The National Weather Service in Charleston has extended a flash flood warning to parts of the Lowcountry until 6 p.m. as showers and thunderstorms are expected to bring heavy rainfall for the next hour.

The Weather Service had initially issued a flash flood warning that was set to expire at 5 p.m. but after heavy rain systems have continued to remain in the area, the warning was extended another hour for parts of Charleston, Berkeley and Dorchester counties. Standing water has been reported across the Lowcountry Sunday including neighborhoods in Ladson and North Charleston as well as Mount Pleasant.

Charleston officials urged residents to use extreme caution in light of the warning and high tide tonight at 8:37 p.m. Some roads may be impassable, said Charles Francis, Charleston police spokesman. The Charleston Emergency Management Department is also urging motorists to be vigilant Monday morning in low lying areas during high tide at 8:52 a.m.

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