North Atlantic storm

23°56.6′N 042°31.2′W

Waves left about 29 Oct 06:39Z, ± 8 h

Placed by 2 buoys, whose own placements lie within 224 nmi of it

Its swell was last measured at 44011 (Georges Bank, MA) on 2 Nov 13:50Z; 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