North Pacific storm

35°31.4′N 142°42.1′E

Waves left about 27 Oct 10:35Z, ± 7 h

Placed by 2 buoys, whose own placements lie within 294 nmi of it

Its swell was last measured at 46072 (Central Aleutians, AK) on 1 Nov 15:20Z; 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