North Atlantic storm

36°55.3′N 064°21.1′W

Waves left about 15 Oct 13:17Z, ± 3 h

Placed by 3 buoys, whose own placements lie within 186 nmi of it

Its swell was last measured at 42060 (Caribbean Valley) on 17 Oct 21:20Z; 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