North Pacific storm

33°13.8′N 176°18.6′W

Waves left about 23 Oct 09:30Z, ± 4 h

Placed by 4 buoys, whose own placements lie within 171 nmi of it

Its swell was last measured at 46059 (West California) on 28 Oct 18:20Z; 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