Bear Cape and Zaikof Point, between tidal current predictions

Next slack

2:49 AMAKDT

Next max flood

0.5 kt7:05 AM

Next max ebb

0.5 kt11:01 AM

Knots along the channel: above the line the flood, running in toward N (352°); below it the ebb, running out toward SSE (162°). Times are Alaska Daylight Time. Today: slack 2:49 AM, flood 0.5 kt 7:05 AM, slack 8:51 AM, ebb 0.5 kt 11:01 AM, slack 2:48 PM, flood 0.3 kt 5:01 PM, slack 7:20 PM, ebb 1.1 kt 10:53 PM.

• Gale Warning Gale Warning issued October 3 at 3:31PM AKDT until October 4 at 5:00AM AKDT by NWS Anchorage AKUntil 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...E wind 40 kt. Seas 10 ft. Widespread rain showers. .SUN...E wind 25 kt. Seas 6 ft subsiding to 3 ft in the afternoon. Widespread rain showers. .SUN NIGHT...S wind 20 kt. Seas 3 ft. Widespread rain showers. .MON AND MON NIGHT...E wind 20 kt. Seas 4 ft. .TUE...E wind 20 kt. Seas 4 ft. .WED THROUGH THU...E wind 15 kt. Seas 3 ft.

• Gale Warning Gale Warning issued October 3 at 4:12AM AKDT until October 4 at 5:00AM AKDT by NWS Anchorage AKUntil 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. .TODAY...NE wind 15 kt increasing to 30 kt late morning. Seas 3 ft building to 7 ft in the afternoon. Rain. .TONIGHT...E wind 40 kt. Seas 10 ft. Widespread rain showers. .SUN...E wind 25 kt. Seas 7 ft. Widespread rain showers. .SUN NIGHT...SE wind 20 kt. Seas 4 ft. .MON THROUGH TUE...E wind 20 kt. Seas 4 ft. .WED...E wind 15 kt. Seas 3 ft.

• Gale Warning Gale Warning issued October 2 at 3:25PM AKDT until October 4 at 5:00AM AKDT by NWS Anchorage AKUntil 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...NE wind 20 kt. Seas 3 ft. .SAT...NE wind 25 kt. Seas 4 ft building to 6 ft in the afternoon. Rain. .SAT NIGHT...E wind 35 kt. Seas 9 ft. Rain. .SUN...E wind 30 kt. Seas 6 ft. .SUN NIGHT...SE wind 15 kt. Seas 3 ft. .MON THROUGH TUE...E wind 20 kt. Seas 4 ft. .WED...E wind 15 kt. Seas 3 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.

• Bear CapeHarmonic current station3.6 mi
• Cape Hinchinbrook, SW of, Hinchinbrook ISubordinate current station8.9 mi
• Montague PointHarmonic current station11 mi
• Johnstone PointHarmonic current station14 mi
• Johnston Point, 7 nmi. northwest ofSubordinate current station17 mi
• Green Island PassHarmonic current station17 mi
• Cape Hinchinbrook ApproachHarmonic current station21 mi
• Middle Ground Shoal, north ofHarmonic current station23 mi

• Tide times at Cape Hinchinbrook 7.6 mi
• Tide times at Port Etches 9.1 mi
• Tide times at Johnstone Point 14 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 PCT4471, bin 1: original at NOAA. Marine alerts from the National Weather Service.