Harbor Island West Tidal Current Predictions, WA

Now

Today, Sat, Sep 26, at 9 ft deep.

Now: Ebb 0.2 ktToward N (1°)
Next slack: 12:19 PMPDT
Next max flood: 0.2 kt2:35 PM
Next max ebb: 0.5 kt9:41 AM

Knots along the channel: above the line the flood, running in toward S (178°); below it the ebb, running out toward N (1°). Times are Pacific Daylight Time. Today: slack 12:40 AM, flood 0.2 kt 3:27 AM, slack 6:15 AM, ebb 0.5 kt 9:41 AM, slack 12:19 PM, flood 0.2 kt 2:35 PM, slack 5:22 PM, ebb 0.5 kt 10:08 PM.

Alerts in force

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

None right now. The National Weather Service issues small craft advisories, gale and storm warnings, special marine warnings, dense fog advisories and coastal flood products for water like this.

7-day current table

Strongest flood this week 0.3 kt, Wed, Sep 30 at 6:00 AM. Strongest ebb 0.7 kt, Wed, Sep 30 at 12:24 AM.

Slack water and maximum currents at Harbor Island West, Pacific Daylight Time; knots, and the direction the water runs toward.
Time	Event	Speed	Toward
Sat, Sep 26
12:40 AM	Slack water
3:27 AM	Maximum flood	0.2 kt	S (178°)
6:15 AM	Slack water
9:41 AM	Maximum ebb	0.5 kt	N (1°)
12:19 PM	Slack water
2:35 PM	Maximum flood	0.2 kt	S (178°)
5:22 PM	Slack water
10:08 PM	Maximum ebb	0.5 kt	N (1°)
Sun, Sep 27
1:21 AM	Slack water
3:58 AM	Maximum flood	0.2 kt	S (178°)
7:03 AM	Slack water
10:24 AM	Maximum ebb	0.4 kt	N (1°)
12:45 PM	Slack water
2:52 PM	Maximum flood	0.3 kt	S (178°)
5:52 PM	Slack water
10:55 PM	Maximum ebb	0.6 kt	N (1°)
Mon, Sep 28
1:58 AM	Slack water
4:36 AM	Maximum flood	0.2 kt	S (178°)
7:50 AM	Slack water
11:09 AM	Maximum ebb	0.4 kt	N (1°)
1:15 PM	Slack water
3:14 PM	Maximum flood	0.3 kt	S (178°)
6:12 PM	Slack water
11:40 PM	Maximum ebb	0.7 kt	N (1°)
Tue, Sep 29
2:35 AM	Slack water
5:18 AM	Maximum flood	0.3 kt	S (178°)
8:38 AM	Slack water
11:53 AM	Maximum ebb	0.3 kt	N (1°)
1:49 PM	Slack water
3:41 PM	Maximum flood	0.3 kt	S (178°)
6:28 PM	Slack water
Wed, Sep 30
12:24 AM	Maximum ebb	0.7 kt	N (1°)
3:17 AM	Slack water
6:00 AM	Maximum flood	0.3 kt	S (178°)
9:29 AM	Slack water
12:35 PM	Maximum ebb	0.3 kt	N (1°)
2:25 PM	Slack water
4:14 PM	Maximum flood	0.3 kt	S (178°)
6:45 PM	Slack water
Thu, Oct 1
1:09 AM	Maximum ebb	0.7 kt	N (1°)
4:06 AM	Slack water
6:44 AM	Maximum flood	0.3 kt	S (178°)
10:21 AM	Slack water
1:17 PM	Maximum ebb	0.2 kt	N (1°)
3:05 PM	Slack water
4:52 PM	Maximum flood	0.2 kt	S (178°)
7:06 PM	Slack water
Fri, Oct 2
2:03 AM	Maximum ebb	0.6 kt	N (1°)
5:05 AM	Slack water
7:37 AM	Maximum flood	0.3 kt	S (178°)
11:10 AM	Slack water
2:06 PM	Maximum ebb	0.1 kt	N (1°)
3:51 PM	Slack water
5:34 PM	Maximum flood	0.2 kt	S (178°)
7:32 PM	Slack 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.

Depth	Strongest flood today	Strongest ebb today
9 ft	0.2 kt 2:35 PM	0.5 kt 10:08 PM
22 ft	0.4 kt 2:13 PM	0.3 kt 9:45 PM

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 PUG1507, bin 13: original at NOAA. Marine alerts from the National Weather Service.