North Atlantic storm

55°45.3′N 018°32.7′W

Waves left about 22 Oct 00:53Z, ± 9 h

Placed by 3 buoys, whose own placements lie within 392 nmi of it

Its swell was last measured at 41046 (East Bahamas) on 1 Nov 07:50Z; 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