South Pacific storm

11°23.2′S 140°10.5′W

Waves left about 7 Oct 03:17Z, ± 7 h

Placed by 4 buoys, whose own placements lie within 409 nmi of it

Its swell was last measured at 46060 (West Orca Bay, AK) on 19 Oct 11:50Z; 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