Barnstable Town, MA Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Barnstable Town, MA

May 17, 2024 7:59 PM EDT (23:59 UTC) Change Location
Sunrise 5:17 AM   Sunset 7:58 PM
Moonrise 2:14 PM   Moonset 2:40 AM 
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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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ANZ232 Nantucket Sound- 703 Pm Edt Fri May 17 2024

Tonight - NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave detail: ne 4 ft at 6 seconds. Patchy fog. A chance of rain. Vsby 1 nm or less after midnight.

Sat - NE winds around 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave detail: ne 4 ft at 7 seconds. Patchy fog. A chance of rain in the morning. Vsby 1 nm or less, increasing to 1 to 3 nm in the afternoon.

Sat night - NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave detail: N 3 ft at 6 seconds. Patchy fog. A chance of rain. Vsby 1 to 3 nm.

Sun - NE winds around 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave detail: N 3 ft at 5 seconds. Patchy fog in the morning with vsby 1 to 3 nm.

Sun night and Mon - NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave detail: ne 3 ft at 5 seconds.

Mon night - E winds 5 to 10 kt, becoming S after midnight. Seas around 2 ft. Wave detail: E 2 ft at 8 seconds.

Tue through Wed night - SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft.
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 703 Pm Edt Fri May 17 2024

Synopsis for massachusetts and rhode island coastal waters - Shower chances increase overnight tonight and Saturday as low pressure shifts back north. High pressure builds in late this weekend with dry conditions persisting through early next week.


7 Day Forecast for Marine Location Near Barnstable Town, MA
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Area Discussion for - Boston, MA
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FXUS61 KBOX 172330 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 730 PM EDT Fri May 17 2024

SYNOPSIS
Increasing clouds with onshore winds and spotty light rain/drizzle for much of southern New England tonight. Cool and cloudy with light rain/drizzle for much of the region on Saturday. We are then looking at a prolonged spell of dry weather with warming temperatures starting Sunday and continuing through Wednesday. High temperatures could approach the mid 80s by Tuesday and/or Wednesday in interior Southern New England, with temperatures in the 70s near the coasts. Our next chance for rains doesn't appear until around Thursday.

NEAR TERM /UNTIL 6 AM SATURDAY MORNING/
Highlights

* Increasing clouds with spotty light rain/drizzle spreading in from SE to NW. Best shots across central MA/RI eastward.

Ridge axis in place offshore of the Mid Atlantic this evening with a cutoff just south of Nova Scotia and a shortwave over the eastern Great Lakes. The ridge gets flatten out as the shortwave lifts into Upstate New York late tonight. The cutoff becomes an open wave as it lifts to the southeast of Nova Scotia. A broad low will continue to rotate well to the SE of the Cape/Islands, but will meander northwestward this evening. Portions of our interior will have a weak high nudging in.

Main concern in the near term is the increasing cloud cover along with spotty drizzle/light rain spreading in from SE to NW tonight. Will see our PWATs surging across central MA/RI into eastern MA to 1-1.25 inches with E/SE flow aloft. This in combination with the increasing low level moisture and the broad low meandering toward us could squeeze out some light rain/drizzle. Guidance tends to struggle in more weakly forced situations like this, but there is a pretty good consensus for light precip across eastern MA, but more uncertainty as you spread inland. Have kept chances of precip along the immediate coast and lower shots further inland. Given the weak forcing am not anticipating much other than perhaps a few hundredths of QPF.

Overnight low temperatures are roughly around seasonable levels, which is right around 50 degrees.

SHORT TERM /6 AM SATURDAY MORNING THROUGH SATURDAY NIGHT/
Highlights

* Dreary Saturday with spotty light rain/drizzle and unseasonably cool.

* Still unsettled with spotty light rain/drizzle Saturday night.

Shortwave trough will be working its way through New England Sat. Think it cuts off just east of our region heading into Sun, which will keep us unsettled. Broad area of low pressure remains southeast of our region Sat and Sat night. Portions of the interior may see a weak high nudging in.

As previous shift mentioned a tricky forecast for Sat. Though am leaning toward the latest ECMWF and solutions similar to it. The reason being is in these blocked flow type patterns the ECMWF tends to break things up much slower than other guidance sources, which tends to be closer to reality. Based on this am anticipating a cloudy and dreary Sat for southern New England.
Will have persistent NE to NNE winds through this period. Should see an abundance of low level moisture per RH values in the 1000-850 hPa layer per all guidance. Some hints that there could be some breaks in the clouds due to the weak high nudging in for portions of the interior, but not super optimistic about it given the low level RH fields.

Should see isolated to scattered light rain/drizzle across much of southern New England on Sat. Will have PWAT values of roughly 1-1.5 inches. This plume may slide further offshore Sat night, which could potentially bring a break in activity for portions of the interior. Have kept fairly widespread slight chance to chances of precip with the best shots across eastern areas.
Again though have leaned fairly heavily on the ECMWF, which is much slower to improve conditions. We will also have a northeasterly oriented 20-30 kt LLJ which given the weak forcing should be enough for some light rain/drizzle. Given the cloudier forecast did significantly lower our highs on Sat.
Think for most will be unseasonably cool with widespread 50 degree highs. Think the best shot for low/mid 60s is across the CT River Valley. Will be quite similar temp wise Sat Night as tonight with lows around 50.

LONG TERM /SUNDAY THROUGH FRIDAY/
Key messages...

* Dry weather is expected through at least the middle of next week.

* After a slightly cooler than average weekend a big warm-up arrives for early next week with 80s possible by Tuesday and Wednesday, potentially into Thursday.

Details...

Sunday...

The trend is our friend as we go into the second half of the weekend, with high pressure nudging closer bringing less cloudiness and warming temperatures compared to Saturday. Northeast flow off the ocean will continue to keep temperatures cooler along the east coast (upper 50s) but typical locations further west like the CT Valley will reach the low 70s.

Monday through Wednesday...

The first three to four days of next week will offer a stretch of summer-like weather the likes of which we haven't seen much of so far this year. At the surface high pressure continues to move overhead, eventually turning winds out of the SW by Tuesday. So, while increasing sun/insolation on MOnday along with a warming airmass will lead to warmer temps, in the mid to upper 70s, the heat arrives in earnest for Tuesday and Wednesday. This is when SW flow and 850 mb temps jumping from +10C on Monday to +15C on Tuesday will lead to widespread temperatures in the low to mid 80s. The coolest spots will be areas along and adjacent to the south coast, especially Cape Cod where temps remain in the low to mid 60s.

Late week...

The warm and dry pattern may break down by Thursday as a mid level shortwave and surface cold front approach bringing the return of rain chances to the forecast, but timing and other details remain uncertain.

AVIATION /00Z SATURDAY THROUGH WEDNESDAY/
Forecast Confidence Levels:

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

Tonight... Moderate confidence

VFR to start away from the Cape/Islands where MVFR/IFR conditions persist. Will see this MVFR/IFR stratus spread northwestward as the night progresses. Though think IFR with localized LIFR remains generally ORH-BVY-WST eastward. Will have spotty rain/drizzle with this stratus. Persistent NE flow at 5-15 kts. Could see some gusts of 20-25 kts across the Cape/Islands.

Saturday...Moderate confidence.

MVFR to IFR conditions persisting with localized LIFR across the Cape/Islands. Think that the CT River Valley could break out to VFR toward 18Z. Will have persistent NE winds at 5-15 kts with a few gusts up to 20 kts along the immediate east coast. Spotty rain/drizzle throughout the day.

Saturday Night...Moderate confidence.

MVFR to IFR conditions persist due to pesky onshore flow. Could also have some spotty localized LIFR condition. Light rain and drizzle continues with the best shot along the immediate coastline. Winds NNE to NE at 5-15 kts with a few gusts up to 20 kts toward daybreak along the Cape/Islands.

KBOS TAF...High confidence in TAF through 00Z. Moderate after this time.

VFR with NE winds at 10-15 kts through roughly 02Z. Will see ceilings lowering to MVFR/IFR tonight with drizzle/rain spreading in toward 03-06Z. Light rain/drizzle persistent through Sat with NE winds and IFR conditions.

KBDL TAF...High confidence in TAF.

VFR this afternoon and this evening. Could see some borderline MVFR ceilings spread in late tonight, but better shot comes Sat AM and persists through the afternoon. Could see some spotty rain/drizzle on Sat.

Outlook /Sunday through Wednesday/...

Sunday: Mainly VFR, with local IFR possible. Breezy.

Sunday Night through Monday: Mainly VFR, with local MVFR possible.

Monday Night through Tuesday Night: VFR.

Wednesday: VFR. Breezy.

MARINE
Forecaster Confidence Levels:

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

Extended the SCA for the eastern outer waters through 12Z Sun for elevated seas.

Tonight...High confidence.

Winds remain out of the NE at 10-20 kts with some 20-25 kt gusts this evening. Stratus/fog along with light rain/drizzle across the waters. Visibilities of 1/2 to 4 SM with the lowest near and southeast of Nantucket. Seas 1-3 ft across the inner waters and 4-7 ft for the outer.

Saturday... High confidence.

Scattered light rain and drizzle across the waters. Will have visibilities of 3-5 SM. Persistent 15-20 kts out of the NE with gusts up to 20 kts. Seas 1-4 ft across the interior waters and 4-6 ft for the outer.

Saturday Night...Moderate confidence.

Scattered light rain and drizzle anticipated to persist. Though some uncertainty on this. Will continue to see NE winds at 10-15 kts and gusts around 20 kts. Visibilities of 3-5 SM and seas 3-6 ft for the outer waters.

Outlook /Sunday through Wednesday/...

Sunday through Sunday Night: Winds less than 25 kt. Seas up to 5 ft.

Monday through Monday Night: Winds less than 25 kt. Areas of seas approaching 5 ft.

Tuesday: Winds less than 25 kt. Seas locally approaching 5 ft.

Tuesday Night through Wednesday: Winds less than 25 kt.

BOX WATCHES/WARNINGS/ADVISORIES
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory until 8 AM EDT Sunday for ANZ250-254.
Small Craft Advisory until 8 PM EDT Saturday for ANZ255-256.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
44020 - NANTUCKET SOUND 9 mi50 min N 14G18 57°F 56°F29.9352°F
44090 15 mi60 min 53°F 54°F2 ft
CHTM3 19 mi72 min 54°F 58°F29.95
BZBM3 - 8447930 - Woods Hole, MA 20 mi72 min 58°F 56°F29.96
NTKM3 - 8449130 - Nantucket Island, MA 26 mi72 min NNE 9.9G16 54°F 58°F29.93
NBGM3 32 mi72 min NE 7G15 59°F 29.98
44018 - SE Cape Cod 30NM East of Nantucket, MA 40 mi80 min 52°F5 ft
44085 42 mi60 min 56°F 52°F3 ft
BUZM3 - Buzzards Bay, MA 42 mi60 min NE 17G18 56°F 29.96
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 46 mi72 min NE 8.9G12 62°F 29.97
FRVM3 - 8447386 - Fall River, MA 46 mi72 min 63°F 54°F29.99
FRXM3 46 mi72 min 62°F 48°F


Wind History for Nantucket Island, MA
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KHYA BARNSTABLE MUNIBOARDMAN/POLANDO FIELD,MA 3 sm63 minN 0910 smOvercast55°F48°F77%29.94
KFMH CAPE COD COAST GUARD AIR STATION,MA 11 sm74 minNE 11G1710 smOvercast55°F50°F82%29.96
KCQX CHATHAM MUNI,MA 17 sm67 minNNE 09G1610 smOvercast55°F46°F72%29.95
KMVY MARTHA'S VINEYARD,MA 23 sm66 minN 12G1910 smOvercast59°F48°F67%29.94
Link to 5 minute data for KHYA


Wind History from HYA
(wind in knots)
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Tide / Current for Hyannis Port, Nantucket Sound, Massachusetts
   
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Hyannis Port
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Fri -- 01:43 AM EDT     0.63 feet Low Tide
Fri -- 02:40 AM EDT     Moonset
Fri -- 05:19 AM EDT     Sunrise
Fri -- 08:32 AM EDT     2.86 feet High Tide
Fri -- 02:13 PM EDT     Moonrise
Fri -- 02:14 PM EDT     0.45 feet Low Tide
Fri -- 07:56 PM EDT     Sunset
Fri -- 09:07 PM EDT     2.87 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Hyannis Port, Nantucket Sound, Massachusetts, Tide feet
12
am
1.2
1
am
0.7
2
am
0.6
3
am
0.8
4
am
1.1
5
am
1.5
6
am
2
7
am
2.5
8
am
2.8
9
am
2.8
10
am
2.5
11
am
2
12
pm
1.3
1
pm
0.7
2
pm
0.5
3
pm
0.5
4
pm
0.8
5
pm
1.1
6
pm
1.6
7
pm
2.2
8
pm
2.7
9
pm
2.9
10
pm
2.7
11
pm
2.3


Tide / Current for Pollock Rip Channel, Massachusetts Current
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Pollock Rip Channel
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Fri -- 02:38 AM EDT     Moonset
Fri -- 02:56 AM EDT     1.62 knots Max Flood
Fri -- 05:18 AM EDT     Sunrise
Fri -- 05:46 AM EDT     -0.00 knots Slack
Fri -- 08:37 AM EDT     -1.37 knots Max Ebb
Fri -- 11:36 AM EDT     0.00 knots Slack
Fri -- 02:12 PM EDT     Moonrise
Fri -- 03:18 PM EDT     1.87 knots Max Flood
Fri -- 06:18 PM EDT     -0.00 knots Slack
Fri -- 07:54 PM EDT     Sunset
Fri -- 09:14 PM EDT     -1.48 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Pollock Rip Channel, Massachusetts Current, knots
12
am
0.4
1
am
1.1
2
am
1.5
3
am
1.6
4
am
1.4
5
am
0.7
6
am
-0.2
7
am
-0.9
8
am
-1.3
9
am
-1.3
10
am
-1.1
11
am
-0.5
12
pm
0.3
1
pm
1
2
pm
1.6
3
pm
1.8
4
pm
1.8
5
pm
1.2
6
pm
0.3
7
pm
-0.6
8
pm
-1.2
9
pm
-1.5
10
pm
-1.4
11
pm
-0.9


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Boston, MA,




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