DivePredictor

Find your slack window.

Live NOAA tide & current predictions, per-site rules, slack windows you can actually dive. For Pacific Northwest sites.

How to use this: DivePredictor sweeps a wide date range and surfaces the windows that pass each site's slack-current rule. Treat results as candidates, not a plan — before any dive, re-validate the candidate window against detailed NOAA tide and current charts for the site, and check real-time observations on the day-of.

Times are in the dive site's local timezone (Pacific). End date defaults to ~2 months out; 60 days is the hard cap.

How windows are picked for Alki Seacrest Cove 2

  1. 1

    No current filter — every predicted current state is listed.

  2. 2

    Splash whenever suits you.

Exchange = flood peak + ebb peak either side of slack, magnitudes added. Currents from PUG1507.