A morning commute crash apparently caused by a youth suspected of drunken driving sent two cars flying onto their rooftops and stacked up traffic through Santa Rosa for miles, the CHP reported.

The 18-year-old Santa Rosa driver had been weaving through southbound traffic at about 80 mph on Highway 101 when he clipped the back of a car driven by Natasha Furman, 25, of Santa Rosa at about 8:25 a.m., said Officer Jon Sloat.

Furman's mother was driving in the car behind her, just south of Highway 12 as they were caravanning to Petaluma where they planned to stop and carpool to work into Marin County.

"He swerved in between us and then he lost control and hit her and both cars flipped," Patricia Furman said.

"It was horrifying to watch. I was just screaming 'Oh my god. Oh my god. Oh my god,' " she said.

She stopped and ran to her daughter's overturned car, where she was relieved to find her conscious and talking.

Natasha Furman was briefly trapped inside the upside-down vehicle. She was taken to Santa Rosa Memorial Hospital with head and neck pain, Sloat said.

Driver Daniel F. McRae didn't appear to be seriously injured. His 2001 Oldsmobile Intrigue had also overturned, stopping in the center divider.

He was given a medical evaluation and booked into the Sonoma County Jail on suspicion of felony drunken driving for causing injuries. His bail was $30,000.

The crash backed up the morning commute into northern Santa Rosa.

You can reach Staff Writer Randi Rossmannat 521-5412 or randi.rossmann@pressdemocrat.com.