Bering Sea storm

57°03.1′N 171°29.1′E

Waves left about 30 Sep 11:18Z, ± 5 h

Placed by 5 buoys, whose own placements lie within 245 nmi of it

Its swell was last measured at 51201 (Waimea Bay, HI) on 7 Oct 22:00Z; 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