Active Weather Alerts
High Surf Advisory
Issued: 5:53 AM Sep. 25, 2026 – National Weather Service
...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 5 AM EARLY THIS MORNING TO 8 PM EDT SUNDAY... ...COASTAL FLOOD WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO 8 PM EDT SUNDAY... * WHAT...For the High Surf Advisory, large breaking waves of 6 to 13 feet expected in the surf zone. For the Coastal Flood Warning, up to one foot of inundation above ground level possible in low-lying areas near shorelines and tidal waterways (4.2 to 12.8 feet Mean Lower Low Water). An extended period of beach erosion is also expected. * WHERE...Eastern Essex MA, Suffolk MA, Eastern Norfolk MA, Eastern Plymouth MA, Barnstable MA, Dukes MA and Nantucket MA Counties. * WHEN...For the High Surf Advisory, from 5 AM early this morning to 8 PM EDT Sunday. For the Coastal Flood Warning, from 5 PM this afternoon to 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 Friday through the weekend. 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 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 -------- --------- --------- --------- ------- -------- 24/11 PM 9.0/ 9.5 -0.7/-0.2 0.1/ 0.6 6 None 25/11 AM 9.5/10.0 -0.2/ 0.3 0.7/ 1.1 7-8 None 25/11 PM 10.9/11.4 1.3/ 1.8 1.7/ 2.2 9-12 None 26/12 PM 11.3/11.8 1.7/ 2.2 2.2/ 2.7 15 Minor 27/12 AM 11.0/11.5 1.4/ 1.9 1.6/ 2.0 12-13 None 27/12 PM 10.9/11.4 1.3/ 1.8 1.2/ 1.7 8-9 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 -------- --------- --------- --------- ------- -------- 24/11 PM 8.3/ 8.8 -1.3/-0.8 0.1/ 0.6 4 None 25/11 AM 8.7/ 9.2 -0.9/-0.4 0.7/ 1.1 5-6 None 26/12 AM 10.1/10.6 0.6/ 1.1 1.8/ 2.2 6-8 None 26/12 PM 10.6/11.1 1.1/ 1.6 2.2/ 2.7 9 None 27/12 AM 10.2/10.7 0.7/ 1.1 1.7/ 2.2 8-9 None 27/12 PM 10.0/10.5 0.5/ 1.0 1.3/ 1.8 6-7 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 -------- --------- --------- --------- ------- -------- 24/10 PM 10.0/10.5 -0.3/ 0.2 0.2/ 0.7 2 None 25/11 AM 10.5/11.0 0.2/ 0.7 0.8/ 1.3 2 None 25/11 PM 12.1/12.6 1.8/ 2.2 1.9/ 2.3 2 None 26/12 PM 12.6/13.1 2.2/ 2.7 2.5/ 3.0 2 Minor 27/12 AM 12.3/12.8 2.0/ 2.5 2.0/ 2.5 2 Minor 27/12 PM 12.1/12.6 1.8/ 2.2 1.5/ 2.0 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 -------- --------- --------- --------- ------- -------- 24/11 PM 9.7/10.2 -0.2/ 0.2 0.2/ 0.7 2 None 25/11 AM 10.1/10.6 0.2/ 0.7 0.7/ 1.1 2 None 25/11 PM 11.7/12.2 1.8/ 2.2 1.8/ 2.2 2 None 26/12 PM 12.2/12.7 2.2/ 2.7 2.3/ 2.8 2 None 27/12 AM 11.9/12.4 2.0/ 2.5 1.8/ 2.2 2 None 27/12 PM 11.7/12.2 1.8/ 2.2 1.4/ 1.9 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 -------- --------- --------- --------- ------- -------- 24/11 PM 9.4/ 9.9 -0.6/-0.1 0.2/ 0.7 4 None 25/11 AM 9.7/10.2 -0.2/ 0.2 0.8/ 1.3 5 None 26/12 AM 11.4/11.9 1.5/ 2.0 2.2/ 2.7 7-9 Minor 26/12 PM 11.9/12.4 2.0/ 2.5 2.5/ 3.0 9 Minor 27/12 AM 11.5/12.0 1.6/ 2.0 1.9/ 2.3 7-8 Minor 27/12 PM 11.2/11.7 1.3/ 1.8 1.4/ 1.9 5-6 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 -------- --------- --------- --------- ------- -------- 24/11 PM 9.2/ 9.7 -0.6/-0.1 0.2/ 0.7 6 None 25/11 AM 9.6/10.1 -0.2/ 0.3 0.8/ 1.3 7-8 None 25/11 PM 11.1/11.6 1.4/ 1.9 1.9/ 2.3 10-12 None 26/12 PM 11.6/12.1 1.9/ 2.3 2.3/ 2.8 14 Minor 27/12 AM 11.2/11.7 1.5/ 2.0 1.8/ 2.2 12-14 None 27/12 PM 11.0/11.5 1.3/ 1.8 1.3/ 1.8 7-9 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 -------- --------- --------- --------- ------- -------- 24/07 PM 2.5/ 3.0 0.5/ 1.0 0.4/ 0.9 4 None 25/08 AM 2.7/ 3.2 0.7/ 1.1 0.6/ 1.1 4 None 25/09 PM 3.9/ 4.4 1.9/ 2.3 1.9/ 2.3 5-6 None 26/09 AM 4.6/ 5.1 2.6/ 3.1 2.2/ 2.7 6 None 26/09 PM 3.5/ 4.0 1.5/ 2.0 1.3/ 1.8 4-5 None 27/09 AM 3.4/ 3.9 1.4/ 1.9 0.9/ 1.4 4-5 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 -------- --------- --------- --------- ------- -------- 25/12 AM 5.4/ 5.9 0.2/ 0.7 0.2/ 0.8 7-8 None 25/12 PM 5.7/ 6.2 0.6/ 1.1 0.8/ 1.3 8-9 None 26/12 AM 7.5/ 8.0 2.2/ 2.7 2.2/ 2.7 12-13 None 26/12 PM 7.5/ 8.0 2.2/ 2.7 2.2/ 2.7 11-12 None 27/01 AM 6.8/ 7.3 1.6/ 2.0 1.4/ 1.9 9 None 27/01 PM 6.8/ 7.3 1.6/ 2.0 1.1/ 1.6 6-7 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 -------- --------- --------- --------- ------- -------- 25/12 AM 4.2/ 4.7 -0.2/ 0.2 0.2/ 0.8 6-7 None 25/11 AM 4.4/ 4.9 -0.2/ 0.3 0.6/ 1.1 7-8 None 26/12 AM 5.7/ 6.2 1.2/ 1.7 1.7/ 2.2 10-11 None 26/12 PM 5.7/ 6.2 1.3/ 1.8 1.8/ 2.2 10 None 27/01 AM 5.2/ 5.7 0.8/ 1.3 1.3/ 1.8 7-8 None 27/01 PM 5.2/ 5.7 0.7/ 1.1 0.9/ 1.4 5-6 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 -------- --------- --------- --------- ------- -------- 24/11 PM 3.9/ 4.4 0.1/ 0.6 0.2/ 0.8 4 None 25/12 PM 4.0/ 4.5 0.2/ 0.7 0.7/ 1.1 4-5 None 26/12 AM 5.4/ 5.9 1.6/ 2.0 1.8/ 2.2 6 Minor 26/12 PM 5.5/ 6.0 1.7/ 2.2 2.0/ 2.5 6 Minor 27/01 AM 5.0/ 5.5 1.2/ 1.7 1.5/ 2.0 5 Minor 27/01 PM 4.7/ 5.2 1.0/ 1.5 1.0/ 1.5 3-4 Minor 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 -------- --------- --------- --------- ------- -------- 24/11 PM 9.8/10.3 -0.3/ 0.2 0.1/ 0.6 6 None 25/11 AM 10.2/10.7 0.1/ 0.6 0.7/ 1.1 7-8 None 25/11 PM 11.7/12.2 1.6/ 2.0 1.7/ 2.2 11-13 None 26/12 PM 12.0/12.5 1.9/ 2.3 2.1/ 2.6 14 None 27/12 AM 11.7/12.2 1.6/ 2.0 1.5/ 2.0 10-12 None 27/12 PM 11.5/12.0 1.4/ 1.9 1.2/ 1.7 6-7 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 -------- --------- --------- --------- ------- -------- 24/11 PM 10.0/10.5 -0.6/-0.1 0.2/ 0.7 4-5 None 25/11 AM 10.7/11.2 0.2/ 0.7 0.9/ 1.4 5-6 None 25/11 PM 12.1/12.6 1.6/ 2.0 2.0/ 2.5 7-8 None 26/12 PM 12.6/13.1 2.1/ 2.6 2.3/ 2.8 8 None 27/12 AM 12.0/12.5 1.5/ 2.0 1.6/ 2.0 6 None 27/12 PM 12.0/12.5 1.5/ 2.0 1.3/ 1.8 4-5 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 -------- --------- --------- --------- ------- -------- 24/10 PM 8.6/ 9.1 -1.8/-1.3 0.2/ 0.8 3 None 25/11 AM 9.2/ 9.7 -1.1/-0.7 1.0/ 1.5 4-5 None 25/11 PM 10.9/11.4 0.6/ 1.1 2.2/ 2.7 6-8 None 26/11 AM 11.2/11.7 0.9/ 1.4 2.7/ 3.2 8 None 27/12 AM 10.6/11.1 0.2/ 0.8 1.8/ 2.2 5-6 None 27/12 PM 10.6/11.1 0.2/ 0.8 1.5/ 2.0 4-5 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 -------- --------- --------- --------- ------- -------- 24/08 PM 4.2/ 4.7 -0.2/ 0.2 0.2/ 0.8 3 None 25/08 AM 4.5/ 5.0 0.1/ 0.6 0.2/ 0.8 3 None 25/09 PM 5.0/ 5.5 0.6/ 1.1 1.2/ 1.7 3-4 None 26/08 AM 5.7/ 6.2 1.3/ 1.8 1.3/ 1.8 4 None 26/09 PM 4.7/ 5.2 0.4/ 0.9 0.6/ 1.1 3 None 27/09 AM 4.7/ 5.2 0.4/ 0.9 0.2/ 0.7 3 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 -------- --------- --------- --------- ------- -------- 24/11 PM 2.7/ 3.2 0.1/ 0.6 0.6/ 1.1 5 None 25/11 AM 3.0/ 3.5 0.2/ 0.8 1.0/ 1.5 6 None 26/09 AM 4.7/ 5.2 2.1/ 2.6 2.7/ 3.2 7-8 Moderate 26/11 PM 3.5/ 4.0 0.8/ 1.3 1.6/ 2.0 5 None 27/10 AM 3.4/ 3.9 0.7/ 1.1 1.1/ 1.6 4-5 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 -------- --------- --------- --------- ------- -------- 24/11 PM 2.2/ 2.7 0.2/ 0.7 0.5/ 1.0 4 None 25/11 AM 2.7/ 3.2 0.7/ 1.1 0.9/ 1.4 4-5 None 26/12 AM 3.9/ 4.4 1.9/ 2.3 2.1/ 2.6 6 None 26/11 AM 4.0/ 4.5 2.0/ 2.5 2.2/ 2.7 5-6 None 27/12 AM 3.2/ 3.7 1.3/ 1.8 1.5/ 2.0 4 None 27/12 PM 2.7/ 3.2 0.8/ 1.3 0.9/ 1.4 3-4 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 -------- --------- --------- --------- ------- -------- 24/11 PM 3.7/ 4.2 0.1/ 0.6 0.4/ 0.9 7-8 None 25/02 PM 4.0/ 4.5 0.4/ 0.9 1.5/ 2.0 8-10 None 26/12 AM 5.6/ 6.1 2.0/ 2.5 2.2/ 2.7 10-11 Minor 26/12 PM 5.6/ 6.1 2.0/ 2.5 2.2/ 2.7 9-10 Minor 27/01 AM 4.7/ 5.2 1.1/ 1.6 1.4/ 1.9 7-8 None 27/01 PM 4.5/ 5.0 0.9/ 1.4 0.9/ 1.4 5-6 None &&
Coastal Flood Warning
Issued: 5:53 AM Sep. 25, 2026 – National Weather Service
...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 5 AM EARLY THIS MORNING TO 8 PM EDT SUNDAY... ...COASTAL FLOOD WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO 8 PM EDT SUNDAY... * WHAT...For the High Surf Advisory, large breaking waves of 6 to 13 feet expected in the surf zone. For the Coastal Flood Warning, up to one foot of inundation above ground level possible in low-lying areas near shorelines and tidal waterways (4.2 to 12.8 feet Mean Lower Low Water). An extended period of beach erosion is also expected. * WHERE...Eastern Essex MA, Suffolk MA, Eastern Norfolk MA, Eastern Plymouth MA, Barnstable MA, Dukes MA and Nantucket MA Counties. * WHEN...For the High Surf Advisory, from 5 AM early this morning to 8 PM EDT Sunday. For the Coastal Flood Warning, from 5 PM this afternoon to 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 Friday through the weekend. 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 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 -------- --------- --------- --------- ------- -------- 24/11 PM 9.0/ 9.5 -0.7/-0.2 0.1/ 0.6 6 None 25/11 AM 9.5/10.0 -0.2/ 0.3 0.7/ 1.1 7-8 None 25/11 PM 10.9/11.4 1.3/ 1.8 1.7/ 2.2 9-12 None 26/12 PM 11.3/11.8 1.7/ 2.2 2.2/ 2.7 15 Minor 27/12 AM 11.0/11.5 1.4/ 1.9 1.6/ 2.0 12-13 None 27/12 PM 10.9/11.4 1.3/ 1.8 1.2/ 1.7 8-9 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 -------- --------- --------- --------- ------- -------- 24/11 PM 8.3/ 8.8 -1.3/-0.8 0.1/ 0.6 4 None 25/11 AM 8.7/ 9.2 -0.9/-0.4 0.7/ 1.1 5-6 None 26/12 AM 10.1/10.6 0.6/ 1.1 1.8/ 2.2 6-8 None 26/12 PM 10.6/11.1 1.1/ 1.6 2.2/ 2.7 9 None 27/12 AM 10.2/10.7 0.7/ 1.1 1.7/ 2.2 8-9 None 27/12 PM 10.0/10.5 0.5/ 1.0 1.3/ 1.8 6-7 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 -------- --------- --------- --------- ------- -------- 24/10 PM 10.0/10.5 -0.3/ 0.2 0.2/ 0.7 2 None 25/11 AM 10.5/11.0 0.2/ 0.7 0.8/ 1.3 2 None 25/11 PM 12.1/12.6 1.8/ 2.2 1.9/ 2.3 2 None 26/12 PM 12.6/13.1 2.2/ 2.7 2.5/ 3.0 2 Minor 27/12 AM 12.3/12.8 2.0/ 2.5 2.0/ 2.5 2 Minor 27/12 PM 12.1/12.6 1.8/ 2.2 1.5/ 2.0 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 -------- --------- --------- --------- ------- -------- 24/11 PM 9.7/10.2 -0.2/ 0.2 0.2/ 0.7 2 None 25/11 AM 10.1/10.6 0.2/ 0.7 0.7/ 1.1 2 None 25/11 PM 11.7/12.2 1.8/ 2.2 1.8/ 2.2 2 None 26/12 PM 12.2/12.7 2.2/ 2.7 2.3/ 2.8 2 None 27/12 AM 11.9/12.4 2.0/ 2.5 1.8/ 2.2 2 None 27/12 PM 11.7/12.2 1.8/ 2.2 1.4/ 1.9 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 -------- --------- --------- --------- ------- -------- 24/11 PM 9.4/ 9.9 -0.6/-0.1 0.2/ 0.7 4 None 25/11 AM 9.7/10.2 -0.2/ 0.2 0.8/ 1.3 5 None 26/12 AM 11.4/11.9 1.5/ 2.0 2.2/ 2.7 7-9 Minor 26/12 PM 11.9/12.4 2.0/ 2.5 2.5/ 3.0 9 Minor 27/12 AM 11.5/12.0 1.6/ 2.0 1.9/ 2.3 7-8 Minor 27/12 PM 11.2/11.7 1.3/ 1.8 1.4/ 1.9 5-6 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 -------- --------- --------- --------- ------- -------- 24/11 PM 9.2/ 9.7 -0.6/-0.1 0.2/ 0.7 6 None 25/11 AM 9.6/10.1 -0.2/ 0.3 0.8/ 1.3 7-8 None 25/11 PM 11.1/11.6 1.4/ 1.9 1.9/ 2.3 10-12 None 26/12 PM 11.6/12.1 1.9/ 2.3 2.3/ 2.8 14 Minor 27/12 AM 11.2/11.7 1.5/ 2.0 1.8/ 2.2 12-14 None 27/12 PM 11.0/11.5 1.3/ 1.8 1.3/ 1.8 7-9 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 -------- --------- --------- --------- ------- -------- 24/07 PM 2.5/ 3.0 0.5/ 1.0 0.4/ 0.9 4 None 25/08 AM 2.7/ 3.2 0.7/ 1.1 0.6/ 1.1 4 None 25/09 PM 3.9/ 4.4 1.9/ 2.3 1.9/ 2.3 5-6 None 26/09 AM 4.6/ 5.1 2.6/ 3.1 2.2/ 2.7 6 None 26/09 PM 3.5/ 4.0 1.5/ 2.0 1.3/ 1.8 4-5 None 27/09 AM 3.4/ 3.9 1.4/ 1.9 0.9/ 1.4 4-5 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 -------- --------- --------- --------- ------- -------- 25/12 AM 5.4/ 5.9 0.2/ 0.7 0.2/ 0.8 7-8 None 25/12 PM 5.7/ 6.2 0.6/ 1.1 0.8/ 1.3 8-9 None 26/12 AM 7.5/ 8.0 2.2/ 2.7 2.2/ 2.7 12-13 None 26/12 PM 7.5/ 8.0 2.2/ 2.7 2.2/ 2.7 11-12 None 27/01 AM 6.8/ 7.3 1.6/ 2.0 1.4/ 1.9 9 None 27/01 PM 6.8/ 7.3 1.6/ 2.0 1.1/ 1.6 6-7 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 -------- --------- --------- --------- ------- -------- 25/12 AM 4.2/ 4.7 -0.2/ 0.2 0.2/ 0.8 6-7 None 25/11 AM 4.4/ 4.9 -0.2/ 0.3 0.6/ 1.1 7-8 None 26/12 AM 5.7/ 6.2 1.2/ 1.7 1.7/ 2.2 10-11 None 26/12 PM 5.7/ 6.2 1.3/ 1.8 1.8/ 2.2 10 None 27/01 AM 5.2/ 5.7 0.8/ 1.3 1.3/ 1.8 7-8 None 27/01 PM 5.2/ 5.7 0.7/ 1.1 0.9/ 1.4 5-6 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 -------- --------- --------- --------- ------- -------- 24/11 PM 3.9/ 4.4 0.1/ 0.6 0.2/ 0.8 4 None 25/12 PM 4.0/ 4.5 0.2/ 0.7 0.7/ 1.1 4-5 None 26/12 AM 5.4/ 5.9 1.6/ 2.0 1.8/ 2.2 6 Minor 26/12 PM 5.5/ 6.0 1.7/ 2.2 2.0/ 2.5 6 Minor 27/01 AM 5.0/ 5.5 1.2/ 1.7 1.5/ 2.0 5 Minor 27/01 PM 4.7/ 5.2 1.0/ 1.5 1.0/ 1.5 3-4 Minor 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 -------- --------- --------- --------- ------- -------- 24/11 PM 9.8/10.3 -0.3/ 0.2 0.1/ 0.6 6 None 25/11 AM 10.2/10.7 0.1/ 0.6 0.7/ 1.1 7-8 None 25/11 PM 11.7/12.2 1.6/ 2.0 1.7/ 2.2 11-13 None 26/12 PM 12.0/12.5 1.9/ 2.3 2.1/ 2.6 14 None 27/12 AM 11.7/12.2 1.6/ 2.0 1.5/ 2.0 10-12 None 27/12 PM 11.5/12.0 1.4/ 1.9 1.2/ 1.7 6-7 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 -------- --------- --------- --------- ------- -------- 24/11 PM 10.0/10.5 -0.6/-0.1 0.2/ 0.7 4-5 None 25/11 AM 10.7/11.2 0.2/ 0.7 0.9/ 1.4 5-6 None 25/11 PM 12.1/12.6 1.6/ 2.0 2.0/ 2.5 7-8 None 26/12 PM 12.6/13.1 2.1/ 2.6 2.3/ 2.8 8 None 27/12 AM 12.0/12.5 1.5/ 2.0 1.6/ 2.0 6 None 27/12 PM 12.0/12.5 1.5/ 2.0 1.3/ 1.8 4-5 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 -------- --------- --------- --------- ------- -------- 24/10 PM 8.6/ 9.1 -1.8/-1.3 0.2/ 0.8 3 None 25/11 AM 9.2/ 9.7 -1.1/-0.7 1.0/ 1.5 4-5 None 25/11 PM 10.9/11.4 0.6/ 1.1 2.2/ 2.7 6-8 None 26/11 AM 11.2/11.7 0.9/ 1.4 2.7/ 3.2 8 None 27/12 AM 10.6/11.1 0.2/ 0.8 1.8/ 2.2 5-6 None 27/12 PM 10.6/11.1 0.2/ 0.8 1.5/ 2.0 4-5 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 -------- --------- --------- --------- ------- -------- 24/08 PM 4.2/ 4.7 -0.2/ 0.2 0.2/ 0.8 3 None 25/08 AM 4.5/ 5.0 0.1/ 0.6 0.2/ 0.8 3 None 25/09 PM 5.0/ 5.5 0.6/ 1.1 1.2/ 1.7 3-4 None 26/08 AM 5.7/ 6.2 1.3/ 1.8 1.3/ 1.8 4 None 26/09 PM 4.7/ 5.2 0.4/ 0.9 0.6/ 1.1 3 None 27/09 AM 4.7/ 5.2 0.4/ 0.9 0.2/ 0.7 3 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 -------- --------- --------- --------- ------- -------- 24/11 PM 2.7/ 3.2 0.1/ 0.6 0.6/ 1.1 5 None 25/11 AM 3.0/ 3.5 0.2/ 0.8 1.0/ 1.5 6 None 26/09 AM 4.7/ 5.2 2.1/ 2.6 2.7/ 3.2 7-8 Moderate 26/11 PM 3.5/ 4.0 0.8/ 1.3 1.6/ 2.0 5 None 27/10 AM 3.4/ 3.9 0.7/ 1.1 1.1/ 1.6 4-5 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 -------- --------- --------- --------- ------- -------- 24/11 PM 2.2/ 2.7 0.2/ 0.7 0.5/ 1.0 4 None 25/11 AM 2.7/ 3.2 0.7/ 1.1 0.9/ 1.4 4-5 None 26/12 AM 3.9/ 4.4 1.9/ 2.3 2.1/ 2.6 6 None 26/11 AM 4.0/ 4.5 2.0/ 2.5 2.2/ 2.7 5-6 None 27/12 AM 3.2/ 3.7 1.3/ 1.8 1.5/ 2.0 4 None 27/12 PM 2.7/ 3.2 0.8/ 1.3 0.9/ 1.4 3-4 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 -------- --------- --------- --------- ------- -------- 24/11 PM 3.7/ 4.2 0.1/ 0.6 0.4/ 0.9 7-8 None 25/02 PM 4.0/ 4.5 0.4/ 0.9 1.5/ 2.0 8-10 None 26/12 AM 5.6/ 6.1 2.0/ 2.5 2.2/ 2.7 10-11 Minor 26/12 PM 5.6/ 6.1 2.0/ 2.5 2.2/ 2.7 9-10 Minor 27/01 AM 4.7/ 5.2 1.1/ 1.6 1.4/ 1.9 7-8 None 27/01 PM 4.5/ 5.0 0.9/ 1.4 0.9/ 1.4 5-6 None &&
High Wind Warning
Issued: 5:46 AM Sep. 25, 2026 – National Weather Service
...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 2 AM EDT SUNDAY... * WHAT...Northeast winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...Portions of eastern, northeastern, and southeastern Massachusetts and northern and southern Rhode Island. * WHEN...From 8 AM this morning to 2 AM EDT Sunday. * IMPACTS...Damaging winds will blow down branches and power lines. Power outages are expected. Travel may be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People are urged to secure loose objects that could be blown around or damaged by the wind. &&
Storm Warning
Issued: 5:38 AM Sep. 25, 2026 – National Weather Service
...STORM WARNING REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 8 PM EDT SATURDAY... * WHAT...Northeast winds 20 to 30 kt with gusts up to 55 kt and seas 7 to 11 feet expected. * WHERE...Cape Cod Bay. * WHEN...From 8 AM this morning to 8 PM EDT Saturday. * 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. &&
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