North Pacific storm

18°43.3′N 118°08.4′W

Waves left about 4 Oct 15:48Z, ± 4 h

Placed by 3 buoys, whose own placements lie within 227 nmi of it

Its swell was last measured at 46225 (Torrey Pines Outer, CA) on 7 Oct 13:00Z; 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