Allegheny River at Rimer Lock and Dam, PA
River level and flood forecast · Armstrong County
Normal9.5 ftas of Mon 3 PM
The river is 9.5 ft below flood stage (19 ft).
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.
Flood stages
| Major flood stage | 23 ft |
| Moderate flood stage | 21 ft |
| Flood stage | 19 ft |
| Action stage | 14 ft |
| Record crest (January 22, 1959) | 21.8 ft |
What floods at each level
From the National Weather Service, highest first.
- 20 ftCottages across the river from the lock flood.
- 19 ftLock walls overtopped.
- 17 ftNavigation suspended, lock out of service.
- 14 ftWater rises onto a section of armstrong trail above rimer on east bank of river.
Highest crests on record
- 21.8 ft — January 22, 1959
- 21.2 ft — February 14, 1966
- 20.3 ft — March 9, 1956
- 19.8 ft — June 23, 1972
- 19.6 ft — February 17, 1976
Recent crests: 18.61 ft (February 18, 2022) · 17.76 ft (February 8, 2019) · 17.16 ft (March 2, 2018) · 16.84 ft (March 9, 2009) · 19.25 ft (March 15, 2007)
Up and down the river, and nearby
- UpstreamAllegheny River at Parker, PA
- DownstreamAllegheny River at Mosgrove Lock and Dam, PA
- Red Bank Creek at St Charles, PA
- Allegheny River at Kittanning Lock and Dam, PA
- Mahoning Creek at Mahoning Dam Tailwater, PA
- Crooked Creek at Crooked Creek Dam Tailwater, PA
- Allegheny River at Clinton Lock and Dam, PA
- Buffalo Creek (PA) at Iron Bridge, PA
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (RMRP1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.