Reservoir · Kansas · United States · USACE CWMS
Wilson Dam & Reservoir
80.0% full
Capacity
302.2 hm³
Volume stored
242 hm³
Vs month average
98% of normal
Coordinates
38.966°N, 98.496°W
Last updated
2026-10-28
Current fill
80.0%vs 7 days ago
-0.1 pplosing
vs 1 year ago
N/A7-day trend
→stable
Drought context
Storage vs October average
98%of normal
80.0% full on 2026-10-28, against an average of 81.6% for October across 2 years of readings (-1.6 points).
Drought Monitor at this site · 20 October 2026
Nonenot in a drought category
Wilson Dam & Reservoir'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. Kansas 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. 38.966°N, 98.496°W · Open in Google Maps
About Wilson Dam & Reservoir
As of October 28, 2026, Wilson Dam & Reservoir is filled to 80.0% of its total capacity, holding 241.86 hm³ of water out of a maximum 302.2 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-0.1 pp).
Across the readings we hold for Wilson Dam & Reservoir — 330 data points between October 29, 2021 and October 28, 2026 — the level has ranged from a low of 78.8% (September 23, 2026) to a high of 98.1% (May 25, 2022). On average the reservoir is fullest around May and at its lowest around September.
It is operated by USACE primarily for multiple purposes. It is at 38.966°N, 98.496°W.
Key facts
- Current fill level
- 80.0% of total capacity
- Water stored
- 241.86 hm³
- Total capacity
- 302.2 hm³
- 7-day change
- ▼ 0.1 pp
- Primary use
- Multipurpose
- Operator
- USACE
- Coordinates
- 38.966°N, 98.496°W
- Last updated
- October 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Oct 2026 | 80.0% | 241.86 |
| 27 Oct 2026 | 80.0% | 241.76 |
| 26 Oct 2026 | 80.1% | 241.96 |
| 25 Oct 2026 | 79.9% | 241.56 |
| 24 Oct 2026 | 79.9% | 241.56 |
| 23 Oct 2026 | 80.0% | 241.76 |
| 22 Oct 2026 | 80.0% | 241.76 |
| 21 Oct 2026 | 80.1% | 241.96 |
| 20 Oct 2026 | 80.0% | 241.76 |
| 19 Oct 2026 | 80.1% | 241.96 |
| 18 Oct 2026 | 80.1% | 242.16 |
| 17 Oct 2026 | 80.2% | 242.45 |