Reservoir · Pennsylvania · United States · USACE CWMS
Lake Lynn Outflow
96.9% full
Capacity
89.82 hm³
Volume stored
87 hm³
Coordinates
39.721°N, 79.857°W
Last updated
2026-09-11
Current fill
96.9%vs 7 days ago
-0.4%losing
vs 1 year ago
N/A7-day trend
→stable
Data source: USACE CWMS — US Army Corps of Engineers — daily reservoir storage volume. Design capacity is unavailable for this site, so fill % is estimated against the 5-year maximum storage and may overstate fullness. Last reading: 2026-09-11.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 39.721, -79.857 · Open in Google Maps
About Lake Lynn Outflow
As of September 11, 2026, Lake Lynn Outflow is filled to 96.9% of its total capacity, holding roughly 87 hm³ of water out of a maximum 90 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-0.4 pts).
Across the readings we hold for Lake Lynn Outflow — 95 data points between June 6, 2026 and September 11, 2026 — the level has ranged from a low of 96.3% (June 22, 2026) to a high of 100.0% (August 17, 2026).
It is operated by USACE primarily for multiple purposes. It lies within the Pennsylvania basin at 39.721°N, 79.857°W.
Key facts
- Current fill level
- 96.9%
- Water stored
- 87 hm³
- Total capacity
- 90 hm³
- 7-day change
- ▼ 0.4 pts
- Primary use
- Multipurpose
- River basin
- Pennsylvania
- Operator
- USACE
- Coordinates
- 39.721°N, 79.857°W
- Last updated
- September 11, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 11 Sep 2026 | 96.9% | 87 |
| 10 Sep 2026 | 96.4% | 87 |
| 9 Sep 2026 | 98.1% | 88 |
| 8 Sep 2026 | 98.0% | 88 |
| 7 Sep 2026 | 96.8% | 87 |
| 6 Sep 2026 | 99.4% | 89 |
| 5 Sep 2026 | 97.9% | 88 |
| 4 Sep 2026 | 97.3% | 87 |
| 3 Sep 2026 | 96.9% | 87 |
| 2 Sep 2026 | 98.0% | 88 |
| 1 Sep 2026 | 98.4% | 88 |
| 31 Aug 2026 | 99.1% | 89 |