Wednesday, January22, 2020
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Marine Weather and Tides
Falmouth, 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 7:05AMSunset 4:39PM Wednesday January 22, 2020 6:00 PM EST (23:00 UTC) Moonrise 6:24AMMoonset 3:31PM Illumination 5% Phase: Waning Crescent; Moon at 27 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- 258 Pm Est Wed Jan 22 2020
Tonight..SW winds 5 to 15 kt with gusts up to 20 kt. Seas 1 foot or less.
Thu..W winds 5 to 10 kt, becoming sw in the afternoon. Seas 1 foot or less.
Thu night..N winds around 5 kt. Seas 1 to 2 ft.
Fri..NE winds 5 to 10 kt. Seas 1 to 2 ft.
Fri night..NE winds 5 to 10 kt. Seas 1 foot or less, then 1 to 2 ft after midnight.
Sat..NE winds 5 to 10 kt, becoming E 10 to 15 kt with gusts up to 25 kt in the afternoon. Seas 2 to 4 ft. A chance of rain or snow in the afternoon.
Sat night..E winds 10 to 20 kt, becoming 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 3 to 5 ft, building to 5 to 8 ft after midnight. Rain or snow.
Sun..E winds 10 to 20 kt with gusts up to 30 kt. Seas 5 to 8 ft. Rain.
Sun night..N winds 5 to 10 kt with gusts up to 20 kt. Seas 3 to 5 ft. Snow or rain showers likely.
Mon..N winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of snow showers.
Mon night..N winds 5 to 10 kt. Seas around 2 ft. A chance of snow showers.
ANZ100 258 Pm Est Wed Jan 22 2020
Synopsis for stonington me to merrimack river ma out to 25 nm.. A weak frontal boundary will cross the waters overnight tonight. High pressure will then persist through early Saturday. Low pressure will pass through the waters this weekend and early next week with building winds and seas likely. Gales are possible Saturday night and Sunday morning with this system. &&


7 Day Forecast for Marine Location Near Falmouth, ME
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location: 43.71, -70.23     debug


Area Discussion for - Gray/Portland, ME
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FXUS61 KGYX 221948 AFDGYX

Area Forecast Discussion National Weather Service Gray ME 248 PM EST Wed Jan 22 2020

SYNOPSIS. High pressure brings fair weather and a warming trend to the region through Thursday. A cold front will sink gradually south into the area late Thursday through Friday accompanied by a few clouds. A coastal storm may bring accumulating snow to much of the region over the weekend into early next week, but rain and mixed precipitation are also possible depending on system track.

NEAR TERM /THROUGH TONIGHT/. At 19z a 1035 millibar high was centered over the DELMARVA. With the exception of some patchy low and mid clouds . GOES imagery showed mainly clear skies across the area. Sunshine and moderating 850 millibar temperatures have allowed the mercury to rebound to near or slightly above normal for the date . with readings in the upper 20s and lower 30s For tonight. a few high clouds will spill over the top of the ridge otherwise a mainly clear and cold night with lows ranging from the single numbers to mid teens.

SHORT TERM /THURSDAY THROUGH THURSDAY NIGHT/. On Thursday . the high remains centered to our south. The ridge will allow for more sunshine on Thursday and mild temperatures as winds continue out of the southwest, both at the surface and aloft. With nearly full sunshine, temperatures will reach the lower 40s over southern areas. Mostly sunny skies . moderating 850 millibar temperatures . and light southwest flow will allow temperatures to warm into the mid 30s to lower 40s . or a good ten degrees above average for the date. Thursday night . an east-west oriented cold front will begin to sag slowly southward into the area as high pressure builds east into Quebec province. We'll see some clouds spread into northern and eastern sections overnight with the front. Just how fast the clouds arrive will determine when we put a lid on radiational cooling. I've gone below machine guidance in many areas especially south and west where the bulk of the night should be mostly clear.

LONG TERM /FRIDAY THROUGH WEDNESDAY/.

By Friday morning, a ridge of high pressure centered over central Quebec will extend eastward across the Canadian Maritimes, and will continue to bring fair conditions to New England through early Saturday. This ridge will be anomalously warm for this time of the year, with origins from the Pacific Ocean, rather than northern Canada. This means that temperatures will be above normal into the weekend, and that there will not be a major source of cold air nearby or in place as a storm system approaches for late Saturday through Monday.

The storm system is currently located over the Pacific northwest US. It is expected to emerge over the central Plains and strengthen until it becomes an occluded area of low pressure over the Ohio River valley by late Friday. The low will slowly move eastward and will likely cross through southern or central New England on Sunday.

There has been a notable shift in the GFS, ECMWF, Canadian, and their respective ensemble suites to a more northern and warmer track of the low pressure over the last few model runs. This shift in model output coincides with the actual system coming ashore across the Northwest US and entering the RAOB network. This means that the latest models runs have a better sampling of the system itself than the previous runs did, so it's difficult to say whether the shift of the models to a warmer solution is due to better sampling, or the beginning of a trend toward an even warmer solution.

Regardless, with the better sampling, recent model trends, and only marginally cold enough air across the region, there is sufficient reason to believe that this system will feature a considerable deal of mixing with rain, and a full blown changeover is quite possible across the coastal plain. The mountains stand the best chance of remaining all snow through the event.

The storm is expected to move quite slowly, with the low pressure center not expected to depart the Gulf of Maine until Monday afternoon. With a slow track nearby, precipitation will likely linger right through the day on Monday, but it will not be continuous from late Saturday through Monday. Precipitation is likely to be more showery and periodic across central and southern zones by Sunday afternoon, with the mountains standing the best chance of experiencing more continuous precipitation with bands of snow rotating in on the backside of the low into Monday.

Tides will also have to be watched closely during the Sunday midday high tides. The astronomical high tide is 10ft in Portland on Sunday. The slow progression and timing of the storm could bring enough storm surge and large waves to cause some minor coastal flooding concerns on Sunday.

After the system, high pressure will build across New England through midweek next week, with temperatures returning to near normal.

AVIATION /18Z WEDNESDAY THROUGH MONDAY/. Short Term /Through Thursday Night/ . VFR.

Long Term . VFR conditions will continue into early Saturday as high pressure persists across the region. A storm system is expected to bring snow, likely mixing with rain across the coastal plain, which will reduce visibilities and ceilings at times late Saturday through Monday. Gusty winds will also accompany the system, with east winds progressively shifting to the northwest from Sunday through Monday.

MARINE. Short Term /Through Thursday Night/ . Winds and seas will remain below SCA thresholds.

Long Term . High pressure will persist through early Saturday. An area of low pressure will slowly cross the waters Saturday Night through Monday, likely bringing a period of easterly gales Sunday morning. The system will then slowly exit the Gulf of Maine on Monday morning, with freshening northerly winds on the backside. High pressure will build in behind the system across the waters early next week.

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

NEAR TERM . Schwibs SHORT TERM . Schwibs LONG TERM . Clair


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CASM1 - 8418150 - Portland, ME 4 mi48 min 30°F 37°F
44007 - PORTLAND 12 NM Southeast of Portland,ME 14 mi70 min SSW 7.8 G 9.7 33°F 38°F1 ft1028.5 hPa (+0.0)19°F
WEXM1 - Wells Reserve, ME 31 mi60 min SW 1.9 31°F 19°F
WELM1 - 8419317 - Wells, ME 32 mi42 min SSW 2.9 G 5.1 31°F 37°F1028.8 hPa
44030 - Buoy B0102 - Western Maine Shelf 38 mi116 min SSW 12 G 14 1 ft1029 hPa
44032 - Buoy E0104 - Central Maine Shelf 46 mi116 min WSW 7.8 G 12 33°F 41°F2 ft1027.3 hPa

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Link to 5 minute data for KPWM

Wind History from PWM (wind in knots)
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Last 24hrSW4SW3CalmNW4CalmW4NW3W3W3W3W5W6CalmW3CalmW4W4CalmNE3CalmE4SE7S3Calm
1 day agoCalmCalmW3W3SW5W4CalmW3SW3CalmW4NW3W3CalmW4CalmNW3W43SW5CalmS6S3S3
2 days agoNW7N11NW19
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Tide / Current Tables for Presumpscot River Bridge, Maine
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Presumpscot River Bridge
Click for Map
Wed -- 02:48 AM EST     0.56 feet Low Tide
Wed -- 05:24 AM EST     Moonrise
Wed -- 07:07 AM EST     Sunrise
Wed -- 09:03 AM EST     10.27 feet High Tide
Wed -- 02:31 PM EST     Moonset
Wed -- 03:34 PM EST     -0.57 feet Low Tide
Wed -- 04:37 PM EST     Sunset
Wed -- 09:45 PM EST     8.92 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.22.20.90.61.43.35.88.19.610.39.88.15.630.9-0.4-0.50.72.95.37.38.68.98

Tide / Current Tables for Doyle Point, Maine
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Doyle Point
Click for Map
Wed -- 02:41 AM EST     0.47 feet Low Tide
Wed -- 05:24 AM EST     Moonrise
Wed -- 07:07 AM EST     Sunrise
Wed -- 09:00 AM EST     10.17 feet High Tide
Wed -- 02:30 PM EST     Moonset
Wed -- 03:27 PM EST     -0.48 feet Low Tide
Wed -- 04:37 PM EST     Sunset
Wed -- 09:42 PM EST     8.83 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.920.70.51.53.55.98.19.610.29.67.95.42.80.8-0.3-0.313.15.47.48.68.87.9

Weather Map
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wmap_A
GEOS Local Image of    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 (18,4,5,8)
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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.