North Atlantic storm

30°27.0′N 066°10.7′W

Waves left about 15 Oct 11:02Z, ± 3 h

Placed by 3 buoys, whose own placements lie within 200 nmi of it

Its swell was last measured at 41112 (Fernandina Beach, FL Offshore) on 17 Oct 15:00Z; 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