North Pacific storm

46°06.2′N 154°44.2′W

Waves left about 25 Oct 23:20Z, ± 2 h

Placed by 6 buoys, whose own placements lie within 230 nmi of it

Its swell was last measured at 46042 (Monterey, CA) on 1 Nov 19:20Z; 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