Plum Island Sound, South End, MA

Day	High / Low	Precip	Wind	Humidity
Sat Sep 26	Heavy Rain/Wind Close Hourly	-º / 57º	100%	NE 30 mph	92%
10pm	Rain/Wind	59º	91%	NE 30 mph	90%
11pm	Rain/Wind	58º	80%	NE 32 mph	92%
Sun Sep 27	Rain/Wind View Hourly	60º / 54º	100%	NE 31 mph	94%
12am	Rain/Wind	58º	64%	NE 32 mph	92%
1am	Showers/Wind	58º	50%	NE 31 mph	92%
2am	Rain/Wind	58º	100%	NE 30 mph	91%
3am	Rain/Wind	58º	100%	NE 31 mph	92%
4am	Rain/Wind	59º	99%	NE 31 mph	91%
5am	Rain/Wind	58º	100%	NE 30 mph	94%
6am	Heavy Rain/Wind	58º	100%	NE 29 mph	94%
7am	Rain/Wind	58º	100%	NE 31 mph	96%
8am	Rain/Wind	58º	100%	NE 29 mph	95%
9am	Rain/Wind	59º	94%	NE 29 mph	94%
10am	Rain/Wind	60º	92%	NE 29 mph	93%
11am	Rain/Wind	60º	80%	NE 28 mph	94%
12pm	Rain/Wind	60º	72%	NE 28 mph	95%
1pm	Rain/Wind	60º	63%	NE 26 mph	94%
2pm	Rain/Wind	60º	62%	NE 25 mph	93%
3pm	Rain/Wind	60º	65%	NE 25 mph	93%
4pm	Rain/Wind	60º	82%	NE 24 mph	93%
5pm	Rain/Wind	60º	78%	NE 22 mph	92%
6pm	Rain/Wind	59º	83%	NE 23 mph	90%
7pm	Rain/Wind	59º	87%	NE 21 mph	93%
8pm	Rain/Wind	58º	88%	NE 20 mph	96%
9pm	Rain/Wind	57º	93%	NE 20 mph	97%
10pm	Rain/Wind	57º	90%	NE 20 mph	98%
11pm	Rain/Wind	57º	85%	NE 21 mph	99%
Mon Sep 28	Rain View Hourly	59º / 54º	91%	NE 20 mph	93%
12am	Rain/Wind	57º	90%	NE 20 mph	98%
1am	Rain/Wind	57º	75%	NE 20 mph	96%
2am	Showers/Wind	57º	57%	NE 20 mph	96%
3am	Showers/Wind	57º	59%	NE 20 mph	96%
4am	Rain/Wind	57º	86%	NE 20 mph	97%
5am	Rain/Wind	56º	86%	NE 20 mph	97%
6am	Rain/Wind	56º	82%	NE 20 mph	99%
7am	Rain/Wind	55º	88%	NE 20 mph	100%
8am	Rain/Wind	56º	92%	NE 20 mph	98%
9am	Rain/Wind	57º	89%	NE 20 mph	94%
10am	Rain/Wind	58º	88%	NE 20 mph	92%
11am	Rain/Wind	58º	91%	NE 20 mph	93%
12pm	Rain/Wind	58º	72%	NE 20 mph	93%
1pm	Rain/Wind	58º	79%	NE 20 mph	92%
2pm	Rain/Wind	58º	75%	NE 20 mph	91%
3pm	Showers/Wind	58º	59%	NE 20 mph	90%
4pm	Light Rain/Wind	58º	66%	NE 20 mph	91%
5pm	Rain	58º	78%	NNE 18 mph	90%
6pm	Rain	58º	75%	NNE 18 mph	90%
7pm	Rain	57º	82%	NNE 15 mph	92%
8pm	Rain	56º	76%	NNE 13 mph	96%
9pm	Rain	56º	75%	NNE 12 mph	98%
Tue Sep 29	AM Showers	62º / 55º	33%	N 9 mph	87%
Wed Sep 30	AM Clouds/PM Sun	68º / 55º	8%	SW 5 mph	79%
Thu Oct 1	Partly Cloudy	75º / 62º	8%	SW 9 mph	75%
Fri Oct 2	Partly Cloudy	75º / 56º	11%	W 10 mph	61%
Sat Oct 3	Partly Cloudy	65º / 50º	10%	NNW 9 mph	51%

Coastal Flood Warning - 2:08pm Sat Sep 26 2026

...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 8 PM EDT SUNDAY... ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT SUNDAY...

WHAT: For the Coastal Flood Warning, up to one foot of
inundation above ground level in low-lying areas near
shorelines and tidal waterways (3.9 to 12.6 feet Mean Lower
Low Water). For the High Surf Advisory, large breaking waves
of 6 to 15 feet in the surf zone.

WHERE: Eastern Essex MA, Suffolk MA, Eastern Norfolk MA,
Eastern Plymouth MA, Barnstable MA, Dukes MA and Nantucket MA
Counties.

WHEN: Until 8 PM EDT Sunday.

IMPACTS: Strong northeast winds with large waves will result in
minor coastal flooding with pockets of moderate coastal flooding
over multiple high tide cycles from late today through the
weekend. The water also may struggle to vacate the area after
the high tides given persistent strong northeast winds. The
greatest risk for coastal flooding appears to be setting up
south of Boston and onto the Cape and Islands. In addition...the
long duration of northeast winds coupled with large waves over
multiple high tide cycles will result in areas of severe beach
erosion for a prolonged period.

PRECAUTIONARY / PREPAREDNESS ACTIONS:

Take the necessary actions to protect flood-prone property. If
travel is required, do not drive around barricades or through
water of unknown depth.

Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.

&&

Time of high total tides are approximate to the nearest hour.

Gloucester Harbor
MLLW Categories - Minor 11.5 ft, Moderate 13.0 ft, Major 15.0 ft
MHHW Categories - Minor 1.9 ft, Moderate 3.4 ft, Major 5.4 ft

Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
27/12 AM 11.2/11.7 1.6/ 2.0 1.8/ 2.2 11 None
27/12 PM 11.2/11.7 1.6/ 2.0 1.5/ 2.0 10-11 None
28/01 AM 10.4/10.9 0.8/ 1.3 1.0/ 1.5 8 None
28/01 PM 11.0/11.5 1.4/ 1.9 0.9/ 1.4 7 None
29/01 AM 10.2/10.7 0.6/ 1.1 0.8/ 1.3 5-6 None

Merrimack River near Newburyport MA
MLLW Categories - Minor 11.0 ft, Moderate 12.0 ft, Major 13.5 ft
MHHW Categories - Minor 1.5 ft, Moderate 2.5 ft, Major 4.0 ft

Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
27/12 AM 10.3/10.8 0.8/ 1.3 1.8/ 2.2 8-9 None
27/12 PM 10.2/10.7 0.7/ 1.1 1.5/ 2.0 7-8 None
28/01 AM 9.6/10.1 0.1/ 0.6 1.0/ 1.5 6 None
28/01 PM 10.0/10.5 0.5/ 1.0 0.9/ 1.4 5 None
29/02 AM 9.3/ 9.8 -0.2/ 0.2 0.9/ 1.4 4 None

Boston Harbor
MLLW Categories - Minor 12.5 ft, Moderate 14.0 ft, Major 15.0 ft
MHHW Categories - Minor 2.2 ft, Moderate 3.7 ft, Major 4.7 ft

Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
27/12 AM 12.4/12.9 2.1/ 2.6 2.1/ 2.6 3 Minor
27/12 PM 12.3/12.8 2.0/ 2.5 1.7/ 2.2 3 Minor
28/12 AM 11.3/11.8 1.0/ 1.5 1.2/ 1.7 2 None
28/01 PM 12.0/12.5 1.7/ 2.2 1.1/ 1.6 2 None
29/01 AM 11.1/11.6 0.8/ 1.3 0.9/ 1.4 1-2 None

Revere
MLLW Categories - Minor 12.5 ft, Moderate 14.5 ft, Major 16.0 ft
MHHW Categories - Minor 2.6 ft, Moderate 4.6 ft, Major 6.1 ft

Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
27/12 AM 12.1/12.6 2.2/ 2.7 2.0/ 2.5 2-3 None
27/12 PM 12.0/12.5 2.1/ 2.6 1.7/ 2.2 2 None
28/01 AM 11.1/11.6 1.2/ 1.7 1.1/ 1.6 2 None
28/01 PM 11.6/12.1 1.7/ 2.2 1.0/ 1.5 2 None
29/01 AM 10.8/11.3 0.9/ 1.4 0.9/ 1.4 1-2 None

Green Harbor
MLLW Categories - Minor 11.5 ft, Moderate 13.5 ft, Major 15.5 ft
MHHW Categories - Minor 1.6 ft, Moderate 3.6 ft, Major 5.6 ft

Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
27/12 AM 11.6/12.1 1.7/ 2.2 2.0/ 2.5 7-8 Minor
27/12 PM 11.5/12.0 1.6/ 2.0 1.7/ 2.2 7 Minor
28/01 AM 10.7/11.2 0.8/ 1.3 1.1/ 1.6 5 None
28/01 PM 11.2/11.7 1.3/ 1.8 1.0/ 1.5 4 None
29/01 AM 10.4/10.9 0.5/ 1.0 0.9/ 1.4 4 None

Scituate MA
MLLW Categories - Minor 11.5 ft, Moderate 13.5 ft, Major 15.5 ft
MHHW Categories - Minor 1.8 ft, Moderate 3.8 ft, Major 5.8 ft

Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
27/12 AM 11.3/11.8 1.6/ 2.0 1.9/ 2.3 10 Minor
27/12 PM 11.3/11.8 1.6/ 2.0 1.6/ 2.0 9 Minor
28/01 AM 10.5/11.0 0.8/ 1.3 1.1/ 1.6 7 None
28/01 PM 11.1/11.6 1.4/ 1.9 1.0/ 1.5 6 None
29/01 AM 10.3/10.8 0.6/ 1.1 0.9/ 1.4 5 None

Buzzards Bay at Woods Hole
MLLW Categories - Minor 5.5 ft, Moderate 7.0 ft, Major 8.5 ft
MHHW Categories - Minor 3.5 ft, Moderate 5.0 ft, Major 6.5 ft

Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
26/09 PM 3.7/ 4.2 1.8/ 2.2 1.6/ 2.0 5 None
27/09 AM 4.0/ 4.5 2.1/ 2.6 1.6/ 2.0 4 None
27/09 PM 3.0/ 3.5 1.0/ 1.5 0.9/ 1.4 3 None
28/10 AM 3.6/ 4.1 1.6/ 2.0 0.9/ 1.4 2 None
28/10 PM 2.7/ 3.2 0.7/ 1.1 0.7/ 1.1 2 None
29/11 AM 3.4/ 3.9 1.4/ 1.9 0.7/ 1.1 2 None

Chatham MA - East Coast
MLLW Categories - Minor 9.0 ft, Moderate 11.5 ft, Major 13.0 ft
MHHW Categories - Minor 3.8 ft, Moderate 6.3 ft, Major 7.8 ft

Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
27/01 AM 7.1/ 7.6 1.9/ 2.3 1.7/ 2.2 8-9 None
27/01 PM 7.1/ 7.6 1.9/ 2.3 1.4/ 1.9 7 None
28/01 AM 6.2/ 6.7 1.0/ 1.5 0.9/ 1.4 5 None
28/01 PM 6.6/ 7.1 1.4/ 1.9 0.8/ 1.3 5 None
29/02 AM 6.0/ 6.5 0.8/ 1.3 0.7/ 1.1 4 None

Chatham - South side
MLLW Categories - Minor 9.0 ft, Moderate 10.5 ft, Major 11.5 ft
MHHW Categories - Minor 4.5 ft, Moderate 6.0 ft, Major 7.0 ft

Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
27/01 AM 5.5/ 6.0 1.0/ 1.5 1.5/ 2.0 7 None
27/01 PM 5.5/ 6.0 1.0/ 1.5 1.2/ 1.7 6 None
28/01 AM 4.7/ 5.2 0.2/ 0.8 0.9/ 1.4 4-5 None
28/01 PM 5.2/ 5.7 0.7/ 1.1 0.7/ 1.1 4 None
29/02 AM 4.6/ 5.1 0.1/ 0.6 0.7/ 1.1 4 None

Hyannis Harbor
MLLW Categories - Minor 5.0 ft, Moderate 6.5 ft, Major 8.5 ft
MHHW Categories - Minor 1.2 ft, Moderate 2.7 ft, Major 4.7 ft

Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
27/01 AM 5.2/ 5.7 1.5/ 2.0 1.8/ 2.2 4 Minor
27/01 PM 5.1/ 5.6 1.3/ 1.8 1.3/ 1.8 4 Minor
28/02 AM 4.2/ 4.7 0.5/ 1.0 0.9/ 1.4 2-3 None
28/02 PM 4.7/ 5.2 0.9/ 1.4 0.8/ 1.3 2 None
29/02 AM 4.0/ 4.5 0.2/ 0.7 0.7/ 1.1 2 None

Provincetown Harbor
MLLW Categories - Minor 13.0 ft, Moderate 14.0 ft, Major 15.0 ft
MHHW Categories - Minor 2.9 ft, Moderate 3.9 ft, Major 4.9 ft

Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
27/12 AM 11.9/12.4 1.8/ 2.2 1.7/ 2.2 9 None
27/12 PM 11.8/12.3 1.7/ 2.2 1.5/ 2.0 8-9 None
28/01 AM 11.2/11.7 1.1/ 1.6 1.0/ 1.5 6 None
28/01 PM 11.5/12.0 1.4/ 1.9 0.8/ 1.3 5 None
29/01 AM 10.8/11.3 0.7/ 1.1 0.8/ 1.3 4-5 None

Dennis - Sesuit Harbor
MLLW Categories - Minor 13.0 ft, Moderate 14.5 ft, Major 16.0 ft
MHHW Categories - Minor 2.5 ft, Moderate 4.0 ft, Major 5.5 ft

Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
27/12 AM 12.3/12.8 1.8/ 2.2 1.9/ 2.3 5 None
27/12 PM 12.2/12.7 1.7/ 2.2 1.5/ 2.0 4-5 None
28/01 AM 11.5/12.0 1.0/ 1.5 1.0/ 1.5 3 None
28/01 PM 12.1/12.6 1.6/ 2.0 0.9/ 1.4 3 None
29/01 AM 11.2/11.7 0.7/ 1.1 0.8/ 1.3 2 None

Sandwich Harbor
MLLW Categories - Minor 12.0 ft, Moderate 14.0 ft, Major 15.0 ft
MHHW Categories - Minor 1.7 ft, Moderate 3.7 ft, Major 4.7 ft

Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
27/12 AM 10.9/11.4 0.6/ 1.1 2.1/ 2.6 5 None
27/12 PM 10.8/11.3 0.5/ 1.0 1.7/ 2.2 4-5 None
28/01 AM 9.9/10.4 -0.5/ 0.0 1.2/ 1.7 3 None
28/01 PM 10.4/10.9 0.1/ 0.6 1.0/ 1.5 2 None
29/01 AM 9.5/10.0 -0.9/-0.4 0.9/ 1.4 2 None

Wings Neck
MLLW Categories - Minor 6.5 ft, Moderate 9.0 ft, Major 11.5 ft
MHHW Categories - Minor 2.1 ft, Moderate 4.6 ft, Major 7.1 ft

Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
26/09 PM 4.9/ 5.4 0.5/ 1.0 0.7/ 1.1 3 None
27/09 AM 5.7/ 6.2 1.3/ 1.8 1.1/ 1.6 3 None
27/09 PM 4.7/ 5.2 0.2/ 0.8 0.6/ 1.1 3 None
28/10 AM 5.5/ 6.0 1.1/ 1.6 0.8/ 1.3 2 None
28/10 PM 4.7/ 5.2 0.2/ 0.8 0.6/ 1.1 1-2 None
29/11 AM 5.4/ 5.9 1.0/ 1.5 0.7/ 1.1 1-2 None

Edgartown
MLLW Categories - Minor 4.0 ft, Moderate 5.0 ft, Major 7.0 ft
MHHW Categories - Minor 1.3 ft, Moderate 2.3 ft, Major 4.3 ft

Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
27/01 AM 4.0/ 4.5 1.4/ 1.9 2.1/ 2.6 6 Minor
28/01 AM 2.8/ 3.4 0.2/ 0.7 1.0/ 1.5 3 None
28/11 AM 3.4/ 3.9 0.7/ 1.1 0.9/ 1.4 2-3 None
29/02 AM 2.5/ 3.0 -0.2/ 0.2 0.7/ 1.1 3 None
29/12 PM 3.2/ 3.7 0.6/ 1.1 0.7/ 1.1 2 None

Vineyard Haven
MLLW Categories - Minor 4.5 ft, Moderate 6.0 ft, Major 7.0 ft
MHHW Categories - Minor 2.5 ft, Moderate 4.0 ft, Major 5.0 ft

Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
27/12 AM 3.7/ 4.2 1.7/ 2.2 1.9/ 2.3 4-5 None
27/12 PM 3.2/ 3.7 1.2/ 1.7 1.3/ 1.8 4 None
28/01 AM 2.6/ 3.1 0.6/ 1.1 0.9/ 1.4 2-3 None
28/01 PM 2.7/ 3.2 0.8/ 1.3 0.8/ 1.3 2 None
29/02 AM 2.2/ 2.7 0.2/ 0.8 0.7/ 1.1 2 None

Nantucket Harbor
MLLW Categories - Minor 5.0 ft, Moderate 6.5 ft, Major 8.0 ft
MHHW Categories - Minor 1.4 ft, Moderate 2.9 ft, Major 4.4 ft

Total Total Departure
Day/Time Tide Tide from Norm Waves Flood
ft MLLW ft MHHW ft ft Impact
-------- --------- --------- --------- ------- --------
27/01 AM 5.1/ 5.6 1.5/ 2.0 1.8/ 2.2 8 Minor
27/01 PM 4.7/ 5.2 1.2/ 1.7 1.2/ 1.7 6-7 Minor
28/01 AM 4.0/ 4.5 0.5/ 1.0 0.9/ 1.4 4-5 None
28/02 PM 4.5/ 5.0 0.9/ 1.4 0.7/ 1.1 4 None
29/02 AM 3.7/ 4.2 0.2/ 0.7 0.7/ 1.1 4 None

&&

High Wind Warning - 1:24pm Sat Sep 26 2026

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 AM EDT SUNDAY...

WHAT: Northeast winds 20 to 30 mph with gusts of 45 to 60 mph.

WHERE: The eastern Massachusetts coast as well as the south coasts
of both Rhode Island and Massachusetts. This includes Cape Cod and
the Islands.

WHEN: Until 8 AM EDT Sunday.

IMPACTS: Damaging winds will blow down trees and power lines.
Power outages are expected. Travel will be difficult, especially
for high profile vehicles.

ADDITIONAL DETAILS: The long duration of the winds coupled with
heavy rain and fully leafed trees may exacerbate the risk for tree
damage and power outages.

PRECAUTIONARY / PREPAREDNESS ACTIONS:

People are urged to secure loose objects that could be blown around
or damaged by the wind.

&&

Storm Warning - 12:26pm Sat Sep 26 2026

...STORM WARNING NOW IN EFFECT UNTIL 10 AM EDT SUNDAY...

WHAT: Northeast winds 25 to 35 kt with gusts up to 50 kt and
seas 10 to 14 feet.

WHERE: In Massachusetts coastal waters, Coastal waters east
of Ipswich Bay and the Stellwagen Bank National Marine
Sanctuary and Massachusetts Bay and Ipswich Bay. In Atlantic
coastal waters, Ocean Waters from the Merrimack River to
Plymouth from 40 to 60 NM.

WHEN: Until 10 AM EDT Sunday.

IMPACTS: Storm force winds and hazardous seas will capsize or
damage vessels and reduce visibility.

PRECAUTIONARY / PREPAREDNESS ACTIONS:

Mariners should remain in port, alter course, and/or secure the
vessel for severe conditions.

&&

Flood Watch - 12:18pm Sat Sep 26 2026

...FLOOD WATCH IN EFFECT THROUGH LATE MONDAY NIGHT...

WHAT: Flooding caused by excessive rainfall is possible.

WHERE: Central and eastern Massachusetts as well as all of Rhode
Island.

WHEN: Through late Monday night.

IMPACTS: Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Creeks and streams may rise out of their banks.

ADDITIONAL DETAILS: - Periods of rain will continue across the region right through
Monday. Storm total rainfall amount of 2-4" are expected, but
localized 5-7" amounts are possible. If these higher amounts are
realized...the potential for both urban and small river/stream
flooding would increase. This is particularly true if these
localized higher amounts occur over a vulnerable urban center.
- http://www.weather.gov/safety/flood

PRECAUTIONARY / PREPAREDNESS ACTIONS:

You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.

&&

High Surf Advisory - 2:08pm Sat Sep 26 2026