North Pacific storm

43°54.2′N 149°12.6′W

Waves left about 4 Nov 23:02Z, ± 3 h

Placed by 4 buoys, whose own placements lie within 135 nmi of it

Its swell was last measured at 46061 (Seal Rocks, AK) on 8 Nov 22:50Z; 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