North Pacific storm

42°52.0′N 148°16.6′W

Waves left about 2 Nov 05:31Z, ± 2 h

Placed by 8 buoys, whose own placements lie within 203 nmi of it

Its swell was last measured at 46054 (West Santa Barbara, CA) on 6 Nov 15:50Z; 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