North Pacific storm

26°26.4′N 166°29.7′E

Waves left about 22 Oct 02:08Z, ± 5 h

Placed by 5 buoys, whose own placements lie within 408 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