Heavy rain Saturday added to the misery of people trying to clear away the wreckage left by tornadoes that bounced across the state last week.

A flash flood watch was posted for 80 of Tennessee's 95 counties, and no letup in the rain was likely before Monday, said Jim Cannon, spokesman for the Tennessee Emergency Management Agency."You can't clean up in a torrential downpour, so this is definitely going to slow down recovery," Cannon said.

Thursday's tornadoes killed six people in Tennessee and damaged or destroyed more than 1,600 homes and businesses. The second round of tornadoes to hit the South in eight days also killed three people in Kentucky and two in Arkansas.

"The damage is profound," said John White, director of the state emergency agency, as he briefed U.S. Sens. Fred Thompson and Bill Frist.

White said about 90 percent of property owners have insurance for tornadoes, but only about 10 percent are covered for flood damage.

In downtown Nashville, cranes hoisted workers to pull down shards of glass from shattered windows in tall office buildings. Inspectors put red tags on about 35 buildings, meaning structural repairs are needed before business can resume.

"Nashville is a big tourist city, and a lot of major hotels downtown are losing monstrous amounts of revenue," Cannon said.

Authorities confirmed Saturday that nine twisters touched down Thursday in western and central Tennessee before the storm system went on to dump heavy rain on eastern parts of the state.

In addition to the tornado deaths, one woman drowned Friday when a swollen creek swept her car off a road in eastern Tennessee.

Some bridges in the region were washed out. In Johnson City, water rose up to 30 inches in the business district after debris blocked storm drains.

Volunteers spread out to help people recover from the storm.

"I'm ready to get wet," 17-year-old Emily Potts said Saturday as she joined hundreds of volunteers cleaning up the Edgefield community, a historic district just east of downtown.

Among tornado casualties were trees nurtured for more than a century around the Hermitage, the historic home of Andrew Jackson, the nation's seventh president.

Hundreds of trees are gone, including cedars planted by Jackson himself in 1837 around the guitar-shaped driveway leading to his mansion.

The house itself, a Greek Revival-style mansion that underwent a $2.5 million renovation completed last year, suffered only a few broken window panes. About 100 children touring the site when the storm hit took shelter in a visitors center theater and a storm cellar.