North Atlantic storm

14°33.3′N 047°43.5′W

Waves left about 5 Oct 11:04Z, ± 5 h

Placed by 2 buoys, whose own placements lie within 273 nmi of it

Its swell was last measured at 41043 (NE Puerto Rico) on 8 Oct 11:00Z; 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