Low pressure and its associated cold front passed through during the early morning hours of April 16th. Heavy rain of 1 to 3 inches fell in portions of the state, causing flooding mainly in Montgomery and Harford Counties. Upstream water from this same event then moved downstream, causing flooding along the Potomac River on the 18th.

Flood in MONTGOMERY, MARYLAND
From 16-APR-18 06:55:00 to 16-APR-18 11:30:00 (EST-5)
Location: BYFORDE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Kensington Parkway flooded and closed, with at least one foot of flowing water across the road, near Rock Creek.

Flood in MONTGOMERY, MARYLAND
From 16-APR-18 06:58:00 to 16-APR-18 10:00:00 (EST-5)
Location: UNITY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Howard Chapel Road flooded and closed due to flooding from both Haights Branch and Hawlings River.

Flood in MONTGOMERY, MARYLAND
From 16-APR-18 07:06:00 to 16-APR-18 10:00:00 (EST-5)
Location: PARKWOOD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Beach Drive flooded and closed between Franklin Street and Knowles Avenue in Kensington due to overflow from Rock Creek.

Flash Flood in MONTGOMERY, MARYLAND
From 16-APR-18 04:29:00 to 16-APR-18 05:39:00 (EST-5)
Location: PARKWOOD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A water rescue occurred on Beach Drive near East Stanhope Road when a car became disabled in a foot of moving water caused by overflow of Rock Creek.

Flood in HARFORD, MARYLAND
From 16-APR-18 06:00:00 to 16-APR-18 08:00:00 (EST-5)
Location: VAN BIBBER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Edgewood Road flooded and closed at the CSX railroad overpass.

Flood in HARFORD, MARYLAND
From 16-APR-18 06:00:00 to 16-APR-18 08:00:00 (EST-5)
Location: ABERDEEN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Old Robinhood Road flooded and closed east of Paradise Road.

Flood in MONTGOMERY, MARYLAND
From 18-APR-18 06:00:00 to 18-APR-18 12:00:00 (EST-5)
Location: WHITES FERRY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The USGS stream gage on the Potomac River at Edwards Ferry went just above the 15 foot flood stage on April 18th. Areas near Whites Ferry were flooded and ferry service was suspended.

Flash Flood in MONTGOMERY, MARYLAND
From 16-APR-18 02:11:00 to 16-APR-18 02:34:00 (EST-5)
Location: TWIN BROOK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The USGS stream gage on Turkey Branch in Rockville rapidly exceeded flood stage, peaking at 10.37 feet around 315 AM EDT. Trails and parkland were flooded with water approaching Turkey Branch Parkway in the area.

Flash Flood in MONTGOMERY, MARYLAND
From 16-APR-18 02:37:00 to 16-APR-18 05:39:00 (EST-5)
Location: BROOKEVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Maryland State Route 97 was flooded and closed between Brookeville Road and Bordly Drive, in the vicinity of Reddy Branch, due to rapidly rising water.

Flash Flood in MONTGOMERY, MARYLAND
From 16-APR-18 04:39:00 to 16-APR-18 05:39:00 (EST-5)
Location: BRIGHTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

One to 2 feet of moving water was flowing over Brighton Dam Road at the Hawlings River crossing. A car drove into these floodwaters, prompting a swift water rescue.