Station Name: CONNECTICUT RIVER AT OLD LYME, CT
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 20 feet

Nearest Address:
336 Ferry Rd
Old Lyme, CT 06371
New London County

GPS Coordinates: 41.3125983, -72.3459166

Nearby Water Temperatures

Flood Watch issued July 29 at 3:02AM EDT until July 29 at 2:00PM EDT by NWS Upton NY

Effective: Wed July 29, 2026, 3:02 AM
Expires: Wed July 29, 2026, 2:00 PM

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of southern Connecticut, including the following areas, Northern New London and Southern New London. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - A slow moving low pressure system is bringing periods of heavy showers and thunderstorms to the area this morning. Additional rainfall of 1 to 2 inches, with locally higher amounts, could lead to flooding. - http://www.weather.gov/safety/flood

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.

Small Craft Advisory issued July 29 at 3:03AM EDT until July 29 at 2:00PM EDT by NWS Upton NY

Effective: Wed July 29, 2026, 3:03 AM
Expires: Wed July 29, 2026, 2:00 PM

* WHAT...Southeast winds 10 to 20 kt with gusts up to 25 kt. * WHERE...Long Island Sound east of Port Jefferson and New Haven, and Peconic and Gardiners Bays. * WHEN...Until 2 PM EDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.