Patapsco River near Catonsville, MD
River level and flood forecast · Baltimore County
The river is 8.7 ft below flood stage (20 ft).
Flow: 255 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 Patapsco River near Catonsville to flood, when it floods, and when it's over.
Flood stages
| Moderate flood stage | 25 ft |
| Flood stage | 20 ft |
| Action stage | 18 ft |
| Record crest (May 27, 2018) | 27.15 ft |
What floods at each level
From the National Weather Service, highest first.
- 25 ftSignificant flooding is occurring along the river.
- 20 ftRiver Road begins to flood.
Highest crests on record
- 27.15 ft — May 27, 2018
- 27.14 ft — July 31, 2016
- 25.17 ft — September 7, 2011
- 23.83 ft — April 30, 2014
- 22.17 ft — June 4, 2018
Recent crests: 19.14 ft (December 16, 2018) · 20.39 ft (September 10, 2018) · 22.17 ft (August 4, 2018) · 20.33 ft (July 26, 2018) · 20.72 ft (July 26, 2018)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (CTSM2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.