Bluegraph
SIMarineUS

Storms placed by their swell

North Atlantic storm

25°24.2′N 046°36.3′W

Waves left about 1 Oct 15:15Z, ± 4 h

Placed by 3 buoys, whose own placements lie within 77 nmi of it

Its swell was last measured at 44014 (Virginia Beach, VA) on 8 Oct 04:50Z; 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