FOX 7 Austin meteorologist Zack Shields says a slow-moving front is on a collision course with the warmth and high humidity and something has to give.
Storms will fill in along the front starting in the Hill Country by early afternoon. Then the line will push south toward the Austin metro between 3 and 6 p.m. It will exit the eastern counties by mid-evening.
The main threats will be damaging winds up to 60 mph, quarter-sized hail, and lightning. Copperas Cove and Fort Hood have already seen quarter-sized hail.
A tornado can't be ruled out, but it's unlikely, as there is limited wind shear in the atmosphere, says Zack Shields.
Rain totals will range from half an inch to one inch. The ground is so dry it will soak that up quickly, so there's not expected to be any run-off.
Tonight we will be behind the front, and it won't be as humid or warm. Lows in the morning will drop in the 60s. Don't get used to the cooler temperatures because a sizzling weekend is ahead.
Track your local forecast for the Austin area quickly with the free FOX 7 WAPP. The design gives you radar, hourly, and 7-day weather information just by scrolling. Our weather alerts will warn you early and help you stay safe during storms.