Saturday, February27, 2021
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Marine Weather and Tides
Sanford, ME

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:21AMSunset 5:31PM Saturday February 27, 2021 4:41 PM EST (21:41 UTC) Moonrise 6:58PMMoonset 7:57AM Illumination 99% Phase: Waning Gibbous; Moon at 16 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- 333 Pm Est Sat Feb 27 2021
.small craft advisory in effect through late tonight...
Tonight..SW winds 10 to 15 kt, becoming nw late this evening and overnight. Gusts up to 25 kt. Seas 4 to 7 ft, subsiding to 3 to 5 ft after midnight. A chance of rain early this evening with vsby 1 to 3 nm.
Sun..W winds 5 to 10 kt, becoming S in the afternoon. Seas 3 to 5 ft.
Sun night..SE winds 10 to 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. Scattered showers.
Mon..SW winds 10 to 15 kt, becoming W 15 to 20 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. Scattered showers in the morning.
Mon night..NW winds 20 to 30 kt with gusts up to 40 kt. Seas 6 to 9 ft. Scattered snow showers in the evening. Light freezing spray after midnight.
Tue..NW winds 25 to 30 kt with gusts up to 40 kt. Seas 6 to 9 ft. Light freezing spray.
Tue night..NW winds 20 to 30 kt, becoming W 15 to 20 kt after midnight. Seas 4 to 6 ft. Light freezing spray.
Wed..W winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Seas 3 to 5 ft, subsiding to 2 to 3 ft in the afternoon.
Wed night..W winds 10 to 15 kt. Seas 2 to 3 ft.
Thu..W winds 10 to 15 kt. Seas 2 to 3 ft.
Thu night..NW winds 10 to 15 kt. Seas 2 to 3 ft.
ANZ100 333 Pm Est Sat Feb 27 2021
Synopsis for stonington me to merrimack river ma out to 25 nm.. Low pressure will depart through the canadian maritimes tonight. Another weak low pressure system looks to pass south of the waters later Sunday into Monday. An arctic frontal boundary will pass through the region Monday night, likely bringing a period of northwesterly gales lasting into Tuesday. High pressure will bring more tranquil conditions by midweek.


7 Day Forecast for Marine Location Near Sanford, ME
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location: 43.44, -70.77     debug


Area Discussion for - Gray/Portland, ME
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FXUS61 KGYX 272121 AFDGYX

Area Forecast Discussion National Weather Service Gray ME 421 PM EST Sat Feb 27 2021

SYNOPSIS. Precipitation will come to end this evening as low pressure moves into the Canadian Maritimes. A weak system will cross the area tomorrow night with snow and rain showers. We will see very mild temperatures on Monday before an Arctic cold front passes through the area in the late afternoon or evening. Temperatures on Tuesday will top out in the teens and 20s along with gusty winds. Broad high pressure over the eastern U.S. beyond Tuesday should keep our region mostly dry with seasonable temperatures through Friday.

NEAR TERM /UNTIL 6 AM SUNDAY MORNING/. Precipitation will diminish over the next several hours from southwest to northeast across the region. Most areas that have not yet switched to rain will likely see snow end as a brief wintry mix.

Patchy fog looks likely across much of the region, with some areas of dense fog after the precipitation ends this evening. Any fog will linger until stronger mixing occurs after the passage of the cold front late this evening and shortly after midnight. Temperatures will be lingering around freezing across interior areas before the mixing occurs, so areas of black ice are also likely to accompany the fog in many locations.

With the frontal boundary expected to clear the region shortly after midnight, a west-northwesterly breeze should prevent temperatures from falling too far tonight, with lows mainly in the 20s expected.

SHORT TERM /6 AM SUNDAY MORNING THROUGH 6 PM SUNDAY/. A nice mild day is expected on Sun. Despite shallow mixing temps should make it into the 40s for most areas S of the mtns. It will be an in between period . as precip is not really likely until Sun evening.

LONG TERM /SUNDAY NIGHT THROUGH SATURDAY/. Overview . The extended remains a rollercoaster temp-wise. Despite the wild swings in temps there is not a strong signal for a large QPF event in the next week.

Impacts . Main concerns will revolve around strong cold front Mon night/Tue. This will feature a return to deep winter-like temps . strong wind gusts around 35 mph . and the potential for snow squalls along the cold front.

Forecast Details . A weak front will lift thru the area Sun night into Mon. The best forcing for ascent will be with the S/WV trof tracking thru Quebec . and offshore with convection. I still think there will be lots of rain/snow showers around so I am continuing the trend of a high PoP/low QPF forecast. Overall I do not anticipate significant impacts from this system . though a brief period of mixing may occur in the mtns.

Deeper mixing behind that front on Mon though will result in an even milder day. The MHT-ASH corridor may make a run at 50 degrees. While this will likely lead to quite a bit of melting of snow and ice . I do not expect this fairly routine spring- like warmth to cause significant issues on that front.

Mon night a tropopause polar vortex is forecast to blast thru New England. This feature is currently positioned in far Nrn Northwest Territories on the edge of the Beaufort Sea. These features of often associated with Arctic outbreaks and given this origin I anticipate this will be no different. High temps Tue will be at least 20 degrees colder than Mon. Strong wind gusts will accompany the cold . approaching 35 mph at times during the day As winds start to kick up late Mon. wind chills may approach 20 below in the mtns. There will also be some potential for snow squalls on the leading edge of the TPV . though model placement of that is still to be determined. For now I think the most likely part of the forecast area to see the core of the TPV and thus strongest forcing will be Srn NH. I have increased PoP to chance there to highlight the snow showers over the rest of the forecast area. There will also likely be a sustained period of upslope snow showers in the wake of the cold front . and I have increased PoP to high likely/low categorical given the dry model bias of snows after frontal passages.

Beyond Tue ensemble guidance is in fair agreement for near to above normal temps and below normal chances of significant QPF.

AVIATION /20Z SATURDAY THROUGH THURSDAY/. Short Term . Snow and rain will bring intervals of IFR and MVFR conditions through this evening. Patchy fog will also reduce visibilities this evening, bringing LIFR conditions at times. Drier air will begin to push in from the NW and northern locations may lift to MVFR by morning. After sunrise the rest of the area will follow suit.

Long Term . A weak front will cross the area Sun. While a period of fairly widespread SHRA or SHSN will cross the area . it is low confidence in how likely it will be for any one terminal to experience precip I have higher confidence inland. away from most TAF sites . so I am not entirely confident in widespread IFR conditions just yet. A stronger front crosses the area Mon night into Tue. There may be some +SHSN along the front itself but timing and coverage is to be determined. There is a much higher likelihood of widespread NW wind gusts approaching 30 kt Tue. MVFR CIGs and local IFR in SHSN will transition to the mtns around HIE behind the cold front.

MARINE. Short Term . Low pressure will continue to affect the waters through this evening. Southern winds with a good fetch off the open Gulf of Maine may allow for gale force winds along the Midcoast into this evening where gale warnings remain in effect. Elsewhere, winds may gust to 30 knots where SCAs remain in effect through tonight. The exception will be Casco Bay where SCAs are only for this afternoon. Patchy fog expected this afternoon into this evening prior to the wind shift to the west. Winds and seas subside Sunday.

Long Term . SCA conditions may linger with a weak frontal passage Sun night into Mon. Of bigger concern will be a strong . Arctic front that crosses the waters Mon night into Tue Gale force wind gusts. heavy snow showers . and freezing spray will all be possible thru Tue. Winds and seas will gradually diminish into Wed.

GYX WATCHES/WARNINGS/ADVISORIES. ME . Winter Weather Advisory until 7 PM EST this evening for MEZ007>009-012>014. NH . Winter Weather Advisory until 5 PM EST this afternoon for NHZ005>007. Winter Weather Advisory until 7 PM EST this evening for NHZ001>004. MARINE . Small Craft Advisory until 5 PM EST this afternoon for ANZ153. Small Craft Advisory until 5 AM EST Sunday for ANZ151-152-154. Gale Warning until 5 AM EST Sunday for ANZ150.



SYNOPSIS . Clair NEAR TERM . Clair SHORT TERM . Legro LONG TERM . Legro/Watson AVIATION . Clair/Legro MARINE . Clair/Legro


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WELM1 - 8419317 - Wells, ME 14 mi54 min SW 1.9 G 2.9 41°F 38°F1014.8 hPa
WEXM1 - Wells Reserve, ME 14 mi42 min S 2.9 40°F 40°F
44030 - Buoy B0102 - Western Maine Shelf 26 mi98 min S 16 G 19 42°F 7 ft1014.5 hPa
CMLN3 26 mi158 min SE 8.9 38°F 40°F
BGXN3 - Great Bay Reserve, NH 27 mi57 min S 1 42°F 1014 hPa
CASM1 - 8418150 - Portland, ME 32 mi54 min 42°F 37°F
44007 - PORTLAND 12 NM Southeast of Portland,ME 34 mi32 min SSE 14 G 18 42°F 40°F1013.7 hPa40°F
IOSN3 - Isle of Shoals, NH 34 mi42 min S 16 G 17 42°F 1013.5 hPa (-4.0)42°F

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sanford, Sanford Regional Airport, ME5 mi46 minN 00.75 miLight Rain Fog/Mist39°F38°F96%1014.4 hPa
Rochester - Skyhaven Airport, NH14 mi51 minN 00.50 miLight Rain Fog39°F37°F93%1013.5 hPa
Pease Air Force Base / Portsmouth, NH24 mi46 minSE 51.25 miFog/Mist40°F40°F98%1013.9 hPa

Link to 5 minute data for KSFM

Wind History from SFM (wind in knots)
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Last 24hrNW3SE3CalmCalmCalmSW3CalmCalmCalmCalmCalmCalmCalmSW4CalmCalmCalmCalm4S6SE5SE6SE5Calm
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NW7NW9W6NW3W8W8W5W6W7W8W10NW4W6W11
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Tide / Current Tables for Kennebunkport, Maine
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Kennebunkport
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Sat -- 03:19 AM EST     Full Moon
Sat -- 04:53 AM EST     -0.13 feet Low Tide
Sat -- 06:21 AM EST     Sunrise
Sat -- 06:55 AM EST     Moonset
Sat -- 11:07 AM EST     9.93 feet High Tide
Sat -- 05:25 PM EST     -0.89 feet Low Tide
Sat -- 05:28 PM EST     Sunset
Sat -- 05:57 PM EST     Moonrise
Sat -- 11:37 PM EST     9.23 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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8.26.54.21.90.3-0.10.62.44.97.49.29.99.57.95.42.70.4-0.8-0.70.62.95.57.79

Tide / Current Tables for Salmon Falls River entrance, Piscataqua River, New Hampshire
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Salmon Falls River entrance
Click for Map
Sat -- 12:15 AM EST     6.98 feet High Tide
Sat -- 03:19 AM EST     Full Moon
Sat -- 06:22 AM EST     Sunrise
Sat -- 06:29 AM EST     -0.10 feet Low Tide
Sat -- 06:56 AM EST     Moonset
Sat -- 12:26 PM EST     7.92 feet High Tide
Sat -- 05:30 PM EST     Sunset
Sat -- 05:59 PM EST     Moonrise
Sat -- 07:01 PM EST     -0.71 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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76.85.84.22.40.9001.12.956.97.87.86.95.23.21.2-0.2-0.7-0.21.33.45.5

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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.