Bluegraph
SIMarineUS

Storms placed by their swell

North Pacific storm

22°53.7′N 159°12.0′W

Waves left about 14 Oct 17:56Z, ± 6 h

Placed by 2 buoys, whose own placements lie within 401 nmi of it

Its swell was last measured at 46232 (Point Loma South, CA) on 19 Oct 19:40Z; 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