Live US lake & reservoir water levels
Percent full and 30-day trend from USGS and CDEC gages, with a plain-English read on whether you can launch a boat.
Is that level normal?
At 3,521.43 ft, Lake Powell is lower than it has been on this date in 64 years of daily record.
Get daily normal ranges, a threshold explorer and CSV records for Lake Powell. $19 once. Instant download. No subscription.
Lake Powell almanac, $19 All 19 lakes, $79 · see a free sample Open the sample almanac (Lake Powell)
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Lakes with a current reading
See all →Biggest 24-hour movers
| Lake | State | Level | 24h Δ (ft) |
|---|---|---|---|
| Lake Powell | UT | 3,533.6 ft | +1 |
| Nolin River Lake | KY | 512.4 ft | −0 |
| San Luis Reservoir | CA | 66% | −0 |
| Millerton Lake | CA | 43% | +0 |
| Lake Oroville | CA | 41% | −0 |
| Pine Flat Lake | CA | 18% | +0 |
Browse by state
Use this data in Claude or ChatGPT
The same gauge readings are available as a free MCP server, so an AI assistant can look up a lake's current level, recent history or a side-by-side comparison without you copying numbers across. It covers 44 lakes, needs no account or API key, and reads the agency gauges at the time you ask.
Claude.ai or ChatGPT. Add a custom connector and paste this URL:
https://lake-level-mcp.lipmichal.workers.dev/mcpClaude Code.
claude mcp add --transport http lake-level https://lake-level-mcp.lipmichal.workers.dev/mcpSource, tools and other install options on GitHub
For rivers, a companion server reads live USGS stream gauges and NWS flood forecasts the same way: River Level MCP on GitHub
