The tornado that tracked through areas south of Duncanville, AL a few minutes ago was likely EF3 intensity based on a peak TDS height around 16k feet and a peak rotational couplet of 73 kt. Not a good sign for things to come 😬 #alwx pic.twitter.com/qe4GQPeyWy

— Sam Emmerson (@ou_sams) March 25, 2021