North Pacific storm

34°40.9′N 145°02.0′W

Waves left about 4 Nov 02:18Z, ± 5 h

Placed by 2 buoys, whose own placements lie within 115 nmi of it

Its swell was last measured at 46061 (Seal Rocks, AK) on 8 Nov 22:50Z; 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