Yantic River at Yantic, CT

River level and flood forecast · New London County

Normal3.7 ftas of Mon 11:45 PM

The river is 5.3 ft below flood stage (9 ft).

Forecast to fall to 2.1 ft by Thu, Oct 15, 8 AM.

Flow: 437 cubic feet per second (USGS).

Much higher than normal for October 13.

Usual for October 13: 15 to 76 cubic feet per second (the middle half of 97 years).

The last 7 days and the forecast

024681012WedThuFriSatSunMonTueWedThuAction 7.5 ftFlood 9 ftModerate 9.5 ftMajor 11 ftNowObserved (ft)NWS forecast

NWS forecast issued Mon, Oct 12, 11:14 AM. Forecasts change as rain falls and as upstream water arrives.

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Flood stages

Major flood stage11 ft
Moderate flood stage9.5 ft
Flood stage9 ft
Action stage7.5 ft
Record crest (June 5, 1982)14.88 ft

What floods at each level

From the National Weather Service, highest first.

  • 10 ftFlooding along Otrobando Avenue at the Fitness World, Pleasant Street bridge and along Town Street at the Norwichtown Mall.
  • 9.5 ftFlooding begins at several commercial structures along west Town Street in Yantic Flats.
  • 9 ftFlooding begins along Sturtevant Street.
  • 7.5 ftFlooding begins in the Meadow in Yantic Flats.

Highest crests on record

  1. 14.88 ft — June 5, 1982
  2. 14.66 ft — September 21, 1938
  3. 13.23 ft — March 30, 2010
  4. 12.74 ft — January 26, 1978
  5. 12.64 ft — January 21, 1979

Recent crests: 12.53 ft (September 26, 2018) · 7.46 ft (August 28, 2011) · 9.3 ft (March 7, 2011) · 13.23 ft (March 30, 2010) · 9.69 ft (February 13, 2008)

Highest flow on record

13,500 cubic feet per second — September 21, 1938. From the USGS's yearly peaks since 1931.

Up and down the river, and nearby

Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (YTCC3); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.