National Ocean Service 
National Oceanic and Atmospheric Administration 
US Department of Commerce 
Rockwall Bldg. 
11400 Rockville Pike 
Rockville, MD 20852 
(301) 443-8858, FTS 443-8858 
Publications 
Tide Tables 
Publication Interval: Annual publication of advance tide predictions 
Location: About 200 ports and 6,000 stations worldwide. 
The tide tables are issued in four volumes 
according to geographic regions as follows: 
Europe and west coast of Africa (including 
the Mediterranean Sea) 
East coast of North and South America 
(including Greenland) 
West coast of North and South America 
(including Hawaiian Islands) 
Central and Western Pacific Ocean and Indian 
Ocean 
Period of Coverage: 1853 to present 
Contents: Advance information with respect to the rise and fall of the tide 
is given in the annual tide tables. These tables contain the predicted times 
and heights of high and low waters for every day of the year at a number of 
designated reference stations. By using the published tidal differences, the 
user can calculate the approximate times and heights of the tide at many other 
subordinate stations. 
Up to and including the tide table for the year 1884, all the tide pre- 
dictions were computed by means of auxiliary tables and curves constructed 
from the results of tide observations at the different ports. From 1885 to 
1911, the predictions were made by means of the Ferre] tide-predicting 
machine. From 1912 to 1965, they were made by means of the USCGS tide- 
predicting machine No. 2. Since 1966 predictions have been made by electronic 
computer. 
For the most part, tide predictions for US reference stations are based 
upon analyses of tide observation for periods of at least 1 year. Since the 
extremes of meteorological conditions have been excluded from the analyses and 
predictions, the predicted tidal heights should be considered those expected 
under average weather conditions. 
WA 72 
