North Pacific storm

34°25.1′N 132°42.0′W

Waves left about 19 Oct 07:53Z, ± 2 h

Placed by 5 buoys, whose own placements lie within 273 nmi of it

Its swell was last measured at 51206 (Hilo, HI) on 24 Oct 21:00Z; 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