During their time on the road, they encountered a wall cloud lowering on a tornado warned supercell east of Guthrie, Texas.
"We're far enough to the east. We're in a safe spot. But holy cow," Collin said.
"That is a lowering, where there is rotation. There could be a tornado coming out of that system right there," David said.
Watch the video above to see more of their experience storm chasing in north Texas.
SEE ALSO: At least 19 tornadoes touched down from Texas to Oklahoma, causing widespread damage