Thursday, July9, 2020
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Marine Weather and Tides
Waldoboro, 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 5:05AMSunset 8:25PM Thursday July 9, 2020 4:28 AM EDT (08:28 UTC) Moonrise 11:23PMMoonset 9:29AM Illumination 85% Phase: Waning Gibbous; Moon at 19 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- 254 Am Edt Thu Jul 9 2020
Today..N winds around 5 kt, becoming se this afternoon. Seas 2 to 4 ft. Areas of fog this morning, then patchy fog this afternoon. Vsby variable to less than one quarter nm, increasing to 1 to 3 nm this afternoon.
Tonight..S winds around 5 kt. Seas around 2 ft. Areas of fog after midnight with vsby 1 to 3 nm.
Fri..SE winds around 5 kt. Seas around 2 ft. Areas of fog in the morning with vsby 1 to 3 nm.
Fri night..SE winds 5 to 10 kt. Seas 2 to 4 ft. Scattered showers in the evening, then numerous showers after midnight.
Sat..SE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Scattered showers.
Sat night..S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft. Scattered showers. Vsby 1 to 3 nm.
Sun..SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Scattered showers.
Sun night..SW winds 5 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft.
Mon..SW winds 5 to 10 kt. Seas 3 to 5 ft.
Mon night..SW winds 5 to 10 kt. Seas 3 to 5 ft.
ANZ100 254 Am Edt Thu Jul 9 2020
Synopsis for stonington me to merrimack river ma out to 25 nm.. Areas of dense fog are expected for portions of the waters for much of the morning. Additional shower and Thunderstorm activity is possible over the waters this and Friday afternoons. A coastal system will approach the region this weekend and bring a chance for seas above 5 ft for the outer waters and more showers and Thunderstorms. &&


7 Day Forecast for Marine Location Near Waldoboro, ME
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location: 43.87, -69.28     debug


Area Discussion for - Gray/Portland, ME
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FXUS61 KGYX 090746 AFDGYX

Area Forecast Discussion National Weather Service Gray ME 346 AM EDT Thu Jul 9 2020

SYNOPSIS. Hot and humid conditions are forecast for today and Friday, with heat index values exceeding 95 degrees across portions of southern New Hampshire today. Widespread moderate rainfall is expected Friday night and through the weekend as a remnant tropical system nears.

NEAR TERM /UNTIL 9 AM THIS MORNING/. **Dense Fog through this morning for much of the area** **Dangerous heat and humidity today and Friday**

Much of the coastal plain along with the foothills and mountains are seeing quarter mile or less visibility. A dense fog advisory remains in effect for much of the area through 9 AM when fog will dissipate with mixing. Dense fog and low stratus will continue for Penobscot Bay and the adjacent outer waters until late morning.

Subtropical ridging builds in from the Atlantic ocean today. This morning we start out in the 60s and even lower 70s and will be quite toasty even early on with strong July sunshine under clear skies. An area of 925mb heights around 23-25C will move over much of NH and portions of ME. Highs top out in the mid and upper 80s for much of ME this afternoon, with lower 90s over southern NH. At the same time, weak southerly flow around the western side of the high will bring higher moisture into the area. PWATs will reach 1.60" for southern NH, which is higher than the 90% moving average for this date. The combination of the heat and humidity will yield dangerous heat index values. A heat advisory remains in place from noon to 7 pm tonight.

SHORT TERM /9 AM THIS MORNING THROUGH 6 PM FRIDAY/. Expect another round of dense fog tonight, especially where it rains today. Fog and stratus will once again move off the waters and inland and radiation fog it likely for the valleys. Temperatures will be slightly cooler in the lower to upper 60s.

Friday will be another hot day with highs similar to today for most of NH. A heat advisory is not out of the question but have held off with today's advisory to contend with. Much of the coastal plain of ME should be cooler Friday with additional cloud cover in moderate onshore flow.

By Friday afternoon a low with tropical origins will be centered over NJ and moving north, with the center over southern NY state by late at night. There is a likely chance for thunderstorms with heavy rain possible closer to the system. However most of the rest of the area will just see a chance of showers. The heaviest QPF will develop late Friday night into Saturday.

LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/. Overview: The long term portion of the forecast begins with an area of low pressure approaching New England Friday night. It is expected to become a tropical or subtropical cyclone later today, but the impacts to our region will be the same regardless of its development. The system will bring a widespread rainfall to our region Friday night into Saturday; its tropical moisture source and forecast track suggest that flash flooding is a potential threat for portions of our region. Beyond Saturday, the forecast remains unsettled with daily chances for showers and thunderstorms and continued warm and humid conditions.

Impacts: Flash flooding remains a possibility Friday night into Saturday, particularly over the southern slopes of the Whites and southeastern NH.

Forecast Details: The big story in the long term continues to be the low pressure system expected to cross through New England on Saturday. The NHC currently gives this system an 80% chance of development and is expecting it to become a tropical or subtropical cyclone within the next 24 hours. 00Z model guidance now suggests an inland track right through western New England, though the latest deterministic ECMWF forecast tracks the system through the Gulf of Maine. The 00Z intensity guidance generally keeps the system below tropical storm strength. Even if it becomes a weak tropical depression or subtropical cyclone, the impacts to our region will be the same, in the form of a widespread rainfall and perhaps some gusty winds.

The global deterministic models are in good agreement that precipitation will begin to move into southern portions of our region between 00Z and 12Z Saturday and continue through the day. It will have a tropical source of moisture and, combined with efficient warm rainfall processes, there will be some potential for flash flooding Friday night into Saturday, somewhat dependent on the system's track. An inland track would keep the heaviest rainfall to our west while a track through the Gulf of Maine would allow for higher amounts in western ME and along the southern slopes of the Whites. Current QPF amounts are probably too high overall, but there will be some locations that receive 1-2 inches of rainfall from this system and the most likely locations at this time are the southern slopes of the Whites and southeastern NH. Will continue to monitor trends in QPF and track as we approach the weekend.

Showers continue into Saturday night as the low pressure system moves off to the NNE. Conditions remain unsettled through the rest of the long term period on the back side of that low which is then followed by an upper level trough moving into New England on Tuesday. The result is chances for diurnally driven showers and thunderstorms Sunday through Wednesday.

AVIATION /07Z THURSDAY THROUGH MONDAY/. Short Term . LIFR TO IFR conditions this morning will lift to VFR for all TAF sites but KRKD, which will take more of the morning to improve. VFR conditions will prevail today. There will be isolated thunderstorms this afternoon, but coverage will be minimal and did not have the confidence to put it in any TAFs. Tonight another round of fog /some of it dense/ will develop into the early morning hours Friday. Expect a possibility of MVFR ceilings in TSRA Friday, especially closer to the coasts. Lower flight rules are likely over southern NH/SW ME terminals in heavy rain associated with tropical moisture.

Long Term . Precipitation may be ongoing at MHT/PSM by 00Z Friday evening as a low pressure system approaches New England. Showers will gradually spread northward Friday night into Saturday morning with all terminals expected to see SHRA through 00Z Saturday evening with a slight chance for TSRA at all terminals as well. Conditions begin to improve from south to north Saturday evening into Sunday morning. Chances for SHRA and TSRA Sunday and Monday afternoon and evening, particularly at HIE/LEB/CON with lesser chances at the remaining terminals.

MARINE. Short Term . Areas of fog this morning will lift around 8-9 am, except for Penobscot Bay and its outer waters, which will take a little longer to diminish. Showers and isolated thunderstorms are possible over today. More widespread and heavier thunderstorms are likely for the waters Friday night as a tropical system nears.

Long Term . A tropical/coastal system may cross the waters on Saturday, but regardless of its track, seas are expected to build to 5-6 ft over the outer waters with winds gusting to 20 kt. Seas will remain elevated on the outer waters into Monday, but otherwise, no concerns for the waters with no large storm systems expected to affect the region.

HYDROLOGY. A chance for moderate to heavy rainfall comes Friday night into Saturday as a tropical/coastal low impacts the region. While an exact threat area remains hard to pin down due to continued uncertainty in the system's ultimate track, deep warm cloud depths and abundant moisture will result in an increased risk of flash flooding for at least some areas over the Friday night/ Saturday time frame. Will continue to watch trends.

GYX WATCHES/WARNINGS/ADVISORIES. ME . Dense Fog Advisory until 9 AM EDT this morning for MEZ007>009- 012>014-020>022-025>028-033. NH . Dense Fog Advisory until 9 AM EDT this morning for NHZ001>007. Heat Advisory from noon today to 7 PM EDT this evening for NHZ008-012-013-015. MARINE . None.



NEAR TERM . Hanes SHORT TERM . Hanes LONG TERM . Watson


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44032 - Buoy E0104 - Central Maine Shelf 11 mi85 min WSW 5.8 G 7.8 60°F 58°F3 ft1012.3 hPa
44033 - Buoy F0103 - West Penobscot Bay 20 mi85 min W 5.8 G 5.8 58°F 2 ft1012.5 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, ME17 mi33 minN 00.50 miFog62°F61°F96%1014.5 hPa
Wiscasset Airport, ME23 mi36 minN 00.25 miFog63°F62°F97%1014.7 hPa

Link to 5 minute data for KRKD

Wind History from RKD (wind in knots)
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Last 24hrS35SW5S7S6SW8S8SW5S7SW5S5S4S5E4N10
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1 day agoCalmCalmCalmCalmSE6S8S6S9S12S11S9S7
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2 days agoCalmCalmCalmCalm5NE7
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Tide / Current Tables for Burnt Island, Georges Islands, Maine
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Burnt Island
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Thu -- 02:20 AM EDT     9.79 feet High Tide
Thu -- 05:04 AM EDT     Sunrise
Thu -- 08:46 AM EDT     0.03 feet Low Tide
Thu -- 09:29 AM EDT     Moonset
Thu -- 03:01 PM EDT     8.80 feet High Tide
Thu -- 08:20 PM EDT     Sunset
Thu -- 08:57 PM EDT     1.13 feet Low Tide
Thu -- 11:22 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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7.18.99.79.68.46.33.81.70.30.10.82.64.86.98.38.88.36.94.92.91.61.11.73.1

Tide / Current Tables for Sheepscot River (off Barter Island), Maine Current
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Sheepscot River (off Barter Island)
Click for Map
Thu -- 03:30 AM EDT     -0.00 knots Slack
Thu -- 05:05 AM EDT     Sunrise
Thu -- 06:34 AM EDT     -1.21 knots Max Ebb
Thu -- 09:31 AM EDT     Moonset
Thu -- 10:15 AM EDT     0.00 knots Slack
Thu -- 12:06 PM EDT     0.75 knots Max Flood
Thu -- 04:17 PM EDT     -0.00 knots Slack
Thu -- 06:57 PM EDT     -0.93 knots Max Ebb
Thu -- 08:22 PM EDT     Sunset
Thu -- 10:26 PM EDT     0.00 knots Slack
Thu -- 11:24 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.60.40.2-0.3-0.8-1.2-1.2-1.1-0.8-0.20.50.70.60.50.40.1-0.4-0.8-0.9-0.9-0.7-0.30.3

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.
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Wind Forecast for Gray/Portland, ME (4,6,7,8)
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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.