North Pacific storm

07°54.1′N 156°36.2′W

Waves left about 23 Oct 22:02Z, ± 10 h

Placed by 2 buoys, whose own placements lie within 91 nmi of it

Its swell was last measured at 46013 (Bodega Bay, CA) on 28 Oct 23:20Z; 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