Reservoir · Kansas · United States · BOR RISE
Webster Reservoir
Webster Reservoir and Dam
13.7% full
Capacity
95.44 hm³
Volume stored
13 hm³
Vs month average
46% of normal
Coordinates
39.391°N, 99.426°W
Last updated
2026-10-27
Current fill
13.7%vs 7 days ago
0.0 ppstable
vs 1 year ago
-1.3 ppyear-over-year
7-day trend
→stable
Drought context
Storage vs October average
46%of normal
13.7% full on 2026-10-27, against an average of 30.1% for October across 6 years of readings (-16.4 points).
Drought Monitor at this site · 20 October 2026
Nonenot in a drought category
Webster 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: BOR RISE — US Bureau of Reclamation — 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: 2026-10-27.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 39.391°N, 99.426°W · Open in Google Maps
About Webster Reservoir
As of October 27, 2026, Webster Reservoir is filled to 13.7% of its total capacity, holding 13.09 hm³ of water out of a maximum 95.44 hm³. At this level the reservoir is critically low.
Over the most recent week on record the fill level has held broadly steady (+0.0 pp), and it is 1.3 points below its level on the same date a year earlier.
Across the readings we hold for Webster Reservoir — 1946 data points between October 29, 2021 and October 27, 2026 — the level has ranged from a low of 13.5% (June 18, 2026) to a high of 91.2% (June 13, 2022). On average the reservoir is fullest around June and at its lowest around September.
It is operated by BOR primarily for multiple purposes. It is at 39.391°N, 99.426°W.
Key facts
- Current fill level
- 13.7% of total capacity
- Water stored
- 13.09 hm³
- Total capacity
- 95.44 hm³
- 7-day change
- No change
- Year-on-year
- ▼ 1.3 pp
- Primary use
- Multipurpose
- Operator
- BOR
- Coordinates
- 39.391°N, 99.426°W
- Last updated
- October 27, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 27 Oct 2026 | 13.7% | 13.09 |
| 26 Oct 2026 | 13.7% | 13.09 |
| 25 Oct 2026 | 13.7% | 13.06 |
| 24 Oct 2026 | 13.7% | 13.09 |
| 23 Oct 2026 | 13.7% | 13.11 |
| 22 Oct 2026 | 13.7% | 13.11 |
| 21 Oct 2026 | 13.7% | 13.11 |
| 20 Oct 2026 | 13.7% | 13.11 |
| 19 Oct 2026 | 13.7% | 13.11 |
| 18 Oct 2026 | 13.7% | 13.12 |
| 17 Oct 2026 | 13.8% | 13.16 |
| 16 Oct 2026 | 13.8% | 13.21 |