North Pacific storm

28°58.1′N 148°40.6′E

Waves left about 6 Nov 13:28Z, ± 6 h

Placed by 2 buoys, whose own placements lie within 416 nmi of it

Its swell was last measured at 46072 (Central Aleutians, AK) on 12 Nov 11:22Z; 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