Saturday, July4, 2020
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Marine Weather and Tides
Brunswick Station, 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 5:01AMSunset 8:27PM Saturday July 4, 2020 8:25 AM EDT (12:25 UTC) Moonrise 8:17PMMoonset 4:17AM Illumination 99% Phase: Waxing Gibbous; Moon at 14 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- 652 Am Edt Sat Jul 4 2020
Today..E winds around 5 kt, becoming se around 5 kt this afternoon. Seas 1 to 2 ft.
Tonight..S winds around 5 kt. Seas 1 to 2 ft. Areas of fog. Vsby 1 to 3 nm.
Sun..S winds 5 to 10 kt. Seas 1 to 2 ft. Areas of fog in the morning. Scattered showers in the afternoon. Vsby 1 to 3 nm in the morning.
Sun night..SE winds up to 10 kt, becoming N after midnight. Seas 2 to 3 ft. Scattered showers.
Mon..NE winds around 5 kt. Seas 2 to 3 ft.
Mon night..SW winds around 5 kt. Seas 1 to 2 ft in the evening, then 1 foot or less.
Tue..S winds up to 10 kt. Seas 2 to 3 ft.
Tue night..S winds 5 to 10 kt. Seas 2 to 3 ft.
Wed..S winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Wed night..SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers.
ANZ100 652 Am Edt Sat Jul 4 2020
Synopsis for stonington me to merrimack river ma out to 25 nm.. Weak surface high pressure is expected over the waters today. Moist onshore flow continues tonight, with areas of fog developing again. A front will cross the waters late Sunday, with showers and Thunderstorms. Some of these may be on the stronger side. Otherwise high pressure persists over the maritimes with mostly onshore flow into midweek. &&


7 Day Forecast for Marine Location Near Brunswick Station, ME
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location: 43.79, -69.89     debug


Area Discussion for - Gray/Portland, ME
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FXUS61 KGYX 041053 AFDGYX

Area Forecast Discussion National Weather Service Gray ME 653 AM EDT Sat Jul 4 2020

SYNOPSIS. Saturday will be mainly dry with comfortable temperatures. A cold front will cross the area Sunday bringing a chance for showers and afternoon thunderstorms which may approach severe limits. Heat and humidity build towards the middle of next week with chances for afternoon showers and thunderstorms returning through the end of the week.

NEAR TERM /THROUGH TONIGHT/. Update . Minor changes to reflect latest observational trends.

Previous discussion . Areas of fog and low clouds will scatter out this morning as temps warm.

One S/WV trof is dropping thru the region now . and in its wake clouds and showers will be somewhat suppressed. A second S/WV trof will brush the area as it crosses the Maritimes this afternoon. This may provide enough lift to pop a few showers or even a thunderstorm . especially across Wrn ME.

Plenty of fog and low clouds are visible on satellite tonight . and there is really no impetus to clear it out today. So that will all slosh back towards the coast as the sun starts to lower in the sky and we lose peak heating. I expect fairly widespread fog/stratus overnight. Some of this could be dense.

SHORT TERM /SUNDAY THROUGH SUNDAY NIGHT/. This will all be in advance of another pair of trofs that will drop thru the region Sun. Timing looks to be the major fly in the ointment from making this a more coherent threat for severe wx. Current model forecasts show one weaker S/WV trof moving thru the morning with clouds/showers that limits extent of instability for the stronger S/WV during the afternoon. A delay in the first trof will certainly allow more daytime heating and greater instability by afternoon. With a fair H5 jet streak moving thru the region . and favorable left exit region nearly centered on the forecast area . there should be enough shear and lift for some thunderstorms to be strong to severe over parts of the area Given the marginal risk from SPC. I have added both gusty winds and small hail to the forecast. HREF supports at least isolated stronger cells across parts of NH and SWrn ME . so trends should be monitored closely.

LONG TERM /MONDAY THROUGH FRIDAY/. The upper air pattern for the next work week is mainly zonal over the CONUS with strong ridging anchored over the southern latitudes and an active shortwave trough pattern near the Canadian border. Locally, this means that occasional disturbances punctuate a gradually warming and moistening airmass through the work week. Broad high pressure off the east coast provides a cooler onshore breeze while the interior warms up, which throws some complexity into the forecast in terms of daily instability and high temperatures.

Starting Monday, a cool northerly breeze provides the coolest day of the week after a cold front exits to the waters. h850 temperatures drop to within a couple degrees of +10C as the forcing trough swings into the Canadian maritimes which caps temperatures in the 70s to low-80s, right around to a hair below normal for this time of year. Overall expect a great weather day on Monday with mostly sunny skies and dew points dropping into the 50s, perhaps upper-40s over the mountains. Relatively low dew points and high pressure moving eastward into the area allows for a cool Monday night with lows ranging from around 50 in northern valleys to around 60 along the New Hampshire Seacoast.

High pressure gradually builds into the Gulf of Maine by Tuesday with onshore flow developing as a result; meanwhile aloft, ridging noses NEward into New England which starts the warm trend that carries through the end of the work week. Starting Tuesday night, increasing baroclinicity and warm frontal forcing over New England brings PoP chances back as a shortwave approaches from the Great Lakes region. Went with both shower and storm chances Tuesday afternoon and evening, into the early overnight, as these overrunning type situations tend to be more elevated that typical diurnal convection. At the same time, humidity will continue to increase with PWAT increasing to 1.5-1.75" by Wednesday lending to a heavy rainfall/hydrological threat with any convection. Given the weak forcing trough aloft there is uncertainty in the strength and movement of an associated cold front crossing the area mid-week. Recent model trends suggest a frontal boundary settles and stalls over New England and provides a focus for shower and afternoon storm activity through the end of the week, which is supported in ensemble analysis which shows scattered QPF over most sites (highest in the mountains) Wednesday into at least the early part of the weekend. Temperatures will rely on onshore/maritime influence but in general look for temperatures to trend upward well into the 80s and 90s by week's end with muggy, overnight lows ultimately limited by increasing dew points.

AVIATION /12Z SATURDAY THROUGH WEDNESDAY/. Short Term . Widespread MVFR and areas of IFR or lower in marine fog/stratus will persist into the morning hours. These low CIGs will scatter out and VFR is expected thru afternoon. Fog/stratus should move quickly back inland in the early evening . with widespread IFR or lower conditions expected tonight for much of the region S of the mtns. A front drops thru the area Sun afternoon . with SHRA and TSRA. Local IFR conditions are possible in any convection.

Long Term . VFR prevails early in the week with NWerly to NEerly winds on Monday. Increasing humidity and periods of onshore flow during the remainder of the week increase chances of patchy fog development over sheltered inland valleys and eventually along the coast by the end of the week. Increasing humidity also increases SHRA and afternoon/evening TSRA chances Tuesday through the end of the week. Best odds for brief to periodic restrictions come Tuesday and Wednesday with a crossing frontal system.

MARINE. Short Term . Areas of fog will persist into the morning before lifting That is expected to be short lived however. as fog should move quickly back over the waters during the late afternoon and early evening hours. Around the same time a front will bring showers and thunderstorms to the waters. Some of the thunderstorms may contain gusty winds.

Long Term . High pressure builds into the waters early next week, then shifts into the Canadian Maritimes by mid-week. Strengthening onshore flow ahead of a crossing frontal system may bring seas over the outer waters to 5 ft Tuesday night into Wednesday but otherwise winds and seas have a low probability of reaching SCA thresholds.

GYX WATCHES/WARNINGS/ADVISORIES. ME . Beach Hazards Statement through Sunday evening for MEZ023>028. NH . Beach Hazards Statement through Sunday evening for NHZ014. MARINE . None.



NEAR TERM . Legro SHORT TERM . Legro LONG TERM . Casey


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CASM1 - 8418150 - Portland, ME 21 mi55 min 61°F 63°F
44007 - PORTLAND 12 NM Southeast of Portland,ME 23 mi95 min E 9.7 G 9.7 59°F 60°F3 ft1013 hPa (+0.5)59°F
44032 - Buoy E0104 - Central Maine Shelf 29 mi81 min ENE 7.8 G 7.8 54°F 55°F3 ft1012.2 hPa
WEXM1 - Wells Reserve, ME 47 mi85 min NNE 2.9 64°F 60°F
WELM1 - 8419317 - Wells, ME 48 mi55 min ESE 4.1 G 5.1 63°F 64°F1013.7 hPa

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wiscasset Airport, ME15 mi32 minN 07.00 miOvercast60°F57°F93%1014.1 hPa
Portland, Portland International Jetport, ME24 mi34 minE 410.00 miOvercast64°F57°F81%1013.7 hPa

Link to 5 minute data for KIWI

Wind History from IWI (wind in knots)
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Last 24hrE6E5E6E9E7445E7SE6E6SE3CalmCalmE3Calm3CalmCalmCalmCalmE3CalmCalm
1 day agoSW54S4S6SW7SW6S55S6S5S3S3SW3CalmCalmCalmCalmCalmCalm33NE354
2 days agoCalmCalmCalmCalm3S44S6S63SE3CalmCalmCalmCalmCalmCalmCalmCalmCalmSW3CalmSW44

Tide / Current Tables for Cundy Harbor, New Meadows River, Maine
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Cundy Harbor
Click for Map
Sat -- 04:16 AM EDT     Moonset
Sat -- 05:01 AM EDT     -0.92 feet Low Tide
Sat -- 05:03 AM EDT     Sunrise
Sat -- 11:16 AM EDT     9.31 feet High Tide
Sat -- 05:07 PM EDT     0.28 feet Low Tide
Sat -- 08:16 PM EDT     Moonrise
Sat -- 08:24 PM EDT     Sunset
Sat -- 11:24 PM EDT     10.83 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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9.57.24.31.6-0.2-0.9-0.31.64.16.68.49.397.65.32.910.30.82.457.69.710.7

Tide / Current Tables for Lowe Point (northeast of), Sasanoa River, Maine Current
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Lowe Point (northeast of)
Click for Map
Sat -- 12:23 AM EDT     -0.00 knots Slack
Sat -- 02:53 AM EDT     -2.26 knots Max Ebb
Sat -- 04:15 AM EDT     Moonset
Sat -- 05:02 AM EDT     Sunrise
Sat -- 06:50 AM EDT     0.00 knots Slack
Sat -- 09:52 AM EDT     1.63 knots Max Flood
Sat -- 12:54 PM EDT     -0.00 knots Slack
Sat -- 03:10 PM EDT     -1.88 knots Max Ebb
Sat -- 06:51 PM EDT     0.00 knots Slack
Sat -- 08:16 PM EDT     Moonrise
Sat -- 08:24 PM EDT     Sunset
Sat -- 09:33 PM EDT     1.93 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.5-0.9-2-2.3-2.1-1.7-10.21.21.61.61.61.1-0.1-1.3-1.9-1.7-1.4-0.80.21.31.91.91.8

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
Wind Forecast for Gray/Portland, ME (8,2,3,4)
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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.