Are there any other radar images available besides the current four?
How does the radar work?
Is every thing I see on the images an accurate picture of my weather?
What are the different types of radar images?
How often are the images updated?
What is Clear Air Mode?
What is Precipitation Mode?
What do the colors mean in the reflectivity products?
What is the difference between base and composite reflectivity?
What is UTC Time?
http://weather.noaa.gov/radar/radinfo/radinfo.html