North Pacific storm

45°13.9′N 134°04.6′W

Waves left about 23 Oct 08:51Z, ± 2 h

Placed by 5 buoys, whose own placements lie within 227 nmi of it

Its swell was last measured at 46013 (Bodega Bay, CA) on 26 Oct 12:50Z; 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