North Atlantic storm

23°56.0′N 055°56.6′W

Waves left about 16 Oct 09:59Z, ± 5 h

Placed by 2 buoys, whose own placements lie within 192 nmi of it

Its swell was last measured at 41046 (East Bahamas) on 18 Oct 13:50Z; 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