North Atlantic storm

43°43.0′N 047°45.1′W

Waves left about 20 Oct 03:13Z, ± 6 h

Placed by 2 buoys, whose own placements lie within 208 nmi of it

Its swell was last measured at 44014 (Virginia Beach, VA) on 24 Oct 11:20Z; 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