Bluegraph
SIMarineUS

Storms placed by their swell

North Pacific storm

02°32.3′N 148°07.8′W

Waves left about 1 Oct 05:07Z, ± 5 h

Placed by 2 buoys, whose own placements lie within 325 nmi of it

Its swell was last measured at 46266 (Del Mar Nearshore, CA) on 10 Oct 14:00Z; 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