Sunday, February23, 2020
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Marine Weather and Tides
Brunswick, 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 6:25AMSunset 5:21PM Sunday February 23, 2020 10:24 AM EST (15:24 UTC) Moonrise 7:51AMMoonset 6:20PM Illumination 0% Phase: New Moon; Moon at 29 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- 715 Am Est Sun Feb 23 2020
Today..SW winds around 5 kt. Seas 1 to 2 ft.
Tonight..SW winds around 5 kt. Seas 1 to 2 ft, building to 2 to 3 ft after midnight.
Mon..SW winds 5 to 10 kt, becoming 5 to 15 kt in the afternoon. Seas 2 to 3 ft.
Mon night..SW winds 5 to 10 kt, becoming nw after midnight. Seas 2 to 3 ft.
Tue..NE winds around 5 kt. Seas 1 to 2 ft.
Tue night..NE winds 5 to 10 kt. Seas 1 to 2 ft.
Wed..NE winds 5 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of rain. Vsby 1 to 3 nm.
Wed night..E winds 10 to 20 kt with gusts up to 25 kt. Seas 5 to 8 ft. Rain. Vsby 1 to 3 nm.
Thu..S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 7 ft. Rain. Vsby 1 to 3 nm.
Thu night..W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft.
ANZ100 715 Am Est Sun Feb 23 2020
Synopsis for stonington me to merrimack river ma out to 25 nm.. Winds will turn more southwest today as high pressure to our south slowly slides off to the east. A low pressure system is expected to arrive over the waters by the middle of next week with increasing winds and seas. &&


7 Day Forecast for Marine Location Near Brunswick, ME
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location: 43.91, -69.97     debug


Area Discussion for - Gray/Portland, ME
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FXUS61 KGYX 231037 AFDGYX

Area Forecast Discussion National Weather Service Gray ME 537 AM EST Sun Feb 23 2020

SYNOPSIS. High pressure will remain in control of the weather across northern New England through Sunday. Above normal temperatures continue into the beginning of next week. By the middle and latter portions of next week, a series of weather systems will bring a period of unsettled weather.

NEAR TERM /UNTIL 6 PM THIS EVENING/. 535am Update . Made some adjustments to temperatures from this morning through early this afternoon as they continue to drop under good radiational cooling conditions. To add some context to my earlier discussion, temperatures should rebound rather quickly this morning under mostly clear/sunny skies; the passing high clouds should interfere little once the sun rises.

Previously . Currently, a weak mid-level feature is passing to our north and spawning some scattered clouds over the northwest ME mountains and portions of NH. Some passing clouds will be just about all that our region sees today as we remain on the far northern periphery of a broad area of high pressure centered over the southeast U.S. Light southwest winds continue to funnel warmer air into New England and high temperatures will be a few degrees warmer today as a result, mostly in the mid to upper 40s; some locations in southeastern NH could reach 50 degrees.

SHORT TERM /6 PM THIS EVENING THROUGH 6 PM MONDAY/. Quiet weather continues through tonight as two low pressure systems, one near James Bay and the other over the central U.S., move east. Low temperatures will range from the upper teens to upper 20s. The northern system moves into northern Quebec by Monday morning but it will only bring some scattered cloud cover to far northern zones during the day as any precipitation should remain well to our north. Under otherwise mostly sunny skies, temperatures will be a few degrees warmer than today as many locations in southern NH and southwest ME hit 50 degrees. The southern system should reach the Midwest by Monday evening and will bring increasing clouds to western portions of our region toward the end of the day.

LONG TERM /MONDAY NIGHT THROUGH SATURDAY/. N of approaching low pressure system onshore flow is expected to develop and persist into Wed. Forecast soundings show several thousand ft of the bottom of the profile saturated by Wed morning. I could see a period of drizzle developing or perhaps some light rain in more consistent upsloping areas. Overall temps are fairly mild and snow or freezing drizzle will be harder to come by . but it cannot be ruled out across the far interior or higher elevations of the Srn half of the forecast area. Despite the mild temps the cloud cover and any light precip should ensure that Mon remains the warmest day of this stretch.

More impacts are expected later Wed into Thu as the main occluded front lifts Nwd thru the region. Upper trof becoming negatively tilted will drive a strongly forced band of WAA precip thru the region around the Wed night into Thu morning time period. Again the antecedent air mass will be quite mild overall with high pressure anchored to our S promoting SW flow aloft ahead of the system. The polar high pressure across the Canadian prairies will be branching towards the E . but without the ability to really deliver fresh cold air it will be tough to change the air mass significantly. I do expect there to be some cold air damming and went on the cooler side of guidance temps. Forecast soundings show the danger in this forecast though. A deep isothermal layer exists from the surface up thru H8 before cooling. This layer sits with a degree of freezing even across coastal areas for a time. It does not take much of a model adjustment to turn that into a wet snowfall. Ensemble guidance does continue to spit out around 30 to 40 percent of members with accumulating snowfall at the coast. Given that on the Srn edges of guidance snowfall amounts are often inflated I would hazard that those percentages are too high. Despite mostly rain in the forecast for Srn NH and coastal Wrn ME . across the interior there is a better chance for accumulating snowfall for a time. For now I will stick with rain and snow wording and leave any widespread mixed precip out of the forecast until a clearer signal develops from guidance.

AVIATION /12Z SUNDAY THROUGH THURSDAY/. Short Term . VFR conditions expected at all terminals through Monday under mostly clear skies. Clouds will begin to increase at HIE/LEB/MHT/CON during the afternoon on Monday.

Long Term . Onshore flow develops Tue and CIGs will gradually lower as moisture increases. MVFR CIGs Tue will give way to IFR CIGs Wed. Any precip is likely to be very light until later Wed when occluded front lifts across the area. Ptype is still very much in question across much of the area. Most likely remaining all RA across Srn NH and coastal Wrn ME . but across interior locations some mixed precip and SN are possible. IFR conditions are likely to linger into Thu morning before scattering out.

MARINE. Short Term . Seas and winds expected to remain below SCA criteria through noon Monday. The two northernmost outer water zones may see brief SCA conditions Monday afternoon as winds gust to 25 kts at times and seas briefly build to 5 ft.

Long Term . NE winds steadily increase ahead of approaching low pressure By Wed SCA conditions are likely. and there is a window Wed night into Thu outside the bays that gale force gusts are possible. SCA conditions will continue thru Fri.

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

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CASM1 - 8418150 - Portland, ME 23 mi55 min 37°F 37°F
44007 - PORTLAND 12 NM Southeast of Portland,ME 28 mi95 min WSW 7.8 G 7.8 36°F 39°F2 ft1020.5 hPa (+0.3)24°F
44032 - Buoy E0104 - Central Maine Shelf 35 mi81 min SSW 1.9 G 3.9 41°F 42°F2 ft1019.2 hPa

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wiscasset Airport, ME15 mi32 minVar 410.00 miFair39°F24°F55%1020.9 hPa
Auburn-Lewiston, ME20 mi29 minN 010.00 miFair31°F19°F64%1021.1 hPa

Link to 5 minute data for KIWI

Wind History from IWI (wind in knots)
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Last 24hr3CalmSW3646SW4SW3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm4
1 day agoSW54W4SW5S10SW9SW6S3CalmCalmCalm36SW9SW4
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SW7CalmSW3CalmCalmCalmW3W3SW5
2 days ago5W94
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554NW44443CalmCalmCalmCalmCalmCalmCalmE3CalmCalm3--

Tide / Current Tables for Brunswick, Maine
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Brunswick
Click for Map
Sun -- 01:32 AM EST     3.73 feet High Tide
Sun -- 06:27 AM EST     Sunrise
Sun -- 06:50 AM EST     Moonrise
Sun -- 09:27 AM EST     0.21 feet Low Tide
Sun -- 10:33 AM EST     New Moon
Sun -- 01:39 PM EST     4.13 feet High Tide
Sun -- 05:19 PM EST     Sunset
Sun -- 05:21 PM EST     Moonset
Sun -- 09:59 PM EST     -0.08 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.73.63.73.42.92.31.60.90.50.20.41.42.93.94.13.93.42.61.81.10.50.1-0.10.5

Tide / Current Tables for Upper Hell Gate (Sasanoa River, Maine) Current
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Upper Hell Gate (Sasanoa River
Click for Map
Sun -- 12:53 AM EST     0.94 knots Max Flood
Sun -- 03:16 AM EST     -0.00 knots Slack
Sun -- 05:12 AM EST     -0.65 knots Max Ebb
Sun -- 06:26 AM EST     Sunrise
Sun -- 06:50 AM EST     Moonrise
Sun -- 08:50 AM EST     0.00 knots Slack
Sun -- 10:33 AM EST     New Moon
Sun -- 12:54 PM EST     0.91 knots Max Flood
Sun -- 03:26 PM EST     -0.00 knots Slack
Sun -- 05:18 PM EST     Sunset
Sun -- 05:20 PM EST     Moonset
Sun -- 05:36 PM EST     -0.85 knots Max Ebb
Sun -- 09:28 PM EST     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.90.90.70.2-0.4-0.6-0.6-0.5-0.30.10.60.80.90.90.80.3-0.4-0.8-0.8-0.7-0.6-0.20.30.7

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 (10,2,3,4)
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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.