North Pacific storm

40°44.3′N 161°11.5′W

Waves left about 22 Oct 23:20Z, ± 2 h

Placed by 5 buoys, whose own placements lie within 196 nmi of it

Its swell was last measured at 46259 (Santa Lucia Escarpment, CA) on 27 Oct 16:00Z; 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