North Pacific storm

51°38.0′N 165°05.8′W

Waves left about 5 Nov 15:58Z, ± 3 h

Placed by 3 buoys, whose own placements lie within 223 nmi of it

Its swell was last measured at 46229 (Umpqua, OR Offshore) on 10 Nov 04:00Z; 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