Heavy rain of 1-4 inches on June 3rd on saturated soils caused several instances of flooding in the western suburbs of Baltimore. Separately, the combined effects of several days of rain created somewhat widespread river flooding which continued to affect portions of the area through the early morning hours of June 6th.

Flood in WASHINGTON, MARYLAND
From 03-JUN-18 12:04:00 to 03-JUN-18 18:10:00 (EST-5)
Location: PEARRE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The USGS stream gage on Sideling Hill Creek near Bellegrove exceeded the 7.5 foot flood stage during the indicated times, causing flooding of lowlands near the creek. The peak level of 8.02 feet was observed at 4:00pm EST on June 3rd.

Flood in HOWARD, MARYLAND
From 03-JUN-18 19:17:00 to 03-JUN-18 20:24:00 (EST-5)
Location: ELLICOTT CITY
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 Ellicott City briefly exceeded the 122.50 foot flood elevation during the indicated period. The peak elevation of 122.60 feet was observed at 7:30pm EST on June 3rd. Water briefly reached the top of the inlet where the Patapsco and Tiber meet, but no inundation was reported.

Flood in MONTGOMERY, MARYLAND
From 04-JUN-18 09:14:00 to 05-JUN-18 19:34:00 (EST-5)
Location: POTOMAC
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The stream gage on the Potomac River at Little Falls/Brookmont exceeded the 10 foot flood stage during the indicated period. The peak level of 12.38 feet was observed at 3:30am EST on June 5th. At the peak levels, water covered multiple sections of the C&O Canal Towpath between mile markers 15 and 20.

Flood in HOWARD, MARYLAND
From 03-JUN-18 19:08:00 to 03-JUN-18 21:24:00 (EST-5)
Location: OAKLAND MILLS
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 near Columbia Town Center exceeded the 298.50 flood elevation during the indicated period. The peak elevation of 298.63 was observed at 8:00pm EST on June 3rd. At the peak level, South Entrance Road floods at the river.

Flood in BALTIMORE, MARYLAND
From 03-JUN-18 17:29:00 to 03-JUN-18 22:45:00 (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 near Catonsville exceeded the 20 foot flood stage during the indicated times, flooding River Road. The peak level of 22.17 feet was observed at 7:30pm EST on June 3rd.

Flood in MONTGOMERY, MARYLAND
From 04-JUN-18 00:16:00 to 06-JUN-18 01:15:00 (EST-5)
Location: WHITES FERRY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

A significant flood occurred on the Potomac River at Edwards Ferry during the indicated period, with the stream rising above the 15 foot flood stage. The peak level of 22.45 feet was observed at 10:30pm EST on June 4th. The store at Whites Ferry took on several feet of floodwater. Parking lots along the C&O Canal also flooded, along with portions of the towpath.

Flood in ANNE ARUNDEL, MARYLAND
From 03-JUN-18 17:41:00 to 04-JUN-18 00:02:00 (EST-5)
Location: RAYNOR HGTS
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 exceeded the 15 foot flood stage during the indicated period. In addition to minor inundation at Patapsco Valley State Park, several roads were closed in the Pumphrey and Linthicum areas due to the flooding or backwater caused by it. The peak stage of 18.01 feet occurred at 9:00pm EST on June 3rd.

Flood in FREDERICK, MARYLAND
From 04-JUN-18 00:13:00 to 05-JUN-18 16:18:00 (EST-5)
Location: BRUNSWICK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

A significant flood occurred on the Potomac River in Frederick County. The river exceeded the 16 foot flood stage during the indicated period, with a peak level observed of 25.83 feet at 7:30pm EST on June 4th. This was comparable to the flood observed in 2010. At the peak levels, significant flooding is occurring at the Brunswick campground. A NWS survey noted flooding of parking areas along the C&O Canal as well as water within a foot or so of reaching the railroad tracks near Point of Rocks.

Flood in PRINCE GEORGE'S, MARYLAND
From 03-JUN-18 14:19:00 to 03-JUN-18 22:25:00 (EST-5)
Location: ALEXANDRIA JCT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The stream gage on the Northeast Branch Anacostia River near Riverdale exceeded the 8 foot flood stage during the indicated period. The peak level of 10.20 feet was observed at 4:50pm EST on June 3rd. At these levels, flooding of portions of the Northeast Branch Trail and athletic fields are occurring.

Flood in ANNE ARUNDEL, MARYLAND
From 03-JUN-18 16:01:00 to 04-JUN-18 04:34:00 (EST-5)
Location: MARYLAND CITY
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 10 foot flood stage during the indicated period. The peak of 15.06 feet was observed at 10:00pm EST on June 3rd. Downstream of Savage, flooding occurred on Brock Bridge Road and Laurel-Fort Meade Road.

Flood in MONTGOMERY, MARYLAND
From 03-JUN-18 13:56:00 to 03-JUN-18 14:47:00 (EST-5)
Location: TAKOMA PARK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The stream gage on Sligo Creek near Takoma Park exceeded the 5.5 foot flood stage during the period indicated. The peak level of 5.75 feet was observed at 2:20pm EST on June 3rd. Sligo Creek Parkway was flooded.

Flood in PRINCE GEORGE'S, MARYLAND
From 03-JUN-18 19:42:00 to 04-JUN-18 22:05:00 (EST-5)
Location: UPPER MARLBORO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The stream gage on Western Branch at Upper Marlboro exceeded the 11 foot flood stage during the indicated period. The peak level of 15.18 feet was observed at 3:00am EST on June 4th. Water Street was flooded, along with the pedestrian bridge that runs alongside it. Race Track Road was also flooded.

Flood in WASHINGTON, MARYLAND
From 04-JUN-18 02:00:00 to 04-JUN-18 16:18:00 (EST-5)
Location: WILLIAMSPORT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The stream gage on the Potomac River at Williamsport exceeded the flood stage of 23 feet during the indicated period, and possibly earlier. The Potomac Fish and Game Club reported flooding on its property. Backwater flooding caused by the high waters flooded Maryland Route 68 in Williamsport. The peak level observed was 24.49 feet at 9:47am EST on June 4th.

Flood in HOWARD, MARYLAND
From 03-JUN-18 15:23:00 to 03-JUN-18 17:00:00 (EST-5)
Location: WOODSTOCK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

River Road flooded and closed at Route 851.

Flood in HOWARD, MARYLAND
From 03-JUN-18 16:44:00 to 03-JUN-18 18:00:00 (EST-5)
Location: SIMPSONVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Cedar Lane flooded and closed by the Middle Patuxent River.

Flood in MONTGOMERY, MARYLAND
From 03-JUN-18 19:51:00 to 03-JUN-18 21:00:00 (EST-5)
Location: BROOKEVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Brookeville Road flooded and closed.

Flood in CARROLL, MARYLAND
From 03-JUN-18 19:57:00 to 03-JUN-18 21:00:00 (EST-5)
Location: HENRYTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Marriottsville Road flooded and closed.

Flood in CARROLL, MARYLAND
From 03-JUN-18 19:57:00 to 03-JUN-18 21:00:00 (EST-5)
Location: SYKESVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Flooding on Main Street in Sykesville forced the closure of the road.

Flood in ANNE ARUNDEL, MARYLAND
From 04-JUN-18 02:46:00 to 04-JUN-18 05:00:00 (EST-5)
Location: TIPTON AAF ARPT
Flood cause: Heavy Rain
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Department of Highways

A portion of Fort Meade Road was washed out by flooding of the Little Patuxent River.

Flood in WASHINGTON, MARYLAND
From 04-JUN-18 05:46:00 to 04-JUN-18 08:00:00 (EST-5)
Location: WILLIAMSPORT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Maryland Route 68 was flooded and closed in Williamsport due to backwater flooding on Conococheague Creek just upstream of the Potomac River.