Bluegraph
SIMarineUS

Storms placed by their swell

North Pacific storm

44°54.4′N 143°46.0′W

Waves left about 6 Oct 11:36Z, ± 2 h

Placed by 6 buoys, whose own placements lie within 244 nmi of it

Its swell was last measured at 46236 (Monterey Canyon Outer, CA (156)) on 9 Oct 16:00Z; 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