North Pacific storm

35°11.6′N 172°37.6′W

Waves left about 5 Oct 06:17Z, ± 6 h

Placed by 3 buoys, whose own placements lie within 170 nmi of it

Its swell was last measured at 52216 (Pikareej, Arno Atoll, Marshall Islands) on 11 Oct 17:00Z; 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