Station List

Station 21415 (LLNR 984.85) - ATTU - 175 NM South of Attu, AK

Owned and maintained by National Data Buoy Center
2.6-meter discus buoy
DART II payload
50.120 N 171.867 E (50°7'12" N 171°52'1" E)

Water depth: 4775 m
Watch circle radius: 5280 yards

Important Notice to Mariners

Meteorological Observations from Nearby Stations and Ships Image indicating link to RSS feed of recent meteorological observations near station 21415

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 21415

Plot of Water Column Height Data for Station 21415

Data Access

Water Column Heights:
02/12/2025 00:00:00 to 02/16/2025 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