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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
50.167 N 171.915 E (50°10'0" N 171°54'54" E)

Site elevation: sea level
Water depth: 4855 m

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

Station 21415
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)

Plot of Water Column Height Data for Station 21415

Data Access

Select Data Type:
Available series:

Select start date:

Select end date:

Water Column Heights:
09/15/2017 00:00:00 to 09/19/2017 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

Description of Measurements

Links which are specific to this station are listed below:

Real Time Data in tabular form for the last forty-five days.

Historical Data & Climatic Summaries for quality controlled data for the current month, previous months, and previous years.

The weekly maintenance report also provides valuable station information.

Note that the payload types and the station locations occasionally change.
Please refer to the NDBC data inventory for the data history of each station.