North Pacific storm

05°46.7′N 161°32.9′W

Waves left about 21 Oct 16:36Z, ± 8 h

Placed by 2 buoys, whose own placements lie within 189 nmi of it

Its swell was last measured at 46014 (Point Arena, CA) on 28 Oct 21:50Z; 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