Reservoir · Mississippi · United States · USACE CWMS
Grenada Lake
46.6% full
Capacity
990.49 hm³
Volume stored
462 hm³
Coordinates
33.809°N, 89.771°W
Last updated
2026-09-11
Current fill
46.6%vs 7 days ago
-0.5%losing
vs 1 year ago
N/A7-day trend
→stable
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: 2026-09-11.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 33.809, -89.771 · Open in Google Maps
About Grenada Lake
As of September 11, 2026, Grenada Lake is filled to 46.6% of its total capacity, holding roughly 462 hm³ of water out of a maximum 990 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 (-0.5 pts).
Across the readings we hold for Grenada Lake — 330 data points between September 12, 2021 and September 11, 2026 — the level has ranged from a low of 10.9% (December 20, 2021) to a high of 94.5% (September 12, 2021). On average the reservoir is fullest around October and at its lowest around January.
It is operated by USACE primarily for multiple purposes. It lies within the Mississippi basin at 33.809°N, 89.771°W.
Key facts
- Current fill level
- 46.6%
- Water stored
- 462 hm³
- Total capacity
- 990 hm³
- 7-day change
- ▼ 0.5 pts
- Primary use
- Multipurpose
- River basin
- Mississippi
- Operator
- USACE
- Coordinates
- 33.809°N, 89.771°W
- Last updated
- September 11, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 11 Sep 2026 | 46.6% | 462 |
| 10 Sep 2026 | 46.7% | 463 |
| 9 Sep 2026 | 46.7% | 463 |
| 8 Sep 2026 | 46.8% | 464 |
| 7 Sep 2026 | 47.0% | 465 |
| 6 Sep 2026 | 47.0% | 466 |
| 5 Sep 2026 | 47.1% | 466 |
| 4 Sep 2026 | 47.1% | 467 |
| 3 Sep 2026 | 47.2% | 467 |
| 2 Sep 2026 | 47.2% | 468 |
| 1 Sep 2026 | 47.3% | 469 |
| 31 Aug 2026 | 47.4% | 469 |