North Atlantic storm

30°04.2′N 061°05.9′W

Waves left about 8 Nov 03:50Z, ± 3 h

Placed by 3 buoys, whose own placements lie within 115 nmi of it

Its swell was last measured at 42060 (Caribbean Valley) on 11 Nov 16:50Z; 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