North Pacific storm

37°21.5′N 155°25.7′W

Waves left about 23 Oct 12:57Z, ± 2 h

Placed by 11 buoys, whose own placements lie within 301 nmi of it

Its swell was last measured at 52212 (Ngaraard, Palau) on 1 Nov 16:00Z; 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