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ANZ230 Boston Harbor- 1001 Am Est Wed Nov 29 2023
This afternoon..W winds 10 to 15 kt. Gusts up to 20 kt. Waves around 2 ft.
Tonight..SW winds 10 to 15 kt. Waves 1 foot or less, then around 2 ft after midnight.
Thu..SW winds 10 to 15 kt. Waves around 2 ft in the morning, then 1 foot or less.
Thu night..SW winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft.
Fri..SW winds 10 to 15 kt. Gusts up to 20 kt in the morning. Waves around 2 ft in the morning, then 1 foot or less. A chance of showers.
Fri night..SW winds 5 to 10 kt, becoming W after midnight. Waves 1 foot or less. Showers.
Sat..N winds 5 to 10 kt.
Sat night through Sun night..NE winds around 10 kt with gusts up to 20 kt. A chance of rain.
seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.

ANZ200 1001 Am Est Wed Nov 29 2023
Synopsis for massachusetts and rhode island coastal waters.. High pres builds to our south today through Fri. A frontal system moves through later on Fri into early Sat. Active pattern continues late Sat into early next week.

FXUS61 KGYX 291529 AFDGYX

Area Forecast Discussion National Weather Service Gray ME 1029 AM EST Wed Nov 29 2023

SYNOPSIS
Snow showers in the mountains will gradually come to an end this morning while most everyone else sees more sun. Some increase in clouds is expected this afternoon. Much warmer weather is expected for Thursday. A low pressure system will make for unsettled weather on Friday, with a prolonged stretch of unsettled weather possibly continuing through the weekend and into early next week.

NEAR TERM /TODAY/
1025 AM Update...Only cosmetic changes to sky cover based on observations. The inherited forecast remains in good shape.

640 AM Update...No changes to the going forecast. Upslope clouds in the mountains will continue through at least mid morning with some light snow showers. Otherwise, partly to mostly sunny elsewhere

Previously...

Relatively quiet weather is expected today with a good amount of sunshine, a brisk breeze, and cold temperatures. Early morning clouds and snow showers continue across northernmost NH, but these will gradually diminish early and eventually end this morning. A weak disturbance aloft may move overhead after midday in conjunction with the start of a WAA regime. This may result in an increase in clouds for some this afternoon. High temperatures were derived from a blend of MAV/MET/NBM output which yields readings around 5 degrees below normal.

SHORT TERM /TONIGHT THROUGH THURSDAY/
WAA regime may aid in variably cloudy skies tonight, at least early on before improvement occurs later on. A few light snow showers or flurries will be possible in the mountains near the Canadian Border. Otherwise, another chilly night in store. The WAA pattern continues on Thursday with dry weather expected.
Southwesterly winds will yield highs around 10 degrees warmer than today.

LONG TERM /THURSDAY NIGHT THROUGH TUESDAY/
Overview...

A weak area of low pressure tracks south of the area late Friday into Friday night. A cold front then stalls across New England through the weekend as high pressure passes to the north, making for an extended period of unsettled conditions.
Several waves of low pressure move through the area on Saturday through at least Monday, with the strongest one likely to arrive early next week.

Details...

Friday looks mild with southwesterly flow pushing temperatures to near 50 degrees across southern areas. Clouds quickly fill in during the day as a weak area of low pressure approaches. Light rain and some snow arrive toward sunset, with the bulk of the action occuring through the evening hours and into the early overnight timeframe. The system looks weak, but trends since yesterday have shown a slightly more moist system tracking a bit further north, bringing a much better chance for precip to the area. Light rain is likely across southern areas, with better chances for snow but lighter precip amounts overall across far northern areas. Overall it looks to be shaping up to be a fairly high POP and low QPF system for most areas.

Afterwards, the pattern looks much different for the weekend than it was looking yesterday. High pressure behind this system looks weaker and more likely to remain farther to our north, causing the front to stall across New England, rather than clearing the region. Weak waves of low pressure then progress along this front, with one bringing the chance for scattered showers on Saturday, and another doing the same on Sunday. At the same time, the high to the north will filter in cooler air on northeasterly flow. While precipitation looks light through this timeframe, the set up overall looks favorable for some mixed precipitation. With such a notable shift from yesterday's forecast, it's still too early to try to pin down any kind of sleet or freezing rain areas, so this forecast will remain with rain and snow wording given the uncertainty that remains.

Eyes then turn to whether a stronger coastal system develops in the Monday to Tuesday timeframe. Between Friday and Tuesday, it looks like no less than five disturbances will pass either through or nearby New England. Of these, the fourth and fifth look to have the best chance to become more organized early next week. Models have actually come into worse agreement since yesterday on the progression of these systems, so at this point we'll just have to wait until we get a little closer in time before being able to have higher confidence. Given the fairly drastic change for the weekend forecast from just 3-4 days out, it's difficult to have much confidence in next week's forecast at this time.

AVIATION /16Z WEDNESDAY THROUGH SUNDAY/
Short Term...Scattered snow showers may produce brief reductions in visibility through early this morning in the mountains.Otherwise, VFR expected at all sites today through Thursday. Westerly winds will gust around 20 knots today.

Long Term...VFR conditions prevail through midday Friday, then a period of MVFR to IFR ceilings arrive Friday night with light rain at most terminals, and some light snow across northern terminals. Conditions improve somewhat by Saturday morning, but periods of MVFR ceilings likely linger through the weekend into early next week as multiple disturbances move through the area.

MARINE
Short Term...Small craft conditions continue into early afternoon on gusts around 25 kt. These will diminish to just below SCA thresholds for this afternoon through Thursday.

Long Term...SCA conditions to possibly marginal southwesterly gales arrive Thursday night into Friday as a weak area of low pressure arrives along a cold front. The front then stalls near the waters through the weekend as high pressure passes well to the north of the waters, resulting in mainly fair conditions across the waters. A more significant coastal low pressure system is then possible early next week.

GYX WATCHES/WARNINGS/ADVISORIES
ME...None.
NH...None.
MARINE...Small Craft Advisory until 3 PM EST this afternoon for ANZ150>154.

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Squamscott River RR. Bridge
Click for Map
Wed -- 02:18 AM EST     6.91 feet High Tide
Wed -- 06:52 AM EST     Sunrise
Wed -- 08:30 AM EST     0.44 feet Low Tide
Wed -- 09:28 AM EST     Moonset
Wed -- 02:20 PM EST     7.85 feet High Tide
Wed -- 04:10 PM EST     Sunset
Wed -- 05:48 PM EST     Moonrise
Wed -- 09:11 PM EST     -0.45 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Squamscott River RR. Bridge, New Hampshire, Tide feet

Dover Point
Click for Map
Wed -- 01:32 AM EST     6.45 feet High Tide
Wed -- 06:52 AM EST     Sunrise
Wed -- 07:16 AM EST     0.41 feet Low Tide
Wed -- 09:28 AM EST     Moonset
Wed -- 01:34 PM EST     7.33 feet High Tide
Wed -- 04:10 PM EST     Sunset
Wed -- 05:48 PM EST     Moonrise
Wed -- 07:57 PM EST     -0.42 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Dover Point, Piscataqua River, New Hampshire, Tide feet

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