High pressure resided across the east coast while a warm front was located across the Carolinas. Moist air continued to move into the Mid Atlantic as showers intensified ahead of the warm front. Heavy rain produced flooding in parts of the Washington DC and Baltimore Metro Areas.

Flash Flood in ANNE ARUNDEL, MARYLAND
From 12-AUG-14 12:45:00 to 12-AUG-14 17:45:00 (EST-5)
Location: RAYNOR HGTS
Flood cause: Heavy Rain
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Broadcast Media

There was water more than halfway up the wheels of cars in the parking lots near Linthicum Heights.

Flash Flood in ANNE ARUNDEL, MARYLAND
From 12-AUG-14 12:57:00 to 12-AUG-14 17:45:00 (EST-5)
Location: (BWI)BALTMOR-WSHNGTN
Flood cause: Heavy Rain
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Public

Flooding was reported at the maintenance shop at BWI.

Flash Flood in PRINCE GEORGE'S, MARYLAND
From 12-AUG-14 14:51:00 to 12-AUG-14 21:30:00 (EST-5)
Location: SURRATS GARDENS
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

There were water rescues from homes. There was three feet of water reported in a business near Piscataway Creek on Brandywine Road.

Flash Flood in ANNE ARUNDEL, MARYLAND
From 12-AUG-14 12:58:00 to 12-AUG-14 17:45:00 (EST-5)
Location: (BWI)BALTMOR-WSHNGTN
Flood cause: Heavy Rain
Property damage: 500.00K
Crop damage: 0.00K
Reported by: Broadcast Media

There was water flowing over roadways and there was damage to up to 100 vehicles in Long Term Parking Lots A and B at BWI Airport.

Flash Flood in BALTIMORE, MARYLAND
From 12-AUG-14 13:15:00 to 12-AUG-14 17:45:00 (EST-5)
Location: BALTIMORE HIGHLANDS
Flood cause: Heavy Rain
Property damage: 20.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The stream gauge on Sawmill Creek exceeded its flood stage of 5 feet. Numerous roads were closed and flooding was reported in two businesses. This is the highest creek level ever recorded at this location and records date back to 1983. The record crest of 7.61 feet at 4:30 PM EDT.

Flash Flood in ANNE ARUNDEL, MARYLAND
From 12-AUG-14 12:15:00 to 12-AUG-14 17:45:00 (EST-5)
Location: FERNGLEN MANOR
Flood cause: Heavy Rain
Property damage: 2.83M
Crop damage: 0.00K
Reported by: Emergency Manager

Maryland Emergency Management Agency and FEMA estimated that many roads, bridges, buildings, and equipment were damaged or destroyed in Anne Arundel County during this flash flood event.

Flash Flood in PRINCE GEORGE'S, MARYLAND
From 12-AUG-14 13:50:00 to 12-AUG-14 21:30:00 (EST-5)
Location: CLINTON
Flood cause: Heavy Rain
Property damage: 1.36M
Crop damage: 0.00K
Reported by: Emergency Manager

Maryland Emergency Management Agency and FEMA estimated that many roads, bridges, buildings and equipment were damaged or destroyed in Prince George's County during this flash flood event.

Flash Flood in MONTGOMERY, MARYLAND
From 12-AUG-14 10:41:00 to 12-AUG-14 13:45:00 (EST-5)
Location: TAKOMA PARK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Sligo Creek overflowed its banks. A portion of Sligo Creek Parkway was closed. A water rescue had to be performed near the intersection of Sligo Creek Parkway and Kennebec Avenue. Sligo Creek went above flood stage at 11:41 AM EDT and peaked at 6.34 feet at 12:05 PM EDT and below at 12:22 PM EDT. It went above flood stage again at 12:55 PM EDT and peaked at 6.58 feet at 1:25 PM EDT and below at 1:55 PM EDT.

Flash Flood in MONTGOMERY, MARYLAND
From 12-AUG-14 11:34:00 to 12-AUG-14 15:45:00 (EST-5)
Location: PARKWOOD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Maryland route 185 was flooded and closed at the Rock Creek crossing near Beach Drive.

Flash Flood in MONTGOMERY, MARYLAND
From 12-AUG-14 12:08:00 to 12-AUG-14 15:45:00 (EST-5)
Location: GEORGETOWN JCT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

There was a water rescue on the 3100 Block of East-West Highway.

Flash Flood in MONTGOMERY, MARYLAND
From 12-AUG-14 12:28:00 to 12-AUG-14 15:45:00 (EST-5)
Location: WHEATON HILLS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Northwest Branch near Colesville was out of its banks rising 7 feet in two hours per the USGS Stream Gauge. The river reached flood stage at 1:28 PM EDT and peaked at 9.12 feet at 2 PM EDT.

Flash Flood in PRINCE GEORGE'S, MARYLAND
From 12-AUG-14 11:45:00 to 12-AUG-14 17:45:00 (EST-5)
Location: LAUREL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

There was water up to the headlights of cars off Bowie Road east of Route 1. The road was closed.

Flash Flood in BALTIMORE, MARYLAND
From 12-AUG-14 12:10:00 to 12-AUG-14 17:45:00 (EST-5)
Location: HALETHORPE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The east branch Herbert Run exceeded its flood stage of 7 feet. The stream was out of its banks and covering yards near the stream. It went above flood stage at 1:10 PM EDT and peaked at 9.08 feet at 1:45 PM EDT.

Flash Flood in ANNE ARUNDEL, MARYLAND
From 12-AUG-14 12:15:00 to 12-AUG-14 17:45:00 (EST-5)
Location: POINT PLEASANT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Dorsey Road was flooded and closed at Sawmill Creek between Central Avenue and Route 648.

Flash Flood in ANNE ARUNDEL, MARYLAND
From 12-AUG-14 12:47:00 to 12-AUG-14 17:45:00 (EST-5)
Location: STONY RUN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Aviation Boulevard was reported to be flooded and completely closed at the road leading to the MARC and Amtrack Station.

Flash Flood in ANNE ARUNDEL, MARYLAND
From 12-AUG-14 12:52:00 to 12-AUG-14 17:45:00 (EST-5)
Location: ARUNDEL GARDENS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

All lanes on route 3 were flooded by Sawmill Creek and closed near Furnace Branch Road.

Flash Flood in BALTIMORE CITY (C), MARYLAND
From 12-AUG-14 13:03:00 to 12-AUG-14 17:45:00 (EST-5)
Location: MT WINANS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Gwynns Falls exceeded its flood stage of 13 feet with minor overbank flooding occurring for about an hour near the Gwynns Falls Trail. It went above flood stage at 2:03 PM EDT and peaked at 13.78 feet at 2:20 PM EDT. It went below flood stage at 3:02 PM EDT.

Flash Flood in BALTIMORE CITY (C), MARYLAND
From 12-AUG-14 13:22:00 to 12-AUG-14 17:45:00 (EST-5)
Location: CURTIS BAY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

The outer loop of the Baltimore Beltway was flooded and completely closed at Quarantine Road. All traffic was diverted.

Flash Flood in BALTIMORE, MARYLAND
From 12-AUG-14 13:25:00 to 12-AUG-14 17:45:00 (EST-5)
Location: BALTIMORE HIGHLANDS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Maryland 295 was flooded and closed between the Baltimore Beltway and Westport.

Flash Flood in BALTIMORE CITY (C), MARYLAND
From 12-AUG-14 13:29:00 to 12-AUG-14 17:45:00 (EST-5)
Location: FAIRFIELD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

The Baltimore Harbor Tunnel was closed due to flooding.

Flash Flood in BALTIMORE, MARYLAND
From 12-AUG-14 13:53:00 to 12-AUG-14 17:45:00 (EST-5)
Location: HALETHORPE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

There was at least six inches of water flowing across Benson Avenue in Arbutus.

Flash Flood in ANNE ARUNDEL, MARYLAND
From 12-AUG-14 16:19:00 to 12-AUG-14 19:15:00 (EST-5)
Location: GREEN HAVEN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

The Baltimore Annapolis Boulevard was flooded and closed at Magothy River crossing near Pasadena.

Flash Flood in ANNE ARUNDEL, MARYLAND
From 12-AUG-14 16:23:00 to 12-AUG-14 19:15:00 (EST-5)
Location: PAROLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

There was a water rescue on West Street at Hudson Street. The car was stranded in three feet of water.

Flash Flood in CHARLES, MARYLAND
From 12-AUG-14 13:50:00 to 12-AUG-14 21:30:00 (EST-5)
Location: MATTAWOMAN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

There was more than six inches of water flowing over Timberbrook Drive in Waldorf. Yards were also flooded with water near a home.

Flash Flood in MONTGOMERY, MARYLAND
From 12-AUG-14 10:43:00 to 12-AUG-14 10:43:00 (EST-5)
Location: CARDEROCK SPGS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

There was a swift water rescue on Bradley Blvd and Mercy Hollow Lane.

Flood in HOWARD, MARYLAND
From 12-AUG-14 12:40:00 to 12-AUG-14 12:40:00 (EST-5)
Location: SAVAGE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

There were fields and trails flooded near the Little Patuxent River. It went above flood stage at 1740 UTC and peaked at 10.88 feet at 2045 UTC. It went below flood stage at 0006 UTC.

Flood in PRINCE GEORGE'S, MARYLAND
From 12-AUG-14 18:00:00 to 12-AUG-14 20:00:00 (EST-5)
Location: PISCATAWAY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Piscataway Creek exceeded the flood stage of 12 feet. Roads in the area were reported flooded. It went above flood stage at 2300 UTC and peaked at 13.41 feet at 0415 UTC. It went below flood stage at 0457 UTC.

Flood in PRINCE GEORGE'S, MARYLAND
From 12-AUG-14 18:23:00 to 12-AUG-14 20:23:00 (EST-5)
Location: PISCATAWAY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

There was a water rescue performed near Floral Park Road and St Marys View Drive near Piscataway Creek.

Flood in PRINCE GEORGE'S, MARYLAND
From 12-AUG-14 23:22:00 to 13-AUG-14 11:00:00 (EST-5)
Location: UPPER MARLBORO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

The western branch was out of its banks. Water Street in Upper Marlboro was flooded and reported to be closed. It was above flood stage at 0422 UTC and peaked at 0615 UTC. It went below flood stage at 1100 UTC.

Flash Flood in MONTGOMERY, MARYLAND
From 12-AUG-14 10:34:00 to 12-AUG-14 13:45:00 (EST-5)
Location: KENSINGTON ESTATES
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Cedar Lane was closed between Beach Drive and Maryland 355 Due to high water.

Flash Flood in PRINCE GEORGE'S, MARYLAND
From 12-AUG-14 13:50:00 to 12-AUG-14 21:30:00 (EST-5)
Location: CLINTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

There was a water rescue performed on Surratts Road at the Fox Run crossing near Branch Avenue.