North Pacific storm

40°12.2′N 158°57.4′W

Waves left about 31 Oct 15:33Z, ± 3 h

Placed by 6 buoys, whose own placements lie within 353 nmi of it

Its swell was last measured at 52212 (Ngaraard, Palau) on 10 Nov 03:00Z; 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