Heavy rain event as low pressure moved through the Mid-Atlantic ahead of a slow moving cold front. Southerly flow ahead of the low pressure tapped into a moisture rich atmosphere over the Gulf of Mexico. While thunderstorms were isolated due to weaker shear and instability, the heaviest of the precipitation was able to bring down gusty winds from aloft. This also led to flooding across the region.

Flash Flood in PRINCE GEORGE'S, MARYLAND
From 29-SEP-15 22:29:00 to 30-SEP-15 00:06:00 (EST-5)
Location: LEELAND
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The stream gauge on Collington Branch at Leeland Road reached flood stage of 12 feet. It peaked at 13.04 feet on 9/29 at 23:00 EST.

Flood in BALTIMORE, MARYLAND
From 30-SEP-15 07:43:00 to 30-SEP-15 10:02:00 (EST-5)
Location: OREGON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The stream gauge on Western Run at Western Run reached flood stage of 8 feet. It peaked at 9.18 feet at 04:45 EST. Pastureland near the gauge began to flood and water began to cover Western Run Road.

Flood in FREDERICK, MARYLAND
From 29-SEP-15 22:35:00 to 30-SEP-15 09:00:00 (EST-5)
Location: FREDERICK
Flood cause: Heavy Rain
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Multiple reports of flooding continued overnight in Frederick Maryland. These reports include road closures at Stauffer Road at Israel Creek and English Muffin Way at Lime Kiln Way. Also, flooding continued at Frederick High School, Lincoln Elementary School and Thomas Johnson High School.

Flood in BALTIMORE, MARYLAND
From 30-SEP-15 01:37:00 to 30-SEP-15 02:18:00 (EST-5)
Location: COCKEYSVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The stream gauge on Beaverdam Run at Cockeysville reached a flood stage of 9 feet. It peaked at 9.11 feet at 0155 EST. Beaver Run Lane began to flood and water surrounded nearby buildings.

Flood in PRINCE GEORGE'S, MARYLAND
From 29-SEP-15 21:29:00 to 29-SEP-15 23:06:00 (EST-5)
Location: LEELAND
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The stream gauge at Collington Branch at Leeland Road reached a flood stage of 12 feet. It peaked at 13.04 feet on 9/29/15 at 23:00 EST.

Flash Flood in FREDERICK, MARYLAND
From 29-SEP-15 20:00:00 to 29-SEP-15 22:35:00 (EST-5)
Location: FT DETRICK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Multiple reports of flooding in Frederick Maryland. These reports include road closures at the 500 block of West Patrick Street, Market Street at South Street, Stauffer Road at Israel Creek and English Muffin Way at Lime Kiln Way. Also, flooding was reported at Frederick High School, Lincoln Elementary School and Thomas Johnson High School.

Flash Flood in BALTIMORE, MARYLAND
From 30-SEP-15 00:09:00 to 30-SEP-15 00:18:00 (EST-5)
Location: BUTLER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The stream gauge on Piney Run at Dover reached a flood stage of 8.5 feet. It peaked at 8.60 feet at 0115 EST. Agricultural fields began to flood.