CHARLOTTE, N.C. -- After a hot and humid Father's Day, a line of storms are pushing to the Piedmont to start the week.

Meteorologist Sarah Fortner says heavy rain is expected overnight in the Charlotte area. She said the accumulation of the rain could add up to two inches per hour.

Fortner says rainfall will be the biggest concern in the coming days.

"You've got to watch out for flash flooding and ponding on the roads," Fortner said. "Water on top of water -- in a short period of time -- is never pretty."

Fortner said the Charlotte area may be at a medium-risk for severe weather Monday evening, particularly in areas northwest of Charlotte.

Fortner said in addition to heavy rain, with one to three inches of possible accumulation, she said hail and damaging winds are other major concerns that we may need to watch out for.

She expects the scattered strong storms to arrive in the area after 5 p.m. Monday and through 11 p.m.