Tuesday, May26, 2020
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Marine Weather and Tides
Rockland, 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 4:59AMSunset 8:12PM Tuesday May 26, 2020 3:55 PM EDT (19:55 UTC) Moonrise 8:05AMMoonset 11:57PM Illumination 22% Phase: Waxing Crescent; Moon at 5 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- 333 Pm Edt Tue May 26 2020
Tonight..SW winds 5 to 10 kt. Seas 1 foot or less. Areas of fog. Vsby 1 to 3 nm.
Wed..S winds 5 to 10 kt. Seas 1 to 2 ft. Areas of fog in the morning with vsby 1 to 3 nm.
Wed night..SW winds 5 to 10 kt. Seas 2 to 3 ft. Patchy fog. Vsby 1 to 3 nm after midnight.
Thu..SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Patchy fog in the morning with vsby 1 to 3 nm.
Thu night..SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers after midnight.
Fri..SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers.
Fri night..SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. A chance of showers.
Sat..SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. A chance of showers.
Sat night..W winds 5 to 10 kt. Seas around 2 ft. A chance of showers.
Sun..NW winds around 10 kt. Seas 1 to 2 ft.
Sun night..NW winds around 10 kt with gusts up to 20 kt. Seas 1 foot or less.
ANZ100 333 Pm Edt Tue May 26 2020
Synopsis for stonington me to merrimack river ma out to 25 nm.. High pressure over the atlantic keeps south to southwest winds over the gulf of maine with areas of fog as dew points increase. A cold front or two gradually crosses the waters late Friday through Saturday with Thunderstorms possible. &&


7 Day Forecast for Marine Location Near Rockland city, ME
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location: 44.1, -69.09     debug


Area Discussion for - Gray/Portland, ME
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FXUS61 KGYX 261245 AAB AFDGYX

Area Forecast Discussion . UPDATED National Weather Service Gray ME 845 AM EDT Tue May 26 2020

SYNOPSIS. Clouds and drizzle will continue into this morning with clearing by late morning. Temperatures will be on the rise through mid week as high pressure builds over the area. There will be a slight chance for mountain thunderstorms Wednesday afternoon. More widespread showers and thunderstorms are possible Friday into saturday as a slow moving cold front crosses the area. Drier and cooler air arrives for the second half of the weekend into early next week.

NEAR TERM /UNTIL 6 PM THIS EVENING/. Stratus and fog are slowly being eroded across the area and should continue to do so this morning. Elsewhere some patchy cirrus is drifting in around the northern extent of high pressure. Beyond this, most sites are sunny this morning. Temperatures should warm into the 70s and 80s in the next few hours.

615AM UPDATE . Gave some thought to canceling the Dense Fog Advisory considering most observations are significantly above the 1/4SM criteria. However, here at the office we have been stuck in less than 1/4SM visibility for quite some time, and judging by reports of others in the area this is more common than the automated observations are showing. Thus will allow the Dense Fog Advisory to continue until expiration while acknowledging that the fog may be more patchy than widespread. Otherwise have updated the forecast to adjust hourly temperature trends based on latest observations. No other significant changes in forecast thinking.

ORIGINAL DISCUSSION . Onshore flow continues for Maine and far eastern New Hampshire. The rich moisture coming in on this flow over the cold waters has led to low clouds and fog. Expect the threat of dense fog to last for a few hours after sunrise so will continue the Dense Fog Advisory with the expectation that it can expire at 8AM.

An upper level ridge bubbles up into the Northeast US today with very warm air spilling in around the top of this ridge. This will bring some very warm temperatures to the northern part of the area today where highs in the mid 80s are expected. Further south in southern New Hampshire low 80s are expected . while the coast of Maine will take a while to shake off the clouds, keeping temperatures even cooler.

SHORT TERM /6 PM THIS EVENING THROUGH 6 PM WEDNESDAY/. Although clouds are likely to break up at least somewhat during the day today, we expect them to roll back in again tonight. Low level wind flow becomes slightly more southwesterly so the area most likely to be affected by clouds and possibly more fog will be a bit further east as well. Temperatures fall off into the 50s for most, but parts of New Hampshire may stay in the 60s, buoyed by the increased moisture.

Wednesday will be even warmer than today with perhaps the peak of the warm air rotating around the top of the upper ridge. This will send temperatures into the low 90s across northern parts of the area while southern and coastal areas should top off in the 80s. With winds even more southwesterly, the cooling influence of the Gulf of Maine will again be shifted further east, protecting only the immediate Midcoast from the 80 degree warmth.

In addition to the heat, dewpoints in the mid 60s will even add a bit of a heat index making it feel slightly hotter. The combination of the heat and humidity will lead to instability in the afternoon, with a chance of showers and thunderstorms mainly in northern areas. The upper ridge remains close by, so precipitation chances are rather low. However, a subtle wave may be rotating around the northern edge of the ridge which could give just enough lift to produce a few storms over Canada and drift into northern parts of our area Wednesday afternoon.

LONG TERM /WEDNESDAY NIGHT THROUGH MONDAY/. Above normal heights and ridge axis will start to shift east Thursday as weak disturbances aloft move through the northern periphery of the ridge. A trough will swing through southeastern Canada late Thursday night through Saturday pushing a slow moving cold front through the region bringing showers and thunderstorms Friday. The front will be slow to exit the region with precipitation chances continuing into Saturday. High pressure will build in from the NW the second half of the weekend for cooler and drier weather into early next week.

Thursday will be very warm, although not quite as warm as Wednesday with more cloud cover and temperatures in the 80s. Moisture will be on the increase Friday ahead of the cold front with PWATS around 200 percent of normal and dewpoints climbing into the mid 60s. Highs will be in the 80s again and with the increase of moisture it will start to feel muggy.

Models continue to show decent instability ahead of the front with CAPE around 1000 J/kg, although guidance shows precipitation moving through in waves as early as Friday morning lasting into Saturday. There will be decent shear with the front with shear vectors more aligned line parallel lending towards less favorable conditions for well organized storms. Overall expect thunder with precipitation Friday, especially in the afternoon and will continue to monitor if more organized convection becomes favorable.

AVIATION /13Z TUESDAY THROUGH SATURDAY/. Short Term . LIFR conditions along the coast and much of the coastal plain of Maine this morning should disperse somewhat as the day goes on. There could be some MVFR ceilings lasting much of the day especially toward the Midcoast. Another surge of clouds and possible fog is expected this evening, this time more likely to affect eastern areas.

Long Term . Mainly VFR Thursday with increasing moisture and clouds bringing possible restrictions Thursday night. More widespread restrictions are expected Friday into Saturday morning as slow moving cold front brings SHRA with some TSRA.

MARINE. Short Term . South to southwest flow around the periphery of the Atlantic high will gradually increase in strength through Wednesday. This is not a favorable wind direction for mixing, especially considering the warm/moist air mass being advected over the still frigid waters, so for the most part we currently expect winds to remain below advisory levels.

Long Term . SW winds will gust up to 20 to 25 kts Wed-Fri ahead of an approaching cold front with seas generally 5 ft or less. The cold front will bring showers and some thunderstorms Friday into Saturday.

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



NEAR TERM . Hanes SHORT TERM . Kimble LONG TERM . Schroeter


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44033 - Buoy F0103 - West Penobscot Bay 6 mi111 min S 5.8 G 7.8 50°F 2 ft1021.6 hPa
44032 - Buoy E0104 - Central Maine Shelf 30 mi111 min S 5.8 G 5.8 52°F 51°F3 ft1021.6 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, ME2 mi59 minS 810.00 miFair61°F55°F81%1022.6 hPa

Link to 5 minute data for KRKD

Wind History from RKD (wind in knots)
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Last 24hrS7SW6S5S4SE3SE3CalmS5S3S3S3W4S4SW4SW3CalmS4SE4S7S6S7S10S8S8
1 day agoSE9SE7SE7S7SE6SE4S6CalmCalmCalmCalmCalmCalmCalmCalmCalmSE4SW4SE7E5SE5SE7SE8SE8
2 days agoE10E13E11E8SE5CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmE4E6E76E9E6E8SE8SE9

Tide / Current Tables for Rockland, Penobscot River, Maine
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Rockland
Click for Map
Tue -- 01:37 AM EDT     10.48 feet High Tide
Tue -- 04:59 AM EDT     Sunrise
Tue -- 08:05 AM EDT     Moonrise
Tue -- 08:12 AM EDT     0.01 feet Low Tide
Tue -- 02:21 PM EDT     9.21 feet High Tide
Tue -- 08:07 PM EDT     Sunset
Tue -- 08:17 PM EDT     1.47 feet Low Tide
Tue -- 11:56 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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8.810.210.49.67.95.42.70.800.31.63.76.28.29.298.16.44.12.31.51.72.94.8

Tide / Current Tables for Camden, Penobscot River, Maine
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Camden
Click for Map
Tue -- 01:39 AM EDT     10.47 feet High Tide
Tue -- 04:59 AM EDT     Sunrise
Tue -- 08:04 AM EDT     Moonrise
Tue -- 08:09 AM EDT     0.01 feet Low Tide
Tue -- 02:22 PM EDT     9.18 feet High Tide
Tue -- 08:08 PM EDT     Sunset
Tue -- 08:15 PM EDT     1.31 feet Low Tide
Tue -- 11:57 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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8.910.210.49.57.75.32.70.800.41.846.38.29.1986.24.12.21.41.62.95

Weather Map
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wmap_A
GEOS Local Image of Mid-Atlantic    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 (15,3,4,5)
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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.