North Pacific storm

29°06.7′N 137°28.3′W

Waves left about 9 Oct 00:14Z, ± 4 h

Placed by 3 buoys, whose own placements lie within 136 nmi of it

Its swell was last measured at 46025 (Santa Monica Basin, CA) on 14 Oct 03:50Z; 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