Gulf of Alaska storm

56°43.0′N 156°56.0′W

Waves left about 22 Oct 20:58Z, ± 2 h

Placed by 6 buoys, whose own placements lie within 262 nmi of it

Its swell was last measured at 51004 (SE Hawaii - 200 NM SE of Hilo) on 31 Oct 02:05Z; 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