Bluegraph
SIMarineUS

Storms placed by their swell

Caribbean Sea storm

17°15.8′N 079°51.1′W

Waves left about 1 Oct 07:31Z, ± 4 h

Placed by 2 buoys, whose own placements lie within 223 nmi of it

Its swell was last measured at 42036 (West Tampa, FL) on 4 Oct 15:50Z; 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