North Atlantic storm

22°04.1′N 026°05.6′W

Waves left about 11 Oct 15:07Z, ± 10 h

Placed by 2 buoys, whose own placements lie within 103 nmi of it

Its swell was last measured at 42060 (Caribbean Valley) on 18 Oct 16:20Z; 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