Allegheny River at Sharpsburg Lock and Dam

NWS / NWPSSite ID: SHRP1active

NWS / NWPS SHRP1

Allegheny River • Allegheny • PA

Latest public reading10.53 ftObserved Sep 2, 2026 at 10:30 PM CDT

TrendNo clear trendForecast available

Data freshnessStaleBeyond three times the publishing interval. Value shown with its age, never hidden.Observation 160 minutes old

Flood contextNo source flood categoryFetched Timestamp unavailable

Stage and discharge

Observed source readings

Hourly readings and linked forecast values

Observed Forecast

Source-published thresholds where available

Action16.3 ftSource-backed threshold

Minor flood21 ftSource-backed threshold

Moderate flood22 ftSource-backed threshold

Major flood23 ftSource-backed threshold

Linked NWS/NWPS values

HPIFF • stage10.5 ftValid Sep 3, 2026 at 7:00 AM CDT

HPIFF • stage10.5 ftValid Sep 3, 2026 at 1:00 PM CDT

HPIFF • stage10.6 ftValid Sep 3, 2026 at 7:00 PM CDT

HPIFF • stage10.6 ftValid Sep 4, 2026 at 1:00 AM CDT

HPIFF • stage10.7 ftValid Sep 4, 2026 at 7:00 AM CDT

HPIFF • stage10.7 ftValid Sep 4, 2026 at 1:00 PM CDT

Stage

10.53 ft

Observed Sep 2, 2026 at 10:30 PM CDT

Alerts are shown only when the API returns a source-backed match.

Readings and thresholds stay tied to USGS, NOAA/NWS, or source-backed records.

Observed and fetched timestamps are shown separately when the API returns them.

Unavailable forecasts, alerts, and thresholds are shown as unavailable states.