Blacktail Creek above Grove Gulch at Butte, MT
River level and flood forecast · Silver Bow County
Normal4.8 ftas of Mon 1:30 PM
The river is 3.9 ft below flood stage (8.7 ft).
Flow: 10 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 5 PM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Flood stage | 8.7 ft |
| Record crest (July 31, 2025) | 7.42 ft |
What floods at each level
From the National Weather Service, highest first.
- 8.7 ftFlood waters may approach home owners properties on Yale Avenue and C Street in Butte. Additional flooding of low-lying areas along Blacktail Creek between Harrison Avenue and South Montana Street is possible.
Highest crests on record
- 7.42 ft — July 31, 2025
- 6.57 ft — June 8, 2020
- 5.98 ft — June 8, 2022
Recent crests: 7.42 ft (July 31, 2025) · 5.98 ft (June 8, 2022) · 6.57 ft (June 8, 2020)
Up and down the river, and nearby
- Silver Bow Creek at Warm Springs MT, MT
- Warm Springs Creek near Anaconda, MT
- Big Hole River at Maiden Rock near Divide, MT
- Jefferson River near Silver Star at Parsons Bridge, MT
- Boulder River (Central MT) near Boulder, MT
- Jefferson River near Twin Bridges, MT
- Big Hole River near Wise River, MT
- Clark Fork River at Deer Lodge, MT
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (BKCM8); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.