Reservoir · Minnesota · United States · USACE CWMS
Lake Winnibigoshish Dam
82.9% full
Capacity
1,039.55 hm³
Volume stored
861 hm³
Vs month average
104% of normal
Coordinates
47.430°N, 94.050°W
Last updated
2026-10-29
Current fill
82.9%vs 7 days ago
+1.1 ppgaining
vs 1 year ago
N/A7-day trend
↑rising
Drought context
Storage vs October average
104%of normal
82.9% full on 2026-10-29, against an average of 79.9% for October across 5 years of readings (+3.0 points).
Drought Monitor at this site · 27 October 2026
D2severe drought
The ground at Lake Winnibigoshish Dam's coordinates falls inside the D2 area of the weekly U.S. Drought Monitor map. That describes local conditions — rainfall, soil moisture, streamflow — not the reservoir's storage. Minnesota drought figures →
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: 2026-10-29.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 47.430°N, 94.050°W · Open in Google Maps
About Lake Winnibigoshish Dam
As of October 29, 2026, Lake Winnibigoshish Dam is filled to 82.9% of its total capacity, holding 861.28 hm³ of water out of a maximum 1,040 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has risen by 1.1 percentage points.
Across the readings we hold for Lake Winnibigoshish Dam — 1371 data points between October 30, 2021 and October 29, 2026 — the level has ranged from a low of 73.3% (November 10, 2021) to a high of 100.0% (June 26, 2022). On average the reservoir is fullest around June and at its lowest around November.
It is operated by USACE primarily for multiple purposes. It is at 47.430°N, 94.050°W.
Key facts
- Current fill level
- 82.9% of total capacity
- Water stored
- 861.28 hm³
- Total capacity
- 1,040 hm³
- 7-day change
- ▲ 1.1 pp
- Primary use
- Multipurpose
- Operator
- USACE
- Coordinates
- 47.430°N, 94.050°W
- Last updated
- October 29, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 29 Oct 2026 | 82.9% | 861.28 |
| 28 Oct 2026 | 81.7% | 849.5 |
| 27 Oct 2026 | 81.4% | 846.64 |
| 26 Oct 2026 | 81.6% | 847.82 |
| 25 Oct 2026 | 82.1% | 853.92 |
| 24 Oct 2026 | 82.4% | 856.62 |
| 23 Oct 2026 | 81.4% | 846.7 |
| 22 Oct 2026 | 81.8% | 850.82 |
| 21 Oct 2026 | 81.9% | 851.66 |
| 20 Oct 2026 | 81.8% | 850.28 |
| 19 Oct 2026 | 81.9% | 851.22 |
| 18 Oct 2026 | 82.1% | 853.69 |