A surface trough between an approaching cold front from the west and a tropical disturbance offshore resulted in a band of heavy showers and thunderstorms along the I-95 corridor on the afternoon/evening of 9/10, resulting in multiple instances flooding and flash flooding.

Flash Flood in MONTGOMERY, MARYLAND
From 10-SEP-20 12:03:00 to 10-SEP-20 15:00:00 (EST-5)
Location: TWIN BROOK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

About a foot of water was flowing over the roadway near the Intersection of Oriental Street and Bartlett Street.

Flash Flood in MONTGOMERY, MARYLAND
From 10-SEP-20 12:05:00 to 10-SEP-20 15:00:00 (EST-5)
Location: GLEN ECHO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

One to two feet of water was flowing across MD-614  Goldsboro Road at MD-396 Massachusetts Avenue.

Flash Flood in MONTGOMERY, MARYLAND
From 10-SEP-20 12:07:00 to 10-SEP-20 15:00:00 (EST-5)
Location: FRIENDSHIP HGTS
Flood cause: Heavy Rain
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Two vehicles were trapped in high water near the Intersection of Arlington Road and MD-191 Bradley Boulevard.

Flash Flood in MONTGOMERY, MARYLAND
From 10-SEP-20 12:15:00 to 10-SEP-20 15:00:00 (EST-5)
Location: SOMERSET
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

One foot of water was flowing across Massachusetts Avenue near Little Falls Parkway.

Flash Flood in MONTGOMERY, MARYLAND
From 10-SEP-20 12:26:00 to 10-SEP-20 15:00:00 (EST-5)
Location: WOODHAVEN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Service Road West was closed due to flooding between Lincoln Drive and South Drive due to high water.

Flash Flood in MONTGOMERY, MARYLAND
From 10-SEP-20 12:34:00 to 10-SEP-20 15:00:00 (EST-5)
Location: WOODHAVEN
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A vehicle was trapped in high water near the intersection of Greentree Road and MD-187 Old Georgetown Road.

Flash Flood in MONTGOMERY, MARYLAND
From 10-SEP-20 12:34:00 to 10-SEP-20 15:00:00 (EST-5)
Location: PARKSIDE
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A vehicle was trapped in high water near the intersection of Colfax Street and Parkwood Drive.

Flash Flood in MONTGOMERY, MARYLAND
From 10-SEP-20 12:35:00 to 10-SEP-20 15:00:00 (EST-5)
Location: BETHESDA
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A vehicle was trapped in high water along Dorset Avenue near the Little Falls Parkway.

Flash Flood in MONTGOMERY, MARYLAND
From 10-SEP-20 12:37:00 to 10-SEP-20 15:00:00 (EST-5)
Location: PARKSIDE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A vehicle was stranded in high water near the intersection of Beach Drive and Wexford Drive.

Flash Flood in MONTGOMERY, MARYLAND
From 10-SEP-20 12:40:00 to 10-SEP-20 15:00:00 (EST-5)
Location: PARKWOOD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Beach Drive at Connecticut Avenue was flooded with about three to four feet of water moving over the road.

Flash Flood in MONTGOMERY, MARYLAND
From 10-SEP-20 12:41:00 to 10-SEP-20 15:00:00 (EST-5)
Location: BYFORDE
Flood cause: Heavy Rain
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Three vehicles were stranded in high water near the Intersection of Kensington Parkway and Beach Drive.

Flash Flood in MONTGOMERY, MARYLAND
From 10-SEP-20 12:57:00 to 10-SEP-20 15:00:00 (EST-5)
Location: TWIN BROOK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Two to three feet of moving water was flowing in and around the intersection of Oriental and Bartlett Streets.

Flash Flood in MONTGOMERY, MARYLAND
From 10-SEP-20 13:05:00 to 10-SEP-20 15:00:00 (EST-5)
Location: TAKOMA PARK
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A vehicle was trapped in high water near the 6000 Block of Alleghany Avenue.

Flash Flood in MONTGOMERY, MARYLAND
From 10-SEP-20 13:05:00 to 10-SEP-20 15:00:00 (EST-5)
Location: TAKOMA PARK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Two to three feet of water was rapidly flowing down Jackson Avenue. Debris was being pushed down the road as well.

Flash Flood in MONTGOMERY, MARYLAND
From 10-SEP-20 13:08:00 to 10-SEP-20 15:14:00 (EST-5)
Location: TAKOMA PARK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The water level rapidly rose above flood stage at Sligo Creek, cresting at 6.87 feet at 1:50 PM EST. The Sligo Creek Parkway was flooded just north of Maple Avenue. The water level remained above flood stage until 3:23 PM EST.

Flash Flood in PRINCE GEORGE'S, MARYLAND
From 10-SEP-20 13:12:00 to 10-SEP-20 15:00:00 (EST-5)
Location: LANGLEY PARK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Riggs road was closed due to flooding at Chapman Road.

Flash Flood in MONTGOMERY, MARYLAND
From 10-SEP-20 13:20:00 to 10-SEP-20 15:00:00 (EST-5)
Location: NORTHWEST PARK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

MD-193 University Boulevard was closed due to flooding at Seek Lane.

Flash Flood in MONTGOMERY, MARYLAND
From 10-SEP-20 13:38:00 to 10-SEP-20 15:00:00 (EST-5)
Location: TAKOMA PARK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A vehicle was stranded in high water along Sligo Creek Parkway near MD-650 New Hampshire Avenue.

Flash Flood in PRINCE GEORGE'S, MARYLAND
From 10-SEP-20 13:30:00 to 10-SEP-20 15:14:00 (EST-5)
Location: ALEXANDRIA JCT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The water level along the Northeast Branch of the Anacostia River in Riverdale rapidly rose above flood stage and it crested at 10.9 feet at 2:15 PM EST. The northeast branch trail was flooded in spots. The water level remained above flood stage until 3:30 PM EST.

Flash Flood in MONTGOMERY, MARYLAND
From 10-SEP-20 13:57:00 to 10-SEP-20 15:00:00 (EST-5)
Location: NORTHWEST PARK
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A vehicle was stranded in high water near the intersection of Oakview Drive and Dilston Road.

Flash Flood in MONTGOMERY, MARYLAND
From 10-SEP-20 14:02:00 to 10-SEP-20 15:00:00 (EST-5)
Location: GEORGETOWN JCT
Flood cause: Heavy Rain
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Broadcast Media

There were multiple water rescues along Sligo Creek Parkway near Wayne Avenue.

Flash Flood in PRINCE GEORGE'S, MARYLAND
From 10-SEP-20 14:11:00 to 10-SEP-20 15:00:00 (EST-5)
Location: LANDOVER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Route 202 was closed due to flooding at the Baltimore-Washington Parkway.

Flash Flood in PRINCE GEORGE'S, MARYLAND
From 10-SEP-20 14:11:00 to 10-SEP-20 15:00:00 (EST-5)
Location: NEW CARROLLTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Brier Ditch was out of its banks, forcing a road closure due to flooding at Lamont Drive and Carrollton Parkway.

Flash Flood in PRINCE GEORGE'S, MARYLAND
From 10-SEP-20 14:17:00 to 10-SEP-20 15:00:00 (EST-5)
Location: COLLEGE PARK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

There was up to a foot of flowing water across all of Terrapin Row at Hartwick Road. Much of the block was underwater.

Flash Flood in PRINCE GEORGE'S, MARYLAND
From 10-SEP-20 18:45:00 to 10-SEP-20 20:00:00 (EST-5)
Location: BLADENSBURG
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

There were multiple vehicles trapped in high water on Columbia Park Road near US 50.

Flash Flood in PRINCE GEORGE'S, MARYLAND
From 10-SEP-20 13:38:00 to 10-SEP-20 15:00:00 (EST-5)
Location: RIVERDALE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

There were multiple water rescues in the Hyattsville, Mount Rainer, and Brentwood areas.

Flood in PRINCE GEORGE'S, MARYLAND
From 10-SEP-20 15:22:00 to 10-SEP-20 17:22:00 (EST-5)
Location: COTTAGE CITY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

U.S. Highway 1 closed at 34th St. due to flooding.

Flood in PRINCE GEORGE'S, MARYLAND
From 10-SEP-20 15:37:00 to 10-SEP-20 17:37:00 (EST-5)
Location: KENT VLG
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

U.S. Hwy. 50 closed due to flooding between MD-202 and MD-201.

Flood in MONTGOMERY, MARYLAND
From 10-SEP-20 15:54:00 to 10-SEP-20 17:54:00 (EST-5)
Location: WHITE OAK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

U.S. 29 closed south of Lockwood Dr. due to flooding.

Flood in ST. MARY'S, MARYLAND
From 10-SEP-20 16:06:00 to 10-SEP-20 18:06:00 (EST-5)
Location: CHAPTICO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

MD-238 closed due to flooding between MD-234 and Manor Rd.

Flood in ST. MARY'S, MARYLAND
From 10-SEP-20 16:12:00 to 10-SEP-20 18:12:00 (EST-5)
Location: LEONARDTOWN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

MD-243 closed due to flooding at the intersection with MD-5.

Flood in PRINCE GEORGE'S, MARYLAND
From 11-SEP-20 03:51:00 to 11-SEP-20 08:08:00 (EST-5)
Location: UPPER MARLBORO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The water level at Upper Marlboro rose above flood stage, and it crested at 11.31 feet at 5:15 AM EST. The Water Street Bridge was covered by water.

Flood in ST. MARY'S, MARYLAND
From 10-SEP-20 07:28:00 to 10-SEP-20 13:03:00 (EST-5)
Location: GREAT MILLS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The water level rose above flood stage and it crested at 6.29 feet at 8:45 AM EST. Flat Iron Road was flooded with and water was in some yards in Great Mills.

Flood in PRINCE GEORGE'S, MARYLAND
From 10-SEP-20 15:45:00 to 10-SEP-20 18:36:00 (EST-5)
Location: RITCHIE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The stream gauge along the Southwest Branch at Truman Drive rose approximately 12 feet in about two hours, extending above moderate flood stage and cresting at 13.18 feet at 4:55 PM EST feet.

Flash Flood in MONTGOMERY, MARYLAND
From 10-SEP-20 13:39:00 to 10-SEP-20 15:14:00 (EST-5)
Location: WHEATON HILLS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The water level along the Northwest Branch Anacostia River at Colesville rapidly rose above the flood stage. The water level rose 8 feet within an hour and it crested at 10.39 feet at 2:05 PM EST. The river remained above flood stage until 4:01 PM EST. The Northeast Branch Trail was flooded.

Flash Flood in ST. MARY'S, MARYLAND
From 10-SEP-20 05:28:00 to 10-SEP-20 07:15:00 (EST-5)
Location: CHAPTICO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Budds Creek Road was close due to high water near Chaptico.

Flash Flood in ST. MARY'S, MARYLAND
From 10-SEP-20 06:06:00 to 10-SEP-20 07:15:00 (EST-5)
Location: DYNARD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Bayside Road was closed due to flooding.

Flash Flood in ST. MARY'S, MARYLAND
From 10-SEP-20 06:13:00 to 10-SEP-20 07:15:00 (EST-5)
Location: CHAPTICO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Baptist Church Road was closed due to flooding.

Flash Flood in ST. MARY'S, MARYLAND
From 10-SEP-20 06:15:00 to 10-SEP-20 07:15:00 (EST-5)
Location: CHAPTICO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Maddox Road was closed due to flooding near Chaptico.

Flash Flood in ST. MARY'S, MARYLAND
From 10-SEP-20 06:27:00 to 10-SEP-20 07:15:00 (EST-5)
Location: COMPTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Newtown Neck Road was closed due to flooding.

Flash Flood in MONTGOMERY, MARYLAND
From 10-SEP-20 11:39:00 to 10-SEP-20 13:08:00 (EST-5)
Location: TWIN BROOK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The water level along the stream gauge at Turkey Branch in Rockville rapidly rose above 7 feet in just over an hour, peaking at 11.46 feet at 12:35 PM EST. Water approached the intersection of Turkey Branch Parkway and Danvers Street as well as the intersection of Turkey Branch Parkway and Grenoble.