Bluegraph
SIMarineUS

Storms placed by their swell

North Pacific storm

32°16.9′N 177°39.4′W

Waves left about 8 Oct 13:51Z, ± 6 h

Placed by 2 buoys, whose own placements lie within 120 nmi of it

Its swell was last measured at 46054 (West Santa Barbara, CA) on 15 Oct 00:01Z; 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