North Pacific storm

26°53.7′N 117°16.0′W

Waves left about 10 Oct 22:16Z, ± 2 h

Placed by 3 buoys, whose own placements lie within 131 nmi of it

Its swell was last measured at 46082 (Cape Suckling, AK) on 17 Oct 09:20Z; 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