Gulf of Alaska storm

52°55.8′N 144°13.4′W

Waves left about 29 Oct 04:57Z, ± 4 h

Placed by 5 buoys, whose own placements lie within 295 nmi of it

Its swell was last measured at 51000 (Northern Hawaii One) on 2 Nov 00:20Z; 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