Gulf of Alaska storm

58°05.5′N 145°20.2′W

Waves left about 2 Oct 02:45Z, ± 6 h

Placed by 3 buoys, whose own placements lie within 296 nmi of it

Its swell was last measured at 51202 (Mokapu Point, Oahu, HI) on 9 Oct 10:00Z; 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