North Pacific storm

46°56.6′N 132°06.4′W

Waves left about 11 Oct 13:07Z, ± 3 h

Placed by 2 buoys, whose own placements lie within 149 nmi of it

Its swell was last measured at 46014 (Point Arena, CA) on 14 Oct 04:50Z; 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