Millions of motorists from Texas to Illinois were warned Friday that storms were likely to bring high winds and golf ball-sized hail.
Although the chances of a tornado outbreak appeared low, meteorologists highlighted a severe storm threat through a large swath of the nation.
"If you can leave your car in the garage that would be preferable," Michael Palmer, senior meteorologist at The Weather Channel said. "We are going to see isolated storms with high winds and golf ball-sized hail from Texas, up through Arkansas and the Mississippi Valley and into Illinois and Indiana.
The Weather Channel
Weather Channel map of severe thunderstorm threat from Texas to Illinois on Friday.
"Heavy downpours could cause water build-up on the roads and at the least people need to slow down on their journeys throughout most of the day."
Palmer said there would be some activity in the early morning, but that the worst of the storms would hit in the late morning and early afternoon.
The severe storm threat has actually diminished since Thursday when 60-70 mph winds and heavy rainfall caused flooding and damage to buildings in Dallas, according to Palmer.
Five boys had to be rescued after becoming trapped by rising waters, several warehouses lost their roofs, and part of the Dallas Area Rapid Transit rail service was suspended.
Palmer added that the threat would increase in the Plains over the weekend, with a slight increase in the threat of tornadoes for parts of the Plains, particularly Texas and Oklahoma, on Sunday.
The Associated Press contributed to this report.
First published May 9 2014, 1:44 AM