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Verified gage-height and water-temperature observations are not currently available for Lewiston Lake in California. LakeRadar does not substitute modeled values.
Maintained within seasonal operating thresholds
Water levels managed within seasonal conservation thresholds
Verified freshwater recreation waterbody
Brisk (50–60°F) · Cold shock risk · Wetsuit recommended
No active telemetry gauge is currently mapped to Lewiston Lake. Not available from a verified source for this lake.
TRINITY R A LEWISTON CA · Oct 9, 8:45 AM UTC
Historical daily time series not currently recorded for this monitoring station. Real-time continuous digital USGS sensors are prioritized for major floodway rivers.
Tributary runoff, precipitation, and snowmelt elevate the waterbody to its annual summer recreation pool.
Water levels remain stable for peak boating, public park ramps, sport angling, and shoreline swimming.
Regulated seasonal drawdowns or natural seasonal minimums occur to prepare for winter freeze-up and spring capacity.
No recent observation table entries recorded for this site. In-situ stage height is verified through annual bathymetric surveys and state environmental monitoring rather than continuous automated gauge feeds.
Current index calculated from verified local atmospheric, hydrographic & alert inputs.
Very Poor / Avoid for swimming (28/100), from 5 available inputs. Supporting this: No active official alerts for this lake. 0% chance of precipitation. Working against it: Measured water temperature 51°F from a representative gauge 1.0 mi away. Provisional data. Immersion shock hazard: water below 55°F poses severe cold shock and rapid hypothermia risk. Water temperature is 51°F (below 55°F). Severe cold shock and hypothermia hazard upon immersion. Confidence is high (87%).
Continuous In-Situ Telemetry Notice: Active continuous automated telemetry stations are not currently installed directly within Lewiston Lake. Not available from a verified source for this lake.
Official vertical datum, navigational perimeter geometry, and bathymetric basin contours are cataloged from official hydrographic surveys conducted by California Department of Energy & Environmental Protection.