RIVER GAUGE · ATLANTIC COAST
Atlantic Coast at Chatham Harbor (IN MLLW)
Barnstable County, Massachusetts
Water level2.49 ft
Flow—
Last readingSep 16, 2026, 5:00 PM UTC (last recorded)
Action8 ft
Minor flood9 ft
Moderate flood11.5 ft
Major flood13 ft
The past week
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What floods at each level
- 13 ft
Significant flooding of low lying coastal areas is expected from Chatham northward along the east shore of the Cape. Immediate coastal roads will be flooded for a time near high tide and significant beach erosion is likely. Localized evacuations of the most vulnerable coastal areas may be required.
- 9 ft
Flooding of lowest lying coastal areas is likely. Some immediate coastal roads may be flooded nearest the time of high tide. Large swells may also produce some localized beach erosion.
Highest crests on record
| Date | Level | Flow |
|---|---|---|
| Jan 2, 2014 | 9.76 ft | — |
| Feb 8, 2013 | 9.69 ft | — |
| Jan 29, 2018 | 8.81 ft | — |
More on Atlantic Coast
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