Active Weather Alerts
Cold Weather Advisory
Issued: 5:57 AM Jan. 30, 2026 – National Weather Service
...COLD WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM EST THIS MORNING... * WHAT...Very cold wind chills as low as 10 below. * WHERE...Cape Cod. * WHEN...Until 11 AM EST this morning. * IMPACTS...The cold wind chills as low as 10 below zero could result in hypothermia if precautions are not taken. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. &&
Winter Storm Watch
Issued: 5:53 AM Jan. 30, 2026 – National Weather Service
...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE SATURDAY NIGHT THROUGH LATE SUNDAY NIGHT... * WHAT...Heavy snow possible. Total snow accumulations between 4 and 8 inches possible. Winds could gust as high as 45 mph. * WHERE...Cape Cod, Martha's Vineyard and Nantucket. * WHEN...From late Saturday night through late Sunday night. * IMPACTS...Travel could be very difficult. Gusty winds could bring down tree branches. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts for updates on this situation. &&
Coastal Flood Watch
Issued: 5:41 AM Jan. 30, 2026 – National Weather Service
...COASTAL FLOOD WATCH REMAINS IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY AFTERNOON... * WHAT...One to two feet of inundation above ground level possible in low-lying areas near shorelines and tidal waterways (3.9 to 13.3 feet Mean Lower Low Water). * WHERE...Eastern Essex MA, Suffolk MA, Eastern Norfolk MA, Eastern Plymouth MA, Barnstable MA, Dukes MA and Nantucket MA Counties. * WHEN...From Sunday morning through Monday afternoon. * IMPACTS...Shallow pockets of flooding less than one foot deep affects the lowest lying areas along the coast, including Morrissey Boulevard in Boston. Most roads remain passable. Flooding up to one foot deep affects coastal roads on the North Shore from Salem to Gloucester and Newburyport. Rough surf will cause flooding on some coastal roads around the time of high tide due to splashover. 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. 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 -------- --------- --------- --------- ------- -------- 30/08 AM 9.7/10.2 0.1/ 0.6 -0.2/ 0.2 3 None 30/09 PM 8.1/ 8.6 -1.6/-1.1 -0.2/ 0.3 2-3 None 31/09 AM 10.2/10.7 0.6/ 1.1 0.1/ 0.6 1-2 None 31/10 PM 8.7/ 9.2 -1.0/-0.5 0.1/ 0.6 1-2 None 01/10 AM 11.3/11.8 1.7/ 2.2 1.0/ 1.5 7-9 Minor 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 -------- --------- --------- --------- ------- -------- 30/09 AM 8.9/ 9.4 -0.7/-0.2 -0.2/ 0.2 3 None 30/09 PM 7.2/ 7.7 -2.3/-1.9 -0.2/ 0.3 2-3 None 31/10 AM 9.3/ 9.8 -0.2/ 0.2 0.1/ 0.6 1 None 31/10 PM 7.8/ 8.3 -1.8/-1.3 0.1/ 0.6 1-2 None 01/11 AM 10.3/10.8 0.8/ 1.3 1.0/ 1.5 4-6 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 -------- --------- --------- --------- ------- -------- 30/08 AM 10.3/10.8 0.0/ 0.5 -0.2/ 0.3 2 None 30/09 PM 8.9/ 9.4 -1.5/-1.0 0.0/ 0.5 2 None 31/09 AM 10.9/11.4 0.6/ 1.1 0.2/ 0.7 1 None 31/10 PM 9.5/10.0 -0.9/-0.4 0.2/ 0.7 1-2 None 01/10 AM 12.0/12.5 1.7/ 2.2 1.1/ 1.6 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 -------- --------- --------- --------- ------- -------- 30/08 AM 10.0/10.5 0.1/ 0.6 -0.2/ 0.3 2 None 30/09 PM 8.7/ 9.2 -1.3/-0.8 0.0/ 0.5 1-2 None 31/09 AM 10.6/11.1 0.7/ 1.1 0.2/ 0.7 1 None 31/10 PM 9.4/ 9.9 -0.6/-0.1 0.2/ 0.7 1-2 None 01/10 AM 11.9/12.4 2.0/ 2.5 1.1/ 1.6 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 -------- --------- --------- --------- ------- -------- 30/09 AM 10.1/10.6 0.2/ 0.7 -0.2/ 0.3 3 None 30/09 PM 8.5/ 9.0 -1.5/-1.0 0.0/ 0.5 2-3 None 31/10 AM 10.7/11.2 0.8/ 1.3 0.2/ 0.7 1-2 None 31/10 PM 9.1/ 9.6 -0.9/-0.4 0.2/ 0.7 1-2 None 01/11 AM 12.0/12.5 2.1/ 2.6 1.4/ 1.9 5-8 Minor 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 -------- --------- --------- --------- ------- -------- 30/08 AM 10.0/10.5 0.2/ 0.8 -0.2/ 0.2 3 None 30/09 PM 8.6/ 9.1 -1.1/-0.7 0.0/ 0.5 3 None 31/10 AM 10.6/11.1 0.9/ 1.4 0.1/ 0.6 1-2 None 31/10 PM 9.1/ 9.6 -0.7/-0.2 0.2/ 0.7 1-2 None 01/11 AM 11.9/12.4 2.2/ 2.7 1.3/ 1.8 6-9 Minor 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 -------- --------- --------- --------- ------- -------- 30/06 AM 2.0/ 2.5 0.0/ 0.5 -0.3/ 0.2 3 None 30/06 PM 1.1/ 1.6 -1.0/-0.5 -0.5/ 0.0 3 None 31/07 AM 2.2/ 2.7 0.2/ 0.8 -0.2/ 0.3 1-2 None 31/07 PM 1.7/ 2.2 -0.3/ 0.2 0.1/ 0.6 1 None 01/07 AM 3.1/ 3.6 1.1/ 1.6 0.7/ 1.1 3-4 None 01/08 PM 3.5/ 4.0 1.5/ 2.0 1.8/ 2.2 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 -------- --------- --------- --------- ------- -------- 30/09 AM 5.7/ 6.2 0.5/ 1.0 -0.2/ 0.3 3-4 None 30/10 PM 4.5/ 5.0 -0.8/-0.2 0.0/ 0.5 3 None 31/10 AM 6.1/ 6.6 0.9/ 1.4 0.1/ 0.6 2 None 31/11 PM 5.0/ 5.5 -0.2/ 0.2 0.2/ 0.7 1-3 None 01/11 AM 7.1/ 7.6 1.9/ 2.3 1.0/ 1.5 7-9 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 -------- --------- --------- --------- ------- -------- 30/09 AM 4.7/ 5.2 0.2/ 0.7 -0.2/ 0.3 3 None 30/10 PM 3.4/ 3.9 -1.1/-0.7 0.0/ 0.5 2-3 None 31/11 AM 4.9/ 5.4 0.4/ 0.9 0.1/ 0.6 1-2 None 31/11 PM 3.7/ 4.2 -0.8/-0.2 0.2/ 0.7 1-3 None 01/12 PM 5.7/ 6.2 1.3/ 1.8 1.0/ 1.5 6-8 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 -------- --------- --------- --------- ------- -------- 30/09 AM 4.0/ 4.5 0.2/ 0.7 -0.2/ 0.2 3 None 30/10 PM 2.7/ 3.2 -1.1/-0.6 0.0/ 0.5 2-3 None 31/10 AM 4.4/ 4.9 0.6/ 1.1 0.2/ 0.7 1 None 31/11 PM 3.2/ 3.7 -0.6/-0.1 0.4/ 0.9 1-2 None 01/11 AM 5.4/ 5.9 1.6/ 2.0 1.2/ 1.7 4-5 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 -------- --------- --------- --------- ------- -------- 30/08 AM 10.3/10.8 0.2/ 0.7 0.0/ 0.5 4 None 30/09 PM 8.8/ 9.3 -1.4/-0.9 0.1/ 0.6 3 None 31/09 AM 10.6/11.1 0.5/ 1.0 0.1/ 0.6 2 None 31/10 PM 9.3/ 9.8 -0.9/-0.4 0.2/ 0.7 1-2 None 01/10 AM 11.8/12.3 1.7/ 2.2 1.1/ 1.6 7-10 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 -------- --------- --------- --------- ------- -------- 30/09 AM 11.1/11.6 0.6/ 1.1 0.2/ 0.7 3 None 30/09 PM 9.5/10.0 -1.1/-0.6 0.2/ 0.7 2-3 None 31/09 AM 11.4/11.9 0.9/ 1.4 0.2/ 0.8 1-2 None 31/10 PM 10.1/10.6 -0.5/ 0.0 0.4/ 0.9 1-2 None 01/10 AM 12.8/13.3 2.2/ 2.7 1.5/ 2.0 4-6 Minor 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 -------- --------- --------- --------- ------- -------- 30/08 AM 9.6/10.1 -0.8/-0.2 0.2/ 0.7 3 None 30/09 PM 8.1/ 8.6 -2.2/-1.8 0.2/ 0.7 2-3 None 31/09 AM 10.0/10.5 -0.3/ 0.2 0.2/ 0.8 1 None 31/10 PM 8.8/ 9.3 -1.6/-1.1 0.5/ 1.0 1-2 None 01/10 AM 11.4/11.9 1.1/ 1.6 1.6/ 2.0 4-6 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 -------- --------- --------- --------- ------- -------- 30/06 AM 4.0/ 4.5 -0.5/ 0.0 -0.5/ 0.0 3 None 30/06 PM 2.7/ 3.2 -1.8/-1.3 -0.9/-0.4 2 None 31/07 AM 4.0/ 4.5 -0.3/ 0.2 -0.3/ 0.2 1 None 31/08 PM 3.5/ 4.0 -1.0/-0.5 0.0/ 0.5 1 None 01/08 AM 4.6/ 5.1 0.2/ 0.7 0.2/ 0.7 3 None 01/08 PM 5.2/ 5.7 0.8/ 1.3 1.2/ 1.7 4 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 -------- --------- --------- --------- ------- -------- 30/09 AM 2.7/ 3.2 0.1/ 0.6 -0.3/ 0.2 3-4 None 30/10 PM 1.7/ 2.2 -1.1/-0.6 -0.2/ 0.2 3 None 31/10 AM 3.2/ 3.7 0.5/ 1.0 0.1/ 0.6 1-2 None 31/11 PM 2.2/ 2.7 -0.6/-0.1 0.2/ 0.7 1-3 None 01/11 AM 4.2/ 4.7 1.5/ 2.0 1.2/ 1.7 5 Minor 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 -------- --------- --------- --------- ------- -------- 30/08 AM 1.7/ 2.2 -0.3/ 0.2 -0.3/ 0.2 3 None 30/09 PM 1.2/ 1.7 -0.9/-0.4 -0.2/ 0.2 2-3 None 31/09 AM 2.1/ 2.6 0.1/ 0.6 0.1/ 0.6 1 None 31/10 PM 1.7/ 2.2 -0.3/ 0.2 0.2/ 0.7 1-2 None 01/11 AM 3.1/ 3.6 1.1/ 1.6 1.1/ 1.6 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 -------- --------- --------- --------- ------- -------- 30/09 AM 3.7/ 4.2 0.2/ 0.7 -0.2/ 0.3 4 None 30/10 PM 2.5/ 3.0 -1.1/-0.7 -0.2/ 0.3 3-4 None 31/10 AM 4.0/ 4.5 0.4/ 0.9 0.1/ 0.6 2 None 31/11 PM 3.0/ 3.5 -0.7/-0.2 0.2/ 0.8 1-3 None 01/12 PM 5.4/ 5.9 1.8/ 2.2 1.5/ 2.0 7-8 Minor &&
Storm Watch
Issued: 5:38 AM Jan. 30, 2026 – National Weather Service
...HEAVY FREEZING SPRAY WARNING NOW IN EFFECT UNTIL 1 AM EST SATURDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... ...STORM WATCH REMAINS IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY NIGHT... * WHAT...For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater may rapidly accumulate on vessels. For the Small Craft Advisory, west winds 15 to 25 kt with gusts up to 30 kt and seas 3 to 4 feet. For the Storm Watch, north winds 35 to 45 kt with gusts up to 50 kt and seas 6 to 9 feet possible. * WHERE...Nantucket Sound. * WHEN...For the Heavy Freezing Spray Warning, until 1 AM EST Saturday. For the Small Craft Advisory, until 10 PM EST this evening. For the Storm Watch, from Sunday morning through late Sunday night. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Storm force winds and hazardous seas could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. Mariners should prepare to remain in port, alter course, and/or secure the vessel before the onset of severe conditions. &&
Heavy Freezing Spray Warning
Issued: 5:38 AM Jan. 30, 2026 – National Weather Service
...HEAVY FREEZING SPRAY WARNING NOW IN EFFECT UNTIL 1 AM EST SATURDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... ...STORM WATCH REMAINS IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY NIGHT... * WHAT...For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater may rapidly accumulate on vessels. For the Small Craft Advisory, west winds 15 to 25 kt with gusts up to 30 kt and seas 3 to 4 feet. For the Storm Watch, north winds 35 to 45 kt with gusts up to 50 kt and seas 6 to 9 feet possible. * WHERE...Nantucket Sound. * WHEN...For the Heavy Freezing Spray Warning, until 1 AM EST Saturday. For the Small Craft Advisory, until 10 PM EST this evening. For the Storm Watch, from Sunday morning through late Sunday night. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Storm force winds and hazardous seas could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. Mariners should prepare to remain in port, alter course, and/or secure the vessel before the onset of severe conditions. &&
Small Craft Advisory
Issued: 5:38 AM Jan. 30, 2026 – National Weather Service
...HEAVY FREEZING SPRAY WARNING NOW IN EFFECT UNTIL 1 AM EST SATURDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... ...STORM WATCH REMAINS IN EFFECT FROM SUNDAY MORNING THROUGH LATE SUNDAY NIGHT... * WHAT...For the Heavy Freezing Spray Warning, heavy freezing spray at a rate of 2 cm per hour or greater may rapidly accumulate on vessels. For the Small Craft Advisory, west winds 15 to 25 kt with gusts up to 30 kt and seas 3 to 4 feet. For the Storm Watch, north winds 35 to 45 kt with gusts up to 50 kt and seas 6 to 9 feet possible. * WHERE...Nantucket Sound. * WHEN...For the Heavy Freezing Spray Warning, until 1 AM EST Saturday. For the Small Craft Advisory, until 10 PM EST this evening. For the Storm Watch, from Sunday morning through late Sunday night. * IMPACTS...Operating a vessel in heavy freezing spray is hazardous. Freezing spray may render mechanical and electronic components inoperative. Rapid ice accretion on decks and superstructures may result in a catastrophic loss of stability. Storm force winds and hazardous seas could capsize or damage vessels and reduce visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should prepare for dangerous accumulation of ice on their vessel. If possible, remain in port, avoid the warning area or conduct mitigation. During freezing spray conditions, the U.S. Coast Guard advises mariners to check and ensure all life-saving devices remain free of ice. Mariners should prepare to remain in port, alter course, and/or secure the vessel before the onset of severe conditions. &&
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