North Pacific storm

42°55.3′N 167°29.3′E

Waves left about 7 Oct 22:18Z, ± 1 h

Placed by 16 buoys, whose own placements lie within 342 nmi of it

Its swell was last measured at 46022 (Eel River, CA) on 15 Oct 22:50Z; 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