Tide charts are a useful tool for a variety of purposes. Many people use them for coastal construction projects, fishing, or even disaster cleanups. They can also help you determine the position of the Moon. However, tide charts are not available for all locations. In order to find a tide chart for a specific date, you may have to visit NOAA’s Tides and Currents website. This website allows you to see tide information for up to two years.
Tides are caused by the rotation of the Earth and the gravitational pull of the Moon and Sun. When it comes to the open ocean, the tides have little influence, but for the coastal landscape, they are a major factor. For this reason, it is important to know the time of the high and low tides. You can find tide forecasts for most areas in the United States at the NOAA Tides and Currents website. The site contains tide predictions for more than 3,000 locations nationwide.
A tide chart is a graphic representation of the water level in a bay or inlet. It provides detailed information on the height and local times of high and low tides. These charts are sometimes referred to as tide tables. Most are prepared for a specific location, but they are often shared as a tabular format.
Tide tables are based on Mean Lower Low Water (MLLW). MLLW is an average of lower low water heights over a 19-year period. If the low tide is below the average, it is indicated as a negative number. Similarly, if the low tide is above the average, it is indicated as a positive number. There is a plus (+) sign before the positive number, which indicates that the height is above the Chart Datum, which is the height of the lowest low tide in a given area.
Tide charts are important for Golden Isles residents. For example, in Cape Alava, Washington, the first high tide is at 12:19 a.m. and the second is at 12:42 p.m. Both are seven feet above the mean. Those two tides are followed by a low tide at 12:04 p.m. The waves on the beach usually equal, but they can be affected by the seabed and orientation of the coastline.
Tide tables are also used by fishermen. They can help you improve your catch by knowing when the fish are most likely to be caught. During times of low water, certain types of fish congregate and swim in one area.
The National Oceanic and Atmospheric Administration (NOAA) publishes annual tide prediction tables. These tides are generated by the NOAA Center for Operational Oceanographic Products and Services (COOPS) for more than 3,000 locations in the U.S. and abroad. Although these predictions are based on the most recent data available, they may change before the official tables are published. Therefore, tide predictions made before the tables are officially published may differ from the actual tables.