North Atlantic storm

38°17.6′N 034°47.5′W

Waves left about 22 Oct 11:51Z, ± 8 h

Placed by 2 buoys, whose own placements lie within 94 nmi of it

Its swell was last measured at 41120 (Cape Hatteras East, NC (250)) on 27 Oct 13:00Z; 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