North Pacific storm

48°17.9′N 176°53.4′E

Waves left about 2 Oct 21:33Z, ± 4 h

Placed by 7 buoys, whose own placements lie within 305 nmi of it

Its swell was last measured at 46069 (South Santa Rosa Island, CA) on 11 Oct 07:39Z; 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