West Branch Herring Run at Idlewylde, MD
River level and flood forecast · Baltimore County
The river is 7.9 ft below flood stage (9 ft).
Flow: 1 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 West Branch Herring Run at Idlewylde to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 14 ft |
| Moderate flood stage | 12.5 ft |
| Flood stage | 9 ft |
| Action stage | 6 ft |
| Record crest (August 14, 2012) | 10.87 ft |
What floods at each level
From the National Weather Service, highest first.
- 14 ftMajor flooding is ongoing with roads and structures flooded.
- 12.5 ftWater covers Regester Street and Hillen Road, and homes near the gauge begin to flood.
- 9 ftYards near the gage and portions of Mount Pleasant Golf Course begin to flood.
- 8 ftThe river exceeds its banks and begins to flood yards on the right bank.
- 6 ftWater begins to overflow the banks near Hillen Road, but no impacts are observed.
Highest crests on record
- 10.87 ft — August 14, 2012
- 9.41 ft — August 13, 2018
- 8.99 ft — June 27, 2016
- 7.7 ft — February 24, 2016
- 7.47 ft — July 11, 2019
Recent crests: 7.28 ft (June 10, 2021) · 7.47 ft (July 11, 2019) · 9.41 ft (August 13, 2018) · 8.99 ft (June 27, 2016) · 7.7 ft (February 24, 2016)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (IDLM2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.