Heceta Head tidal current predictions

Next slack

Sat 2:23 AMPDT

Next max flood

1.6 ktSat 11:33 AM

Next max ebb

1.6 ktSat 5:39 AM

Knots along the channel: above the line the flood, running in toward N (5°); below it the ebb, running out toward S (185°). Times are Pacific Daylight Time. Today: slack 1:38 AM, ebb 1.5 kt 5:02 AM, slack 7:58 AM, flood 1.5 kt 11:14 AM, slack 2:11 PM, ebb 1.5 kt 5:27 PM, slack 8:22 PM, flood 1.4 kt 11:25 PM.

• Small Craft Advisory Small Craft Advisory issued September 25 at 5:48PM PDT until September 27 at 5:00AM PDT by NWS Portland ORUntil Sun 5:00 AM
  Full text

  * WHAT...For the first Small Craft Advisory, seas 7 to 9 ft at 9 seconds and northwest winds 5 to 10 kt. For the second Small Craft Advisory, seas 5 to 8 ft at 8 seconds and north winds 10 to 20 kt with gusts up to 25 kt expected. * WHERE...Coastal waters from Cape Foulweather to Florence OR out 10 NM and Waters from Cape Foulweather to Florence OR from 10 to 60 NM. * WHEN...Small Craft Advisory, until 11 PM PDT this evening. Small Craft Advisory, from 2 PM Saturday to 5 AM PDT Sunday. * 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.

• Tide times at Siuslaw River Entrance 8.1 mi
• Tide times at Florence USCG Pier, Siuslaw River 9.1 mi
• Tide times at Cushman, Siuslaw River 11 mi
• Forecast for Florence, OR
• Open the live map with tidal currents
• All tidal current stations in Oregon

Tidal current predictions from NOAA’s Center for Operational Oceanographic Products and Services (CO-OPS), station PCT1071, bin 1: original at NOAA. Marine alerts from the National Weather Service.