Gulf of Mexico storm

22°36.4′N 085°16.2′W

Waves left about 24 Sep 12:59Z, ± 4 h

Placed by 2 buoys, whose own placements lie within 113 mi of it

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