CHAPTER 4 PAGE 15.


Water Movement Water movement is affected by many things, including the earth’s gravitational pull and wind force. In bodies of water open to the ocean, the rise and fall of water on a predictable schedule is called tide. Te horizontal flow of water is called current. Sometimes current moves faster than a boat can sail!


Te vertical movement of tides can be seen as the water rises or falls on a piling of beach. A falling tide will leave a wet beach or piling next to the waters edge. A dry beach or piling next to the water signifies a rising tide or high tide.


Current can have a strong impact on sailing. Plan a trip accordingly to avoid surprise.


Since wind and weather are constantly changing, it is a good idea to keep a


“weather eye” looking for signs of change.


Tide Current


Bad weather Good sailors are alert to changes in the weather that could signal the onset of inclement conditions for sailing. Recognizing the early warnings for high winds or storms can give you time to reduce sail or seek shelter. Watch the distant sky for signs of change and listen to a weather radio for local forecasts. As the saying goes, “When in doubt, don’t go out!”


Te range of tide–the depth difference between high and low water– is important because you might run aground in a place where you had enough water just a few hours before. Boats pulled up on a beach at low tide could float away at high tide.


You can find information on tides for the dates when you plan to be on the water from websites, newspapers, news broadcasts, weather radios and tide tables available at bookstores and marine stores.


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