Bluegraph
SIMarineUS

Storms placed by their swell

North Pacific storm

25°20.2′N 151°32.3′E

Waves left about 30 Oct 02:35Z, ± 3 h

Placed by 3 buoys, whose own placements lie within 495 nmi of it

Its swell was last measured at 46054 (West Santa Barbara, CA) on 8 Nov 00:50Z; 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