Harford County emergency officials are warning residents to watch out for potential flooding and dangerous driving conditions because of the heavy rains falling Friday from the remnants of Tropical Storm Andrea.

A robocall was sent to court residents shortly after 11 a.m. Friday telling them to be wary of standing water in roadways and not to drive through it, but to turn around and go back instead.

The county has been placed under a flash flood watch by the National Weather Service until 10 p.m. Friday, county Emergency Operations Manager Rick Ayers said in the call.

Ayers said the county had received about 1.5 inches of rain by late Friday morning and was expecting between 2 and 4 more inches before the storm is forecast to leave the area either late Friday night or early Saturday morning.

"The main impact to our County will most likely be inland flooding in low lying areas and streams coming out of their banks," he said. "As a reminder to our citizens, please don't drive through high water and turn around."

Bob Thomas, spokesman for county government, said the county's Emergency Operations Center was going to be activated at noon and would remain on that status until 10 or 11 p.m. or longer if necessary.

"There have been no serious issues to date," Thomas said.