Active Weather Alerts
Coastal Flood Advisory
Issued: 6:18 PM Oct. 12, 2025 – National Weather Service
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS EVENING... * WHAT...Up to one half foot of inundation above ground level in low- lying areas near shorelines and tidal waterways (3.6 to 12.5 feet Mean Lower Low Water). * WHERE...Eastern Essex MA, Suffolk MA, Eastern Norfolk MA, Eastern Plymouth MA and Barnstable MA Counties. * WHEN...Until 6 PM EDT this evening. * IMPACTS...Roads remain passable. Shallow pockets of flooding less than one foot deep affect more vulnerable coastal roads along the North Shore from Salem and Gloucester to Newburyport. Rough surf will likely cause some splashover onto coastal roads around the time of high tide. PRECAUTIONARY/PREPAREDNESS ACTIONS... If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property. && && 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 -------- --------- --------- --------- ------- -------- 12/04 PM 11.4/11.9 1.8/ 2.2 0.9/ 1.4 5-7 Minor 13/05 AM 10.0/10.5 0.4/ 0.9 1.3/ 1.8 11-13 None 13/05 PM 11.4/11.9 1.8/ 2.2 1.3/ 1.8 14 Minor 14/06 AM 9.5/10.0 -0.2/ 0.3 1.0/ 1.5 10-12 None 14/06 PM 10.4/10.9 0.8/ 1.3 0.8/ 1.3 7-8 None 15/07 AM 9.2/ 9.7 -0.5/ 0.0 0.8/ 1.3 5 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 -------- --------- --------- --------- ------- -------- 12/04 PM 10.3/10.8 0.8/ 1.3 0.9/ 1.4 4-6 None 13/05 AM 9.1/ 9.6 -0.5/ 0.0 1.3/ 1.8 8-10 None 13/05 PM 10.1/10.6 0.6/ 1.1 1.1/ 1.6 10 None 14/06 AM 8.6/ 9.1 -1.0/-0.5 1.0/ 1.5 7-8 None 14/06 PM 9.4/ 9.9 -0.2/ 0.3 0.8/ 1.3 5-6 None 15/07 AM 8.3/ 8.8 -1.3/-0.8 0.8/ 1.3 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 -------- --------- --------- --------- ------- -------- 12/04 PM 11.9/12.4 1.6/ 2.0 1.0/ 1.5 2 None 13/05 AM 10.5/11.0 0.2/ 0.7 1.3/ 1.8 2 None 13/05 PM 11.7/12.2 1.4/ 1.9 1.3/ 1.8 2 None 14/06 AM 9.9/10.4 -0.5/ 0.0 1.0/ 1.5 2 None 14/06 PM 10.8/11.3 0.5/ 1.0 0.9/ 1.4 1-2 None 15/07 AM 9.7/10.2 -0.7/-0.2 0.9/ 1.4 1 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 -------- --------- --------- --------- ------- -------- 12/04 PM 11.6/12.1 1.7/ 2.2 0.9/ 1.4 2 None 13/05 AM 10.1/10.6 0.2/ 0.7 1.2/ 1.7 2 None 13/05 PM 11.4/11.9 1.5/ 2.0 1.2/ 1.7 2 None 14/06 AM 9.6/10.1 -0.3/ 0.2 1.0/ 1.5 2 None 14/06 PM 10.6/11.1 0.7/ 1.1 0.9/ 1.4 1-2 None 15/07 AM 9.4/ 9.9 -0.6/-0.1 0.9/ 1.4 1 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 -------- --------- --------- --------- ------- -------- 12/04 PM 11.8/12.3 1.9/ 2.3 1.0/ 1.5 3-4 Minor 13/05 AM 10.7/11.2 0.8/ 1.3 1.7/ 2.2 6-7 None 13/05 PM 12.7/13.2 2.7/ 3.2 2.3/ 2.8 7-8 Minor 14/06 AM 10.0/10.5 0.1/ 0.6 1.3/ 1.8 6-7 None 14/06 PM 10.9/11.4 1.0/ 1.5 1.0/ 1.5 5 None 15/07 AM 9.6/10.1 -0.3/ 0.2 1.0/ 1.5 3 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 -------- --------- --------- --------- ------- -------- 12/04 PM 11.5/12.0 1.8/ 2.2 1.0/ 1.5 4-5 Minor 13/05 AM 10.2/10.7 0.5/ 1.0 1.5/ 2.0 9-11 None 13/05 PM 11.6/12.1 1.9/ 2.3 2.5/ 3.0 12 Minor 14/06 AM 9.7/10.2 0.0/ 0.5 1.2/ 1.7 8-11 None 14/06 PM 10.5/11.0 0.8/ 1.3 0.9/ 1.4 6-7 None 15/07 AM 9.4/ 9.9 -0.3/ 0.2 0.9/ 1.4 4 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 -------- --------- --------- --------- ------- -------- 12/01 PM 3.6/ 4.1 1.6/ 2.0 1.1/ 1.6 4-5 None 13/02 AM 3.5/ 4.0 1.5/ 2.0 1.9/ 2.3 6 None 13/02 PM 3.9/ 4.4 1.9/ 2.3 1.6/ 2.0 6 None 14/02 AM 2.7/ 3.2 0.7/ 1.1 1.2/ 1.7 5 None 14/03 PM 3.1/ 3.6 1.1/ 1.6 1.0/ 1.5 4 None 15/03 AM 2.5/ 3.0 0.5/ 1.0 1.0/ 1.5 3 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 -------- --------- --------- --------- ------- -------- 12/05 PM 6.9/ 7.4 1.7/ 2.2 0.9/ 1.4 6-8 None 13/06 AM 5.9/ 6.4 0.7/ 1.1 1.2/ 1.7 10-11 None 13/06 PM 6.7/ 7.2 1.5/ 2.0 1.0/ 1.5 10-11 None 14/07 AM 5.2/ 5.7 0.1/ 0.6 0.8/ 1.3 8-9 None 14/07 PM 6.2/ 6.7 1.0/ 1.5 0.8/ 1.3 6-7 None 15/08 AM 5.4/ 5.9 0.2/ 0.7 0.8/ 1.3 5 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 -------- --------- --------- --------- ------- -------- 12/05 PM 5.7/ 6.2 1.3/ 1.8 0.9/ 1.4 5-7 None 13/06 AM 4.9/ 5.4 0.4/ 0.9 1.1/ 1.6 9 None 13/06 PM 5.7/ 6.2 1.3/ 1.8 1.0/ 1.5 9 None 14/07 AM 4.5/ 5.0 0.0/ 0.5 0.8/ 1.3 7 None 14/07 PM 5.2/ 5.7 0.8/ 1.3 0.7/ 1.1 6 None 15/08 AM 4.6/ 5.1 0.1/ 0.6 0.8/ 1.3 4 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 -------- --------- --------- --------- ------- -------- 12/04 PM 11.8/12.3 1.7/ 2.2 1.1/ 1.6 4-6 None 13/05 AM 10.7/11.2 0.6/ 1.1 1.6/ 2.0 9-10 None 13/05 PM 11.9/12.4 1.8/ 2.2 1.7/ 2.2 10 None 14/06 AM 10.2/10.7 0.1/ 0.6 1.4/ 1.9 8-9 None 14/06 PM 11.1/11.6 1.0/ 1.5 1.3/ 1.8 6-7 None 15/07 AM 10.0/10.5 -0.2/ 0.3 1.3/ 1.8 4 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 -------- --------- --------- --------- ------- -------- 12/04 PM 12.7/13.2 2.2/ 2.7 1.2/ 1.7 3-5 None 13/05 AM 11.4/11.9 0.9/ 1.4 1.7/ 2.2 6-7 None 13/05 PM 12.7/13.2 2.2/ 2.7 1.7/ 2.2 6 None 14/06 AM 10.9/11.4 0.4/ 0.9 1.5/ 2.0 5-6 None 14/06 PM 11.9/12.4 1.4/ 1.9 1.4/ 1.9 4 None 15/07 AM 10.6/11.1 0.1/ 0.6 1.3/ 1.8 3 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 -------- --------- --------- --------- ------- -------- 12/04 PM 11.0/11.5 0.7/ 1.1 1.5/ 2.0 3-4 None 13/05 AM 10.0/10.5 -0.3/ 0.2 2.1/ 2.6 5 None 13/05 PM 11.2/11.7 0.9/ 1.4 2.1/ 2.6 5 None 14/06 AM 9.2/ 9.7 -1.1/-0.7 1.6/ 2.0 4-5 None 14/06 PM 10.1/10.6 -0.2/ 0.2 1.4/ 1.9 4 None 15/07 AM 8.9/ 9.4 -1.5/-1.0 1.3/ 1.8 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 -------- --------- --------- --------- ------- -------- 12/01 PM 5.2/ 5.7 0.8/ 1.3 0.7/ 1.1 3 None 13/02 AM 5.0/ 5.5 0.6/ 1.1 1.4/ 1.9 4 None 13/02 PM 5.4/ 5.9 1.0/ 1.5 1.2/ 1.7 4 None 14/03 AM 4.4/ 4.9 0.0/ 0.5 0.8/ 1.3 3-4 None 14/03 PM 4.5/ 5.0 0.1/ 0.6 0.5/ 1.0 3 None 15/04 AM 4.5/ 5.0 0.1/ 0.6 0.9/ 1.4 2 None &&
Gale Warning
Issued: 6:00 PM Oct. 12, 2025 – National Weather Service
...GALE WARNING NOW IN EFFECT UNTIL 2 AM EDT TUESDAY... * WHAT...Northeast winds 25 to 35 kt with gusts up to 40 kt and seas 10 to 15 feet. * WHERE...Massachusetts Bay and Ipswich Bay. * WHEN...Until 2 AM EDT Tuesday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions. &&
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