North Atlantic storm

45°28.3′N 045°07.0′W

Waves left about 5 Nov 19:31Z, ± 7 h

Placed by 2 buoys, whose own placements lie within 230 nmi of it

Its swell was last measured at 42060 (Caribbean Valley) on 11 Nov 06:40Z; 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