Bluegraph
SIMarineUS

Storms placed by their swell

North Pacific storm

34°14.8′N 152°52.4′W

Waves left about 27 Oct 23:30Z, ± 3 h

Placed by 3 buoys, whose own placements lie within 155 nmi of it

Its swell was last measured at 46050 (Stonewall Bank, OR) on 1 Nov 10:50Z; 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