Keep in the mind thats the national feed. The Weather Channel has a L-strap that features specific data for your location feed in by the head-end. So for example you will only see the Miami area forecast if you live in Miami. If you live in Los Angeles you will only see LA current temps etc. Also this system will feed alert data to your screen in the event of Tornadoes etc.
By the way this is why these cutting edge live broadcasting tech is so valuable. Especially for weather.
I said what I said!