North Pacific storm

43°33.8′N 138°54.1′W

Waves left about 22 Oct 23:36Z, ± 3 h

Placed by 4 buoys, whose own placements lie within 205 nmi of it

Its swell was last measured at 46082 (Cape Suckling, AK) on 25 Oct 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