North Pacific storm

43°36.7′N 174°03.2′W

Waves left about 2 Nov 17:58Z, ± 2 h

Placed by 4 buoys, whose own placements lie within 164 nmi of it

Its swell was last measured at 46002 (West Oregon) on 6 Nov 10:20Z; 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