North Pacific storm

45°33.2′N 149°16.4′W

Waves left about 22 Oct 21:31Z, ± 2 h

Placed by 4 buoys, whose own placements lie within 238 nmi of it

Its swell was last measured at 46011 (Santa Maria, CA) on 26 Oct 12:50Z; 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