North Pacific storm

46°59.5′N 173°37.9′W

Waves left about 4 Nov 18:01Z, ± 3 h

Placed by 5 buoys, whose own placements lie within 237 nmi of it

Its swell was last measured at 46042 (Monterey, CA) on 10 Nov 04:50Z; 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