Bluegraph
SIMarineUS

Storms placed by their swell

North Atlantic storm

36°50.5′N 070°28.0′W

Waves left about 6 Oct 14:31Z, ± 2 h

Placed by 4 buoys, whose own placements lie within 112 nmi of it

Its swell was last measured at 41046 (East Bahamas) on 9 Oct 14:20Z; 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