Allegheny River at Natrona, PA
Is Allegheny River at Natrona, PA flooding right now?
Allegheny River at Natrona, PA measured 10.54 ft on 2026-10-27 19:15:00 UTC. That observation was 10.5 ft below its 21 ft flood stage. This is the latest available reading, not a guarantee of current conditions.
Gauge height
10.54 ft
Streamflow
5,230 cfs
Minor flooding here begins at 21 ft, with major flooding at 26 ft. The highest crest on record was 32.1 ft on Wed, Mar 18, 1936.
Flood forecast
Flood stages at this gauge
| Category | Stage | Current distance |
|---|---|---|
| Action | 17.2 ft | 6.7 ft below |
| Minor flood | 21 ft | 10.5 ft below |
| Moderate flood | 24 ft | 13.5 ft below |
| Major flood | 26 ft | 15.5 ft below |
Highest crests on record
| Stage | Date |
|---|---|
| 32.1 ft | 1936-03-18 |
| 28.4 ft | 1942-12-30 |
| 27.6 ft | 1959-01-22 |
| 27.5 ft | 1972-06-23 |
| 26.4 ft | 1964-03-10 |
Last 7 days
Nearby gauges
| Gauge | Distance | County |
|---|---|---|
| Allegheny River (lower pool) at Natrona, PA | 0.2 mi | Allegheny County |
| Allegheny River at Lock & Dam 5 near Freeport, PA | 5.5 mi | Armstrong County |
| Allegheny River below Lock & Dam 5 near Freeport, PA | 5.5 mi | Armstrong County |
| Buffalo Creek near Freeport, PA | 7.0 mi | Butler County |
| Allegheny River at CW Bill Young L&D at Acmetonia, PA | 7.4 mi | Westmoreland County |
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Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.