North Pacific storm

23°51.5′N 169°01.3′E

Waves left about 22 Oct 04:44Z, ± 4 h

Placed by 6 buoys, whose own placements lie within 537 nmi of it

Its swell is still arriving: last measured at 46014 (Point Arena, CA) on 29 Oct 09:50Z.

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