Bluegraph
SIMarineUS

Storms placed by their swell

North Pacific storm

35°09.5′N 133°41.3′W

Waves left about 2 Nov 21:25Z, ± 3 h

Placed by 3 buoys, whose own placements lie within 259 nmi of it

Its swell was last measured at 46041 (Cape Elizabeth, WA) on 5 Nov 09:20Z; 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