradually fall as cloud cover begins to clear late tonight.

SHORT TERM /6 AM MONDAY MORNING THROUGH MONDAY NIGHT/. Main story Mon looks to be deep mixing during the day. Forecast soundings have mixing layer increasing to around 800 mb at its peak So despite the cold front. mixing down temps from that height still give us highs well into the 50s if not 60s in Srn zones. This will be coupled with dewpoints mixing down from the 925 to 850 mb layer. This should drop afternoon dewpoints into the mid teens . making RH values generally 15 to 20 percent. Lastly winds should be a steady breeze . with some gusts around 15 to 20 mph. This should elevate the fire danger for Srn zones of the forecast area . where snow has long been melted and surface fuels have dried out of the last couple of days. For now I will be issuing a SPS for elevated fire danger . but conditions with a little more wind may lead to red flag conditions.

LONG TERM /TUESDAY THROUGH SUNDAY/. Fair weather continues for the first part of next week as and upper level low moves off to Newfoundland leaving us under weak NWly flow aloft and high pressure at the surface. As we move into the latter part of the week the pattern be comes more active as several short waves move into the area.

By Wednesday a wave moving out of the Great Lakes brings scattered showers. The focus of the surface low looks to remain south of our area keeping the highest pops along the Mass border.

The active pattern continues with a second short wave arriving quick on the heels of the first. This time the wave dropping out of the Canadian prairies in amplified by a southern stream wave rounding the base of the closed low which has remained over the 4 corners region. The result is a more robust system for us by Thursday. The main low remains north with a strong cold front draped south across the east coast. Secondary low development along that front as it moves over the Gulf stream will help to further enhance precipitation for our region.

After the storm departs on Friday an active pattern will continue with upper level cyclonic flow bringing scattered showers and unsettled weather through the start of next week.

AVIATION /03Z MONDAY THROUGH FRIDAY/. Short Term . Widespread VFR expected despite cold front crossing the area tonight. SHRA will be fairly scattered so overall expect MVFR conditions should be isolated and TEMPO.

Long Term . VFR under high pressure for the first part of the week will be replaced by cloud cover and showers across the south on Wednesday as low pressure passes to the south. Some MVFR possible through the afternoon. A stronger storm will develop and cross the area on Thursday with IFR and rain likely.

MARINE. Short Term . Seas continue to gradually diminish outside the bays. SCA remains in effect S of Port Clyde for hazardous seas until Mon morning. High pressure will take control and allow seas to diminish below 5 ft Mon into Tue.

Long Term . High pressure with light flow through the first part of the week. A weak system will pass south of the waters on Wednesday. Increasing southerly flow will develop with SCA likely on the outer waters on Thursday.

TIDES/COASTAL FLOODING. Astronomical tides peak at 05Z on April 9th with 11.6ft at Portland. With onshore flow due to the approaching storm, minor surge may be enough to reach flood stage across southern Maine and this time period will need to be monitored for possible coastal flooding.

EQUIPMENT. The last GYX upper air observation was March 25 at 12Z. Unfortunately, a disruption in gas supply has temporarily halted observations from GYX. The order has been placed but a date of delivery remains TBD.

GYX WATCHES/WARNINGS/ADVISORIES. ME . None. NH . None. MARINE . Small Craft Advisory until 8 AM EDT Monday for ANZ152-154.

SYNOPSIS . Curtis NEAR TERM . Cempa/Legro SHORT TERM . Legro LONG TERM . Curtis AVIATION . MARINE . TIDES/COASTAL FLOODING . EQUIPMENT .


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44032 - Buoy E0104 - Central Maine Shelf 15 mi114 min SSW 16 G 21 42°F 40°F6 ft1011.6 hPa
44033 - Buoy F0103 - West Penobscot Bay 24 mi114 min SW 12 G 16 41°F 3 ft1012 hPa
44007 - PORTLAND 12 NM Southeast of Portland,ME 47 mi68 min SW 7.8 G 9.7 42°F 41°F5 ft1012.9 hPa (-1.0)41°F
CASM1 - 8418150 - Portland, ME 48 mi58 min 43°F 42°F

Wind History for Bar Harbor, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wiscasset Airport, ME15 mi65 minN 010.00 miOvercast43°F37°F82%1013.6 hPa
Rockland, Knox County Regional Airport, ME19 mi62 minSW 710.00 miOvercast42°F39°F89%1013.1 hPa

Link to 5 minute data for KIWI

Wind History from IWI (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmCalmS4SW3SE6SE66S8S7S8S5S433S3CalmCalm
1 day agoNE84NE735456--54656S5S76S5S4CalmCalmCalmCalmCalm
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Tide / Current Tables for Muscongus Harbor, Muscongus Sound, Maine
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Muscongus Harbor
Click for Map
Mon -- 03:55 AM EDT     -0.40 feet Low Tide
Mon -- 05:46 AM EDT     Moonset
Mon -- 06:09 AM EDT     Sunrise
Mon -- 10:04 AM EDT     10.60 feet High Tide
Mon -- 04:26 PM EDT     -1.00 feet Low Tide
Mon -- 05:27 PM EDT     Moonrise
Mon -- 07:11 PM EDT     Sunset
Mon -- 10:34 PM EDT     10.49 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.94.41.90.1-0.40.42.45.17.99.810.610.18.35.72.80.4-0.9-0.80.73.36.38.810.310.4

Tide / Current Tables for Sheepscot River (off Barter Island), Maine Current
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Sheepscot River (off Barter Island)
Click for Map
Mon -- 01:52 AM EDT     -1.24 knots Max Ebb
Mon -- 05:22 AM EDT     0.00 knots Slack
Mon -- 05:47 AM EDT     Moonset
Mon -- 06:10 AM EDT     Sunrise
Mon -- 07:28 AM EDT     1.02 knots Max Flood
Mon -- 11:15 AM EDT     -0.00 knots Slack
Mon -- 02:16 PM EDT     -1.39 knots Max Ebb
Mon -- 05:28 PM EDT     Moonrise
Mon -- 05:49 PM EDT     0.00 knots Slack
Mon -- 07:12 PM EDT     Sunset
Mon -- 07:57 PM EDT     1.10 knots Max Flood
Mon -- 11:49 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.6-1.1-1.2-1.1-0.8-0.30.5110.70.40.1-0.5-1.1-1.4-1.3-1.1-0.60.10.91.10.90.70.4

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 (0,6,7,8)
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Ground Weather Radar Station Portland, ME
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Disclaimer:
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.