Bluegraph
SIMarineUS

Storms placed by their swell

North Atlantic storm

03°46.7′N 045°57.1′W

Waves left about 19 Oct 19:01Z, ± 11 h

Placed by 3 buoys, whose own placements lie within 167 nmi of it

Its swell was last measured at 42057 (Western Caribbean) on 28 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