Bluegraph
SIMarineUS

Storms placed by their swell

North Pacific storm

43°53.7′N 148°16.4′W

Waves left about 24 Oct 05:32Z, ± 1 h

Placed by 6 buoys, whose own placements lie within 242 nmi of it

Its swell was last measured at 46087 (Neah Bay, WA) on 27 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