UTSMI Research Pier (midchannel) tidal current predictions

Now

Ebb 1.1 ktToward ESE (122°)

Next slack

Sat 2:20 AMCDT

Next max flood

0.5 ktSat 4:24 AM

Next max ebb

0.7 ktSat 10:10 AM

Knots along the channel: above the line the flood, running in toward WNW (300°); below it the ebb, running out toward ESE (122°). Times are Central Daylight Time. Today: slack 1:31 AM, flood 1.0 kt 4:22 AM, slack 9:42 AM, slack 11:17 AM, flood 1.1 kt 3:30 PM, slack 7:01 PM, ebb 1.1 kt 10:42 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.

• Measured, along the channel
• Predicted

A NOAA PORTS current meter, bin 30. Wind, river flow and storm surge push the real current off the prediction; the meter measures the difference.

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.

• Harbor Island, Aransas ChannelCurrent meter (NOAA PORTS)0.8 mi
• Lydia Ann Channel, S endHarmonic current station1.0 mi
• Corpus Christi Channel UT Marine ScienceCurrent meter (NOAA PORTS)1.3 mi
• Murray ShoalHarmonic current station4.2 mi
• EnbridgeCurrent meter (NOAA PORTS)9.7 mi

• Tide times at Aransas, Aransas Pass 0.8 mi
• Tide times at Port Aransas (H. Caldwell Pier) 0.8 mi
• Tide times at Port Aransas 1.3 mi
• Forecast for Port Aransas, TX
• Open the live map with tidal currents
• All tidal current stations in Texas

Tidal current predictions and real-time current measurements (PORTS) from NOAA’s Center for Operational Oceanographic Products and Services (CO-OPS), station cc0302, bin 30: original at NOAA. Marine alerts from the National Weather Service.