Entrance tidal current predictions

Now

Ebb 0.8 ktToward ESE (103°)

Next slack

Sat 2:53 AMEDT

Next max flood

2.7 ktSat 6:05 AM

Next max ebb

2.3 kt11:08 PM

Knots along the channel: above the line the flood, running in toward W (268°); below it the ebb, running out toward ESE (103°). Times are Eastern Daylight Time. Today: slack 2:12 AM, flood 2.5 kt 5:21 AM, slack 8:38 AM, ebb 2.3 kt 10:33 AM, slack 2:35 PM, flood 2.4 kt 5:47 PM, slack 9:11 PM, ebb 2.3 kt 11:08 PM.

• Small Craft Advisory Small Craft Advisory issued September 25 at 1:46PM EDT until September 25 at 10:00PM EDT by NWS Jacksonville FLUntil 10:00 PM
  Full text

  * WHAT...Seas 5 to 8 ft. * WHERE...Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM. * WHEN...Until 10 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft.

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

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.

• Cumberland River, north entranceSubordinate current station2.5 mi
• Jekyll Creek, south entranceSubordinate current station3.7 mi
• Bar ChannelSubordinate current station9.1 mi
• Brunswick River, off Quarantine DockSubordinate current station9.5 mi
• Entrance, south of channelSubordinate current station9.7 mi
• Cabin Bluff, Cumberland RiverSubordinate current station9.7 mi
• Brunswick River Bridge, southeast ofSubordinate current station9.8 mi
• Entrance, north of channelSubordinate current station10 mi

• Tide times at Raccoon Key Spit 3.6 mi
• Tide times at Cumberland Wharf, Cumberland River 4.6 mi
• Tide times at Jekyll Island Marina, Jekyll Creek 5.0 mi
• Forecast for Jekyll Island, 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 ACT7846, bin 1: original at NOAA. Marine alerts from the National Weather Service.