North Atlantic storm

36°10.5′N 065°06.2′W

Waves left about 7 Oct 13:55Z, ± 3 h

Placed by 4 buoys, whose own placements lie within 232 nmi of it

Its swell was last measured at 41009 (Canaveral, FL) on 10 Oct 12:50Z; 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