North Pacific storm

24°07.9′N 166°33.4′W

Waves left about 12 Oct 01:56Z, ± 4 h

Placed by 4 buoys, whose own placements lie within 260 nmi of it

Its swell was last measured at 46083 (Fairweather Ground, AK) on 20 Oct 03:50Z; 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