Conemaugh River at Johnstown, PA
River level and flood forecast · Cambria County
Normal3.8 ftas of Mon 2:15 PM
The river is 24.2 ft below flood stage (28 ft).
Flow: 1,980 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.
Flood stages
| Major flood stage | 34 ft |
| Moderate flood stage | 30 ft |
| Flood stage | 28 ft |
| Action stage | 23 ft |
| Record crest (May 31, 1889) | 41.6 ft |
What floods at each level
From the National Weather Service, highest first.
- 41.6 ftFlood of record from 1889.
- 34 ftFlood waters begin to reach the Horner Street Bridge.
- 33.5 ftApproximate level of the FEMA 0.2% Annual Chance Flood level (500-year flood).
- 28 ftUnprotected areas in the vicinity of the river will flood.
- 26 ftHigh water levels should be monitored for contunued rises.
- 23.5 ftApproximate level of the FEMA 1% Annual Chance Flood level (100-year flood).
- 22.5 ftFlood waters begin to reach the Coopersdale, or Laurel Avenue Bridge.
- 20.5 ftFlood waters begin to reach the Fourth Avenue Bridge and the Bethlehem Steel footbridge.
- 19 ftApproximate level of the FEMA 2% Annual Chance Flood level (50-year flood).
- 10.5 ftApproximate level of the FEMA 10% Annual Chance Flood level (100-year flood).
Highest crests on record
- 41.6 ft — May 31, 1889
- 39 ft — March 18, 1936
- 34 ft — July 20, 1977
- 30.2 ft — March 29, 1924
- 25.29999923706055 ft — January 19, 1996
Recent crests: 25.29999923706055 ft (January 19, 1996) · 34 ft (July 20, 1977) · 39 ft (March 18, 1936) · 30.2 ft (March 29, 1924) · 41.6 ft (May 31, 1889)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (JHSP1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.