Bluegraph
SIMarineUS

Storms placed by their swell

Gulf of Mexico storm

23°18.8′N 088°26.3′W

Waves left about 14 Oct 18:18Z, ± 3 h

Placed by 2 buoys, whose own placements lie within 85 nmi of it

Its swell was last measured at 42012 (Orange Beach, AL) on 16 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