North Atlantic storm

36°36.9′N 057°05.9′W

Waves left about 16 Oct 16:33Z, ± 3 h

Placed by 4 buoys, whose own placements lie within 218 nmi of it

Its swell was last measured at 42060 (Caribbean Valley) on 20 Oct 03:20Z; 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