North Pacific storm

23°27.9′N 145°03.4′W

Waves left about 19 Oct 07:02Z, ± 3 h

Placed by 4 buoys, whose own placements lie within 304 nmi of it

Its swell was last measured at 46066 (South Kodiak, AK) on 24 Oct 14:20Z; 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