North Pacific storm

31°50.3′N 162°14.6′W

Waves left about 27 Oct 10:23Z, ± 4 h

Placed by 2 buoys, whose own placements lie within 100 nmi of it

Its swell was last measured at 51003 (Western Hawaii) on 29 Oct 14:08Z; 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