Kagalaska Strait, off Galas Point tidal current predictions

Now

Flood 1.5 ktToward NW (310°)

Next slack

10:16 AMHADT

Next max flood

5.2 kt5:21 AM

Next max ebb

1.2 kt12:18 PM

Knots along the channel: above the line the flood, running in toward NW (310°); below it the ebb, running out toward S (175°). Times are Hawaii-Aleutian Daylight Time. Today: slack 1:42 AM, flood 5.2 kt 5:21 AM, slack 10:16 AM, ebb 1.2 kt 12:18 PM, slack 1:18 PM, flood 4.0 kt 5:12 PM, slack 8:26 PM, ebb 5.0 kt 11:38 PM.

• Small Craft Advisory Small Craft Advisory issued October 1 at 3:43AM AKDT until October 2 at 5:00PM AKDT by NWS Anchorage AKUntil Fri 4:00 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...NE wind 30 kt. Seas 11 ft. .TONIGHT...NE wind 30 kt. Seas 12 ft. .FRI...N wind 25 kt becoming NE 15 kt in the afternoon. Seas 11 ft. .FRI NIGHT...SE wind 25 kt. Seas 8 ft. .SAT THROUGH SUN...W wind 40 kt. Seas 18 ft. .MON...NW wind 30 kt. Seas 10 ft.

• Small Craft Advisory Small Craft Advisory issued September 30 at 3:09PM AKDT until October 2 at 5:00AM AKDT by NWS Anchorage AKUntil Fri 4:00 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 7 ft. Rain. .THU...E wind 25 kt. Seas 10 ft. Rain. .THU NIGHT...NE wind 30 kt. Seas 12 ft. .FRI...NE wind 25 kt. Seas 10 ft. .FRI NIGHT...SE wind 25 kt. Seas 8 ft. .SAT...SW wind 45 kt. Seas 11 ft. .SUN...W wind 45 kt. Seas 15 ft. .MON...W wind 35 kt. Seas 12 ft.

• Small Craft Advisory Small Craft Advisory issued September 30 at 3:43AM AKDT until October 1 at 5:00PM AKDT by NWS Anchorage AKUntil 4:00 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...SE wind 30 kt. Seas 5 ft. Rain. .TONIGHT...SE wind 30 kt. Seas 7 ft. Rain. .THU...E wind 25 kt. Seas 10 ft. Rain. .THU NIGHT...NE wind 30 kt. Seas 12 ft. .FRI...E wind 25 kt. Seas 10 ft. .SAT...SW wind 45 kt. Seas 11 ft. .SUN...W wind 45 kt. Seas 15 ft.

• Small Craft Advisory Small Craft Advisory issued September 29 at 2:30PM AKDT until October 1 at 5:00AM AKDT by NWS Anchorage AKUntil 4:00 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...SW wind 20 kt. Seas 4 ft. Rain. .WED...SE wind 30 kt. Seas 5 ft. Rain. .WED NIGHT...SE wind 30 kt. Seas 6 ft. Rain. .THU...E wind 25 kt. Seas 7 ft. .THU NIGHT...NE wind 30 kt. Seas 11 ft. .FRI...E wind 25 kt. Seas 10 ft. .SAT THROUGH SUN...W wind 35 kt. Seas 10 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.

• Little Tanaga Strait, off Tana PtSubordinate current station7.9 mi
• Umak Pass, off Narrows PointSubordinate current station15 mi
• Chugul Pass, 0.5 mile NE of Cape RuinSubordinate current station21 mi
• Chugul Pass, 2 miles NE of Cape RuinSubordinate current station23 mi
• Adak Strait, off Argonne PointSubordinate current station23 mi
• Chugul Pass, 0.8 mile SW of Tanager PtSubordinate current station25 mi

• Tide times at Laska Cove, Kagalaska Island 1.8 mi
• Tide times at Adak Bight 2.2 mi
• Tide times at Boot Bay 7.7 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 PCT5646, bin 1: original at NOAA. Marine alerts from the National Weather Service.