Below is a post that I've posted elsewhere that describes how to track the storms using Dynamic Data Layers and Google Earth:
Google Earth is the best thing for tracking a storm and it is FREE: First, download and install Google Earth. Then, click on this link to install the National High Resolution (1km) Radar Refectivity Mosaic from NSSl/U of Oklahoma. This is updated every 2 minutes and is overlayed onto the United States portion of Google Earth. It is truly awesome. You can zoom in and see exactly what is in the eye of the storm down to the building. (No, the satellite and aerial photos are not updated in real time). Try it!
For updated Tropical Data and NHC Storm Forecast Models click here and install this Dynamic Data Layer into Google Earth. It includes forecast plots as well as the latest satellite imagery and diagrams and such from various sources. These are all automatically overlayed on Google Earth and each layer can be switch on and off or combined with other layers.
Your posts are treasures!