North Pacific storm

44°57.1′N 151°16.3′W

Waves left about 14 Oct 16:09Z, ± 3 h

Placed by 4 buoys, whose own placements lie within 52 nmi of it

Its swell was last measured at 46278 (Tillamook Bay South Jetty, OR) on 17 Oct 11:00Z; 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