Bluegraph
SIMarineUS

Storms placed by their swell

North Pacific storm

22°13.1′N 169°36.7′W

Waves left about 4 Nov 15:04Z, ± 7 h

Placed by 2 buoys, whose own placements lie within 224 nmi of it

Its swell was last measured at 46073 (Southeast Bering Sea, AK) on 10 Nov 08:40Z; 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