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Atlantic Coast at Watch Hill Cove (IN MLLW)

Highest listed crest 7.35 ftFlood stage 5.0 ft15 crests since 2016

The Atlantic Coast at Watch Hill Cove (IN MLLW) crested above flood stage 15 times among the 15 crests the National Weather Service lists from 2016 to 2024. The highest, 7.35 ft on October 14, 2021, was minor flooding, 2.35 feet above flood stage.

The gauge

Highest listed crest
7.35 ft
October 14, 2021
Flood stage
5.0 ft
Major flooding from 9.5 ft
Crests at major
0
15 above flood stage
Most recent flood crest
January 13, 2024
6.18 ft, minor flooding
Location
Washington County
Near Groton (10.9 mi), New London (12.4 mi)
Identifiers
NWS WHLR1
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 Watch Hill Cove (IN MLLW)
Action stage4.50—The level at which the NWS or its partners begin to take action
Flood stage (minor)5.015Jan 13, 2024Minimal or no property damage, but possibly some public threat
Moderate flood stage8.00—Some inundation of structures and roads near the stream
Major flood stage9.50—Extensive inundation of structures and roads

Every listed crest

15 crests from 2016 to 2024. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Atlantic Coast at Watch Hill Cove (IN MLLW), 2016 to 2024 5678910ft Flood stage 5.0 ftMajor 9.5 ft Feb 9, 2016: 5.22 ft, minor floodingOct 30, 2017: 5.42 ft, minor floodingJan 4, 2018: 5.14 ft, minor floodingMar 2, 2018: 5.06 ft, minor floodingNov 16, 2018: 5.13 ft, minor floodingNov 27, 2018: 5.15 ft, minor floodingJan 20, 2019: 5.30 ft, minor floodingOct 17, 2019: 5.36 ft, minor floodingDec 17, 2020: 5.38 ft, minor floodingJan 16, 2021: 5.14 ft, minor floodingFeb 2, 2021: 5.47 ft, minor floodingOct 14, 2021: 7.35 ft, minor floodingJan 17, 2022: 5.52 ft, minor floodingDec 18, 2023: 5.44 ft, minor floodingJan 13, 2024: 6.18 ft, minor flooding Highest, 7.35 ft, Oct 14, 2021 20202025

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Atlantic Coast at Watch Hill Cove (IN MLLW) 2010s: 8 8 2020s: 7 2010s2020s
  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 Watch Hill Cove (IN MLLW)
1Oct 14, 20217.35+2.35Minor—
2Jan 13, 20246.18+1.18Minor—
3Jan 17, 20225.52+0.52Minor—
4Feb 2, 20215.47+0.47Minor—
5Dec 18, 20235.44+0.44Minor—
6Oct 30, 20175.42+0.42Minor—
7Dec 17, 20205.38+0.38Minor—
8Oct 17, 20195.36+0.36Minor—
9Jan 20, 20195.30+0.30Minor—
10Feb 9, 20165.22+0.22Minor—
11Nov 27, 20185.15+0.15Minor—
12Jan 4, 20185.14+0.14Minor—
13Jan 16, 20215.14+0.14Minor—
14Nov 16, 20185.13+0.13Minor—
15Mar 2, 20185.06+0.06Minor—

Other gauges in Washington County

Flood gauges in Washington County
Narragansett Bay at Quonset Point (IN MLLW)6.015.58 ft, Dec 18, 20232
Wood River Junction5.011.16 ft, Mar 31, 20102
Westerly7.015.00 ft, Sep 21, 19382
Hope Valley5.013.72 ft, Mar 30, 20103

Washington County: every hazard · River floods across the country · Rhode Island

NOAA National Water Prediction Service, gauge WHLR1, 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.