Mayport tidal current predictions

Now

Flood 0.2 ktToward SSW (211°)

Next slack

10:56 AMEDT

Next max flood

2.3 kt8:56 PM

Next max ebb

3.7 kt1:19 PM

Knots along the channel: above the line the flood, running in toward SSW (211°); below it the ebb, running out toward NNE (26°). Times are Eastern Daylight Time. Today: ebb 3.5 kt 12:56 AM, slack 4:53 AM, flood 2.6 kt 8:33 AM, slack 10:56 AM, ebb 3.7 kt 1:19 PM, slack 5:28 PM, flood 2.3 kt 8:56 PM, slack 11:12 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. This is a subordinate station: NOAA predicts it from a nearby harmonic station by fixed corrections to the times and speeds of its slack waters and maxima, so the curve between them is less exact.

• Mile Point LB 20Harmonic current station0.8 mi
• Mile Point, LB 22Current meter (NOAA PORTS)0.8 mi
• ICW IntersectionHarmonic current station1.5 mi
• Sisters Creek entrance (bridge)Subordinate current station1.7 mi
• St. Johns Bar Cut, 0.7 nmi east of jettiesHarmonic current station2.2 mi
• Mayport Basin EntranceHarmonic current station2.3 mi
• St. Johns River Entrance (between jetties)Harmonic current station2.9 mi
• Bar Cut, 0.6 nmi ENE of St. John's PointHarmonic current station3.6 mi

• Tide times at Mayport (Ferry Depot) 0.1 mi
• Tide times at Mayport (Bar Pilots Dock) 0.5 mi
• Tide times at Mayport Naval Station, Water Treatment Dock 1.3 mi
• Forecast for Atlantic Beach, FL
• Open the live map with tidal currents
• All tidal current stations in Florida

Tidal current predictions from NOAA’s Center for Operational Oceanographic Products and Services (CO-OPS), station ACT7971, bin 1: original at NOAA. Marine alerts from the National Weather Service.