Saturday, July11, 2020
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Marine Weather and Tides
Cousins Island, 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 5:08AMSunset 8:24PM Saturday July 11, 2020 10:32 PM EDT (02:32 UTC) Moonrise 12:00AMMoonset 11:37AM Illumination 59% Phase: Waning Gibbous; Moon at 21 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- 703 Pm Edt Sat Jul 11 2020
.small craft advisory in effect through Sunday afternoon...
Tonight..S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Areas of fog after midnight. Vsby variable to less than one quarter nm after midnight.
Sun..SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Areas of fog in the morning with vsby 1 to 3 nm.
Sun night..SW winds 5 to 10 kt. Seas 2 to 4 ft.
Mon..SW winds around 5 kt. Seas 2 to 3 ft. Scattered showers with a chance of tstms in the afternoon.
Mon night..SW winds 5 to 10 kt, becoming W after midnight. Seas 2 to 3 ft. Scattered showers with a chance of tstms in the evening, then scattered showers after midnight. Vsby 1 to 3 nm.
Tue..N winds around 5 kt. Seas 1 to 2 ft. Scattered showers.
Tue night..N winds around 5 kt. Seas 1 to 2 ft. Scattered showers in the evening.
Wed..NE winds around 5 kt. Seas 1 foot or less.
Wed night..SW winds around 5 kt. Seas 1 foot or less.
Thu..S winds up to 10 kt. Seas 1 foot or less.
Thu night..S winds 5 to 10 kt. Seas 1 foot or less. Winds and seas higher in and near tstms.
ANZ100 703 Pm Edt Sat Jul 11 2020
Synopsis for stonington me to merrimack river ma out to 25 nm.. A trough of low pressure will remain west of the water through early next week. This will allow for scattered showers and perhaps a Thunderstorm during the period, mainly during the afternoon and evening hours. &&


7 Day Forecast for Marine Location Near Cousins Island, ME
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location: 43.76, -70.17     debug


Area Discussion for - Gray/Portland, ME
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FXUS61 KGYX 112307 AAA AFDGYX

Area Forecast Discussion . UPDATED National Weather Service Gray ME 707 PM EDT Sat Jul 11 2020

SYNOPSIS. A trough of low pressure will trigger scattered showers and thunderstorms this evening. Another trough will approach the region from the west on Sunday, triggering more scattered showers and thunderstorms, mainly during the afternoon hours. This system will remain over New England for the beginning of next week, allowing for scattered showers and storms.

NEAR TERM /UNTIL 6 AM SUNDAY MORNING/. Update . Biggest changes were to reduce PoP as convective coverage is rather low at the moment and only expected to trend down after sunset. Also I have issued a dense fog advisory for parts of the Midcoast . where model guidance is most persistent with low visibilities tonight.

Prev Disc . There will be a moderate rip current risk early this evening along the Maine and New Hampshire beaches.

It will continue to be a very warm and humid evening across the region, especially over southern New Hampshire where overnight lows will be above 70 degrees. Scattered showers and thunderstorms will continue, some with heavy downpours as we remain in near record high precipitable water values for today. A short wave trough will approach from the west, briefly enhancing convection for a period this evening as heights begin to fall aloft.

Thereafter, a few showers and storms will still cross the region, but not as widespread during the late night hours. Greatest chance for strong gusty winds will be over New Hampshire and far western interior Maine where CAPE values will top 1500 J/KG.

Fog will develop once again tonight. Not entirely sure if it will be quite as widespread as last night as winds are gradually backing slightly to the southwest just above the surface with time. However, we may need dense fog advisories for the Midcoast region once again as Rockland already down to a half mile in fog at times.

SHORT TERM /6 AM SUNDAY MORNING THROUGH SUNDAY NIGHT/. It will be very warm and humid again on Sunday, with apparent temperatures running very high, especially over southern New Hampshire. Scattered showers and thunderstorms can be expected once again as a trough of low pressure remains to our west. A cold front will cross the region during the midday hours as well aiding in convective development and allowing perhaps slightly less humid air to advect into the region late in the day.

The convection will diminish Sunday evening. It will be more comfortable with overnight lows dropping into the 60s across the region.

LONG TERM /MONDAY THROUGH SATURDAY/. The active upper level wave pattern continues through the coming work week with a few chances for showers and afternoon storms. Low amplitude flow lends to relatively low confidence when timing out crossing disturbances, especially during the second half of the week when larger synoptic-scale model disagreement comes in. Long-range models continue to diverge beyond midweek, disagreeing on the building and subsequent erosion of ridging. Overall am expecting an unsettled start and end to the week with showers and afternoon storms, punctuated by mid-week ridging. Temperatures will generally run in the 70s and 80s, moderated by seabreezes and periods of onshore flow along the coast.

Starting Monday . upper air charts show a positively tilted trough axis extending from eastern Canada down into the Great Lake region with a stalled surface front around the coastal plain of New England. A vort max/remnant shortwave on the downstream portion of the trough crosses the region during the afternoon with models showing a wave developing along the leftover surface boundary. Expect a moderate rainfall threat in showers, locally enhanced by convection . for storms, models are not very enthusiastic about sfc heating being enough to overcome somewhat weak mid-level lapse rates. However wind fields may still be favorable for organization should pockets of stronger instability develop. The best (still outside) chances for strong storms exist over southern New Hampshire where favorable surface heating may occur. Showers decrease overnight, and increase again Tuesday as the main trough axis crosses the region. Favorable mixing conditions in cold advection Tuesday means a nice northwesterly breeze forms with high bases in any showers that do form.

Ridging builds midweek behind the departing northern stream trough ushering in a drier period and eventually a warming and moistening trend as riding crosses the region. Look for temperatures around normal Wednesday to trend up into the 80s to near 90 by the weekend. Meanwhile upstream, Pacific energy surges into the PACNW/BC mid-week . models diverge in handling this energy, specifically with resulting shortwaves and PoPs locally. Thursday or Friday should see PoPs return.

AVIATION /00Z SUNDAY THROUGH THURSDAY/. Short Term . IFR conditions in scattered showers and thunderstorms this evening. Areas of fog overnight, perhaps not as widespread as last night as winds continue to gradually back with time. LIFR conditions expected in the fog.

Long Term . VFR prevails for the most part with possible restrictions in SHRA Monday and Tuesday with TSRA possibly impacting southern NH/ME terminals on Monday. RKD may again see restrictions in BR/FG Monday night as well.

MARINE. Short Term . SCAs remain in effect. Waves will continue to run in the 4 to 6 foot range with winds gusting out of the south up to 25 kt. Marine fog may lower visibilities tonight, mainly over eastern areas.

Long Term . Waves gradually fall below 5 ft from west to east Monday over the waters. Another period of SCAs is possible toward the end of the work week with a crossing wave, however little confidence exists in timing this system.

HYDROLOGY. We continue to monitor convective development in a deeply rich, tropical environment. Cells continue to propagate rather quickly, but any training could lead to locally heavy rainfall.

There has been some response to the upper reaches of the Saco river due to upslope rains from earlier in the day, however so far, no significant rises.

GYX WATCHES/WARNINGS/ADVISORIES. ME . Dense Fog Advisory from 11 PM this evening to 9 AM EDT Sunday for MEZ022-025>028. NH . None. MARINE . Small Craft Advisory until 5 PM EDT Sunday for ANZ150>154.



NEAR TERM . Legro


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CASM1 - 8418150 - Portland, ME 8 mi44 min 71°F 65°F
44007 - PORTLAND 12 NM Southeast of Portland,ME 16 mi42 min S 18 G 19 67°F 63°F5 ft1003.8 hPa (+0.7)
WEXM1 - Wells Reserve, ME 35 mi92 min S 6 71°F 70°F
WELM1 - 8419317 - Wells, ME 37 mi44 min 71°F 71°F1004.8 hPa
44030 - Buoy B0102 - Western Maine Shelf 42 mi88 min S 16 G 21 5 ft1010.4 hPa
44032 - Buoy E0104 - Central Maine Shelf 43 mi88 min S 12 G 14 65°F 59°F4 ft1003.9 hPa

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Portland, Portland International Jetport, ME11 mi41 minS 10 G 1910.00 miPartly Cloudy74°F69°F85%1004.5 hPa
Auburn-Lewiston, ME21 mi36 minSSE 810.00 miFair73°F71°F94%1004.7 hPa

Link to 5 minute data for KPWM

Wind History from PWM (wind in knots)
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1 day agoE3E3E5E5E3E4E3CalmNE3NE33E4E6E8E85SE5
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2 days agoSW4SW4E3CalmCalmCalmCalmNW3NW5NW4N4E5E4E7E7E7S6S8S8SE4S5S5S4E3

Tide / Current Tables for Prince Point, Maine
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Prince Point
Click for Map
Sat -- 04:07 AM EDT     9.19 feet High Tide
Sat -- 05:09 AM EDT     Sunrise
Sat -- 10:26 AM EDT     0.80 feet Low Tide
Sat -- 11:37 AM EDT     Moonset
Sat -- 04:44 PM EDT     8.80 feet High Tide
Sat -- 08:22 PM EDT     Sunset
Sat -- 10:48 PM EDT     1.55 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.25.27.28.69.28.87.65.63.51.80.911.93.75.77.58.68.88.16.64.72.91.81.6

Tide / Current Tables for Upper Hell Gate (Sasanoa River, Maine) Current
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Upper Hell Gate (Sasanoa River
Click for Map
Sat -- 01:58 AM EDT     0.00 knots Slack
Sat -- 04:37 AM EDT     0.77 knots Max Flood
Sat -- 05:07 AM EDT     Sunrise
Sat -- 08:42 AM EDT     -0.00 knots Slack
Sat -- 10:49 AM EDT     -0.82 knots Max Ebb
Sat -- 11:35 AM EDT     Moonset
Sat -- 02:33 PM EDT     0.00 knots Slack
Sat -- 05:13 PM EDT     0.81 knots Max Flood
Sat -- 08:21 PM EDT     Sunset
Sat -- 09:27 PM EDT     -0.00 knots Slack
Sat -- 11:16 PM EDT     -0.63 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.4-0.200.40.70.80.70.60.3-0.2-0.7-0.8-0.6-0.4-0.20.20.60.80.80.70.60.2-0.3-0.6

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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Gray/Portland, ME (22,6,7,8)
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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.