North Pacific storm

10°00.4′N 157°18.4′W

Waves left about 11 Oct 06:05Z, ± 4 h

Placed by 4 buoys, whose own placements lie within 393 nmi of it

Its swell was last measured at 46015 (Port Orford, OR) on 17 Oct 14:20Z; 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