Bluegraph
SIMarineUS

Storms placed by their swell

North Atlantic storm

29°13.4′N 066°15.1′W

Waves left about 8 Nov 07:12Z, ± 3 h

Placed by 3 buoys, whose own placements lie within 249 nmi of it

Its swell was last measured at 44025 (Long Island, NY) on 12 Nov 08:10Z; 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