Whitemarsh Run at White Marsh, MD
River level and flood forecast · Baltimore County
The river is 7.8 ft below flood stage (11 ft).
Flow: 7 cubic feet per second (USGS).
River camera
Watch the time-lapse
Camera by the U.S. Geological Survey. Most take a picture every hour, some every few minutes; many stop at night.
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 Whitemarsh Run at White Marsh to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 18 ft |
| Moderate flood stage | 15 ft |
| Flood stage | 11 ft |
| Action stage | 9 ft |
| Record crest (August 1, 1971) | 18.49 ft |
What floods at each level
From the National Weather Service, highest first.
- 18 ftMajor flooding is occurring with buildings and roads severely impacted.
- 15 ftWater begins to affect buildings near the stream.
- 13 ftTown Center Court begins to flood.
- 11 ftWater begins to cover parking lots near the stream, particularly near Town Center Court.
Highest crests on record
- 18.49 ft — August 1, 1971
- 16.73 ft — September 30, 2010
- 16.17 ft — August 27, 1978
- 16.11 ft — June 27, 2015
- 15.86 ft — September 11, 1971
Recent crests: 11.9 ft (January 10, 2024) · 11.36 ft (September 13, 2023) · 12.44 ft (July 4, 2023) · 11.88 ft (July 3, 2022) · 11.55 ft (July 17, 2021)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (WHMM2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.