North Pacific storm

39°54.5′N 165°38.3′E

Waves left about 5 Oct 23:02Z, ± 3 h

Placed by 3 buoys, whose own placements lie within 264 nmi of it

Its swell was last measured at 52214 (Rumung, Yap) on 11 Oct 17:00Z; 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