North Pacific storm

01°11.2′N 149°20.8′W

Waves left about 22 Oct 01:21Z, ± 4 h

Placed by 4 buoys, whose own placements lie within 378 nmi of it

Its swell was last measured at 46026 (San Francisco, CA) on 29 Oct 06:20Z; 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