North Pacific storm

47°12.4′N 139°52.9′W

Waves left about 24 Oct 15:09Z, ± 2 h

Placed by 6 buoys, whose own placements lie within 156 nmi of it

Its swell was last measured at 46259 (Santa Lucia Escarpment, CA) on 27 Oct 14:45Z; 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