Bluegraph
SIMarineUS

Storms placed by their swell

Gulf of Mexico storm

29°28.5′N 085°44.8′W

Waves left about 9 Oct 19:01Z, ± 2 h

Placed by 3 buoys, whose own placements lie within 151 nmi of it

Its swell was last measured at 42001 (Mid Gulf) on 11 Oct 20:50Z; 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