North Pacific storm

38°56.5′N 160°07.7′W

Waves left about 23 Oct 00:49Z, ± 2 h

Placed by 12 buoys, whose own placements lie within 266 nmi of it

Its swell was last measured at 46236 (Monterey Canyon Outer, CA (156)) on 27 Oct 14:00Z; 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