A negatively tilted trough approached the area on the 24th as surface low pressure tracked up toward the Great Lakes and secondary low pressure formed along the Carolina Coast. Lift ahead of the negatively tilted trough/within the left exit region of an upper-level jet streak led to a period of moderate to heavy rain through much of the day on the 24th. Rainfall totals were generally between 1-2 inches across the area, resulting in many instances of flooding.

Flood in FREDERICK, MARYLAND
From 24-NOV-18 21:06:00 to 24-NOV-18 23:06:00 (EST-5)
Location: UTICA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Frederick County 911 Center reported about thirty roads closed due to high water. The areas that had the most closures were north and east of Frederick City.

Flood in MONTGOMERY, MARYLAND
From 24-NOV-18 19:36:00 to 24-NOV-18 21:36:00 (EST-5)
Location: BRIGHTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Car stranded in floodwaters on Brighton Dam Road at the Hawlings River.

Flood in MONTGOMERY, MARYLAND
From 24-NOV-18 19:12:00 to 24-NOV-18 21:12:00 (EST-5)
Location: ROCK CREEK FOREST
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Water rescue required of people stranded by floodwaters in the Meadowbrook Park Community Center.

Flood in MONTGOMERY, MARYLAND
From 24-NOV-18 20:32:00 to 24-NOV-18 22:32:00 (EST-5)
Location: ROCK CREEK FOREST
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Beach Drive closed from East West Highway to the DC line due to flooding of Rock Creek.

Flood in HOWARD, MARYLAND
From 24-NOV-18 21:23:00 to 25-NOV-18 03:35:00 (EST-5)
Location: SAVAGE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The stream gage on the Little Patuxent River at Savage exceeded the flood stage of 10 feet during the indicated period. Riverside trains began to flood, and water approached fields off of Bald Eagle Drive, as well as Brock Bridge Road. The peak level of 10.59 feet occurred at 11:00 PM on the 24th.

Flood in MONTGOMERY, MARYLAND
From 24-NOV-18 18:38:00 to 25-NOV-18 04:14:00 (EST-5)
Location: DARNESTOWN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The stream gage on the Seneca Creek at Dawsonville exceeded the 7.5 foot flood stage during the indicated period, leading to flooding of the Seneca Creek Greenway, as well as a small portion of Berryville Road west of Darnestown. The peak level of 8.18 feet occurred at 7:55 PM on the 25th.

Flood in MONTGOMERY, MARYLAND
From 24-NOV-18 21:06:00 to 24-NOV-18 23:06:00 (EST-5)
Location: MT ZION
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Car stranded in high water near the intersection of Volunteer Drive and Olney-Laytonsville Road.

Flood in HOWARD, MARYLAND
From 24-NOV-18 23:34:00 to 25-NOV-18 01:34:00 (EST-5)
Location: COLUMBIA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Road closed due to flooding at intersection of Route 108 and Woodland Road.

Flood in BALTIMORE, MARYLAND
From 24-NOV-18 23:56:00 to 25-NOV-18 03:52:00 (EST-5)
Location: OELLA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The stream gage on the Patapsco River at Elkridge (ERDM2) exceeded the 15 foot flood stage during the indicated period, leading to flooding along River Road in Patapsco Valley State Park. Large portions of the park also flooded near the playground off Gunn Road. The peak level of 15.3 feet occurred at 1:45 AM on the 25th.

Flood in ST. MARY'S, MARYLAND
From 25-NOV-18 00:45:00 to 25-NOV-18 00:45:00 (EST-5)
Location: GREAT MILLS
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The stream gage on the St. Marys River at Great Mills exceeded the 6 feet flood stage during the indicated period. Flat Iron Road flooded, and water entered some yards in Great Mills. The peak level of 6.00 feet occurred at 12:45 AM on the 25th.

Flood in FREDERICK, MARYLAND
From 25-NOV-18 08:35:00 to 25-NOV-18 17:08:00 (EST-5)
Location: LIME KILN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The river gage on the Monocacy River at Frederick exceeded the 15 foot flood stage during the indicated period, leading to flooding of portions of Pinecliff Park, as well as many of the low-lying fields at Monocacy National Battlefield. The peak level of 15.57 feet occurred at 1:45 PM on the 25th.

Flood in CARROLL, MARYLAND
From 24-NOV-18 18:56:00 to 24-NOV-18 23:36:00 (EST-5)
Location: KEYMAR
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The stream gage on the Big Pipe Creek at Bruceville exceeded the 8 foot flood stage during the indicated period, leading to flooding on Keysville-Bruceville Road. The peak level of 9.06 feet occurred at 9:00 PM on the 24th.

Flood in BALTIMORE, MARYLAND
From 24-NOV-18 20:36:00 to 25-NOV-18 05:42:00 (EST-5)
Location: GLENCOE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The stream gage on Gunpowder Falls at Glencoe exceeded the flood stage of 7 feet during the indicated time period, leading to flooding on portions of Upper Glencoe Road, Lower Glencoe Road, Sparks Road and Home Road. Additionally, water began to enter buildings off of Sparks Road. The peak level of 10.74 feet occurred at 12:15 AM on the 25th.

Flood in HARFORD, MARYLAND
From 24-NOV-18 21:11:00 to 24-NOV-18 23:46:00 (EST-5)
Location: SINGER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The stream gage on Otter Point Creek at Edgewood exceeded the 8 foot flood stage during the indicated period, leading to flooding along Winters Run Road near Singer Road. The peak level of 8.38 feet occurred at 10:15 PM on the 24th.