Reservoir · Kentucky · United States · USACE CWMS
Grayson Lake
74.5% full
Capacity
36.25 hm³
Volume stored
27 hm³
Vs month average
94% of normal
Coordinates
38.252°N, 82.986°W
Last updated
2026-10-15
Current fill
74.5%vs 7 days ago
+0.7%gaining
vs 1 year ago
N/A7-day trend
→stable
Drought context
Storage vs October average
94%of normal
74.5% full on 2026-10-15, against an average of 79.0% for October across 2 years of readings (-4.5 points).
Drought Monitor at this site · 13 October 2026
Nonenot in a drought category
Grayson 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. Kentucky 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: 2026-10-15.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 38.252, -82.986 · Open in Google Maps
About Grayson Lake
As of October 15, 2026, Grayson Lake is filled to 74.5% of its total capacity, holding roughly 27 hm³ of water out of a maximum 36 hm³. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has held broadly steady (+0.7 pts).
Across the readings we hold for Grayson Lake — 100 data points between October 16, 2021 and October 15, 2026 — the level has ranged from a low of 50.2% (December 5, 2021) to a high of 84.9% (October 16, 2021).
It is operated by USACE primarily for multiple purposes. It lies within the Kentucky basin at 38.252°N, 82.986°W.
Key facts
- Current fill level
- 74.5%
- Water stored
- 27 hm³
- Total capacity
- 36 hm³
- 7-day change
- ▲ 0.7 pts
- Primary use
- Multipurpose
- River basin
- Kentucky
- Operator
- USACE
- Coordinates
- 38.252°N, 82.986°W
- Last updated
- October 15, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 15 Oct 2026 | 74.5% | 27 |
| 14 Oct 2026 | 74.1% | 27 |
| 13 Oct 2026 | 74.2% | 27 |
| 12 Oct 2026 | 74.3% | 27 |
| 11 Oct 2026 | 74.0% | 27 |
| 10 Oct 2026 | 73.6% | 27 |
| 9 Oct 2026 | 73.5% | 27 |
| 8 Oct 2026 | 73.8% | 27 |
| 7 Oct 2026 | 74.0% | 27 |
| 6 Oct 2026 | 74.3% | 27 |
| 5 Oct 2026 | 74.5% | 27 |
| 4 Oct 2026 | 74.7% | 27 |