North Pacific storm

43°11.0′N 169°47.6′W

Waves left about 25 Oct 13:53Z, ± 3 h

Placed by 5 buoys, whose own placements lie within 236 nmi of it

Its swell was last measured at 46219 (San Nicolas Island, CA) on 31 Oct 17:58Z; 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