South Atlantic storm

20°50.1′S 003°20.2′W

Waves left about 28 Oct 19:19Z, ± 12 h

Placed by 3 buoys, whose own placements lie within 687 nmi of it

Its swell was last measured at 44088 (Virginia Beach Offshore, VA) on 12 Nov 12:00Z; 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