North Pacific storm

10°10.3′N 153°37.4′W

Waves left about 31 Oct 00:14Z, ± 4 h

Placed by 6 buoys, whose own placements lie within 480 nmi of it

Its swell was last measured at 46082 (Cape Suckling, AK) on 9 Nov 06:20Z; 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