Thursday, February20, 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 6:30AMSunset 5:18PM Thursday February 20, 2020 11:59 AM EST (16:59 UTC) Moonrise 6:06AMMoonset 3:17PM Illumination 10% 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- 915 Am Est Thu Feb 20 2020
Today..NW winds 5 to 10 kt, becoming 5 to 15 kt with gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Light freezing spray.
Tonight..NW winds 10 to 15 kt, becoming 5 to 15 kt after midnight. Seas 1 to 2 ft. Light freezing spray.
Fri..NW winds 5 to 10 kt, becoming sw 5 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 to 2 ft. Light freezing spray in the morning.
Fri night..SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft.
Sat..W winds 5 to 15 kt with gusts up to 20 kt, becoming 5 to 10 kt in the afternoon. Seas 2 to 4 ft, subsiding to 1 to 2 ft in the afternoon.
Sat night..W winds 5 to 10 kt. Seas 1 foot or less.
Sun..SW winds around 5 kt. Seas 1 foot or less.
Sun night..SW winds around 5 kt. Seas 1 foot or less.
Mon..SW winds 5 to 10 kt. Seas 1 foot or less.
Mon night..SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of rain and snow showers. Vsby 1 to 3 nm.
ANZ100 915 Am Est Thu Feb 20 2020
Synopsis for stonington me to merrimack river ma out to 25 nm.. An area of high pressure will gradually build in from the south and west through the upcoming weekend. A storm system will approach from the mid atlantic region by early Tuesday. &&


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 201417 AAA AFDGYX

Area Forecast Discussion . UPDATED National Weather Service Gray ME 917 AM EST Thu Feb 20 2020

SYNOPSIS. Arctic air and below normal temperatures can be expected through Friday as an area of high pressure gradually builds in from the west. That high pressure will ultimately build by to our south this weekend allowing temperatures to moderate with continued dry conditions. The next chance for widespread precipitation will come Monday night and Tuesday of next week as an area of low pressure passes near New England.

NEAR TERM /UNTIL 6 PM THIS EVENING/.

915 AM Update: Going forecast is in good shape as of 9am with minor adjustments to sky cover and temperatures through the today period given mid morning observations. There will be some increase in clouds this afternoon with GOES 16 visible imagery showing cloud cover over upstate New York advancing east. It will remain dry however . with dewpoints falling below zero signaling a chilly night upcoming.

756 AM Update: Quick update to drop wind chill advisory with winds having largely gone calm /esp where temps are lowest/ and with temps beginning to move upward from overnight lows. No other changes at this time.

620 AM . Minor ESTF update to reflect the current mesonet in near term grids.

Prev Disc . At 07z . a sprawling 1046 millibar high was centered over the northern plains. With the exception of a few lake effect clouds extending downwind into the upper Connecticut valley and northern New Hampshire . GOES infrared imagery showed clear skies across the area at the moment After a chilly start. temperatures will only rebound to 5 to 15 above in the mountains and upper teens to mid 20s elsewhere in our fresh arctic airmass. A passing impulse may produce a few fair weather clouds for a time later today.

SHORT TERM /6 PM THIS EVENING THROUGH 6 PM FRIDAY/. Light winds and mainly Clear skies under the surface ridge tonight will make for a very chilly start Friday morning. Lows will range from the teens below zero in the mountains . to 5 below to 5 above in southern and coastal sections. The airmass begins to moderate on Friday with a few passing warm air advection clouds mainly over northern and mountain sections. Highs will range from near 20 in the mountains to mid and upper 20s elsewhere.

LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/. Overview: The long term period can essentially be broken down into two parts: the quiet weather from Friday night through Monday and the more active weather from Monday night into Wednesday. Broad surface high pressure over the southeast U.S. will allow for quiet weather through Monday and warm temperatures on southwesterly flow. A mid-level trough building into the central and eastern U.S. will then allow a return to more active weather toward the middle part of next week.

Impacts: No high impact weather anticipated at this time. However, it is possible that the extended period of warm temperatures could allow river ice to move and cause ice jams next week.

Details: The first half of the long term period is expected to be quiet due to a broad area of surface high pressure parked over the southeastern U.S. through much of the weekend. An area of low pressure over northern Quebec and northwesterly mid-level flow may provide enough energy for some upslope snow showers in the mountains through Sunday, but otherwise, widespread precipitation is not expected and warm temperatures will be the story through Monday. Southwesterly flow around the area of high pressure will allow warmer air to funnel into New England and the result will be high temperatures several degrees above normal. Much of the region will rise into the 40s on Sunday and some locations in southern NH could reach 50 degrees on Monday.

Our weather looks potentially more active for the latter portion of the period due to two factors. First, Sunday night into Monday, an area of low pressure is expected to develop and push east through the central U.S., reaching the Ohio Valley by Tuesday morning and kicking the high pressure over the southeast U.S. out into the Atlantic in the process. That area of low pressure is expected to pass near or over New England on Tuesday. Second, an upper-level trough digs south into the southeast U.S. in the wake of the area of low pressure, potentially putting us in the path of another potent area of low pressure late in the week.

Getting back to Tuesday and Wednesday . much like the previous forecast, an area of low pressure is expected to bring widespread precipitation to our region. The best chances for precipitation are expected during the day on Tuesday. With the warm temperatures continuing on Tuesday, the best guess for precipitation type at this time is mostly rain for southern areas and mostly a rain/snow mix for northern areas. Deterministic global model QPF continues to vary, but it still looks reasonable, based on global ensemble probabilities, that it will be less than a half inch over our region.

The possibility for ice movement on rivers, possibly leading to ice jams, bears watching next week due to the extended warm temperatures and potential for precipitation on Tuesday.

AVIATION /14Z THURSDAY THROUGH MONDAY/. Short Term /Through Friday/ . VFR.

Long Term . VFR conditions expected at all terminals Friday night through Monday. It is possible that HIE may see periods of MVFR conditions Saturday into Sunday due to cloud cover. Winds will generally be out of the SW over the weekend, becoming more southerly on Monday.

MARINE. Short Term . Lingering SCA's for the outer waters today along with some light freezing spray. We should drop below SCA's all waters tonight and Friday as surface ridge noses in.

Long Term . SCA possible for the outer waters late Friday night into Saturday morning as waves build to 5 ft. Seas subside for the rest of the weekend and through Tuesday morning before building again Tuesday evening into Wednesday as an area of low pressure passes over or near the waters.

GYX WATCHES/WARNINGS/ADVISORIES. ME . None. NH . None. MARINE . Small Craft Advisory until 9 PM EST this evening for ANZ150- 152-154.

NEAR TERM UPDATE . ARNOTT


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CASM1 - 8418150 - Portland, ME 8 mi65 min 22°F 37°F
44007 - PORTLAND 12 NM Southeast of Portland,ME 16 mi69 min WNW 5.8 G 12 21°F 39°F2 ft1029.3 hPa (-0.5)3°F
WEXM1 - Wells Reserve, ME 35 mi59 min WNW 6 24°F 3°F
WELM1 - 8419317 - Wells, ME 37 mi65 min 23°F 39°F1029.9 hPa
44030 - Buoy B0102 - Western Maine Shelf 42 mi115 min WNW 12 G 14 2 ft1030.7 hPa
44032 - Buoy E0104 - Central Maine Shelf 43 mi115 min W 12 G 18 20°F 43°F2 ft1028.7 hPa

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Portland, Portland International Jetport, ME11 mi68 minWNW 12 G 2210.00 miA Few Clouds23°F1°F38%1029.6 hPa
Auburn-Lewiston, ME21 mi63 minWNW 510.00 miFair19°F0°F43%1030.1 hPa

Link to 5 minute data for KPWM

Wind History from PWM (wind in knots)
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W12NW8NW8NW8NW8W7NW9N4N4N4CalmCalmCalmCalmSW4W4NW12
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1 day agoN5N4CalmSE11SE9SE5SE5SE5NW5NW8W9NW6W6SW5SW6W5W6W8W6SW6SW9W11W18
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2 days agoNW11N10NW11NW11NW8N5N4N4N7N7--N8CalmN3N5NE6NE9N7N6N5--N7NE7N5

Tide / Current Tables for Prince Point, Maine
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Prince Point
Click for Map
Thu -- 02:32 AM EST     0.92 feet Low Tide
Thu -- 05:05 AM EST     Moonrise
Thu -- 06:32 AM EST     Sunrise
Thu -- 08:51 AM EST     9.75 feet High Tide
Thu -- 02:17 PM EST     Moonset
Thu -- 03:17 PM EST     -0.08 feet Low Tide
Thu -- 05:16 PM EST     Sunset
Thu -- 09:31 PM EST     8.69 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.82.11.112.146.28.19.49.797.24.92.60.8-00.21.63.75.87.58.58.67.5

Tide / Current Tables for Upper Hell Gate (Sasanoa River, Maine) Current
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Upper Hell Gate (Sasanoa River
Click for Map
Thu -- 12:47 AM EST     -0.00 knots Slack
Thu -- 02:42 AM EST     -0.58 knots Max Ebb
Thu -- 05:04 AM EST     Moonrise
Thu -- 06:25 AM EST     0.00 knots Slack
Thu -- 06:31 AM EST     Sunrise
Thu -- 10:45 AM EST     0.94 knots Max Flood
Thu -- 01:07 PM EST     -0.00 knots Slack
Thu -- 02:15 PM EST     Moonset
Thu -- 03:24 PM EST     -0.75 knots Max Ebb
Thu -- 05:14 PM EST     Sunset
Thu -- 07:16 PM EST     0.00 knots Slack
Thu -- 11:23 PM EST     0.92 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.5-0.1-0.5-0.6-0.5-0.4-0.20.30.70.80.90.90.70.1-0.5-0.7-0.7-0.7-0.6-0.10.30.60.80.9

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 (11,2,3,4)
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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.