North Pacific storm

28°50.6′N 175°55.6′E

Waves left about 5 Oct 21:56Z, ± 3 h

Placed by 5 buoys, whose own placements lie within 430 nmi of it

Its swell was last measured at 46215 (Diablo Canyon, CA) on 15 Oct 02:00Z; 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