Bluegraph
SIMarineUS

Storms placed by their swell

South Pacific storm

01°58.6′S 146°06.8′W

Waves left about 30 Sep 15:32Z, ± 7 h

Placed by 2 buoys, whose own placements lie within 167 nmi of it

Its swell was last measured at 51211 (Pearl Harbor Entrance, HI (233)) on 6 Oct 01:00Z; 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