There’s a flood warning in effect for parts of Montgomery County until 11:30am Tuesday morning. Flooding caused by excessive rainfall is expected in portions of central Maryland and north central Maryland, including the following counties: in central Maryland, Howard and Montgomery.
Flooding of creeks, streams, and other low-lying and
flood-prone locations is imminent or occurring. Expect areas of slow moving or standing water in poor drainage areas. At 5:32 am Tuesday morning, Doppler radar indicated heavy rain that is resulting 1 to 1.5 inches per hour. Flooding is ongoing or expected to begin shortly in the warned area.
Between 1.5 and 3 inches of rain have fallen. Additional rainfall amounts of 0.5 to 1.5 inches are possible in the warned area. Some locations that will experience flooding include, Germantown, Frederick, Rockville, Gaithersburg, Leesburg, Olney, Westminster, Damascus, Lowes Island, Poolesville, Aspen Hill, Potomac, North Bethesda, Montgomery Village, North Potomac, Ballenger Creek, Redland, Great Falls, Mount Airy, and Walkersville.