Here is an example of table 5 (it used to be table 6)
Step One – Note the Venue
Fill in the date, locality and time for which we require the information.
DATE _______October 1, 2003_________________
Step Two – Note the Duration and Interval
From the previous data, we see that we have a duration of 0327 to 1141 or 8 hour and 14 minutes. The nearest time to 0700 is 0327 or 3 hours and 33 minutes.
DURATION of rise and fall ______8 h 14 m______________
INTERVAL of time from tabulated level ____3 h 33m_______
Step Three – Calculate the Range of the Tide
The height of the tide at 0327 is 2.2 feet and at 1141 is 11.4 feet. Therefore, the range is 9.2 feet.
RANGE of rise and fall ______9.2 feet__________
Step Four – Determine the correction
Using Table 6, locate the nearest duration to 8h 14m, which is 8h 10m, and follow the row across the table until reaching the nearest time interval to 3h 33m, which is 3h 34m. Note that is in column 8. Using Table 6A follow column 8 down until it intersects with the closest range to 9.2 feet, 9 feet. This number, 3.6 feet, is the correction. Since we are using the nearest height, which is a lower water, we will add 3.6 feet to 2.2 feet. The answer, 5.8 feet, is the prediction of the height of the tide at 0700.
CORRECTION to be tabulated ___3.6 feet______________
HEIGHT OF TIDE ______5.8 feet_____________________