Active Weather Alerts
Coastal Flood Advisory
Issued: 11:51 AM Feb. 23, 2026 – National Weather Service
...COASTAL FLOOD ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 8 PM EST THIS EVENING... ...COASTAL FLOOD WARNING WILL EXPIRE AT 7 AM EST THIS MORNING... * WHAT...One to two feet of inundation above ground level expected in low-lying areas near shorelines and tidal waterways (3.6 to 13.7 feet Mean Lower Low Water). * WHERE...Eastern Plymouth, Barnstable, Dukes and Nantucket Counties. * WHEN...From 1 PM this afternoon to 8 PM EST this evening. * IMPACTS...Roads remain passable. Low lying areas and roads near Nantucket Harbor, including Easy Street, may experience pockets of shallow flooding less than one foot deep. 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. 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 -------- --------- --------- --------- ------- -------- 23/04 PM 12.0/12.5 2.1/ 2.6 3.2/ 3.7 12-13 Minor 24/04 AM 11.4/11.9 1.5/ 2.0 1.4/ 1.9 8-10 Minor 24/05 PM 9.0/ 9.5 -1.0/-0.5 0.6/ 1.1 4-5 None 25/05 AM 10.2/10.7 0.2/ 0.8 0.2/ 0.8 2 None 25/06 PM 8.6/ 9.1 -1.4/-0.9 0.4/ 0.9 2 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 -------- --------- --------- --------- ------- -------- 23/03 PM 12.0/12.5 2.2/ 2.7 3.4/ 3.9 15-16 Minor 24/04 AM 11.4/11.9 1.7/ 2.2 1.4/ 1.9 9-12 Minor 24/05 PM 9.1/ 9.6 -0.7/-0.2 0.7/ 1.1 4-5 None 25/05 AM 10.3/10.8 0.6/ 1.1 0.4/ 0.9 2-3 None 25/06 PM 8.7/ 9.2 -1.1/-0.6 0.5/ 1.0 2 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 -------- --------- --------- --------- ------- -------- 23/01 PM 3.7/ 4.2 1.8/ 2.2 2.5/ 3.0 6-7 None 24/01 AM 3.4/ 3.9 1.4/ 1.9 1.5/ 2.0 3-4 None 24/01 PM 1.8/ 2.2 -0.2/ 0.2 0.6/ 1.1 2-3 None 25/02 AM 1.9/ 2.3 -0.2/ 0.3 0.0/ 0.5 2 None 25/02 PM 1.8/ 2.2 -0.2/ 0.2 0.7/ 1.1 3 None 26/03 AM 1.7/ 2.2 -0.3/ 0.2 -0.2/ 0.2 3-4 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 -------- --------- --------- --------- ------- -------- 23/04 PM 7.2/ 7.7 2.0/ 2.5 2.7/ 3.2 15-16 None 24/04 AM 6.9/ 7.4 1.7/ 2.2 1.4/ 1.9 9-11 None 24/05 PM 5.1/ 5.6 -0.2/ 0.3 0.8/ 1.3 4-5 None 25/06 AM 5.7/ 6.2 0.6/ 1.1 0.4/ 0.9 2-3 None 25/06 PM 4.4/ 4.9 -0.9/-0.4 0.2/ 0.8 3 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 -------- --------- --------- --------- ------- -------- 23/04 PM 5.2/ 5.7 0.8/ 1.3 1.9/ 2.3 12-13 None 24/05 AM 6.2/ 6.7 1.7/ 2.2 1.6/ 2.0 8-9 None 24/06 PM 4.0/ 4.5 -0.5/ 0.0 0.7/ 1.1 4 None 25/06 AM 4.9/ 5.4 0.4/ 0.9 0.2/ 0.8 2 None 25/07 PM 3.6/ 4.1 -1.0/-0.5 0.2/ 0.8 3 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 -------- --------- --------- --------- ------- -------- 23/05 PM 6.2/ 6.7 2.3/ 2.8 3.4/ 3.9 7 Minor 24/05 AM 5.0/ 5.5 1.2/ 1.7 1.2/ 1.7 4-5 Minor 24/06 PM 3.1/ 3.6 -0.8/-0.2 0.4/ 0.9 2 None 25/06 AM 4.4/ 4.9 0.6/ 1.1 0.5/ 1.0 1-2 None 25/06 PM 3.1/ 3.6 -0.8/-0.2 0.6/ 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 -------- --------- --------- --------- ------- -------- 23/03 PM 12.3/12.8 2.2/ 2.7 3.5/ 4.0 16-18 None 24/04 AM 11.8/12.3 1.7/ 2.2 1.6/ 2.0 10-12 None 24/05 PM 9.4/ 9.9 -0.8/-0.2 0.8/ 1.3 4-6 None 25/05 AM 10.4/10.9 0.2/ 0.8 0.4/ 0.9 2-3 None 25/06 PM 8.7/ 9.2 -1.5/-1.0 0.4/ 0.9 2 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 -------- --------- --------- --------- ------- -------- 23/03 PM 13.5/14.0 3.0/ 3.5 4.2/ 4.7 9-10 Minor 24/04 AM 12.6/13.1 2.1/ 2.6 1.8/ 2.2 6-7 None 24/05 PM 10.1/10.6 -0.5/ 0.0 1.0/ 1.5 3-4 None 25/05 AM 11.2/11.7 0.7/ 1.1 0.6/ 1.1 2 None 25/06 PM 9.5/10.0 -1.1/-0.6 0.6/ 1.1 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 -------- --------- --------- --------- ------- -------- 23/04 PM 12.0/12.5 1.7/ 2.2 4.0/ 4.5 9 Minor 24/04 AM 11.0/11.5 0.7/ 1.1 1.9/ 2.3 6-7 None 24/04 PM 8.4/ 8.9 -2.0/-1.5 1.0/ 1.5 3-4 None 25/05 AM 9.7/10.2 -0.7/-0.2 0.7/ 1.1 2 None 25/06 PM 8.4/ 8.9 -2.0/-1.5 1.1/ 1.6 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 -------- --------- --------- --------- ------- -------- 23/01 PM 5.4/ 5.9 1.0/ 1.5 2.1/ 2.6 5 None 24/01 AM 5.4/ 5.9 1.0/ 1.5 1.3/ 1.8 3 None 24/01 PM 3.4/ 3.9 -1.1/-0.6 0.2/ 0.8 2 None 25/02 AM 3.7/ 4.2 -0.7/-0.2 -0.2/ 0.2 1-2 None 25/03 PM 3.7/ 4.2 -0.8/-0.2 0.6/ 1.1 2-3 None 26/04 AM 3.4/ 3.9 -1.1/-0.6 -0.3/ 0.2 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 -------- --------- --------- --------- ------- -------- 23/02 PM 4.5/ 5.0 1.8/ 2.2 2.8/ 3.4 8 Minor 24/04 AM 4.0/ 4.5 1.3/ 1.8 1.4/ 1.9 4-5 Minor 24/05 PM 2.2/ 2.7 -0.6/-0.1 0.5/ 1.0 3 None 25/06 AM 3.2/ 3.7 0.5/ 1.0 0.4/ 0.9 2 None 25/06 PM 2.2/ 2.7 -0.5/ 0.0 0.6/ 1.1 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 -------- --------- --------- --------- ------- -------- 23/02 PM 3.4/ 3.9 1.4/ 1.9 2.2/ 2.7 6 None 24/04 AM 3.0/ 3.5 1.0/ 1.5 1.3/ 1.8 3 None 24/04 PM 1.8/ 2.2 -0.2/ 0.2 0.7/ 1.1 2 None 25/05 AM 2.1/ 2.6 0.1/ 0.6 0.4/ 0.9 2 None 25/06 PM 1.9/ 2.3 -0.2/ 0.3 0.7/ 1.1 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 -------- --------- --------- --------- ------- -------- 23/04 PM 5.2/ 5.7 1.7/ 2.2 2.7/ 3.2 11-12 Minor 24/05 AM 4.9/ 5.4 1.3/ 1.8 1.3/ 1.8 7-8 Minor 24/06 PM 3.1/ 3.6 -0.6/-0.1 0.5/ 1.0 4-5 None 25/06 AM 4.0/ 4.5 0.4/ 0.9 0.2/ 0.8 3 None 25/06 PM 2.6/ 3.1 -1.1/-0.6 0.2/ 0.8 4-5 None &&
Blizzard Warning
Issued: 8:13 AM Feb. 23, 2026 – National Weather Service
...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 7 AM EST TUESDAY... * WHAT...Blizzard conditions. Additional snow accumulations between 14 and 21 inches. Winds gusting as high as 75 mph. * WHERE...Portions of eastern and southeastern Massachusetts and Rhode Island. * WHEN...Until 7 AM EST Tuesday. * IMPACTS...Visibilities may drop below 1/4 mile due to falling and blowing snow. The strong winds and weight of snow on tree limbs may down power lines and could cause sporadic power outages. Whiteout conditions are expected and will make travel treacherous and potentially life-threatening. Travel could be very difficult to impossible. Areas of blowing snow could significantly reduce visibility. The hazardous conditions could impact the Monday morning and evening commutes. Very strong winds could cause extensive tree damage. PRECAUTIONARY/PREPAREDNESS ACTIONS... Travel should be restricted to emergencies only. If you must travel, have a winter survival kit with you. If you get stranded, stay with your vehicle. &&
Storm Warning
Issued: 8:09 AM Feb. 23, 2026 – National Weather Service
...STORM WARNING REMAINS IN EFFECT UNTIL 1 AM EST TUESDAY... * WHAT...North winds 35 to 55 kt with gusts up to 70 kt and seas 17 to 22 feet. * WHERE...In Massachusetts coastal waters, Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm and Coastal Waters extending out to 25 nm South of Marthas Vineyard and Nantucket. In Rhode Island coastal waters, Coastal Waters from Montauk NY to Marthas Vineyard extending out to 20 nm South of Block Island. * WHEN...Until 1 AM EST Tuesday. * 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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