Gulf of Mexico storm

22°33.1′N 083°35.8′W

Waves left about 22 Sep 20:35Z, ± 5 h

Placed by 2 buoys, whose own placements lie within 153 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