North Atlantic storm

48°24.0′N 020°27.5′W

Waves left about 28 Oct 04:55Z, ± 9 h

Placed by 2 buoys, whose own placements lie within 102 nmi of it

Its swell was last measured at 41041 (North Equatorial Two) on 2 Nov 11:50Z; 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