North Pacific storm

27°48.2′N 131°30.4′W

Waves left about 14 Oct 14:37Z, ± 4 h

Placed by 3 buoys, whose own placements lie within 261 nmi of it

Its swell was last measured at 46015 (Port Orford, OR) on 17 Oct 03:37Z; 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