North Atlantic storm

35°35.3′N 041°41.6′W

Waves left about 14 Oct 10:07Z, ± 5 h

Placed by 4 buoys, whose own placements lie within 193 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