North Atlantic storm

35°34.6′N 064°41.7′W

Waves left about 9 Oct 01:05Z, ± 6 h

Placed by 2 buoys, whose own placements lie within 108 nmi of it

Its swell was last measured at 41009 (Canaveral, FL) on 14 Oct 12:20Z; 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