Coastal Flood Advisory

Full Alert Message

Coastal Hazard Message National Weather Service Boston/Norton MA 221 AM EDT Fri Aug 22 2025 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT SATURDAY... ...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 6 AM TO 10 AM EDT THIS MORNING... ...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 6 PM TO 10 PM EDT THIS EVENING... * WHAT...Large breaking waves of 10 to 15 feet. Flooding of up to one foot deep on vulnerable coastal roads and some debris on roadways around high tide Friday morning and Friday evening. * WHERE...In Massachusetts, Southern Bristol County. In Rhode Island, Washington and Newport Counties. * WHEN...For the High Surf Advisory, until 8 PM EDT Saturday. For the first Coastal Flood Advisory, from 6 AM to 10 AM EDT this morning. For the second Coastal Flood Advisory, from 6 PM to 10 PM EDT this evening. * IMPACTS...Minor coastal flooding occurs along the most vulnerable shoreline locales in Newport, Portsmouth and Middletown. This includes flooding at parking lots near beaches in Newport, and a portion of Hazard Road. Minor coastal flooding also occurs on several streets in the Common Fence Point area. Dangerous swimming and surfing conditions and localized beach erosion. 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. Inexperienced swimmers should remain out of the water due to dangerous surf conditions. && && Time of high total tides are approximate to the nearest hour. Westerly RI at Watch Hill MLLW Categories - Minor 5.0 ft, Moderate 8.0 ft, Major 9.5 ft MHHW Categories - Minor 2.0 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 -------- --------- --------- --------- ------- -------- 22/08 AM 4.2/ 4.7 1.3/ 1.8 1.7/ 2.2 7-8 None 22/09 PM 4.6/ 5.1 1.6/ 2.0 1.5/ 2.0 4 Minor 23/09 AM 3.7/ 4.2 0.7/ 1.1 1.0/ 1.5 3 None 23/10 PM 3.6/ 4.1 0.6/ 1.1 0.6/ 1.1 3 None 24/10 AM 3.7/ 4.2 0.7/ 1.1 0.8/ 1.3 2 None 24/11 PM 3.6/ 4.1 0.6/ 1.1 0.8/ 1.3 2 None Newport Harbor MLLW Categories - Minor 6.0 ft, Moderate 7.5 ft, Major 9.0 ft MHHW Categories - Minor 2.1 ft, Moderate 3.6 ft, Major 5.1 ft Total Total Departure Day/Time Tide Tide from Norm Waves Flood ft MLLW ft MHHW ft ft Impact -------- --------- --------- --------- ------- -------- 22/08 AM 5.6/ 6.1 1.7/ 2.2 1.6/ 2.0 3 None 22/08 PM 5.9/ 6.4 2.0/ 2.5 1.6/ 2.0 3 Minor 23/08 AM 5.1/ 5.6 1.2/ 1.7 1.1/ 1.6 2 None 23/09 PM 4.9/ 5.4 1.0/ 1.5 0.7/ 1.1 2 None 24/09 AM 4.5/ 5.0 0.6/ 1.1 0.2/ 0.8 2 None 24/10 PM 4.4/ 4.9 0.5/ 1.0 0.4/ 0.9 2 None Newport South Coast Beaches MLLW Categories - Minor 6.0 ft, Moderate 7.5 ft, Major 9.0 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 -------- --------- --------- --------- ------- -------- 22/08 AM 5.2/ 5.7 1.8/ 2.2 1.6/ 2.0 7-9 None 22/08 PM 5.4/ 5.9 1.9/ 2.3 1.5/ 2.0 4-5 None 23/08 AM 4.7/ 5.2 1.3/ 1.8 1.0/ 1.5 3 None 23/09 PM 4.5/ 5.0 1.0/ 1.5 0.6/ 1.1 3 None 24/09 AM 4.0/ 4.5 0.6/ 1.1 0.2/ 0.8 2 None 24/10 PM 4.0/ 4.5 0.6/ 1.1 0.4/ 0.9 2 None Mount Hope Bay near Bristol Point RI MLLW Categories - Minor 7.0 ft, Moderate 9.5 ft, Major 12.0 ft MHHW Categories - Minor 2.5 ft, Moderate 5.0 ft, Major 7.5 ft Total Total Departure Day/Time Tide Tide from Norm Waves Flood ft MLLW ft MHHW ft ft Impact -------- --------- --------- --------- ------- -------- 22/08 AM 5.9/ 6.4 1.4/ 1.9 1.6/ 2.0 3 None 22/08 PM 6.7/ 7.2 2.2/ 2.7 1.7/ 2.2 1 Minor 23/09 AM 5.4/ 5.9 0.9/ 1.4 1.1/ 1.6 1 None 23/09 PM 5.7/ 6.2 1.2/ 1.7 0.8/ 1.3 1-2 None 24/09 AM 4.7/ 5.2 0.2/ 0.7 0.4/ 0.9 1-2 None 24/09 PM 5.1/ 5.6 0.6/ 1.1 0.5/ 1.0 1-2 None Mount Hope Bay near Fall River MA MLLW Categories - Minor 7.0 ft, Moderate 9.5 ft, Major 12.0 ft MHHW Categories - Minor 2.3 ft, Moderate 4.8 ft, Major 7.3 ft Total Total Departure Day/Time Tide Tide from Norm Waves Flood ft MLLW ft MHHW ft ft Impact -------- --------- --------- --------- ------- -------- 22/08 AM 6.4/ 6.9 1.7/ 2.2 1.5/ 2.0 3 None 22/08 PM 6.9/ 7.4 2.2/ 2.7 1.7/ 2.2 1 Minor 23/09 AM 6.2/ 6.7 1.5/ 2.0 1.1/ 1.6 1 None 23/09 PM 6.1/ 6.6 1.4/ 1.9 0.9/ 1.4 1-2 None 24/10 AM 5.4/ 5.9 0.7/ 1.1 0.4/ 0.9 1-2 None 24/10 PM 5.5/ 6.0 0.8/ 1.3 0.5/ 1.0 1-2 None New Bedford Hurricane Barrier MLLW Categories - Minor 6.0 ft, Moderate 7.5 ft, Major 9.5 ft MHHW Categories - Minor 2.1 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 -------- --------- --------- --------- ------- -------- 22/08 AM 5.5/ 6.0 1.6/ 2.0 1.5/ 2.0 3-4 None 22/08 PM 5.9/ 6.4 2.0/ 2.5 1.6/ 2.0 1-2 Minor 23/08 AM 5.1/ 5.6 1.2/ 1.7 1.1/ 1.6 1 None 23/09 PM 4.7/ 5.2 0.9/ 1.4 0.6/ 1.1 2 None 24/09 AM 4.4/ 4.9 0.5/ 1.0 0.2/ 0.8 1-2 None 24/10 PM 4.4/ 4.9 0.5/ 1.0 0.4/ 0.9 2 None Westport MLLW Categories - Minor 6.0 ft, Moderate 8.0 ft, Major 10.0 ft MHHW Categories - Minor 2.5 ft, Moderate 4.5 ft, Major 6.5 ft Total Total Departure Day/Time Tide Tide from Norm Waves Flood ft MLLW ft MHHW ft ft Impact -------- --------- --------- --------- ------- -------- 22/08 AM 5.1/ 5.6 1.6/ 2.0 1.5/ 2.0 6-8 None 22/08 PM 5.2/ 5.7 1.8/ 2.2 1.5/ 2.0 3-4 None 23/09 AM 4.7/ 5.2 1.2/ 1.7 1.0/ 1.5 2 None 23/09 PM 4.4/ 4.9 0.9/ 1.4 0.6/ 1.1 2 None 24/09 AM 4.0/ 4.5 0.6/ 1.1 0.2/ 0.8 2 None 24/10 PM 4.0/ 4.5 0.5/ 1.0 0.4/ 0.9 2 None