Gulf of Alaska storm

53°00.0′N 157°05.8′W

Waves left about 26 Oct 16:45Z, ± 2 h

Placed by 8 buoys, whose own placements lie within 238 nmi of it

Its swell was last measured at 46013 (Bodega Bay, CA) on 1 Nov 19:50Z; 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