Tuesday, July7, 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 5:03AMSunset 8:26PM Tuesday July 7, 2020 6:19 AM EDT (10:19 UTC) Moonrise 10:30PMMoonset 7:22AM Illumination 96% Phase: Waning Gibbous; Moon at 17 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- 346 Am Edt Tue Jul 7 2020
Today..S winds around 5 kt, increasing to 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 1 to 2 ft. Patchy fog this morning with vsby 1 to 3 nm.
Tonight..S winds 5 to 10 kt. Seas 2 to 4 ft. Patchy drizzle after midnight. Patchy fog after midnight with vsby 1 to 3 nm.
Wed..S winds around 10 kt. Seas 2 to 4 ft. Patchy fog in the morning. A chance of showers, tstms with patchy drizzle in the morning, then a chance of showers and tstms in the afternoon. Some tstms may produce gusty winds, small hail, and heavy rainfall. Vsby 1 to 3 nm.
Wed night..S winds 5 to 10 kt, becoming sw after midnight. Seas 2 to 4 ft. A chance of showers and tstms in the evening. Patchy fog after midnight. Some tstms may produce gusty winds, small hail, and heavy rainfall in the evening. Vsby 1 to 3 nm.
Thu..S winds around 5 kt. Seas 1 to 2 ft. Patchy fog in the morning with vsby 1 to 3 nm.
Thu night..S winds around 5 kt. Seas 2 to 3 ft. Areas of fog after midnight with vsby 1 to 3 nm.
Fri..S winds up to 10 kt. Seas around 2 ft. Areas of fog. Vsby 1 to 3 nm.
Fri night..SE winds 5 to 10 kt. Seas 2 to 4 ft. Showers likely. Vsby 1 to 3 nm.
Sat..S winds 5 to 10 kt. Seas 3 to 5 ft. Showers likely. Vsby 1 to 3 nm.
Sat night..SW winds 5 to 10 kt. Seas 2 to 4 ft. A chance of showers. Winds and seas higher in and near tstms.
ANZ100 346 Am Edt Tue Jul 7 2020
Synopsis for stonington me to merrimack river ma out to 25 nm.. High pressure settles over the canadian maritimes for the remainder of the week with onshore flow and occasional overnight fog. A few mid-week impulses may bring showers and storms to the waters. A coastal system may approach the region this weekend, and brings the chance for more showers and Thunderstorms. &&


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 070819 AFDGYX

Area Forecast Discussion National Weather Service Gray ME 419 AM EDT Tue Jul 7 2020

SYNOPSIS. Highs pressure shifts east today and settles SE of the maritimes on Wednesday. Scattered thunderstorms, some strong, are expected on Wednesday as a front drops out of Quebec. Hot and humid conditions are expected Thursday and Friday with low pressure bringing widespread rainfall this weekend.

NEAR TERM /TODAY/. Today a ridge axis crosses the region proving another dry day. Meanwhile high pressure settling into Nova Scotia continues an onshore flow with a few areas of fog and stratus on satellite at this hour. Look for low moisture to mix out with sunrise, leading to fair weather cumulus/stratocu cover for much of the region today. Temperatures will initially be a little slow to warm with high humidity but ultimately top out in the low-80s over much of New Hampshire and western Maine, more subdued in the upper-60s and 70s along the NH Seacoast and up into southwest ME and the Mid-Coast.

SHORT TERM /TONIGHT THROUGH WEDNESDAY/. Flow aloft turns more zonal tonight with surface winds veering from SEerly to SWerly as high pressure sinks south of Nova Scotia over the waters. Height falls and broad isentropic lift behind the departing ridge axis allows showers to develop late tonight while continued onshore flow may lead to another period of fog and drizzle over the coast, possibly a little further in along the MidCoast of Maine. A subtle shortwave crosses the region in the mid- to late morning hours with rain showers, perhaps a storm or two, as mid-level lapse rates steepen.

How the morning behaves has great bearing on how the rest of the day plays out in terms of convection as a more pronounced upper level shortwave trough crosses the area later in the day. Given the current timing of the preceding wave, one scenario is that this wave mixes out low level moisture over the coastal plain leading to more favorable surface heating over the interior. This would set the stage for moderate to strong instability to develop during the afternoon with some CAMs taking MLCAPE up into the 1500-2000 J/kg range . more than enough for rigorous updrafts, and certainly enough for small hail and strong winds given increasing PWATs to near 1.75-2.0". High moisture availability also leaves at least an isolated flash flooding threat. Although shear isn't particularly strong with 0-6 bulk shear in the neighborhood of 25-35 kts, it is still more than enough to support multi-cell clusters. Another possible scenario, should the preceding wave come a little later than is presently forecast, is that this feature steals some of the instability aloft and cools the surface with rain showers . which would decrease storm threat. Will have to closely monitor these trends to evaluate severe and flash flooding threat.

LONG TERM /WEDNESDAY NIGHT THROUGH MONDAY/. Subtropical high pressure builds into the area Thursday and Friday before shifting into the Canadian maritimes over the weekend. A stray shower may pop up over southern NH in the heat of the afternoon, closer to a baroclinic zone stretching across the Gulf of Maine and into Massachusetts, but in general it will be warm with partly sunny skies. Weak gradient flow in general should result in onshore flow later in the day Thursday with sea breeze development, keeping it a bit cooler there. The column remains saturated near the coast with stratus and/or fog for the morning hours and late at night. This higher moisture will also contribute to heat indices in the lower to mid 90s across southern NH, where highs may just reach 90 degrees. Elsewhere we should see mainly mid to upper 80s.

Stronger onshore flow develops on Friday as southeasterly winds back north of a remnant tropical system. Increased cloud cover should keep it slightly cooler than Thursday overall. Dew points will continue to creep up however, resulting in another muggy and warm day, with heat indices in the lower 90s in some locations.

A tropical low is currently loosely organized over GA, and will shift off the SC coast late Wednesday. Models then move the circulation up the East Coast for the end of the week, with the H7 low becoming an open wave and being absorbed in the larger trof overhead on Saturday. This will usher in another surge of high theta- e air along a 40+ kt LLJ . just ahead of a couple short waves moving in from the west.

Isentropic lift really gets going Friday night into Saturday morning with specific humidities on the 305K plane reaching 12 g/kg. Forecast warm cloud depths of over 5kft across southern and coastal sections point towards an air mass ripe for heavy rainfall. Flash flooding will be the main concern with any showers/thunderstorms that develop. Expecting rain to begin across southern NH and SW ME with the remnant tropical moisture plume late Friday night. Rainfall will expand to the rest of NH and eventually ME Saturday as an attendant cold front arrives with the aforementioned short waves. QPF will likely be in the 1-2" range with locally higher amounts. Not expecting severe with so many clouds around and because of timing. But isolated embedded thunder is definitely possible.

We should see a break in precipitation early Sunday behind the departing, now extratropical system. However we remain in an active pattern and more precipitation is likely early next week. Fog and stratus will be an issue each morning and late at night with residual low level moisture hanging around.

AVIATION /08Z TUESDAY THROUGH SATURDAY/. Short Term . Low clouds and fog along the coast, and in a few valleys, lift around sunrise with VFR prevailing for the remainder of the day. Brief restrictions in -SHRA/BR over the mountains tonight with another round of coastal IFR or worse fog/stratus along the coast are possible tonight. Widespread SHRA and TSRA, some with gusty winds, will lead to periodic restrictions on Wednesday.

Long Term . High pressure builds in Thursday, bringing prevailing VFR conditions. Conditions deteriorate Friday night and for the weekend with several rounds of SHRA/isolated TSRA with moderate to heavy rain bringing periods of IFR/LIFR, mainly for coastal terminals. Winds will be light, but we may see some LLWS late Friday with a strong LLJ affecting southern NH and coastal ME.

MARINE. Short Term . Seas reach 5-7 ft over the waters on Wednesday as southerly/onshore flow increases ahead of a crossing wave. This wave may also bring showers and storms to the waters on Wednesday. Wind gusts also approach 25 kts at times, but gusts exceeding this are more likely in convection.

Long Term . High pressure will build in Thursday. Low pressure approaches from the south Friday night, with gusty easterly winds and building seas likely reaching SCA criteria for the outer waters and bays. Seas of 6-8 ft and winds drop off Sunday morning.

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



NEAR TERM . Casey SHORT TERM . Casey LONG TERM . Hanes


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CASM1 - 8418150 - Portland, ME 23 mi49 min 61°F 63°F
44007 - PORTLAND 12 NM Southeast of Portland,ME 28 mi89 min S 5.8 G 5.8 62°F 62°F2 ft1020.7 hPa (-0.0)
44032 - Buoy E0104 - Central Maine Shelf 35 mi75 min SE 1.9 G 1.9 58°F 56°F2 ft1020.2 hPa

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wiscasset Airport, ME15 mi26 minN 010.00 miFair54°F53°F97%1022.5 hPa
Auburn-Lewiston, ME20 mi23 minN 00.25 miLight Rain Fog56°F55°F100%1022.8 hPa

Link to 5 minute data for KIWI

Wind History from IWI (wind in knots)
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Last 24hrCalmCalm4E7NE7CalmE5S7S6S8S6SE654CalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
1 day agoCalmSE4SE3S3E4E4SE54SE43SE5SE6E3SE5E4CalmE3NE3CalmCalmCalmCalm3Calm
2 days agoCalmCalmCalmCalmE33S43SE5S75S4SE4S5S6CalmS3CalmS4S3S3S3SE3Calm

Tide / Current Tables for Brunswick, Maine
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Brunswick
Click for Map
Tue -- 03:36 AM EDT     4.50 feet High Tide
Tue -- 05:05 AM EDT     Sunrise
Tue -- 07:21 AM EDT     Moonset
Tue -- 12:04 PM EDT     -0.28 feet Low Tide
Tue -- 04:19 PM EDT     3.91 feet High Tide
Tue -- 08:24 PM EDT     Sunset
Tue -- 10:30 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.41.63.24.34.54.23.72.921.10.4-0.1-0.30.21.63.13.93.83.532.31.50.90.5

Tide / Current Tables for Upper Hell Gate (Sasanoa River, Maine) Current
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Upper Hell Gate (Sasanoa River
Click for Map
Tue -- 01:45 AM EDT     1.04 knots Max Flood
Tue -- 05:04 AM EDT     Sunrise
Tue -- 05:33 AM EDT     -0.00 knots Slack
Tue -- 07:20 AM EDT     Moonset
Tue -- 07:49 AM EDT     -1.03 knots Max Ebb
Tue -- 11:40 AM EDT     0.00 knots Slack
Tue -- 03:02 PM EDT     0.94 knots Max Flood
Tue -- 06:11 PM EDT     -0.00 knots Slack
Tue -- 08:07 PM EDT     -0.75 knots Max Ebb
Tue -- 08:23 PM EDT     Sunset
Tue -- 10:29 PM EDT     Moonrise
Tue -- 11:36 PM EDT     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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0.61110.80.4-0.3-0.9-1-0.9-0.7-0.40.20.70.90.90.90.70.1-0.5-0.8-0.7-0.5-0.2

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 (6,6,7,8)
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Ground Weather Radar Station Portland, ME
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