Weather World
Wide-Am Biddeford Weather Advisory
SHORTTERM FORECAST
Issue Date: 748 PM EDT Sun Sep 27 2026
HIGH SURF ADVISORY NOW IN EFFECT UNTIL 6 PM EDT MONDAY
COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 3 AM EDT MONDAY
WHAT
For the Coastal Flood Advisory, minor coastal flooding with up to 1 foot of inundation and large breaking waves leading to splash over and beach erosion. This is a long duration event
with these impacts felt over multiple tide cycles continuing through this evening, possibly through the Monday daytime high tide. For the High Surf Advisory, large breaking waves of 7 to 12 feet and a high risk of rip currents. WHERE
In Maine, Coastal York County. In New Hampshire, Coastal Rockingham County. WHEN
For the High Surf Advisory, until 6 PM EDT Monday. For the Coastal Flood Advisory, until 3 AM EDT Monday. IMPACTS
Flooding of lots, parks, and roads with only isolated road closures expected. 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. Seavey Island / Portsmouth NH MLLW Categories - Minor 11.5 ft, Moderate 12.5 ft, Major 13.5 ft MHHW Categories - Minor 2.6 ft, Moderate 3.6 ft, Major 4.6 ft Total Total Departure Day/Time Tide Tide from Norm Waves Flood ft MLLW ft MHHW ft ft Impact -------- --------- --------- --------- ------- -------- 28/01 AM 9.9 1.0 1.1 9 None 28/01 PM 10.4 1.5 1.0 8 None 29/01 AM 9.4 0.5 0.8 6 None 29/02 PM 9.7 0.8 0.2 4 None 30/02 AM 8.7 -0.2 0.2 3-4 None Hampton Harbor NH MLLW Categories - Minor 11.0 ft, Moderate 12.0 ft, Major 13.0 ft MHHW Categories - Minor 1.4 ft, Moderate 2.4 ft, Major 3.4 ft Total Total Departure Day/Time Tide Tide from Norm Waves Flood ft MLLW ft MHHW ft ft Impact -------- --------- --------- --------- ------- -------- 28/01 AM 10.3 0.7 1.2 2 None 28/01 PM 10.6 1.0 1.0 2 None 29/01 AM 9.8 0.2 0.8 2 None 29/02 PM 10.1 0.5 0.4 2 None 30/02 AM 9.1 -0.5 0.3 2 None &&
HIGH SURF ADVISORY NOW IN EFFECT UNTIL 6 PM EDT MONDAY
COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 3 AM EDT MONDAY
WHAT
For the Coastal Flood Advisory, minor coastal flooding with up to 1 foot of inundation and large breaking waves leading to splash over and beach erosion. This is a long duration event
with these impacts felt over multiple tide cycles continuing through this evening, possibly through the Monday daytime high tide. For the High Surf Advisory, large breaking waves of 7 to 12 feet and a high risk of rip currents. WHERE
In Maine, Coastal York County. In New Hampshire, Coastal Rockingham County. WHEN
For the High Surf Advisory, until 6 PM EDT Monday. For the Coastal Flood Advisory, until 3 AM EDT Monday. IMPACTS
Flooding of lots, parks, and roads with only isolated road closures expected. 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. Seavey Island / Portsmouth NH MLLW Categories - Minor 11.5 ft, Moderate 12.5 ft, Major 13.5 ft MHHW Categories - Minor 2.6 ft, Moderate 3.6 ft, Major 4.6 ft Total Total Departure Day/Time Tide Tide from Norm Waves Flood ft MLLW ft MHHW ft ft Impact -------- --------- --------- --------- ------- -------- 28/01 AM 9.9 1.0 1.1 9 None 28/01 PM 10.4 1.5 1.0 8 None 29/01 AM 9.4 0.5 0.8 6 None 29/02 PM 9.7 0.8 0.2 4 None 30/02 AM 8.7 -0.2 0.2 3-4 None Hampton Harbor NH MLLW Categories - Minor 11.0 ft, Moderate 12.0 ft, Major 13.0 ft MHHW Categories - Minor 1.4 ft, Moderate 2.4 ft, Major 3.4 ft Total Total Departure Day/Time Tide Tide from Norm Waves Flood ft MLLW ft MHHW ft ft Impact -------- --------- --------- --------- ------- -------- 28/01 AM 10.3 0.7 1.2 2 None 28/01 PM 10.6 1.0 1.0 2 None 29/01 AM 9.8 0.2 0.8 2 None 29/02 PM 10.1 0.5 0.4 2 None 30/02 AM 9.1 -0.5 0.3 2 None &&
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