North Pacific storm

33°14.2′N 137°27.5′W

Waves left about 16 Oct 10:29Z, ± 5 h

Placed by 3 buoys, whose own placements lie within 275 nmi of it

Its swell was last measured at 46053 (East Santa Barbara, CA) on 20 Oct 17:50Z; 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