South Pacific storm

12°28.9′S 105°25.9′W

Waves left about 19 Oct 05:48Z, ± 12 h

Placed by 2 buoys, whose own placements lie within 509 nmi of it

Its swell was last measured at 46028 (Cape San Martin, CA) on 27 Oct 07:50Z; 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