North Pacific storm

43°20.9′N 141°28.4′W

Waves left about 15 Oct 02:29Z, ± 2 h

Placed by 9 buoys, whose own placements lie within 275 nmi of it

Its swell was last measured at 46232 (Point Loma South, CA) on 19 Oct 05:37Z; 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