For your location. In much greater detail than charts on TV or in the newspaper. No more guessing what your weather might be, from a vague forecast or one made for a remote city or for a state-wide area. No more having to deal with forecasts that do not include the actual weather information you need for your business or activity. All forecasts are wrong in some degree, but some are more useful than others.
All forecasts have errors.
It's a good thing to have an idea of how uncertain a forecast is. However, the days are past when such general statements were all that can be said about coming weather. Modern weather data and computer weather models permit detailed forecasts for any location . Coast Weather chooses to go out on a limb and give you precise, detailed forecasts for anywhere in the coastal US, including offshore 200 miles and more. Sure, that may not be exactly right.