Heights of the tides on the vertical axis are shown in feet abovemean low water.

Directly below each days' graph are two lines of numbers. The upperline indicates the height of the tide (in feet) for that particular highor low water. On the lower line are the times (Pacific Standard Time) atwhich the particular high or low water occurs. You should bear in mindthat the numbers are only approximations; the strong resonant effects ofthe waters of the Sea of Cortez, coupled with the significant influenceof the winds, may cause any one of these highs or lows to be off by30-45 minutes.