Bluegraph
SIMarineUS

Storms placed by their swell

South Pacific storm

01°20.2′S 150°16.7′W

Waves left about 12 Oct 14:24Z, ± 6 h

Placed by 3 buoys, whose own placements lie within 189 nmi of it

Its swell was last measured at 51211 (Pearl Harbor Entrance, HI (233)) on 17 Oct 02:00Z; 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