Up to 12 reports of tornadoes and 24 reports of hail storms as affected areas remain under tornado watch.
The worst-hit area was in Garland, northeast of Dallas, where eight people were killed.
A dozen individuals went missing over the weekend after flooding swept away their vacation home.
Images and videos of the storm and destruction it caused have been circulating on social media.
The low-frequency sound of intense storms can alert birds that they need to leave, post-haste.
A tornado tore through the Mississippi town of Tupelo on Monday destroying homes and businesses
Arkansas authorities said at least 10 people had died in the small town of Vilonia