Gulf of Alaska storm

51°50.4′N 141°26.2′W

Waves left about 24 Oct 04:10Z, ± 1 h

Placed by 8 buoys, whose own placements lie within 278 nmi of it

Its swell was last measured at 46069 (South Santa Rosa Island, CA) on 27 Oct 22:20Z; 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