North Pacific storm

38°48.7′N 135°17.3′W

Waves left about 25 Oct 19:57Z, ± 3 h

Placed by 4 buoys, whose own placements lie within 260 nmi of it

Its swell was last measured at 51001 (NW Hawaii - 200 NM NW of Kauai) on 1 Nov 08:20Z; 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