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

June 16, 2024 9:15 AM EDT (13:15 UTC) Change Location
Sunrise 5:05 AM   Sunset 8:25 PM
Moonrise 3:10 PM   Moonset 1:41 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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ANZ230 Boston Harbor- 705 Am Edt Sun Jun 16 2024

Today - N winds 5 to 10 kt, becoming E this afternoon. Waves 1 foot or less.

Tonight - S winds 5 to 10 kt, becoming sw after midnight. Waves 1 foot or less.

Mon - S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 1 foot or less, then around 2 ft in the afternoon.

Mon night - SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft.

Tue and Tue night - SW winds 5 to 10 kt. Waves around 2 ft.

Wed through Thu night - SW winds 10 to 15 kt with gusts up to 20 kt. Waves 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 705 Am Edt Sun Jun 16 2024

Synopsis for massachusetts and rhode island coastal waters - Tranquil boating conditions continue today as high pressure remains overhead. Winds begin to increase out of the south on Monday with gusts up to 20-25 knots. High pressure remains to the east much of the week with ssw winds.


7 Day Forecast for Marine Location Near Cambridge, MA
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Area Discussion for - Boston, MA
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FXUS61 KBOX 161012 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 612 AM EDT Sun Jun 16 2024

SYNOPSIS

High pressure will bring dry and pleasant Father's Day.
Dangerous heat and humidity arrives on Tuesday and peak in the Wednesday through Friday time frame. Near to record breaking high temperatures are possible with afternoon Heat Indices between 95 and 105 degrees. Not much relief at night with near record breaking warmest low temperatures and heat indices still in the 70s.

NEAR TERM /UNTIL 6 PM THIS EVENING/

610 AM Update...

* Plenty of sunshine with highs mainly in the middle-upper 70s but upper 60s to lower 70s on the immediate eastern MA coast

Upper level ridge and high pressure continues to build into the region from the west. A passing weak 500mb shortwave will bring some high clouds and filtered sunshine to the region late in the day. All in all, today will be another gorgeous day with highs mainly in the middle to upper 70s...but developing sea breezes will hold afternoon highs in the upper 60s to lower 70s along portions of the immediate coast.. Dewpoints mainly in the 40s will make it feel very comfortable this afternoon. Winds will also be also be light as they turn from northerly to southerly late in the day. Sea breezes along the coast will develop this morning into the afternoon.

SHORT TERM /6 PM THIS EVENING THROUGH 6 PM MONDAY/

Tonight:

High pressure remains over the region leading to another night of good radiational cooling. Clear skies and light winds will allow for overnight lows to drop into the low 50s. The only thing keeping the region from dropping into the 40s again is dewpoints will be on the rise due to light southerly flow. With rising dewpoints, there could be isolated patches of fog overnight.

Tomorrow:

Upper level ridge continues to build over the region with high pressure still overhead. 850mb temps will be on the rise to +15C ahead of the dangerous heat and humidity expected mid week. Winds at the surface will also continue to increase out of the south at 10 to 15 mph, gusting 20-25 mph. This will bring high temperatures back up into the low to mid 80s with dewpoints in the low 60s. Winds should be strong enough to keep sea breezes at bay except near the south coast where southerly winds will enhance the sea breeze and bring cooler daytime temps in the 70s to southern RI and SE MA.

LONG TERM /MONDAY NIGHT THROUGH SATURDAY/

Key Points...

* Dangerous Heat & Humidity Tue through Fri...Near Record High Temps * Excessive Heat Watch Issued...Potential for Heat Indices of 105+ * Main risk for scattered showers/t-storms Fri and/or next weekend

Details...

All the model guidance continues to be very consistent and in excellent agreement on dangerous heat and humidity beginning Tuesday...peaking in the Wed through Fri time frame. The models indicate 500 mb height fields approaching 600 dm...which is rarely seen in our region and a strong signal for the potential of record heat. This is also supported by the NAEFS & EPS Situational Awareness tables...which indicates several parameters outside the models climatology. That is another strong signal for the potential of a rare/highly unusual weather event...in this case being heat and humidity.

The ensemble guidance supports near record highs well into the 90s...perhaps touching 100 degrees in spots. If that were to occur...we would challenge all time record highs for the month of June in spots. The only possible relief would be if localized sea breeze are able to develop along portions of the very immediate coast
Either way
the main story will be several days of dangerous heat & humidity. Afternoon Heat Indices will reach into the 95 to 105+ degree range. There will not be much relief at night with heat indices only dropping into the 70s.

We opted to issue an Excessive Heat Watch in the Tue through Fri time frame for the Lower CT River Valley as well as the lower elevations of northeast MA/Merrimack Valley away from the immediate coast. This is where our confidence is highest in the potential for 105+ Heat Indices. This Watch might certainly need to be expanded in later forecasts...but at the very least Heat Advisories will eventually be needed away from the immediate south coast, Cape/Islands.

The strong upper level ridge will tend to result in mainly dry weather for much of the week
That being said
given near record high temps we can not rule out mainly diurnally driven widely scattered showers/t-storms. The main threat though for scattered showers/t-storms will not arrive until Fri and/or next weekend depending on when a cold front drops south into the region.

AVIATION /10Z SUNDAY THROUGH THURSDAY/

Forecast Confidence Levels:

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

12z TAF Update...

Today: High Confidence.

VFR. Light northerly winds early this morning becoming light S by early afternoon. Localized sea breezes develop near the coasts.

Tonight: High Confidence

VFR, calm/light southerly winds. Low chance for patchy fog to develop.

Tomorrow:

VFR. Increasing southerly winds at 10-15 knots, gusting 20-25 knots. Diurnal cumulus deck likely forms in the afternoon but stays near or above 5kft

KBOS TAF...High confidence in TAF.

Light N winds shift to the NE and then a traditional E/ESE sea breeze by early afternoon.

KBDL TAF...High confidence in TAF.

Outlook /Monday Night through Thursday/...

Monday Night through Tuesday: VFR. Breezy.

Tuesday Night: VFR.

Juneteenth: Mainly VFR, with local MVFR possible. Breezy.
Slight chance SHRA, slight chance TSRA.

Wednesday Night: VFR. Breezy.

Thursday: Mainly VFR, with local MVFR possible. Breezy. Slight chance SHRA, slight chance TSRA.

MARINE

Forecaster Confidence Levels:

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

Today and tonight

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

Monday:

Continued clear conditions with increasing southerly winds at 10-15 knots, gusting 20-25 knots.

Outlook /Monday Night through Thursday/...

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

Tuesday through Wednesday Night: Winds less than 25 kt.

Thursday: Winds less than 25 kt. Slight chance of rain showers, slight chance of thunderstorms.

CLIMATE
All Time June High Temperature Record (Daily)

BOS - 100 F (06/06/1925, 06/26/1952 and 06/30/2021)
BDL - 100 F (06/26/1952, 06/30/1964)
PVD - 98 F (06/25/1943, 06/15/1945 and 06/30/1945)
ORH - 98 F (06/26/1952)

Most recent day of 100 F (or greater)

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

* For ORH this is the only 100+ degree day in its period of record.

Daily High Temperature Records...

June 18th

BOS - 94 F (1907 and 1929)
BDL - 95 F (1957 and 1994)
PVD - 94 F (1929)
ORH - 93 F (1907 and 1929)

June 19th

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

June 20th

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

June 21st

BOS - 96 F (2012)
BDL - 96 F (1953 and 2012)
PVD - 96 F (1941)
ORH - 91 F (Multi-Years)

Daily Warmest Low Temperatures Records...

June 18th

BOS - 72 F (1929)
BDL - 70 F (1905)
PVD - 72 F (1929)
ORH - 69 F (1905 and 1994)

June 19th

BOS - 73 F (1995)
BDL - 72 F (1929)
PVD - 70 F (1995)
ORH - 72 F (1929)

June 20th

BOS - 78 F (1931)
BDL - 74 F (1931)
PVD - 74 F (1931)
ORH - 72 F (1931)

June 21st

BOS - 80 F (2012)
BDL - 73 F (1923 and 2012)
PVD - 75 F (2012)
ORH - 74 F (1923 and 2012)

BOX WATCHES/WARNINGS/ADVISORIES
CT...Excessive Heat Watch from Tuesday afternoon through Friday evening for CTZ002-003.
MA...Excessive Heat Watch from Tuesday afternoon through Friday evening for MAZ003-005-006-010-011-013-014.
RI...None.
MARINE...None.




Weather Reporting Stations
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Stations Dist Age Wind AirWater WavesinHgDewPt
BHBM3 - 8443970 - Boston, MA 3 mi46 min 62°F 30.27
44013 - BOSTON 16 NM East of Boston, MA 24 mi26 minN 9.7G14 60°F 63°F2 ft30.2851°F
44029 - Buoy A0102 - Mass. Bay/Stellwagen 31 mi132 minN 12G16 61°F 62°F2 ft30.24
FOXR1 - 8454000 - Providence, RI 41 mi46 minNNE 7G9.9 63°F 63°F30.27
PVDR1 42 mi46 minNNE 6G9.9 65°F 30.2844°F
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 45 mi46 minNE 6G8 64°F 30.27
FRVM3 - 8447386 - Fall River, MA 45 mi46 min 65°F 68°F30.27
CPTR1 - 8452944 - Conimicut Light, RI 46 mi46 minN 9.9G12 63°F 69°F30.27
FRXM3 46 mi46 min 64°F 47°F
IOSN3 - Isle of Shoals, NH 49 mi76 minNNW 5.1G5.1 56°F 30.2541°F


Wind History for Providence, RI
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Airport Reports
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Wind History graph: BOS
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Tide / Current for Dover St. Bridge, Fort Point Channel, Boston, Massachusetts
   
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Dover St. Bridge
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Sun -- 01:33 AM EDT     1.86 feet Low Tide
Sun -- 01:40 AM EDT     Moonset
Sun -- 05:06 AM EDT     Sunrise
Sun -- 07:42 AM EDT     8.51 feet High Tide
Sun -- 01:49 PM EDT     1.80 feet Low Tide
Sun -- 03:09 PM EDT     Moonrise
Sun -- 08:06 PM EDT     9.25 feet High Tide
Sun -- 08:23 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Dover St. Bridge, Fort Point Channel, Boston, Massachusetts, Tide feet
12
am
3.1
1
am
2
2
am
2
3
am
2.7
4
am
3.9
5
am
5.5
6
am
7.1
7
am
8.3
8
am
8.5
9
am
7.8
10
am
6.6
11
am
5.1
12
pm
3.5
1
pm
2.2
2
pm
1.8
3
pm
2.5
4
pm
3.7
5
pm
5.3
6
pm
7.1
7
pm
8.6
8
pm
9.2
9
pm
8.9
10
pm
7.8
11
pm
6.3


Tide / Current for Boston Harbor, Massachusetts Current
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Boston Harbor
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Sun -- 01:30 AM EDT     0.00 knots Slack
Sun -- 01:40 AM EDT     Moonset
Sun -- 04:47 AM EDT     0.83 knots Max Flood
Sun -- 05:06 AM EDT     Sunrise
Sun -- 07:17 AM EDT     -0.00 knots Slack
Sun -- 11:47 AM EDT     -0.93 knots Max Ebb
Sun -- 01:47 PM EDT     0.00 knots Slack
Sun -- 03:08 PM EDT     Moonrise
Sun -- 05:07 PM EDT     0.92 knots Max Flood
Sun -- 07:43 PM EDT     -0.00 knots Slack
Sun -- 08:22 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Boston Harbor, Massachusetts Current, knots
12
am
-0.9
1
am
-0.4
2
am
0.3
3
am
0.7
4
am
0.8
5
am
0.8
6
am
0.6
7
am
0.1
8
am
-0.3
9
am
-0.5
10
am
-0.7
11
am
-0.9
12
pm
-0.9
1
pm
-0.6
2
pm
0.2
3
pm
0.7
4
pm
0.8
5
pm
0.9
6
pm
0.8
7
pm
0.3
8
pm
-0.1
9
pm
-0.4
10
pm
-0.7
11
pm
-0.9


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Boston, MA,




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