Low pressure tracked through the Ohio Valley and into the Great Lakes. The warm front associated with this system passed through our region during the first. Plenty of moisture from the Gulf of Mexico and the Atlantic Ocean combined with strong forcing associated with the warm front, causing thunderstorms to develop. Nearly saturated low levels and training activity supported very heavy rainfall and flash flooding was reported. The highest rainfall total observed in Baltimore County, where 4.56 inches of rain was recorded.

Flash Flood in PRINCE GEORGE'S, MARYLAND
From 01-JUN-12 16:42:00 to 01-JUN-12 19:15:00 (EST-5)
Location: COLEBROOKE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Old Silver Road at Route 458 was closed due to flash flooding.  A nearby rain gauge totaled 2.04 inches.

Flash Flood in PRINCE GEORGE'S, MARYLAND
From 01-JUN-12 16:50:00 to 01-JUN-12 19:15:00 (EST-5)
Location: KENT VLG
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

New York Avenue at the Baltimore-Washington Parkway was closed due to flash flooding.  A nearby rain gauge tallied 1.55 inches.

Flash Flood in PRINCE GEORGE'S, MARYLAND
From 01-JUN-12 16:45:00 to 01-JUN-12 19:15:00 (EST-5)
Location: GLEN DALE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Route 564 was closed at Greenbelt due to flash flooding.  Rainfall totals were as high at 1.90.

Flash Flood in PRINCE GEORGE'S, MARYLAND
From 01-JUN-12 16:50:00 to 01-JUN-12 19:15:00 (EST-5)
Location: RADIANT VLY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Exit 3 off of Route 50 was closed due to flash flooding.  A nearby rain gauge had 1.52 inches.

Flash Flood in BALTIMORE, MARYLAND
From 01-JUN-12 17:35:00 to 01-JUN-12 20:30:00 (EST-5)
Location: OELLA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Route 144 at Nine Mile Circle was closed due to flash flooding.  Nearby spotters observed 2.72 inches.

Flash Flood in PRINCE GEORGE'S, MARYLAND
From 01-JUN-12 16:35:00 to 01-JUN-12 19:15:00 (EST-5)
Location: LANDOVER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Landover Road was closed at the Baltimore Washington Parkway due to flash flooding.  A spotter nearby reported 2.60 inches of rain.

Flash Flood in PRINCE GEORGE'S, MARYLAND
From 01-JUN-12 17:05:00 to 01-JUN-12 19:15:00 (EST-5)
Location: GREENBELT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Interstate 95 was closed near the Baltimore-Washington Parkway due to flash flooding.  A nearby spotter recorded 1.41 inches of rain.

Flash Flood in BALTIMORE, MARYLAND
From 01-JUN-12 17:05:00 to 01-JUN-12 20:00:00 (EST-5)
Location: LUTHERVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Interstate 695 was closed at Exit 26 due to flash flooding.  A nearby rain gauge recorded 3.84 inches.

Flash Flood in PRINCE GEORGE'S, MARYLAND
From 01-JUN-12 17:25:00 to 01-JUN-12 19:15:00 (EST-5)
Location: CHEVERLY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Intersection of Route 214 and Maryland Park Drive was closed due to flash flooding.

Flash Flood in BALTIMORE, MARYLAND
From 01-JUN-12 17:30:00 to 01-JUN-12 20:30:00 (EST-5)
Location: FORK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Route 147 from Fork Road to Glen Arm Road was closed due to flash flooding.  A nearby spotter observed 2.72 inches of rain.

Flash Flood in CARROLL, MARYLAND
From 01-JUN-12 14:55:00 to 01-JUN-12 16:55:00 (EST-5)
Location: SANDYVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Sandymount Road was closed near Baltimore Boulevard.  A nearby rain gauge had 3.24 inches.

Flash Flood in FREDERICK, MARYLAND
From 01-JUN-12 14:15:00 to 01-JUN-12 16:30:00 (EST-5)
Location: FOUNTAIN MILLS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Green Valley Road was closed near Knolls Parkway.  A nearby rain gauge tallied 2.75 inches.

Flash Flood in MONTGOMERY, MARYLAND
From 01-JUN-12 14:50:00 to 01-JUN-12 17:00:00 (EST-5)
Location: CEDAR GROVE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Bridge on Kings Valley Road was inundated by flash flooding.  A nearby rain gauge recorded 2.72 inches.

Flash Flood in MONTGOMERY, MARYLAND
From 01-JUN-12 14:50:00 to 01-JUN-12 17:00:00 (EST-5)
Location: BROWNINGSVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Bridge on Bethesda Church Road near Clarksburg Road closed after being inundated by flash flooding.  A nearby rain gauge tallied 2.51 inches.

Flash Flood in CARROLL, MARYLAND
From 01-JUN-12 15:30:00 to 01-JUN-12 18:30:00 (EST-5)
Location: GREENMOUNT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Hanover Pike was closed near Basler Road.  A nearby spotter observed 3.07 inches.

Flash Flood in BALTIMORE, MARYLAND
From 01-JUN-12 16:15:00 to 01-JUN-12 19:15:00 (EST-5)
Location: CHADWICK MANOR
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

The exit ramp from Interstate 695 to Security Boulevard was closed due to flash flooding.  A nearby rain gauge totaled 3.99 inches.

Flash Flood in PRINCE GEORGE'S, MARYLAND
From 01-JUN-12 18:12:00 to 01-JUN-12 20:00:00 (EST-5)
Location: RIVERDALE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Swift water rescue of 3 teenagers in the Anacostia River near the 38th Street Bridge.

Flash Flood in FREDERICK, MARYLAND
From 01-JUN-12 17:00:00 to 01-JUN-12 19:00:00 (EST-5)
Location: URBANA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Route 355 at Big Woods Road was closed due to flash flooding.  A nearby spotter totaled 2.65 inches of rain.

Flood in CARROLL, MARYLAND
From 01-JUN-12 22:00:00 to 02-JUN-12 05:00:00 (EST-5)
Location: SHILOH
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Hoffman Mill Road was closed due to stream flooding on tributaries of the Northwest Branch Patapsco River.