North Atlantic storm

43°37.3′N 042°36.7′W

Waves left about 6 Nov 13:35Z, ± 6 h

Placed by 2 buoys, whose own placements lie within 213 nmi of it

Its swell was last measured at 42060 (Caribbean Valley) on 11 Nov 06:40Z; 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