Harwich Port, MA Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Harwich Port, MA

June 15, 2024 12:42 AM EDT (04:42 UTC) Change Location
Sunrise 5:04 AM   Sunset 8:19 PM
Moonrise 2:02 PM   Moonset 1:19 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- 1005 Pm Edt Fri Jun 14 2024

Overnight - SW winds around 10 kt with gusts up to 20 kt, becoming w. Seas around 2 ft. Wave detail: sw 1 foot at 3 seconds and se 1 foot at 8 seconds. Showers. A slight chance of tstms with vsby 1 to 3 nm.

Sat - N winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave detail: N 2 ft at 3 seconds and se 1 foot at 8 seconds. A chance of showers in the morning with vsby 1 to 3 nm.

Sat night - N winds 5 to 10 kt. Gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave detail: se 2 ft at 9 seconds and N 1 foot at 4 seconds.

Sun - N winds around 10 kt, becoming E in the afternoon. Seas 2 to 3 ft. Wave detail: se 2 ft at 9 seconds and N 1 foot at 3 seconds.

Sun night through Mon night - SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave detail: S 2 ft at 3 seconds and ne 1 foot at 4 seconds.

Tue through Wed night - SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave detail: sw 2 ft at 3 seconds and se 1 foot at 6 seconds.
winds and seas higher in and near tstms.
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 1005 Pm Edt Fri Jun 14 2024

Synopsis for massachusetts and rhode island coastal waters - Cold front moves across the waters overnight. High pressure builds over new england Saturday and Sunday, and then moves offshore Monday.


7 Day Forecast for Marine Location Near Harwich Port, MA
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Area Discussion for - Boston, MA
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FXUS61 KBOX 150214 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 1014 PM EDT Fri Jun 14 2024

SYNOPSIS
Second round of strong to severe thunderstorms expected through early tonight ahead of a dry and pleasant Father's Day weekend.
Several days of excessive heat and humidity are likely starting Tuesday and lasting through next Friday.

NEAR TERM /UNTIL 6 AM SATURDAY MORNING/
10 PM Update:

A new area of thunderstorms that formed over the Berkshires is now moving east feeding on the last of the MLCAPE for the day.
SPC meso analysis suggest 500-1000J/kg of MLCAPE still exists over central CT and MA, but quickly drops to below 500 J/kg east RI. Not expecting any severe wind gusts with these cells as they are no longer surface based. There will be heavy rain, lightning, and possibly pea sized hail with these cells as they move east. Further south over long island, convection has decayed into steady rain with embedded thunder. This will continue to ride the front east towards the Cape and Islands.
Radar does show some messy convection near Cape Cod and the Islands, but has not proven to be strong enough to produce anything more then a couple rumbles of thunder.

SHORT TERM /6 AM SATURDAY MORNING THROUGH SATURDAY NIGHT/
Departing cold front/deep digging shortwave will allow very, at least for June, dry air to filter into the region on NW/N flow tomorrow. PWATs are expected to drop to around 0.4" by 18/21Z Saturday, yielding a gorgeous, comfortable start to Father's day weekend. Little cloud cover is expected, with dewpoints dropping into the low and mid 40s by early evening. 850mb temperatures between 8-10C will support highs in the mid 70s to low 80s.

Radiational cooling will be in play Saturday night. With very dry airmass in place and mainly clear skies overhead, as well as slackening winds, it is quite possible that low temperatures drop into the low to mid 40s across northwestern MA by daybreak on Sunday. Urban heat islands, like Boston and Hartford, will remain our most mild localities, with lows around 60F expected.
Temperatures across the coastal plain will fall back into the 50s. This is our last shot of cool air for quite some time as mid level ridging starts to build in to end the weekend.

LONG TERM /SUNDAY THROUGH FRIDAY/
Key Point:

* Several days of dangerous heat/humidity Tue-Fri

Big story for next week continues to be likelihood of dangerous heat and humidity starting Tue and peaking Wed-Fri. Ensembles are in very good agreement on building strong upper ridge over eastern U.S.
through most of next week which lends increasing confidence. In fact, 500 mb heights nearing 600 dm is something rarely seen in the Northeast and is a very strong signal for record heat. This aligns with EPS and NAEFS Situational Awareness Tables which show several parameters outside of model climatology relating to temperature, signaling potential for a highly unusual event.

We're also seeing fairly high chances of afternoon highs well into 90s Tue-Fri, if not near 100 in some spots. More importantly, daytime heat indices may reach as high as 105 degrees and there will be little relief at night with nighttime heat indices in 70s.

Upper ridge also favors dry weather for much of next week, but it's possible we see widely scattered showers/storms, especially in Thu- Fri timeframe as cold front approaches from Great Lakes.

AVIATION /02Z SATURDAY THROUGH WEDNESDAY/
Forecast Confidence Levels:

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

00z TAF Update: High confidence (70%)

Area of showers/storms moving through eastern MA/RI moves offshore early this evening, but another round of showers with embedded thunder should cross southern New England 02z-08z as cold front pushes through. Expect brief lowering to MVFR/IFR.

Otherwise VFR ceilings should prevail through tonight as SW winds veer to W-NW and N overnight, except IFR/LIFR is likely to develop near Cape Cod and Islands. Slow improvement Sat morning with VFR-MVFR ceilings gradually scattering out Sat afternoon as N winds increase to 10-20kt with gusts to 25kt near coast.

KBOS TAF...High confidence in TAF (70%).

KBDL TAF...High confidence in TAF (70%)

Outlook /Sunday through Wednesday/...

Sunday through Sunday Night: VFR.

Monday: VFR. Breezy.

Monday Night through Juneteenth: VFR.

MARINE
Forecaster Confidence Levels:

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

Tonight:

Steady light to moderate rain with embedded thunder possible.
Winds shift WNW and decrease to 5-10 knots overnight. Seas 2-3 feet.

Tomorrow:

Rain tapers off in the morning with clearing conditions in the afternoon. Winds turn north and gust 15 to 20mph. Seas 2-4 feet.

Tomorrow Night:

Clear conditions and generally light winds. Seas around 2-4 feet.

Outlook /Sunday through Wednesday/...

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

Sunday Night through Monday: Winds less than 25 kt.

Monday Night: Winds less than 25 kt. Slight chance of rain showers.

Tuesday through Juneteenth: Winds less than 25 kt.

CLIMATE
Daily Record High Temperatures...

Tuesday, June 18th

BOS - 94F (1929)
BDL - 95F (1994)
PVD - 94F (1929)
ORH - 93F (1929)

Wednesday, June 19th

BOS - 96F (1923)
BDL - 95F (1995)
PVD - 94F (1923)
ORH - 93F (1923)

Thursday, June 20th

BOS - 98F (1953)
BDL - 97F (2012)
PVD - 95F (1941)
ORH - 93F (1953)

Last Day of 100F (or greater)

BOS - 100F (07/24/2022)
BDL - 100F (07/21/2019)
PVD - 100F (07/28/2020)
ORH - 102F (07/04/1911)

BOX WATCHES/WARNINGS/ADVISORIES
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory until 11 PM EDT this evening for ANZ250- 254.




Weather Reporting Stations
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Stations Dist Age Wind AirWater WavesinHgDewPt
CHTM3 10 mi55 min 29.88
44020 - NANTUCKET SOUND 13 mi33 minSW 9.7G12 67°F 67°F29.8766°F
NTKM3 - 8449130 - Nantucket Island, MA 20 mi55 minSSW 5.1G6 70°F29.89
44090 24 mi73 min 63°F 62°F2 ft
BZBM3 - 8447930 - Woods Hole, MA 33 mi55 min 66°F29.89
44018 - SE Cape Cod 30NM East of Nantucket, MA 44 mi63 min 62°F3 ft
NBGM3 46 mi55 minWSW 8G12 29.89


Wind History for Nantucket Island, MA
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
KCQX CHATHAM MUNI,MA 9 sm18 minSW 0510 smOvercast66°F63°F88%29.89
KHYA BARNSTABLE MUNIBOARDMAN/POLANDO FIELD,MA 14 sm46 minSW 1110 smOvercast Lt Rain 66°F64°F94%29.86
KACK NANTUCKET MEMORIAL,MA 22 sm49 minSW 0610 smOvercast64°F63°F94%
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Wind History graph: CQX
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Tide / Current for Monomoy Point, Cape Cod, Massachusetts
   
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Monomoy Point
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Fri -- 12:09 AM EDT     0.77 feet Low Tide
Fri -- 01:01 AM EDT     Moonset
Fri -- 01:19 AM EDT     First Quarter
Fri -- 05:05 AM EDT     Sunrise
Fri -- 06:29 AM EDT     3.47 feet High Tide
Fri -- 12:37 PM EDT     0.56 feet Low Tide
Fri -- 01:01 PM EDT     Moonrise
Fri -- 07:06 PM EDT     3.44 feet High Tide
Fri -- 08:15 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Monomoy Point, Cape Cod, Massachusetts, Tide feet
12
am
0.8
1
am
0.9
2
am
1.3
3
am
1.8
4
am
2.5
5
am
3.1
6
am
3.4
7
am
3.4
8
am
3.1
9
am
2.5
10
am
1.8
11
am
1.1
12
pm
0.7
1
pm
0.6
2
pm
0.9
3
pm
1.4
4
pm
2
5
pm
2.7
6
pm
3.2
7
pm
3.4
8
pm
3.3
9
pm
2.9
10
pm
2.3
11
pm
1.6


Tide / Current for Pollock Rip Channel, Massachusetts Current
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Pollock Rip Channel
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Fri -- 01:01 AM EDT     Moonset
Fri -- 01:12 AM EDT     1.57 knots Max Flood
Fri -- 01:19 AM EDT     First Quarter
Fri -- 04:08 AM EDT     -0.00 knots Slack
Fri -- 05:05 AM EDT     Sunrise
Fri -- 06:50 AM EDT     -1.40 knots Max Ebb
Fri -- 09:55 AM EDT     0.00 knots Slack
Fri -- 01:01 PM EDT     Moonrise
Fri -- 01:35 PM EDT     1.81 knots Max Flood
Fri -- 04:41 PM EDT     -0.00 knots Slack
Fri -- 07:28 PM EDT     -1.47 knots Max Ebb
Fri -- 08:15 PM EDT     Sunset
Fri -- 10:37 PM EDT     0.00 knots Slack
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
1.4
1
am
1.6
2
am
1.5
3
am
1
4
am
0.1
5
am
-0.7
6
am
-1.3
7
am
-1.4
8
am
-1.2
9
am
-0.7
10
am
0.1
11
am
0.8
12
pm
1.4
1
pm
1.8
2
pm
1.8
3
pm
1.4
4
pm
0.7
5
pm
-0.3
6
pm
-1.1
7
pm
-1.4
8
pm
-1.4
9
pm
-1.1
10
pm
-0.5
11
pm
0.3


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Boston, MA,




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