Gulf of Alaska storm

54°00.4′N 150°42.7′W

Waves left about 24 Oct 14:51Z, ± 2 h

Placed by 3 buoys, whose own placements lie within 224 nmi of it

Its swell was last measured at 46059 (West California) on 28 Oct 16:47Z; 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