North Pacific storm

17°11.6′N 131°11.2′E

Waves left about 4 Oct 02:44Z, ± 3 h

Placed by 5 buoys, whose own placements lie within 232 nmi of it

Its swell was last measured at 46027 (St Georges, CA) on 15 Oct 23:50Z; 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