Gulf of Alaska storm

52°15.8′N 141°22.1′W

Waves left about 24 Oct 02:34Z, ± 1 h

Placed by 10 buoys, whose own placements lie within 270 nmi of it

Its swell was last measured at 46214 (Point Reyes, CA) on 27 Oct 05:00Z; 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