North Pacific storm

45°43.8′N 135°41.9′W

Waves left about 14 Oct 21:44Z, ± 2 h

Placed by 2 buoys, whose own placements lie within 104 nmi of it

Its swell was last measured at 46027 (St Georges, CA) on 17 Oct 03:20Z; 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