North Pacific storm

37°33.7′N 164°24.6′W

Waves left about 22 Oct 17:46Z, ± 2 h

Placed by 7 buoys, whose own placements lie within 283 nmi of it

Its swell was last measured at 46215 (Diablo Canyon, CA) on 27 Oct 18:00Z; 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