North Pacific storm

48°11.9′N 148°43.0′W

Waves left about 23 Oct 16:18Z, ± 1 h

Placed by 8 buoys, whose own placements lie within 188 nmi of it

Its swell was last measured at 46069 (South Santa Rosa Island, CA) on 27 Oct 22:20Z; 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