Bluegraph
SIMarineUS

Storms placed by their swell

North Pacific storm

25°08.8′N 166°33.4′E

Waves left about 5 Nov 00:00Z, ± 5 h

Placed by 2 buoys, whose own placements lie within 355 nmi of it

Its swell was last measured at 46066 (South Kodiak, AK) on 11 Nov 17:20Z; 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