Northwest Branch at Kemp Mill, MD
River level and flood forecast · Montgomery County
The river is 7.3 ft below flood stage (9 ft).
Flow: 16 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 7 PM. Forecasts change as rain falls and as upstream water arrives.
Get flood alerts for this river
An email when the National Weather Service forecasts Northwest Branch at Kemp Mill to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 19 ft |
| Moderate flood stage | 12 ft |
| Flood stage | 9 ft |
| Action stage | 6 ft |
| Record crest (June 22, 1972) | 15.89 ft |
What floods at each level
From the National Weather Service, highest first.
- 19 ftWater reaches Randolph Road.
- 13 ftWater approaches a home on Kemps Mill Road.
- 12 ftKemps Mill Road begins to flood between Old Randolph Road and Glenallan Avenue.
- 10.5 ftWater covers the old bridge over Northwest Branch at Old Randolph Road.
- 9 ftBackyards of homes on Kemps Mill Road just south of Randolph Road are flooded.
- 7 ftWater begins to flood low-lying portions of the old Indian Spring Country Club.
- 6 ftThe upper portion of the Northwest Branch Trail is flooded. Lowland flooding begins along the creek but is affecting nothing other than the trail.
Highest crests on record
- 15.89 ft — June 22, 1972
- 13.61 ft — June 26, 2006
- 12.26 ft — April 30, 2014
- 12.24 ft — July 15, 1975
- 11.47 ft — September 5, 1979
Recent crests: 9.26 ft (January 10, 2024) · 10.11 ft (July 3, 2022) · 9.5 ft (September 1, 2021) · 9.31 ft (August 17, 2021) · 9.27 ft (December 16, 2018)
Up and down the river, and nearby
- Paint Branch Tributary Near Colesville, MD, MD
- Turkey Branch near Aspen Hill, MD
- Paint Branch near White Oak, MD
- Sligo Creek near Takoma Park, MD
- Rock Creek at Joyce Road in Washington, DC
- Hawlings River near Sandy Spring, MD
- Patuxent River below Brighton Dam, MD
- Patuxent River below Duckett Dam near Laurel, MD
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (CLAM2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.