North Pacific storm

50°55.9′N 161°28.0′E

Waves left about 2 Nov 17:56Z, ± 3 h

Placed by 5 buoys, whose own placements lie within 517 nmi of it

Its swell was last measured at 46011 (Santa Maria, CA) on 10 Nov 17:50Z; 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