Gulf of Alaska storm

51°53.6′N 154°25.1′W

Waves left about 24 Oct 11:47Z, ± 4 h

Placed by 3 buoys, whose own placements lie within 186 nmi of it

Its swell was last measured at 46259 (Santa Lucia Escarpment, CA) on 27 Oct 16:00Z; 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