Gulf of Alaska storm

53°30.0′N 150°17.0′W

Waves left about 23 Oct 09:31Z, ± 2 h

Placed by 5 buoys, whose own placements lie within 268 nmi of it

Its swell was last measured at 46042 (Monterey, CA) on 27 Oct 22:20Z; the replay ends there.

Each buoy places the storm from how its swell's period shortened as it arrived: the longest waves travel fastest. Fronts are drawn at deep-water group speeds along great circles, and stop at land. How it is worked out