Gulf of Alaska storm

55°14.5′N 144°57.2′W

Waves left about 23 Oct 15:24Z, ± 1 h

Placed by 6 buoys, whose own placements lie within 279 nmi of it

Its swell was last measured at 46028 (Cape San Martin, CA) on 27 Oct 13:50Z; 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