North Atlantic storm

32°27.4′N 040°54.2′W

Waves left about 14 Oct 14:11Z, ± 4 h

Placed by 3 buoys, whose own placements lie within 229 nmi of it

Its swell was last measured at 41044 (NE St Martin) on 20 Oct 23:50Z; 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