Search
Menu

Explore

Hazards

Analysis

Rankings

Reference

Atlantic Coast at Seavey Island (IN MLLW)

Highest listed crest 12.41 ftFlood stage 11.5 ft1 crests since 2022

The Atlantic Coast at Seavey Island (IN MLLW) crested above flood stage 1 time among the 1 crests the National Weather Service lists from 2022 to 2022. The highest, 12.41 ft on December 23, 2022, was minor flooding, 0.91 feet above flood stage.

The gauge

Highest listed crest
12.41 ft
December 23, 2022
Flood stage
11.5 ft
Major flooding from 13.5 ft
Crests at major
0
1 above flood stage
Most recent flood crest
December 23, 2022
12.41 ft, minor flooding
Location
York County
Near Portsmouth (2.4 mi), Dover (10.3 mi), Somersworth (14.1 mi)
Identifiers
NWS SEIM1
No USGS station

Flood stages

The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.

Flood categories, Atlantic Coast at Seavey Island (IN MLLW)
Action stage10.00—The level at which the NWS or its partners begin to take action
Flood stage (minor)11.51Dec 23, 2022Minimal or no property damage, but possibly some public threat
Moderate flood stage12.50—Some inundation of structures and roads near the stream
Major flood stage13.50—Extensive inundation of structures and roads

Every listed crest

1 crests from 2022 to 2022. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Atlantic Coast at Seavey Island (IN MLLW), 2022 to 2022 11.51212.51313.5ft Flood stage 11.5 ftMajor 13.5 ft Dec 23, 2022: 12.41 ft, minor flooding Highest, 12.41 ft, Dec 23, 2022 20252030
  1. These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
  2. Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.

Highest crests

Highest listed crests, Atlantic Coast at Seavey Island (IN MLLW)
1Dec 23, 202212.41+0.91Minor—

Other gauges in York County

Flood gauges in York County
Atlantic Coast at Saco (IN MLLW)12.814.60 ft, Jan 13, 20241
Cornish13.521.90 ft, Mar 21, 19363

York County: every hazard · River floods across the country · Maine

NOAA National Water Prediction Service, gauge SEIM1, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.