Loyalhanna Creek at Loyalhanna Dam, PA
USGS Site No: 03047000 • Loyalhanna Creek • Westmoreland County, PA
Loyalhanna Creek at Loyalhanna Dam, PA on the Loyalhanna Creek is currently at 1,470 cfs (Very High — 107th percentile for this date) . Gage height: 2.95 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for October 28 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.
| Percentile | Label | CFS Threshold | Today's Flow |
|---|---|---|---|
| 10th | Very Low threshold | 38 | |
| 25th | Low threshold | 58 | |
| 50th (Median) | Normal (median) | 123 | |
| 75th | High threshold | 238 | |
| 95th | Very High threshold | 678 |
30-Day Hydrograph
Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.
30-Day Flow History
| Date | Discharge (CFS) | Gage Ht (ft) |
|---|---|---|
| May 28, 2026 | 2,080 | — |
| May 27, 2026 | 2,120 | — |
| May 26, 2026 | 1,370 | — |
| May 25, 2026 | 252 | — |
| May 24, 2026 | 245 | — |
| May 23, 2026 | 238 | — |
| May 22, 2026 | 230 | — |
| May 21, 2026 | 225 | — |
| May 20, 2026 | 221 | — |
| May 19, 2026 | 221 | — |
| May 18, 2026 | 221 | — |
| May 17, 2026 | 222 | — |
| May 16, 2026 | 225 | — |
| May 15, 2026 | 225 | — |
| Apr 21, 2026 | 955 | — |
| Apr 20, 2026 | 661 | — |
| Apr 19, 2026 | 233 | — |
| Apr 18, 2026 | 229 | — |
| Apr 17, 2026 | 229 | — |
| Apr 16, 2026 | 226 | — |
| Apr 15, 2026 | 221 | — |
| Apr 14, 2026 | 285 | — |
| Apr 13, 2026 | 312 | — |
| Apr 12, 2026 | 384 | — |
| Apr 11, 2026 | 1,060 | — |
| Apr 10, 2026 | 1,560 | — |
| Apr 9, 2026 | 2,160 | — |
| Apr 8, 2026 | 2,660 | — |
| Apr 7, 2026 | 2,760 | — |
| Apr 6, 2026 | 2,620 | — |
Station Information
- USGS Site No
- 03047000
- State
- PA
- County
- Westmoreland County
- Coordinates
- 40.4589, -79.4494
- Drainage Area
- 290 mi²
- Datum (ft)
- 870.2
- HUC Code
- 05010008
Flood Stage Thresholds
- Flood Stage
- 5.5 ft
Currently 2.55 ft below flood stage.
Recent Extremes
- Max discharge
-
3,560 cfsMar 30, 2026
- Min discharge
-
28 cfsSep 4, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Conemaugh River at Tunnelton, PAVery High3.1 mi · 7,420 cfs
-
Kiskiminetas River at Vandergrift, PAVery High11.4 mi · 8,970 cfs
-
Loyalhanna Creek at Kingston, PAHigh12.8 mi · 489 cfs
-
Blacklick Creek at Josephine, PAHigh13.9 mi · 368 cfs
-
Crooked Creek at Idaho, PAHigh14.5 mi · 256 cfs