North Atlantic storm

42°19.2′N 051°28.0′W

Waves left about 14 Oct 06:16Z, ± 4 h

Placed by 3 buoys, whose own placements lie within 163 nmi of it

Its swell was last measured at 41046 (East Bahamas) on 18 Oct 16:20Z; 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