Tides in Alaska

Baby Pass tidal current predictions

AlaskaNear Akutan, Aleutians East BoroughNOAA UNI1009Harmonic current station22 ft deep

Flooding 0.6 kt now, toward NW (317°), easing. Slack at 6:19 PM, then ebb to 4.0 kt at 9:54 PM.

Now

Today, Fri, Sep 25, at 22 ft deep.

Now
Flood 0.6 ktToward NW (317°)
Next slack
6:19 PMAKDT
Next max flood
3.7 ktSat 3:12 AM
Next max ebb
4.0 kt9:54 PM
-4-202412 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM12 AMSlackNow

Knots along the channel: above the line the flood, running in toward NW (317°); below it the ebb, running out toward SE (129°). Times are Alaska Daylight Time. Today: flood 3.3 kt 2:32 AM, slack 5:24 AM, ebb 4.5 kt 8:43 AM, slack 12:18 PM, flood 3.4 kt 3:06 PM, slack 6:19 PM, ebb 4.0 kt 9:54 PM.

Alerts in force3

National Weather Service marine and coastal products at this station’s position.

  • Gale Warning Gale Warning issued September 25 at 3:30PM AKDT until September 26 at 5:00PM AKDT by NWS Anchorage AKUntil Sat 5:00 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. .TONIGHT...SW wind 45 kt. Seas 18 ft. Rain showers. .SAT...SW wind 40 kt. Seas 20 ft. .SAT NIGHT...W wind 30 kt. Seas 16 ft. .SUN AND SUN NIGHT...NW wind 30 kt. Seas 11 ft. .MON...NW wind 25 kt. Seas 10 ft. .TUE...W wind 20 kt. Seas 5 ft. .WED...E wind 20 kt. Seas 4 ft.

  • Gale Warning Gale Warning issued September 25 at 5:09AM AKDT until September 26 at 5:00PM AKDT by NWS Anchorage AKUntil Sat 5:00 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...SW wind 35 kt. Seas 19 ft. Rain showers. .TONIGHT...SW wind 45 kt. Seas 21 ft. Rain showers. .SAT...SW wind 40 kt. Seas 22 ft. .SAT NIGHT...W wind 35 kt. Seas 16 ft. .SUN...NW wind 30 kt. Seas 11 ft. .MON...NW wind 25 kt. Seas 11 ft. .TUE...W wind 20 kt. Seas 5 ft.

  • Gale Warning Gale Warning issued September 24 at 3:09PM AKDT until September 26 at 5:00AM AKDT by NWS Anchorage AKUntil Sat 5:00 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 35 kt increasing to 45 kt after midnight. Seas 18 ft. Rain showers. .FRI...SW wind 35 kt. Seas 19 ft. Rain showers. .FRI NIGHT...SW wind 45 kt. Seas 21 ft. Rain showers. .SAT...W wind 45 kt. Seas 22 ft. .SAT NIGHT...W wind 35 kt. Seas 16 ft. .SUN...NW wind 25 kt. Seas 10 ft. .MON THROUGH TUE...W wind 20 kt. Seas 6 ft.

7-day current table

Strongest flood this week 4.4 kt, Wed, Sep 30 at 5:49 AM. Strongest ebb 7.3 kt, Thu, Oct 1 at 12:23 AM.

Slack water and maximum currents at Baby Pass, Alaska Daylight Time; knots, and the direction the water runs toward.
TimeEventSpeedToward
Fri, Sep 25
2:32 AMMaximum flood3.3 ktNW (317°)
5:24 AMSlack water
8:43 AMMaximum ebb4.5 ktSE (129°)
12:18 PMSlack water
3:06 PMMaximum flood3.4 ktNW (317°)
6:19 PMSlack water
9:54 PMMaximum ebb4.0 ktSE (129°)
Sat, Sep 26
12:38 AMSlack water
3:12 AMMaximum flood3.7 ktNW (317°)
6:19 AMSlack water
9:34 AMMaximum ebb4.3 ktSE (129°)
12:53 PMSlack water
3:26 PMMaximum flood3.6 ktNW (317°)
6:41 PMSlack water
10:09 PMMaximum ebb4.7 ktSE (129°)
Sun, Sep 27
1:17 AMSlack water
3:51 AMMaximum flood4.0 ktNW (317°)
7:13 AMSlack water
10:21 AMMaximum ebb3.9 ktSE (129°)
1:26 PMSlack water
3:55 PMMaximum flood3.8 ktNW (317°)
7:04 PMSlack water
10:32 PMMaximum ebb5.5 ktSE (129°)
Mon, Sep 28
1:57 AMSlack water
4:29 AMMaximum flood4.2 ktNW (317°)
8:07 AMSlack water
11:03 AMMaximum ebb3.6 ktSE (129°)
2:00 PMSlack water
4:29 PMMaximum flood4.0 ktNW (317°)
7:32 PMSlack water
11:04 PMMaximum ebb6.3 ktSE (129°)
Tue, Sep 29
2:37 AMSlack water
5:08 AMMaximum flood4.4 ktNW (317°)
9:03 AMSlack water
11:44 AMMaximum ebb3.2 ktSE (129°)
2:36 PMSlack water
5:08 PMMaximum flood4.1 ktNW (317°)
8:05 PMSlack water
11:41 PMMaximum ebb6.9 ktSE (129°)
Wed, Sep 30
3:20 AMSlack water
5:49 AMMaximum flood4.4 ktNW (317°)
10:01 AMSlack water
12:30 PMMaximum ebb2.8 ktSE (129°)
3:17 PMSlack water
5:50 PMMaximum flood4.0 ktNW (317°)
8:44 PMSlack water
Thu, Oct 1
12:23 AMMaximum ebb7.3 ktSE (129°)
4:07 AMSlack water
6:35 AMMaximum flood4.3 ktNW (317°)
11:00 AMSlack water
1:22 PMMaximum ebb2.5 ktSE (129°)
4:02 PMSlack water
6:37 PMMaximum flood3.8 ktNW (317°)
9:30 PMSlack water

Other depths

NOAA predicts the current at more than one depth here. This page is for the shallowest; the water deeper down turns at different times and runs at different speeds.

DepthStrongest flood todayStrongest ebb today
22 ft3.4 kt 3:06 PM4.5 kt 8:43 AM
87 ft3.6 kt 3:14 PM4.1 kt 9:03 AM
133 ft3.1 kt 3:20 PM3.5 kt 9:09 AM

What this means

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.

Nearby8

The closest other NOAA current stations, nearest first.

More for this place

Sources

Tidal current predictions from NOAA’s Center for Operational Oceanographic Products and Services (CO-OPS), station UNI1009, bin 18: original at NOAA. Marine alerts from the National Weather Service.