North Pacific storm

48°24.2′N 162°07.6′W

Waves left about 10 Oct 18:54Z, ± 2 h

Placed by 6 buoys, whose own placements lie within 222 nmi of it

Its swell was last measured at 46082 (Cape Suckling, AK) on 14 Oct 04:50Z; 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