North Passage tidal current predictions

Now

Ebb 0.5 ktToward WSW (239°)

Next slack

5:52 AMAKDT

Next max flood

1.5 kt8:17 AM

Next max ebb

2.6 kt3:44 PM

Knots along the channel: above the line the flood, running in toward E (82°); below it the ebb, running out toward WSW (239°). Times are Alaska Daylight Time. Today: slack 12:08 AM, ebb 2.5 kt 3:25 AM, slack 5:52 AM, flood 1.5 kt 8:17 AM, slack 12:34 PM, ebb 2.6 kt 3:44 PM, slack 6:17 PM, flood 1.4 kt 8:44 PM.

• Small Craft Advisory Small Craft Advisory issued September 26 at 2:58AM AKDT until September 27 at 5:00AM AKDT by NWS Juneau AKUntil Sun 5:00 AM
  Full text

  Southeast Alaska Inside Waters from Dixon Entrance to Skagway Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent the average of the highest one-third of the combined windwave and swell height. .TODAY...SE wind 15 kt. Gusts to 35 kt in the afternoon. Seas building to 4 ft. Rain. .TONIGHT...SE wind 25 kt. Seas 4 ft. Rain. .SUN...SE wind 25 kt. Seas 5 ft. Rain. .SUN NIGHT...SE wind 25 kt. Gusts to 40 kt. Seas 5 ft. Rain. .MON...SE wind 20 kt. Seas 4 ft. .TUE...SE wind 15 kt. Seas 3 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.

• South PassageHarmonic current station5.8 mi
• Glacier Bay entrance, off Point CarolusHarmonic current station5.8 mi
• Glacier Bay entrance, midchannelHarmonic current station6.8 mi
• Glacier Bay entrance, off Point GustavusHarmonic current station7.6 mi
• North Inian Pass, east endHarmonic current station9.5 mi
• South Inian Pass, east endHarmonic current station9.5 mi
• North Inian Pass, middleSubordinate current station9.9 mi
• North Inian Pass, west endHarmonic current station10.0 mi

• Tide times at Mud Bay, Goose Island 8.0 mi
• Tide times at Inian Cove, North Inian Pass 8.4 mi
• Tide times at Point Adolphus 12 mi
• Forecast for Hoonah, 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 SEA0845, bin 32: original at NOAA. Marine alerts from the National Weather Service.