Cape Chiniak tidal current predictions

Next slack

10:38 PMAKDT

Next max flood

0.5 ktSat 1:18 AM

Next max ebb

0.7 ktSat 6:40 AM

Knots along the channel: above the line the flood, running in toward NNE (12°); below it the ebb, running out toward S (189°). Times are Alaska Daylight Time. Today: flood 0.3 kt 12:52 AM, slack 3:00 AM, ebb 0.6 kt 6:00 AM, slack 10:36 AM, flood 0.6 kt 1:05 PM, slack 3:33 PM, ebb 0.6 kt 5:59 PM, slack 10:38 PM.

• Small Craft Advisory Small Craft Advisory issued September 25 at 2:47PM AKDT until September 27 at 5:00AM AKDT by NWS Anchorage AKUntil Sun 5:00 AM
  Full text

  Coastal Waters Forecast for the Northern Gulf of Alaska Coast up to 100 nm out including Kodiak Island and Cook Inlet. 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 25 kt. Seas 11 ft. .SAT...S wind 25 kt. Seas 10 ft. Rain showers. .SAT NIGHT...SW wind 25 kt. Seas 9 ft. .SUN AND SUN NIGHT...W wind 20 kt. Seas 7 ft. .MON THROUGH TUE...W wind 20 kt. Seas 6 ft. .WED...W wind 15 kt. Seas 4 ft.

• Small Craft Advisory Small Craft Advisory issued September 25 at 4:55AM AKDT until September 26 at 5:00PM AKDT by NWS Anchorage AKUntil Sat 5:00 PM
  Full text

  Coastal Waters Forecast for the Northern Gulf of Alaska Coast up to 100 nm out including Kodiak Island and Cook Inlet. 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 12 ft. Rain showers. .TONIGHT...S wind 25 kt. Seas 11 ft. .SAT...S wind 25 kt. Seas 10 ft. Rain showers. .SAT NIGHT...SW wind 25 kt. Seas 9 ft. .SUN...SW wind 20 kt. Seas 8 ft. .MON THROUGH TUE...W wind 20 kt. Seas 5 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.

• Cliff Point, 1.8miles NE ofHarmonic current station14 mi
• Woody ChannelHarmonic current station16 mi
• Woody Island, north ofHarmonic current station16 mi
• Kodiak Harbor NarrowsHarmonic current station17 mi
• Ugak Bay EntranceHarmonic current station22 mi

• Tide times at Kodiak, St. Paul Harbor 17 mi
• Tide times at Kodiak, Port of Kodiak 17 mi
• Tide times at Kodiak Island 18 mi
• Forecast for Kodiak, AK
• 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 KOD0906, bin 31: original at NOAA. Marine alerts from the National Weather Service.