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NWS / NWPSSite ID: ACMP1active

NWS / NWPS ACMP1

Allegheny River at C.W. Bill Young Lock and Dam

Allegheny River • Allegheny • PA

Latest public reading12.56 ftObserved May 14, 2026 at 11:45 AM CDT
TrendFallingForecast available
Data freshness StaleObservation 2104 minutes old
Flood contextNo source flood categoryFetched Timestamp unavailable

Stage and discharge

Observed source readings

Stage and discharge

Daily rollups and linked forecast values

Observed Forecast

Stage and discharge chart includes 2 observed points and 12 forecast points.

Line chart: Observed, Forecast024681012142026-05-122026-06-222026-06-232026-06-242026-06-24
Data series

Flood-stage context

Source-published thresholds where available

Action15 ftSource-backed threshold
Minor flood17 ftSource-backed threshold
Moderate flood20 ftSource-backed threshold
Major flood23 ftSource-backed threshold

Forecast

Linked NWS/NWPS values

HPIFF • stage10.3 ftValid Jun 21, 2026 at 1:00 PM CDT
HPIFF • stage10.3 ftValid Jun 21, 2026 at 7:00 PM CDT
HPIFF • stage10.3 ftValid Jun 22, 2026 at 1:00 AM CDT
HPIFF • stage10.3 ftValid Jun 22, 2026 at 7:00 AM CDT
HPIFF • stage10.2 ftValid Jun 22, 2026 at 1:00 PM CDT
HPIFF • stage10.2 ftValid Jun 22, 2026 at 7:00 PM CDT

Observations

stage

12.56 ft

Observed May 13, 2026 at 7:00 PM CDT

stage

12.78 ft

Observed May 11, 2026 at 7:00 PM CDT

Alerts

Alerts unavailable

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

Official public sources

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

Source freshness

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

Transparent methodology

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