North Atlantic storm

38°30.8′N 050°56.0′W

Waves left about 23 Oct 07:05Z, ± 4 h

Placed by 4 buoys, whose own placements lie within 194 nmi of it

Its swell was last measured at 44086 (Nags Head, NC) on 27 Oct 17:00Z; 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