Somerset, MA Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Somerset, MA


December 9, 2023 9:28 AM EST (14:28 UTC)
Sunrise 6:58AM   Sunset 4:15PM   Moonrise  4:22AM   Moonset 2:55PM 

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. Privacy and Cookie policy

Marine Forecasts
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ANZ236 Narragansett Bay- 701 Am Est Sat Dec 9 2023
.storm watch in effect from late Sunday night through Monday morning...
Today..S winds 5 to 10 kt. Waves around 2 ft or less.
Tonight..S winds 5 to 10 kt. Waves around 2 ft or less.
Sun..S winds 10 to 15 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 30 kt. Waves around 2 ft or less, then around 3 ft in the afternoon. Patchy fog. Showers likely.
Sun night..S winds 25 to 30 kt with gusts up to 45 kt. Waves 3 to 4 ft, increasing to 4 to 7 ft after midnight. Showers. Vsby 1 to 3 nm.
Mon..SW winds 25 to 30 kt with gusts up to 50 kt, becoming W 20 to 25 kt with gusts up to 35 kt in the afternoon. Waves 4 to 7 ft, decreasing to 3 to 4 ft in the afternoon. Showers. Vsby 1 to 3 nm.
Mon night..W winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 30 kt. Waves 3 to 4 ft in the evening, then around 2 ft or less.
Tue..W winds 10 to 15 kt with gusts up to 20 kt.
Tue night..SW winds 10 to 15 kt with gusts up to 25 kt.
Wed and Wed night..W winds 10 to 15 kt with gusts up to 25 kt.
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 701 Am Est Sat Dec 9 2023
Synopsis for massachusetts and rhode island coastal waters.. High pres moves offshore today. A powerful low pres will move across the waters Sun night and Mon. Wind gusts are expected to reach storm force, producing very rough seas. Conditions gradually improve on Tues as another high pres builds to the S of the region.


7 Day Forecast for Marine Location Near Somerset, MA
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Area Discussion for - Boston, MA
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FXUS61 KBOX 091355 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 855 AM EST Sat Dec 9 2023

SYNOPSIS
High pressure drifts offshore today, providing dry, tranquil weather to our region. A strong frontal system has the potential to bring a period of heavy rain, strong southerly winds to the entire region, with possible coastal flooding along the south coast. All of this occurring from late Sunday into Monday morning. A few snow showers across northwest Massachusetts are possible Monday afternoon and evening as the system departs.
Otherwise, turning drier Monday evening with a brief shot of colder air, but temperatures look to rebound back closer to seasonable levels Tuesday through Thursday.

NEAR TERM /THROUGH TONIGHT/

High pressure moves offshore today, leading to mainly dry weather through tonight. A warm front is also expected to move through southern New England during this time. Besides the increased temperatures, the main impact will be the increasing clouds this afternoon into tonight. Cannot completely dismiss the idea of a few sprinkles, but there remains a lot of drier air aloft to overcome before precipitation would reach the ground.

SHORT TERM /SUNDAY THROUGH MONDAY/
Updated: 3:30AM

* Multi-hazardous system Sunday night into Monday bringing damaging wind gusts, flooding rains, coastal flooding concerns, in addition to dangerous marine conditions.

Our confidence continues to increase with the latest round of model guidance that a robust weather system will bring multiple hazards to our region. Those hazards include; damaging winds, coastal flooding, flooding rains, and dangerous marine conditions. During this update there were not many large deviations from the previous issuance as guidance remains in fairly good agreement, outside of a couple minor adjustments that were made now the high-res guidance has began to capture the onset of the storm.

The first-half of Sunday will be a transition period, largely dry, but a few spot showers may develop with WAA. Winds begin to uptick during this time, generally between 15-25 MPH, stronger winds arrive overnight. Afternoon highs climb to the upper-50s and low-60s. The time between mid to late afternoon conditions begin to go down hill.

The second-half of Sunday mid-level heights fall ahead of a robust trough, which digs as far south as the gulf coast. The trough becomes negatively tilted overnight through late Monday morning, which will help the surface low strengthen as it ejects off the coast of the Mid Atlantic. Since last night guidance has backed off, a little bit, on how deep the surface low drops as it moves northeast across the New England states. What continues to remain constant are the strong winds associated with the LLJ. The 925mb LLJ over RI and SE MA remain out of the south between 70 and 80 knots. Across the interior the 925mb winds, from the south are between 40 to 60 knots.

PWATs remain elevated, on average 1.3 inches, though some guidance does support PWAT values at 1.8 inches. Never the less this is an anomolously moist system for early December, 300 to 400 percent of normal, and 4 to 5 standard deviations above normal.

Monday afternoon the surface low exits towards northern Maine, which will shift our winds from south to the west, CAA changes rain to snow across the elevated terrain of western Massachusetts and potentially the northern hills of Worcester County. For what it is worth, the 00z deterministic GFS trended noticeably colder and suggesting potential snow coverage could expand outside of the higher terrain. If confidence grows, snow showers may be added into the forecast across some lower elevations of western Massachusetts and Connecticut.

Now, let's discuss the hazards a bit further:

Damaging Winds - Confidence remains high for strong to damaging wind across southern New England for Sunday night through Monday morning.
A 'High Wind Watch' continues for Cape Cod and the Islands, includes the Elizabeth Islands and Block Island. Greatest challenge are how much of those strong winds associated with the LLJ are going to mix down to the surface. To reiterate, BUFKIT continues to show a low level inversion, which could trap the strongest winds above the ground. Since the strongest winds aloft are across the waters, confidence remained too low to expand the watch any further west.
For what it is worth, the ECMWF ensemble has shifted the max wind gusts down, but still a note worthy 50-80 percent change for max wind gusts over the Cape and Islands to exceed 50 knots. As mentioned before, as we get closer to the event this watch can either be upgraded to a warning or replaced by a 'Wind Advisory'. Do expect there will be areas west of the current watch that do fall under an advisory leading up to Sunday night.

Flooding Rains - Global ensembles are in good agreement rain totals amount between 1 and 2 inches, with the greatest amounts shifting east towards eastern Connecticut, central Massachusetts, and Rhode Island. An extreme, the GFS ensembles have probabilities up to a 30 percent for rainfall exceeding 4 inches from southern Hartford County and northeast to southern Worcester County. A Flood Watch continues for all of northern Connecticut and central to western Massachusetts. We could experience poor drainage due to leaf and debris blocking storm drains and urban flooding. Also, the MMEFS, an ensemble forecast for river flooding does have a few areas mainly across Connecticut and western Massachusetts with a probability of 30 percent area rivers could reach minor flood stage during this event. Lastly, we can not rule out some thunder during the overnight as the possibility is there for a fine line to develop, as this system has more spring-like qualities. 00z CAMs do end 00z Monday so it does not sample the early morning hours when a fine line could occur. We will need to continue to monitor this. For now, did leave mention of thunder in the forecast grids. In the event of thunderstorm development it would become easier to mix those strong winds aloft from the LLJ down to the surface.

Coastal Flooding - This hazard comes with the understanding that high tide would need to occur with the peak storm surge to have the greatest impacts. We remain alert to the Monday morning high tide for the south coast of Rhode Island and southeast Massachusetts. Our greatest confidence in coastal flooding occurring, in and around Narragansett Bay. Here we have a 'Coastal Flood Watch'. There is little change in the guidance so the forecast for coastal flooding has not deviated. If the stronger winds materialize (mix down) they could lead to as much as 3 feet of surge. Then, if that surge coincides with high tide (6:20 am in Providence) it could lead to coastal flooding. At the Fox Point forecast location the mean of flood guidance takes it to around 7 ft (minor flood) but a worse case scenario takes it to near 9 ft (moderate flood). Too soon to know with any certainty but both are in the realm of possibility with this system. Post frontal winds will then kick up during the day on Monday with winds gusting 35-45 mph out of the west.

Marine - Because of the growing confidence of strong gusts over area waters, a 'Storm Watch' remains in effect for gusts over knots or greater. In addition to potential storm force winds, seas off shore build to a height of 12 to 15 feet, while closer to the shore line, waves could be as high as 8 to 12 feet! It is not out of the realm of possibilities there could be coastal erosion along south facing beaches.

LONG TERM /MONDAY NIGHT THROUGH FRIDAY/
The main weather feature to impact southern New England during this portion of the forecast will be a large high pressure over the Central Appalachians and Mid Atlantic. This high pressure should maintain dry weather. Expecting near normal temperatures through mid week, with a slight warming trend late next week.

AVIATION /14Z SATURDAY THROUGH WEDNESDAY/
Forecast Confidence Levels:

Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.

12Z: TAF forecast remains largely unchanged, there are a few area of patchy fog in western CT and northwest MA. Wanted to add in there is potential for LLWS Sunday morning, 12z-15z, and could be in the range of 30-40 kts. Upcoming TAFs may reflect this if confidence increases.

High Confidence through Tonight. Moderate Confidence Sunday through Monday. High Confidence Monday Night through Wednesday.

Today...VFR cloud bases with dry weather.

Tonight...VFR cloud bases and mainly dry weather. However, trending MVFR in areas of fog and a risk of showers toward 12z Sunday across western MA/CT.

Sunday...Mainly MVFR with areas of IFR across the higher terrain during the morning, trending to more widespread IFR during the afternoon across the western half of southern New England. Strong south winds developing.

Sunday Night and Monday...Strong gusty south winds 35-50 kt Sunday night, shifting west to northwest behind a strong cold front Monday. Poor visibility in widespread rain and isolated thunderstorms. Some snow possible across the east slopes of the Berkshires Monday before precipitation ends from west to east.

KBOS Terminal...Moderate confidence in TAF. Quiet weather through this evening, but there is a low probability that low clouds could bring periods of IFR tonight before the Sunday morning push.

KBDL Terminal...Moderate confidence in TAF. Quiet weather through this evening, but there is a low probability that low clouds could bring periods of IFR tonight before the Sunday morning push.

Outlook /Monday Night through Wednesday/...

Monday: Mainly VFR, with local IFR possible. Strong winds with gusts up to 55 kt. Chance SHRA.

Monday Night: VFR. Strong winds with gusts up to 45 kt.

Tuesday through Tuesday Night: VFR. Breezy.

Wednesday: VFR. Windy with local gusts up to 30 kt.

MARINE
Forecaster Confidence Levels:

Low - less than 30 percent.
Medium - 30 to 60 percent.
High - greater than 60 percent.

High Confidence through tonight.

High pressure moves offshore today, followed by a warm front tonight into Sunday. Areas of fog possible tonight as humidity increases.

The main focus for mariners should be the expected period of dangerous winds and seas Sunday night into Monday. Southerly storm force gusts are the main threat, followed by westerly gale force gusts behind a strong cold front Monday. Poor visibility at times in rainfall. There is even a risk for isolated thunderstorms.

Outlook /Monday Night through Wednesday/...

Monday: Low risk for storm force winds with gusts up to 60 kt.
Rough seas up to 20 ft. Chance of rain showers. Local visibility 1 to 3 nm.

Monday Night: Strong winds with gusts up to 40 kt. Rough seas up to 15 ft.

Tuesday: Low risk for Small Craft Advisory winds with gusts up to 30 kt. Seas up to 5 ft.

Tuesday Night through Wednesday: Moderate risk for Small Craft Advisory winds with gusts up to 30 kt. Seas up to 5 ft.

BOX WATCHES/WARNINGS/ADVISORIES
CT...Flood Watch from Sunday afternoon through Monday evening for CTZ002>004.
MA...Flood Watch from Sunday afternoon through Monday evening for MAZ002>004-008>012-026.
High Wind Watch from late Sunday night through Monday afternoon for MAZ022>024.
RI...High Wind Watch from late Sunday night through Monday afternoon for RIZ008.
Coastal Flood Watch from late Sunday night through Monday morning for RIZ002-004>007.
MARINE...Storm Watch from late Sunday night through Monday morning for ANZ230-236.
Storm Watch from late Sunday night through Monday afternoon for ANZ231>235-237-250-251-254>256.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 0 mi71 min NNE 1G2.9 30.29
FRVM3 - 8447386 - Fall River, MA 1 mi71 min 47°F30.30
CPTR1 - 8452944 - Conimicut Light, RI 9 mi71 min WNW 5.1G5.1 43°F30.28
NAXR1 - Narragansett Bay Reserve, RI 10 mi104 min W 1.9 40°F 30.2740°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 10 mi71 min WSW 1G1.9 30.31
PVDR1 12 mi71 min NNW 1.9G2.9 30.30
FOXR1 - 8454000 - Providence, RI 14 mi71 min NNE 1G2.9 44°F30.29
PDVR1 14 mi71 min 0G1 30.29
NBGM3 15 mi71 min SSE 9.9G9.9 30.27
QPTR1 - 8454049 - Quonset Point, RI 15 mi71 min 0G1 44°F30.29
NWPR1 - 8452660 - Newport, RI 16 mi71 min SSE 9.9G13 47°F30.28
44085 23 mi63 min 49°F3 ft
BUZM3 - Buzzards Bay, MA 23 mi89 min SSE 14G15 48°F 30.30
BZBM3 - 8447930 - Woods Hole, MA 29 mi71 min 45°F30.29
WAXM3 - Waquoit Bay Reserve, MA 35 mi104 min E 1.9 42°F 30.3042°F
44090 45 mi59 min 46°F 48°F1 ft
BHBM3 - 8443970 - Boston, MA 45 mi71 min 30.28
44020 - NANTUCKET SOUND 49 mi49 min SE 9.7G14 46°F 44°F30.3043°F

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Wind History for Borden Flats Light at Fall River, MA
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KEWB NEW BEDFORD RGNL,MA 11 sm35 mincalm10 smClear45°F41°F87%30.29
KPVD THEODORE FRANCIS GREEN STATE,RI 14 sm37 mincalm6 smMostly Cloudy Mist 39°F36°F87%30.29
KTAN TAUNTON MUNI KING FIELD,MA 14 sm36 minSE 0310 smClear45°F37°F76%30.29
KUUU NEWPORT STATE,RI 14 sm35 minSSE 1010 smClear48°F43°F81%30.28
KSFZ NORTH CENTRAL STATE,RI 22 sm32 minS 0310 smClear39°F39°F100%30.28

Wind History from EWB
(wind in knots)


Tide / Current for Fall River, Narragansett Bay, Massachusetts (sub)
   
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Fall River, Narragansett Bay, Massachusetts (sub), Tide feet



Tide / Current for Westport River Entrance, Massachusetts Current
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Westport River Entrance
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Sat -- 03:15 AM EST     2.03 knots Max Flood
Sat -- 03:21 AM EST     Moonrise
Sat -- 05:30 AM EST     -0.00 knots Slack
Sat -- 06:58 AM EST     Sunrise
Sat -- 08:00 AM EST     -2.44 knots Max Ebb
Sat -- 12:06 PM EST     0.00 knots Slack
Sat -- 01:55 PM EST     Moonset
Sat -- 03:41 PM EST     2.10 knots Max Flood
Sat -- 04:14 PM EST     Sunset
Sat -- 05:59 PM EST     -0.01 knots Slack
Sat -- 08:23 PM EST     -2.29 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Westport River Entrance, Massachusetts Current, knots
12
am
0.3
1
am
0.9
2
am
1.6
3
am
2
4
am
1.8
5
am
0.8
6
am
-0.8
7
am
-2
8
am
-2.4
9
am
-2.1
10
am
-1.5
11
am
-0.8
12
pm
-0.1
1
pm
0.7
2
pm
1.4
3
pm
1.9
4
pm
2.1
5
pm
1.4
6
pm
-0
7
pm
-1.5
8
pm
-2.2
9
pm
-2.2
10
pm
-1.6
11
pm
-0.9




Weather Map
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GEOS Local Image of Northeast   
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Boston, MA,



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