Atlantic Coast at Dennis Sesuit Harbor (IN MLLW)
Stage at this gauge is reported IN MLLW.
Flood levels
Official flood levels at this gauge: action stage begins at 12.0 ft; minor flooding begins at 13.0 ft; moderate flooding begins at 14.5 ft; major flooding begins at 16.0 ft.
| Action stage | 12.0 ft |
|---|---|
| Minor flooding | 13.0 ft |
| Moderate flooding | 14.5 ft |
| Major flooding | 16.0 ft |
Highest recorded crests
- 16.4 ft on Jan 27, 2015 (historic crest)
- 16.1 ft on Jan 4, 2018 (historic crest)
- 15.2 ft on Mar 2, 2018 (historic crest)
- 15.2 ft on Mar 3, 2018 (historic crest)
What the water does
National Weather Service impact statements for this gauge, in the Weather Service's own words.
| 12.0 ft | Shallow pockets of flooding less than one foot deep affect low lying areas along Cape Cod Bay. Some shoreline roads may be flooded for a short time around high tide from splashover from rough surf. |
|---|---|
| 13.0 ft | Flooding up to one foot deep affects low lying sections along Cape Cod Bay. Somevulnerable coastal roads may impassable for a short time around high tide. |
| 14.0 ft | Some shoreline roads are impassable including River Street in Sandwich and a part of Route 6A in Dennis and Brewster. Flooding 1 to 3 feet deep encroaches, and in some cases, surrounds low lying homes along Cape Cod Bay in Sandwich, Brewster, and Dennis. |
| 15.0 ft | Flooding 2 to 3 feet deep affects many low lying areas including shoreline roads along Cape Cod Bay from Sandwich through Dennis and Brewster. Some low lying homes and roadways becoming surrounded or inundated by deep floodwaters. Parts of Route 6A become impassable. Follow the instructions of local officials and evacuate if asked to do so. |
| 16.0 ft | This is a serious and life threatening flood. Extensive flooding more than 3 feet deep occurs along the Cape Cod Bay shore from Sandwich through Dennis and Brewster. Low lying roads, including parts of Route 6A, are impassable. Buildings near Sandwich Harbor and some buildings around Town Neck Beach are flooded or surrounded by floodwaters. The Sandwich Boardwalk, Marina, and Harbormaster's Shack become flooded. Follow the instructions of local officials and evacuate if asked to do so. |
Forecast office: NWS Norton · River Forecast Center: Northeast River Forecast Center.
A NOAA tide station shares this spot: Sesuit Harbor, with tide predictions and official flood levels.
Atlantic Coast at Dennis Sesuit Harbor (IN MLLW) in your pocket
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Nearby stations and gauges
- Sesuit Harbor NOAA tide station · 0.1 mi
- Herring River at North Harwich NWS gauge · 4.3 mi
- South Yarmouth NOAA tide station · 6.2 mi
- Dennisport NOAA tide station · 6.8 mi
- Barnstable Harbor NOAA tide station · 7.1 mi
- Wychmere Harbor NOAA tide station · 7.6 mi