North Pacific storm

43°31.9′N 166°35.7′W

Waves left about 13 Oct 07:53Z, ± 2 h

Placed by 7 buoys, whose own placements lie within 238 nmi of it

Its swell was last measured at 46069 (South Santa Rosa Island, CA) on 18 Oct 10:50Z; 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