The National Weather Service has issued a coastal flood advisory until 11 tonight for low-lying areas of Charleston County, including downtown Charleston.

Tide levels are expected to peak between 6.9 and 7.1 feet. A few streets will flood but remain passable, the Weather Service said.

Tonight: Clear but becoming cloudy; lows will be in the upper 50s. East winds will be from 10 to 15 mph with gusts up to 25 mph.

Saturday: Partly sunny skies are expected with a 40 percent chance of rain. Highs will be in the mid-70s and lows in the upper 50s. East winds will be from 10 to 15 mph.

Sunday: Cloudy skies are expected with a 50 percent chance of showers. Highs will be about 70 with lows about 60. East winds will be from 10 to 15 mph.