WHAT IS DOPPLER RADAR
Radar is an electronic signal that is sent out from a device that looks like a satellite dish. This machine sends out an electronic signal that "bounces" off raindrops, hailstones or anything falling from clouds. The signal is sent back to the satellite dish and interpreted. A good example would be standing by a cliff and yelling "Hello" really loud. Chances are you will hear your echo return in a few seconds. That's what a radar signal does. If it hears an echo, Doppler Radar will tell a computer system how loud the echo was and where it heard the echo. This will show up on KTXS live Doppler 12 Radar screen as a light, moderate or heavy rainfall.
A Doppler Radar like KTXS Live Doppler12 is able to look inside a thunderstorm and not only tell us how hard it's raining, but how hard the winds are blowing as well. This allows us to see if the winds are spinning or swirling, which might mean a tornado is beginning to form.
Why is it called Live Doppler12?
The answer is that when you see a radar picture on Live Doppler 12, it’s just that: live! Less than one second old. The United States owns and operates a gigantic network Doppler Radars that are also used by KTXS meteorologists. There's only one problem with these Doppler Radars. The information that you see on air is four to 10 minutes old, depending on which mode you look at. These images are composited with radars across the country and composited for a countrywide look to weather conditions. During severe storms that's too long when these storm cells could be approaching your home!
Live Doppler 12 constantly provides KTXS with an actual live radar picture without delay. This means when severe weather is threatening, KTXS will relay this vital information to you as much as 10 minutes faster than ever before. That can be up to 10 minutes faster than any other television station in the Big Country, and those 10 minutes could very well save your life.