Reservoir · Pennsylvania · United States · USACE CWMS
Youghiogheny River Lake
99.8% full
Capacity
184.16 hm³
Volume stored
184 hm³
Vs month average
105% of normal
Coordinates
39.798°N, 79.366°W
Last updated
2026-10-28
Current fill
99.8%vs 7 days ago
-2.8 pplosing
vs 1 year ago
N/A7-day trend
↓falling
Drought context
Storage vs October average
105%of normal
99.8% full on 2026-10-28, against an average of 95.5% for October across 2 years of readings (+4.3 points).
Drought Monitor at this site · 20 October 2026
Nonenot in a drought category
Youghiogheny River Lake's coordinates fall outside every category on the weekly U.S. Drought Monitor map. That describes local conditions — rainfall, soil moisture, streamflow — not the reservoir's storage. Pennsylvania drought figures →
Data source: USACE CWMS — US Army Corps of Engineers — daily reservoir storage volume. Capacity is the design (normal full-pool) capacity from the US National Inventory of Dams (NID); fill % = current volume ÷ design capacity. Last reading: 2026-10-28.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 39.798°N, 79.366°W · Open in Google Maps
About Youghiogheny River Lake
As of October 28, 2026, Youghiogheny River Lake is filled to 99.8% of its total capacity, holding 183.76 hm³ of water out of a maximum 184.16 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has fallen by 2.8 percentage points.
Across the readings we hold for Youghiogheny River Lake — 251 data points between October 29, 2021 and October 28, 2026 — the level has ranged from a low of 36.5% (December 18, 2021) to a high of 104.9% (May 18, 2022). On average the reservoir is fullest around May and at its lowest around December.
It is operated by USACE primarily for multiple purposes. It is at 39.798°N, 79.366°W.
Key facts
- Current fill level
- 99.8% of total capacity
- Water stored
- 183.76 hm³
- Total capacity
- 184.16 hm³
- 7-day change
- ▼ 2.8 pp
- Primary use
- Multipurpose
- Operator
- USACE
- Coordinates
- 39.798°N, 79.366°W
- Last updated
- October 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Oct 2026 | 99.8% | 183.76 |
| 27 Oct 2026 | 100.0% | 184.17 |
| 26 Oct 2026 | 100.6% | 185.35 |
| 25 Oct 2026 | 101.0% | 186.01 |
| 24 Oct 2026 | 101.4% | 186.78 |
| 23 Oct 2026 | 101.9% | 187.72 |
| 22 Oct 2026 | 102.5% | 188.84 |
| 21 Oct 2026 | 102.6% | 188.91 |
| 20 Oct 2026 | 103.2% | 190.06 |
| 19 Oct 2026 | 104.2% | 191.86 |
| 15 Oct 2026 | 104.7% | 192.85 |
| 14 Oct 2026 | 104.2% | 191.82 |