What is Live Doppler 48? November 23, 2005 at 4:24 PM CST - Updated July 27 at 1:20 AM WAFF Live Doppler 48 is our live Doppler radar. It is a 250,000 watt radar that can detect twisting winds and heavy rainfall across the entire viewing area. The image is updated every 3 minutes. Click here to view the latest WAFF Live Doppler 48 image.