Southern Ocean storm

47°34.7′S 172°42.8′E

Waves left about 4 Oct 05:42Z, ± 4 h

Placed by 5 buoys, whose own placements lie within 1066 nmi of it

Its swell was last measured at 51001 (NW Hawaii - 200 NM NW of Kauai) on 16 Oct 10:20Z; 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