Off Jamaica Point tidal current predictions

Now

Ebb 0.2 ktToward SSW (205°)

Next slack

12:29 PMEDT

Next max flood

0.6 kt3:26 PM

Next max ebb

0.6 kt9:18 AM

Knots along the channel: above the line the flood, running in toward N (0°); below it the ebb, running out toward SSW (205°). Times are Eastern Daylight Time. Today: slack 12:32 AM, flood 0.5 kt 3:11 AM, slack 5:57 AM, ebb 0.6 kt 9:18 AM, slack 12:29 PM, flood 0.6 kt 3:26 PM, slack 6:28 PM, ebb 0.7 kt 9:54 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.

• Poplar Point, south ofSubordinate current station4.6 mi
• Cambridge hwy. bridge, W. of Swing SpanSubordinate current station4.7 mi
• Howell Point, 0.5 nmi south ofSubordinate current station7.1 mi
• Martin Point, 0.6 nmi west ofSubordinate current station8.3 mi
• Chlora Point, 0.5 nmi SSW ofSubordinate current station9.2 mi
• Dover BridgeSubordinate current station10 mi
• Ragged Point, 1.5 miles east ofSubordinate current station15 mi
• Holland Point, 2.0 nmi SSW ofSubordinate current station15 mi

• Tide times at Cambridge 5.0 mi
• Tide times at Dover Bridge 10 mi
• Tide times at Oxford 12 mi
• Forecast for Trappe, MD
• Open the live map with tidal currents
• All tidal current stations in Maryland

Tidal current predictions from NOAA’s Center for Operational Oceanographic Products and Services (CO-OPS), station ACT6011, bin 1: original at NOAA. Marine alerts from the National Weather Service.