North Pacific storm

33°09.7′N 166°47.7′W

Waves left about 7 Oct 05:10Z, ± 3 h

Placed by 6 buoys, whose own placements lie within 343 nmi of it

Its swell was last measured at 46215 (Diablo Canyon, CA) on 15 Oct 03:00Z; 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