Increasing, scattered storms moved into the metro Atlanta area late Sunday afternoon, a day after strong storms developed across the region, injuring several people when a tarpaulin collapsed at a Carroll County park.

The storms are expected to continue into Sunday evening and diminish overnight, Channel 2 meteorologist Brad Nitz said.

“Yesterday’s storms were stationary, which allowed the heavy rain to accumulate in one spot once a storm developed,” he told The Atlanta Journal-Constitution. “Today the storms are moving east, which spreads out the rainfall and reduces the flood risk. However, since the ground is saturated, it is possible that there could be some isolated flooding with some of the stronger storms today.”

Check today’s full weather report and track changes.

Heavy rain accumulated Saturday on the tarp covering a concert stage at the Villa Rica V-plex, a civic center and sports complex on Carrollton Villa Rica Highway, according to the National Weather Service.

Channel 2 reported that four people sustained non-life threatening injuries in the incident, which happened just before 4 p.m. during a breast cancer fundraiser sponsored by the Curves and Chrome Bike Club.

The Chad Miller Band was performing on the stage when the tarp collapsed, Channel 2 said. Band member Jon Wyatt sustained injuries to his knees and back, while fellow band member Andrew Williamson suffered a gash in his head, the report said.

In Cobb County, about 25 people were forced to evacuate Saturday night after a sink hole developed at the Ivy Ridge apartment complex on Bentley Road in Marietta, Channel 2 said. Restoration crews were on the scene Sunday morning. Workers believe the rain caused a wall to collapse in the building.

In Hall County, about 100 families were stranded after heavy rain around 3 p.m. Saturday washed out C Rogers Road, Hall sheriff’s spokesman Stephen Wilbanks said.

“Hall County public safety agencies, including the Sheriff’s Office, went to work immediately assisting those who were cut-off due to the road closure,” Wilbanks said. “The Sheriff’s Office dive boat is being utilized to ferry residents from Clark’s Bridge Park to a private boat dock at the end of C Rogers Road.”

The road was reopened after 1 a.m., Wilbanks said.

A flash flood warning was posted just before 5 p.m. Saturday for parts of Fulton, Cobb, Douglas and Clayton counties, where the National Weather Service reported that 2 to 3 inches of rain had fallen in about 90 minutes, with another inch or more to come. The warning was in effect until 10:30 p.m.

Earlier in the afternoon, storms drenched those attending the Trayvon Martin rally in downtown Atlanta.

A rally scheduled for Saturday evening on the square in Marietta was canceled due to the weather, according to Marietta police spokesman David Baldwin.

And the rain isn’t done with metro Atlanta.

There is a 60 percent chance of showers Monday and Tuesday, dropping to a 30 percent chance Wednesday and Thursday, Nitz said. Highs will be in the mid to upper 80s, with lows in the low 70s.