North Pacific storm

41°22.7′N 163°54.5′E

Waves left about 23 Oct 04:44Z, ± 3 h

Placed by 5 buoys, whose own placements lie within 407 nmi of it

Its swell was last measured at 51003 (Western Hawaii) on 29 Oct 17:50Z; 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