Bluegraph
SIMarineUS

Storms placed by their swell

North Pacific storm

22°39.3′N 118°01.4′W

Waves left about 9 Oct 22:51Z, ± 2 h

Placed by 3 buoys, whose own placements lie within 185 nmi of it

Its swell was last measured at 46086 (San Clemente Basin, CA) on 12 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