North Pacific storm

43°14.6′N 145°57.8′W

Waves left about 30 Oct 06:27Z, ± 3 h

Placed by 5 buoys, whose own placements lie within 285 nmi of it

Its swell was last measured at 46076 (Cape Cleare, AK) on 2 Nov 13:50Z; 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