North Atlantic storm

29°21.5′N 048°26.5′W

Waves left about 2 Oct 07:29Z, ± 8 h

Placed by 2 buoys, whose own placements lie within 203 nmi of it

Its swell was last measured at 41047 (NE BAHAMAS - 350 NM ENE of Nassau, Bahamas) on 6 Oct 22:02Z; 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