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Station 46408 (LLNR 984.4) - NIKOLSKI - 212 NM South of Umnak Is, AK

Owned and maintained by National Data Buoy Center
2.6-meter discus buoy
DART II payload
49.677 N 169.825 W (49°40'36" N 169°49'30" W)

Water depth: 5340 m
Watch circle radius: 3788 yards

Important Notice to Mariners

Meteorological Observations from Nearby Stations and Ships Image indicating link to RSS feed of recent meteorological observations near station 46408

DART® Program Description

U.S. Tsunami Warning Centers

Large icon indicates selected station.
yellow diamond Stations with recent data
red diamond Stations with no data in last 8 hours
(24 hours for tsunami stations)
Station 46408

Plot of Water Column Height Data for Station 46408

Data Access

Water Column Heights:
08/31/2026 00:00:00 to 09/04/2026 23:59:59

The data are recorded in pounds per square inch absolute (PSIA), but are displayed in meters of water after applying a constant 670.0 mm of water/PSIA conversion factor.

T = Measurement Type;
     where 1 = 15-minute measurement; 2 = 1-minute measurement; 3 = 15-second measurement