New London State Pier tidal current predictions

Now

SlackTurning

Next slack

8:09 AMEDT

Next max flood

0.4 kt10:32 AM

Next max ebb

0.2 kt4:26 AM

Knots along the channel: above the line the flood, running in toward N (358°); below it the ebb, running out toward S (178°). Times are Eastern Daylight Time. Today: slack 2:17 AM, ebb 0.2 kt 4:26 AM, slack 8:09 AM, flood 0.4 kt 10:32 AM, slack 2:28 PM, ebb 0.4 kt 6:49 PM, slack 9:13 PM, flood 0.4 kt 11:13 PM.

None right now. The National Weather Service issues small craft advisories, gale and storm warnings, special marine warnings, dense fog advisories and coastal flood products for water like this.

The flood is the tidal current running in from the sea, the ebb the current running back out. Slack water is the short turn between them, when the current is weakest: the time to cross a strong channel, anchor, or dive. Slack in a channel is not the time of high or low tide; it can come hours after.

Speeds are knots along the channel's main axis, and directions are degrees true toward which the water flows, as NOAA prints its tables. A current against the wind stands the waves up steep and close together.

Predictions are astronomical: the moon and the sun, not the weather. Strong wind, river flow after heavy rain and storm surge all change the real current.

• Fort Trumbull State ParkHarmonic current station0.8 mi
• U.S. Coast Guard AcademyHarmonic current station1.1 mi
• Groton, Thames River, Pier 6Current meter (NOAA PORTS)2.4 mi
• New London Harbor entranceHarmonic current station2.7 mi
• Smith CoveHarmonic current station2.8 mi
• Thames River ApproachHarmonic current station4.4 mi
• Twotree Island ChannelSubordinate current station5.0 mi
• Niantic (Railroad Bridge)Subordinate current station5.1 mi

• Tide times at New London 1.1 mi
• Tide times at Yale boathouse 5.0 mi
• Tide times at Niantic, Niantic River 5.6 mi
• Forecast for New London, CT
• Open the live map with tidal currents
• All tidal current stations in Connecticut

Tidal current predictions from NOAA’s Center for Operational Oceanographic Products and Services (CO-OPS), station LIS1006, bin 14: original at NOAA. Marine alerts from the National Weather Service.