North Pacific storm

03°03.6′N 152°38.0′W

Waves left about 21 Oct 14:08Z, ± 4 h

Placed by 3 buoys, whose own placements lie within 357 nmi of it

Its swell was last measured at 46047 (Tanner Bank, CA) on 27 Oct 23:20Z; 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