North Pacific storm

25°39.7′N 169°12.0′E

Waves left about 22 Oct 07:25Z, ± 4 h

Placed by 5 buoys, whose own placements lie within 325 nmi of it

Its swell was last measured at 46050 (Stonewall Bank, OR) on 28 Oct 19:50Z; 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