The National Weather Service issued a flood warning for Baltimore County until 8 p.m. Saturday due to rising creeks and rain falling on land already sodden from several days of precipitation.
The weather service warned that roads could flood, particularly those in rural areas, and noted that portions of Upper and Lower Glencoe Roads near the Gunpowder Falls were likely to be affected.
Baltimore County Police and Fire dispatchers said that no roads had been closed and no accidents had been reported as being linked to flooding.
Saturday's steady rain, which follows a week of snow and rain storms, is swelling creeks and pooling on country roads, the Sterling, Va.-based weather service said.
An additional tenth of an inch of rain could fall this evening, the weather service said.
The weather service urged motorists to avoid driving through water that covered roadways and to seek higher ground.