What is the difference between National Weather Service NEXRAD Doppler radar and Live Doppler 9?
NEXRAD Doppler radar is the name of the radar system maintained by the National Weather Service. The National Weather Service operates a network of NEXRAD Doppler radars all across the United States. These are some of the most powerful radars to monitor weather conditions. However, it takes at least six minutes for NEXRAD Doppler radar to make a complete scan of the sky. These radars scan many different levels of the sky looking for different weather features. Because NEXRAD radars scan different levels, it takes longer to receive an updated radar image. Once that data is available, it has to be sent to computers in the KTRE Weather Center and then compiled before you can see it on TV. By the time you see a National Weather Service radar image, it is anywhere from six to 15 minutes old.
Live Doppler 9 is owned and operated exclusively by KTRE. Our radar only scans one level of the atmosphere closest to the earth's surface. Live Doppler 9 can make a complete scan of the sky in just 16 seconds. That gives us a live, real-time view of storms in our area. We no longer have to wait six to 15 minutes to see an old radar image. With Live Doppler 9, we can track storms in real time down to street level. That means we can pinpoint exactly where a storm is located and where it is headed.
KTRE Meteorologists use Live Doppler 9 in addition to radar data from the National Weather service to keep our viewers informed with the latest weather information.