North Pacific storm

26°30.7′N 169°50.9′W

Waves left about 11 Oct 21:59Z, ± 2 h

Placed by 6 buoys, whose own placements lie within 429 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