Gulf of Mexico storm

23°00.2′N 084°43.3′W

Waves left about 3 Oct 13:09Z, ± 3 h

Placed by 2 buoys, whose own placements lie within 38 nmi of it

Its swell was last measured at 42036 (West Tampa, FL) on 5 Oct 15:20Z; 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