While the rain has lightened up considerably in many locations, additional showers are expected through the evening and continued runoff from previous rains are expected to cause further flooding.
A flash flood warning remains in effect for Charleston, Berkeley, Dorchester, and Colleton Counties until 9:45 p.m. At 6 p.m., doppler radar indicated a band of moderate to heavy rain redeveloping across southern portions of the Tri-County.
A flash flood watch also remains in effect through Monday morning and affects a portion of southeast South Carolina including Charleston, coastal Colleton, Dorchester, inland Berkeley, inland Colleton and tidal Berkeley through Monday morning.
An additional one to three inches of rain is possible where heavier rain occurs through this evening with locally higher amounts possible.
This much rainfall will only worsen the flash flooding which is already occurring.
Some locations that will experience additional flooding include Charleston, North Charleston, Summerville, James Island, Walterboro, Edisto Beach, St. George, Middleton Place and Ladson.
Meteorologist Bill Walsh says the upper level low pressure area responsible for the epic flooding and heavy rainfall is over north Florida and will lift slowly to the northeast over the next 24 to 48 hours.
"The surface low near the coast will also slowly lift northeast out of the area," Walsh said. "As the low slowly pulls northeast, the heavy rain bands will pivot slightly back south keeping much of the area with a possible two to four additional inches of rain through Monday.
Once the low lifts out, sunny and dry weather is expected for Tuesday through Thursday.