Bluegraph
SIMarineUS

Storms placed by their swell

North Pacific storm

01°02.8′N 133°04.0′W

Waves left about 16 Oct 22:21Z, ± 13 h

Placed by 2 buoys, whose own placements lie within 519 nmi of it

Its swell was last measured at 46089 (Tillamook, OR) on 22 Oct 01:50Z; 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