North Texas August 8, 2017 5:40 pm Weather Quiz: Lightning Development in a Thunderstorm NBC 5 Meteorologist Rick Mitchell asks: What is essential for lightning development in a thunderstorm? Wake Up to Something Good 3:28 Mother mourns loss of son killed in North Texas flooding 1:57 ‘The Wall That Heals' comes to Frisco 1:51 Child killed in Johnson County flooding 0:38 Pet of the Week: Matrix! 2:23 Parents of Fort Worth drive-by shooting victims recalls horrifying moments