Sunday, January17, 2021
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Marine Weather and Tides
Biddeford, ME

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
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 7:08AMSunset 4:35PM Sunday January 17, 2021 5:01 AM EST (10:01 UTC) Moonrise 11:01AMMoonset 10:27PM 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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ANZ154 Coastal Waters From Cape Elizabeth, Me To Merrimack River, Ma Out 25 Nm- 301 Am Est Sun Jan 17 2021
.gale warning in effect through late tonight...
Today..W winds 20 to 30 kt with gusts up to 40 kt. Seas 7 to 10 ft.
Tonight..W winds 20 to 25 kt, becoming 15 to 25 kt after midnight. Gusts up to 35 kt. Seas 5 to 8 ft, subsiding to 4 to 6 ft after midnight.
Mon..W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft.
Mon night..NW winds 15 to 20 kt, becoming 10 to 20 kt after midnight. Seas 2 to 4 ft.
Tue..NW winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft in the morning, then 1 foot or less.
Tue night..W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft.
Wed..NW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 2 to 4 ft.
Wed night..NW winds 15 to 20 kt, becoming 10 to 20 kt after midnight. Seas 2 to 4 ft.
Thu..W winds 10 to 15 kt. Seas around 2 ft.
Thu night..W winds 10 to 15 kt. Seas around 2 ft. A chance of snow showers after midnight.
ANZ100 301 Am Est Sun Jan 17 2021
Synopsis for stonington me to merrimack river ma out to 25 nm.. Offshore gales will be the rule today and into tonight along with rough seas. Winds and seas gradually subside Monday and Tuesday but may increase again midweek as low pressure moves offshore.


7 Day Forecast for Marine Location Near Biddeford, ME
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location: 43.29, -70.17     debug


Area Discussion for - Gray/Portland, ME
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FXUS61 KGYX 170734 AFDGYX

Area Forecast Discussion National Weather Service Gray ME 234 AM EST Sun Jan 17 2021

SYNOPSIS. Low pressure will gradually exit through the Canadian Maritimes today, but upper level low pressure will continue to provide for accumulating snow showers to the mountains. A weak system crosses the region on Monday with another weak system passing through on Tuesday night and Wednesday.

NEAR TERM /THROUGH TODAY/. Upper level low pressure will continue to pivot northeastward across our forecast area this morning. As of 07z radar returns have increased fairly markedly across central and northern zones with light rain at lower levels and snow at higher elevations. Mountain snows will continue through this morning, with prime west-facing slopes picking up another 3 to 6 inches of snow today. Will drop the expiring winter storm warning with this package update but hoist a winter weather advisory for the mountains through noon today. Lower elevations will see little in the way of accums, but notches and higher elevations will see periods of heavy snow this morning, with occasional 1/4 mile S+ expected. Mountain roads will be very slippery.

Otherwise, downwind of the mountains, some flurries and sprinkles are expected along with varying amounts of clouds today. Temperatures outside of the mountains should be well above normal today, with downsloping winds aiding temperatures to rise up to the mid 40s.

Winds will be gusty as well, with frequent gusts around 30 MPH likely.

SHORT TERM /TONIGHT THROUGH 6 PM MONDAY/. A weak short wave trough passes across the forecast area tonight into Monday. Therefore, clouds will be prevalent along with scattered snow showers in the mountains. Conditions should improve Monday afternoon with the passage of the short wave trough. Highs Monday will be well above normal once again with the absence of arctic air continuing.

LONG TERM /MONDAY NIGHT THROUGH SATURDAY/. Several fast moving shortwaves will race across the northern tier of the eastern CONUS primarily bringing periods of more clouds than sun. There will be low chances for snow showers with these passing disturbances but opportunities for accumulating will be limited through next week. Temperatures will oscillate either side of normal with each passing wave with Wednesday night looking to be the coldest as high pressure briefly crests over the area.

We will be between passing shortwaves Tuesday with partly cloudy skies and temperatures ranging from the teen north to low 30s south. The next short wave crosses Tuesday night into Wednesday for an increase in cloud cover and low chances for a snow shower. High pressure crosses the area Wednesday night allowing for more optimal radiational cooling leading to lows dropping below zero in the north and lows in the single digits to near 10 degrees south. The next set of short waves cross the area Thursday into Friday night with better chances for widespread snow shower activity although accumulations look to be limited to where snow showers are more persistent in the mountains.

AVIATION /07Z SUNDAY THROUGH THURSDAY/. Short Term . MVFR to IFR conditions will continue in the mountains today in snow showers. Downwind of the mountains, we expect VFR conditions with a few areas of MVFR cigs from time to time. Any fog will dissipate early this morning. Westerly wind gusts of 25 to 30 kts are expected today and will diminish tonight. Areas of MVFR cigs are expected late tonight and Monday morning as a weak disturbance moves through.

Long Term . Mainly VFR through next week. Fast moving disturbances may bring periods of MVFR in lower cigs and -SHSN Tuesday night into Wednesday and again Thursday into Friday.

MARINE. Short Term . An offshore gale returns this morning as low pressure gradually moves away from the forecast area. All marine zones except Casco bay continue with the gale warning through about midnight. Winds and seas will then diminish late tonight and Monday but remain at SCA thresholds.

Long Term . SCA conditions likely Monday night will diminish Tuesday. Another round of SCA conditions Wednesday as NW winds pick up behind a passing disturbance with SCA conditions subsiding by Thursday morning.

GYX WATCHES/WARNINGS/ADVISORIES. ME . Winter Weather Advisory until noon EST today for MEZ007>009. NH . Winter Weather Advisory until noon EST today for NHZ001>003. MARINE . Small Craft Advisory until 1 AM EST Monday for ANZ153. Gale Warning until 1 AM EST Monday for ANZ150>152-154.



NEAR TERM . Ekster SHORT TERM . Ekster LONG TERM . Schroeter


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44007 - PORTLAND 12 NM Southeast of Portland,ME 16 mi31 min WSW 23 G 29 38°F 42°F986.7 hPa33°F
44030 - Buoy B0102 - Western Maine Shelf 16 mi57 min WSW 25 G 31 38°F 9 ft987 hPa
WEXM1 - Wells Reserve, ME 20 mi61 min SW 8.9 35°F 31°F
WELM1 - 8419317 - Wells, ME 21 mi43 min 36°F 40°F
CASM1 - 8418150 - Portland, ME 26 mi43 min 37°F 41°F
44073 27 mi117 min WSW 23 G 29 40°F 42°F
IOSN3 - Isle of Shoals, NH 33 mi61 min WSW 31 G 37 38°F 988.5 hPa (+1.3)29°F
44098 - Jeffrey's Ledge, NH (160) 34 mi35 min 44°F10 ft
BGXN3 - Great Bay Reserve, NH 38 mi76 min WSW 6 37°F 990 hPa30°F

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Portland, Portland International Jetport, ME27 mi70 minWSW 910.00 miMostly Cloudy36°F32°F86%986.8 hPa

Link to 5 minute data for KPWM

Wind History from PWM (wind in knots)
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1 day agoN3NW5N3CalmCalmNE7NE6NE6NE9E7E6SE4E10E10E9E4E4NE3NE5NE63E6E11E5
2 days agoSW3CalmCalmCalmW3W3CalmNW3CalmNW4N3CalmN4NE4NE3N3N3N5N5W3CalmNW4N4N4

Tide / Current Tables for Cape Porpoise, Maine
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Cape Porpoise
Click for Map
Sun -- 02:05 AM EST     8.56 feet High Tide
Sun -- 07:10 AM EST     Sunrise
Sun -- 08:04 AM EST     0.57 feet Low Tide
Sun -- 10:01 AM EST     Moonrise
Sun -- 02:14 PM EST     9.11 feet High Tide
Sun -- 04:34 PM EST     Sunset
Sun -- 08:37 PM EST     -0.00 feet Low Tide
Sun -- 09:28 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.588.68.16.84.72.61.10.612.54.66.78.49.18.87.65.53.21.30.20.112.7

Tide / Current Tables for Wood Island Harbor, Maine
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Wood Island Harbor
Click for Map
Sun -- 01:55 AM EST     8.65 feet High Tide
Sun -- 07:09 AM EST     Sunrise
Sun -- 07:46 AM EST     0.58 feet Low Tide
Sun -- 10:01 AM EST     Moonrise
Sun -- 02:04 PM EST     9.21 feet High Tide
Sun -- 04:33 PM EST     Sunset
Sun -- 08:19 PM EST     -0.00 feet Low Tide
Sun -- 09:27 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.98.28.686.44.22.20.90.61.335.17.28.79.28.87.35.12.70.90.10.21.43.3

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
Ground Weather Radar Station




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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.