Harbor Point tidal current predictions

Now

Flood 0.8 ktToward SSE (158°)

Next slack

10:25 PMAKDT

Next max flood

0.9 kt8:10 PM

Next max ebb

1.8 ktSat 2:24 AM

Knots along the channel: above the line the flood, running in toward SSE (158°); below it the ebb, running out toward NNW (335°). Times are Alaska Daylight Time. Today: ebb 1.8 kt 1:44 AM, slack 5:30 AM, flood 0.8 kt 7:50 AM, slack 10:07 AM, ebb 1.6 kt 1:59 PM, slack 5:44 PM, flood 0.9 kt 8:10 PM, slack 10:25 PM.

• Gale Warning Gale Warning issued September 25 at 3:30PM AKDT until September 26 at 5:00PM AKDT by NWS Anchorage AKUntil Sat 5:00 PM
  Full text

  Coastal Waters Forecast for Southwest Alaska+Bristol Bay+The Alaska Peninsula Waters and the Aleutian Islands up to 100 nm out. Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent an average of the highest one-third of the combined wind wave and swell height. .TONIGHT...S wind 30 kt. Seas 10 ft. Rain showers. .SAT...SW wind 35 kt. Seas 13 ft. Rain showers. .SAT NIGHT...SW wind 30 kt. Seas 13 ft. Rain showers. .SUN...W wind 25 kt. Seas 10 ft. .SUN NIGHT...NW wind 30 kt. Seas 9 ft. .MON...NW wind 30 kt. Seas 10 ft. .TUE...W wind 20 kt. Seas 7 ft. .WED...N wind 15 kt. Seas 4 ft.

• Gale Warning Gale Warning issued September 25 at 5:09AM AKDT until September 26 at 5:00PM AKDT by NWS Anchorage AKUntil Sat 5:00 PM
  Full text

  Coastal Waters Forecast for Southwest Alaska+Bristol Bay+The Alaska Peninsula Waters and the Aleutian Islands up to 100 nm out. Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent an average of the highest one-third of the combined wind wave and swell height. .TODAY...S wind 25 kt. Seas 6 ft building to 10 ft in the afternoon. Rain showers. .TONIGHT...S wind 30 kt. Seas 10 ft. Rain showers. .SAT...SW wind 35 kt. Seas 13 ft. Rain showers. .SAT NIGHT...SW wind 30 kt. Seas 13 ft. .SUN THROUGH MON...NW wind 30 kt. Seas 11 ft. .TUE...W wind 20 kt. Seas 7 ft.

• Small Craft Advisory Small Craft Advisory issued September 24 at 3:09PM AKDT until September 26 at 5:00AM AKDT by NWS Anchorage AKUntil Sat 5:00 AM
  Full text

  Coastal Waters Forecast for Southwest Alaska+Bristol Bay+The Alaska Peninsula Waters and the Aleutian Islands up to 100 nm out. Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent an average of the highest one-third of the combined wind wave and swell height. .TONIGHT...SE wind 30 kt. Seas 6 ft. Rain showers. .FRI...S wind 25 kt. Seas 6 ft building to 10 ft in the afternoon. Rain showers. .FRI NIGHT...S wind 30 kt. Seas 10 ft. Rain showers. .SAT...SW wind 35 kt. Seas 13 ft. .SAT NIGHT...W wind 30 kt. Seas 13 ft. .SUN...W wind 30 kt. Seas 10 ft. .MON...NW wind 25 kt. Seas 7 ft. .TUE...NW wind 20 kt. Seas 7 ft.

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 PointSubordinate current station4.7 mi
• Entrance Point, 3 miles west ofSubordinate current station6.1 mi
• Hague Channel, east of Doe PointSubordinate current station6.6 mi
• Johnston Channel, off Halftide RockSubordinate current station9.1 mi

• Tide times at Port Moller 4.9 mi
• Tide times at Albatross Anchorage, Balboa Bay 23 mi
• Open the live map with tidal currents
• All tidal current stations in Alaska

Tidal current predictions from NOAA’s Center for Operational Oceanographic Products and Services (CO-OPS), station PCT5756, bin 1: original at NOAA. Marine alerts from the National Weather Service.