Back River entrance tidal current predictions

Next slack

Sat 2:34 AMEDT

Next max flood

1.2 ktSat 7:26 AM

Next max ebb

1.1 ktSat 11:01 AM

Knots along the channel: above the line the flood, running in toward WNW (288°); below it the ebb, running out toward ESE (111°). Times are Eastern Daylight Time. Today: slack 1:53 AM, flood 1.1 kt 6:42 AM, slack 8:42 AM, ebb 1.1 kt 10:17 AM, slack 2:16 PM, flood 1.1 kt 7:08 PM, slack 9:15 PM, ebb 1.1 kt 10:52 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.

• Entrance, north of channelSubordinate current station2.5 mi
• Entrance, south of channelSubordinate current station2.7 mi
• Brunswick River Bridge, southeast ofSubordinate current station3.1 mi
• Brunswick River, off Quarantine DockSubordinate current station3.2 mi
• Brunswick, off Prince Street DockSubordinate current station3.3 mi
• Turtle River, off Andrews IslandSubordinate current station5.0 mi
• Turtle River, off Allied Chemical CorpSubordinate current station5.3 mi
• Mackay R., 0.5 mi. N of Troup Creek entranceSubordinate current station5.3 mi

• Tide times at Frederica River Bridge 2.2 mi
• Tide times at St. Simons Light 2.9 mi
• Tide times at Howe Street Pier, Brunswick 3.3 mi
• Forecast for Saint Simon Mills, GA
• Open the live map with tidal currents
• All tidal current stations in Georgia

Tidal current predictions from NOAA’s Center for Operational Oceanographic Products and Services (CO-OPS), station ACT7811, bin 1: original at NOAA. Marine alerts from the National Weather Service.