Bluegraph
SIMarineUS

Storms placed by their swell

South Pacific storm

22°33.4′S 133°42.5′W

Waves left about 13 Oct 06:15Z, ± 7 h

Placed by 6 buoys, whose own placements lie within 527 nmi of it

Its swell was last measured at 46047 (Tanner Bank, CA) on 21 Oct 23:50Z; 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