re: Tornado Thread: HIGH RISK in Oklahoma and Kansas

What you look for is called a couplet, when you have bright red and bright green next to each other. You have reds showing velocity moving away from the radar site, and green which are moving towards. The brighter the color the higher the velocity. So even when velocities are low, you can kinda tell where rotation is beginning, you can also tell how strong it is, and if it is broad or tightened. Also paired with base reflectivity and correlation coefficient radar you can see other features like hooks and debris balls to confirm whether there may be a tornado or not.