Chinitna Point, southeast of tidal current predictions

Now

Ebb 1.0 ktToward SSW (209°)

Next slack

2:26 PMAKDT

Next max flood

1.1 kt5:48 PM

Next max ebb

1.7 kt11:44 PM

Knots along the channel: above the line the flood, running in toward NNE (21°); below it the ebb, running out toward SSW (209°). Times are Alaska Daylight Time. Today: slack 2:10 AM, flood 1.6 kt 5:45 AM, slack 9:09 AM, ebb 1.3 kt 11:38 AM, slack 2:26 PM, flood 1.1 kt 5:48 PM, slack 8:47 PM, ebb 1.7 kt 11:44 PM.

• Small Craft Advisory Small Craft Advisory issued September 30 at 3:41AM AKDT until October 1 at 5:00PM AKDT by NWS Anchorage AKUntil Thu 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...W wind 25 kt. Seas 6 ft. .TONIGHT...W wind 25 kt. Seas 7 ft. .THU...W wind 25 kt. Seas 6 ft. .THU NIGHT...NW wind 15 kt. Seas 3 ft. .FRI THROUGH SAT...NE wind 40 kt. Seas 10 ft. .SUN...E wind 25 kt. Seas 5 ft.

• Small Craft Advisory Small Craft Advisory issued September 29 at 2:32PM AKDT until October 1 at 5:00AM AKDT by NWS Anchorage AKUntil Thu 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...W wind 25 kt. Seas 7 ft. .WED...W wind 20 kt. Seas 5 ft. .WED NIGHT...W wind 25 kt. Seas 5 ft. .THU...NW wind 20 kt. Seas 5 ft. .THU NIGHT...NW wind 15 kt. Seas 4 ft. .FRI THROUGH SAT...NE wind 30 kt. Seas 9 ft. .SUN...NW wind 25 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. 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.

• Augustine IslandHarmonic current station19 mi
• Kachemak Bay, west ofSubordinate current station19 mi
• Iniskin BaySubordinate current station23 mi
• Kachemak Bay, southwest ofHarmonic current station24 mi
• Anchor Point, 15nm west ofHarmonic current station24 mi

• Tide times at Oil Bay, Kamishak Bay 16 mi
• Tide times at Southwest Iniskin 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 PCT4896, bin 1: original at NOAA. Marine alerts from the National Weather Service.