North Atlantic storm

60°46.0′N 006°42.3′W

Waves left about 7 Oct 07:25Z, ± 11 h

Placed by 2 buoys, whose own placements lie within 225 nmi of it

Its swell was last measured at 41041 (North Equatorial Two) on 14 Oct 20:20Z; 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