North Pacific storm

21°29.7′N 143°14.9′E

Waves left about 5 Nov 13:37Z, ± 4 h

Placed by 2 buoys, whose own placements lie within 331 nmi of it

Its swell was last measured at 46035 (Central Bering Sea, AK Offshore) on 12 Nov 10:50Z; 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