Thursday, February27, 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 6:18AMSunset 5:25PM Thursday February 27, 2020 8:34 AM EST (13:34 UTC) Moonrise 9:21AMMoonset 10:19PM Illumination 16% Phase: Waxing Crescent; Moon at 4 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- 302 Am Est Thu Feb 27 2020
.storm warning in effect through this afternoon...
Today..E winds 25 to 35 kt, becoming se 20 to 30 kt this afternoon. Gusts up to 50 kt. Seas 4 to 7 ft, building to 6 to 9 ft this afternoon. Rain. Vsby 1 to 3 nm.
Tonight..SW winds 15 to 25 kt, becoming W 10 to 20 kt after midnight. Gusts up to 35 kt. Seas 4 to 7 ft, subsiding to 2 to 4 ft after midnight.
Fri..W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft.
Fri night..W winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft, subsiding to 2 to 3 ft after midnight.
Sat..W winds 5 to 10 kt. Seas 2 to 3 ft, subsiding to 1 to 2 ft in the afternoon.
Sat night..NW winds around 10 kt. Seas 1 foot or less.
Sun..NW winds around 10 kt with gusts up to 20 kt. Seas 1 foot or less.
Sun night..NW winds 5 to 10 kt with gusts up to 20 kt. Seas 1 foot or less.
Mon..SE winds 5 to 10 kt. Seas around 2 ft.
Mon night..S winds 5 to 10 kt. Seas around 2 ft. A chance of snow. Vsby 1 to 3 nm.
ANZ100 302 Am Est Thu Feb 27 2020
Synopsis for stonington me to merrimack river ma out to 25 nm.. Winds and seas will steadily increase this morning as a developing coastal low crosses the region. This low will be followed by strong westerly winds tonight and Friday as much colder air moves into the region. Winds and waves will gradually subside through the weekend. &&


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 271215 AFDGYX

Area Forecast Discussion National Weather Service Gray ME 715 AM EST Thu Feb 27 2020

SYNOPSIS. A sprawling area of low pressure extending from the lower Great Lakes to the mid Atlantic region will intensify at it moves into New England today. This storm system will bring rain along the coast . heavy wet snow in the mountains . and a mix of rain and snow in between. Much colder air will arrive behind this system with mountain snow showers continuing into the weekend. Moderating temperatures are expected by early next week, with a stormy midweek.

NEAR TERM /UNTIL 6 PM THIS EVENING/.

715 AM . For this ESTF update . I adjusted snow amounts down and tried to better delineate the sharp cutoff in accumulating snow based on latest short term guidance,88D dual-pol and current surface metars.

Prev disc . 600 AM . Quick ESTF update to drop the winter weather advisory for southern Grafton and southern Carroll counties in New Hampshire as much of the accumulating snow there will be limited to the high terrain.

Prev Disc . At 07z . a 996 millibar low was over central New York with an occluded front extending southward through the DELMARVA. Over the past few hours . greatest pressure falls have migrated to the coast with three hour values approaching 7 millibars vicinity of the New York metro. The associated shortwave impulse will go negative tilt over the next twelve hours as it races northeastward and give rise to a triple point low over the coastal plain. Precipitation will expand rapidly next few hours in advance of a strengthening low level jet and become heavy at times towards morning. There is a subtle cold air damming signature to the lee of our higher terrain and this should lend itself to a sharp cutoff in where accumulating wet snow will ultimately occur. Cooling of the column with precipitation onset should transition any rain to snow rather quickly across much of the mountains and foothills. Snowfall rates where we stay snow should exceed one inch per hour later this morning. Along the coastal plain . we'll see a period of heavy rain along with the potential for poor drainage and urban flooding. Along with the heavy precipitation will be a period of strong winds near the coast. Winds and precipitation will quickly taper from southwest to northeast later today with passage of the occluded front and the triple point low. Southern New Hampshire and extreme southwest Maine may even see some sunny breaks by late afternoon. Highs will range from the 30s in the mountains to the 40s to near 50 over southern New Hampshire and the Maine coast.

SHORT TERM /6 PM THIS EVENING THROUGH 6 PM FRIDAY/. With the storm system remaining parked to our north tonight and Friday we'll see lingering clouds . with a few snow showers across the higher terrain. Upslope flow and a plume of moisture extending downwind of Lake Ontario could produce some heavier snow showers across the upper Connecticut Valley and white mountains late tonight and Friday. Lows tonight will be in the upper teens to mid 20s. Highs Friday will range from the 20s across the mountains to lower and mid 30s elsewhere.

LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/. Bowling ball upper low over western Quebec begins to take on a positive tilt early Saturday as a stronger area of vorticity rounds its base and moves northeast. The low will be hard to budge initially, but as Bermuda high pressure gradually weakens its hold over the north Atlantic Ocean, it will begin to move east and out of the eastern CONUS.

This will open the door (briefly) to ridging Sunday. Low amplitude wave train will then move through the Northeast Monday and Tuesday, bringing slight chance to chance PoPs for most of the area. Currently this looks like snow initially, changing over to rain for portions of southern and central NH and the coastal plain of ME Tuesday before tapering off Tuesday night. Also Tuesday, some models deepen a mesolow moving across New England. This occurs along a baroclinic zone stretching from Texas into southeastern Canada. If this occurs, we could see plowable snowfall amounts in the mountains and moderate to heavy rain elsewhere.

Temperatures during this time will be well above normal as much of the area will ultimately be in a broad warm sector. Readings from north to south will vary quite a bit Monday as a warm front moves into southern NH and southwest ME. Expecting readings in the lower 30s for the mountains to the lower 40s southwest. Tuesday will be even warmer with highs in the lower 40s for the mountains and readings in the lower 50s for the Manchester/Nashua corridor.

At the same time, moisture from the Gulf of Mexico will have made its way to New England in the warm sector. The resulting high theta-e air and strong dynamics could support some significant convection.

The next part of the forecast has widely varying solutions from the long term guidance. There is a general consensus that deep troughing will have established itself over the central CONUS by this time. A short wave kicker rounding the trough will approach northern New England next Wednesday/Thursday. A the same time, strong surface low pressure will shoot out of the Ark-La-Tex region and towards the Great Lakes. This storm is progged to pass to our west, again opening us up to Gulf of Mexico moisture. Needless to say if this pans out and we received ample rainfall Tuesday/Wednesday, we could have some flooding issues.

AVIATION /12Z THURSDAY THROUGH MONDAY/. Short Term /Through Friday/ . Should see IFR or lower at all terminals but KHIE later tonight into Thu morning, with improvement to VFR in the afternoon. E winds could gust to around 40 kt at times Thu morning at coastal terminals and KHIE, with all terminals seeing SW winds gusting to 25 kt in the afternoon. Lingering MVFR with lcl IFR in mtn -SHSN tonight and Fri.

Long Term . Possibly some additional -SHSN for KHIE on Saturday morning. Elsewhere skies will have improved to VFR. Westerly winds will be gusty through Friday, but not nearly as windy as it will be today. Winds become lighter on Saturday. Maybe some LLWS for RKD early Friday night/Saturday morning as winds diminish at the surface.

MARINE. Short Term /Through Friday/ . Deepening low pressure tracking just inland from the coast will produce winds gusts to around 50 kt for a few hours this morning Behind the low. gales are likely by tonight open waters with strong SCAs bays.

Long Term . Gales will be needed tonight into late afternoon Friday, followed by SCAs for the open waters. The bays look like strong SCA/borderline gale conditions Friday, followed by SCAs through Saturday morning. After that conditions subside for all waters.

TIDES/COASTAL FLOODING. Strong onshore flow and building seas this morning should result in a tidal surge of around 2 ft. While we'll remain below flood stage with the noon time high tide today . it's likely that large seas will produce some splash-over along with minor beach erosion.

GYX WATCHES/WARNINGS/ADVISORIES. ME . Winter Storm Warning until 7 PM EST this evening for MEZ007>009-012>014. Wind Advisory until 2 PM EST this afternoon for MEZ023>028. Winter Weather Advisory until 5 PM EST this afternoon for MEZ020>022. NH . Winter Storm Warning until 7 PM EST this evening for NHZ001- 002. Winter Weather Advisory until 7 PM EST this evening for NHZ003- 004. Wind Advisory until 2 PM EST this afternoon for NHZ014. MARINE . Gale Warning until 5 PM EST this afternoon for ANZ153. Storm Warning until 5 PM EST this afternoon for ANZ150>152-154.

NEAR TERM . Schwibs SHORT TERM . Schwibs LONG TERM . Hanes


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44033 - Buoy F0103 - West Penobscot Bay 6 mi91 min E 27 G 35 38°F 7 ft1001.3 hPa
44032 - Buoy E0104 - Central Maine Shelf 30 mi91 min E 31 G 39 40°F 42°F10 ft999.1 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 mi39 minE 24 G 333.00 miRain Fog/Mist and Windy38°F36°F93%1001.4 hPa

Link to 5 minute data for KRKD

Wind History from RKD (wind in knots)
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1 day agoN5E5NE8E6E7E4E6CalmCalmCalmCalmCalmCalmW3CalmCalmCalmCalmCalmCalmCalmCalmCalmNE7
2 days agoW3S8S6S6S9S9S8SW8S4S3CalmCalmCalmCalmCalmW3CalmCalmCalm5NE3CalmN5Calm

Tide / Current Tables for Rockland, Penobscot River, Maine
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Rockland
Click for Map
Thu -- 01:06 AM EST     9.57 feet High Tide
Thu -- 06:17 AM EST     Sunrise
Thu -- 07:09 AM EST     1.00 feet Low Tide
Thu -- 08:20 AM EST     Moonrise
Thu -- 01:16 PM EST     9.74 feet High Tide
Thu -- 05:21 PM EST     Sunset
Thu -- 07:30 PM EST     0.86 feet Low Tide
Thu -- 09:19 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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99.69.27.95.63.31.711.42.64.77.299.79.58.46.43.921123.86.1

Tide / Current Tables for Camden, Penobscot River, Maine
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Camden
Click for Map
Thu -- 12:59 AM EST     9.42 feet High Tide
Thu -- 06:17 AM EST     Sunrise
Thu -- 07:06 AM EST     0.58 feet Low Tide
Thu -- 08:20 AM EST     Moonrise
Thu -- 01:14 PM EST     9.52 feet High Tide
Thu -- 05:21 PM EST     Sunset
Thu -- 07:25 PM EST     0.60 feet Low Tide
Thu -- 09:18 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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8.99.48.97.45.22.91.30.612.44.66.98.79.59.2863.61.70.70.81.93.86.1

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.
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Wind Forecast for Gray/Portland, ME (8,2,3,4)
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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.