Norris Lake siteid=249 · TN
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Water level & flow 2023-07-26 .. 2026-09-06 · SWOT depth track + USGS NWIS gauges · one linked timeline
current depth
174 ft
drawdown
16.1 ft
below full pool
water level (depth)
92%
174 of
190 ft deep
water stored (volume)
50%
est. from bathymetry
measured
Jul 26
swot_lakesp
pipeline refresh
2026-09-17 21:59 UTC
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elevation trend: robust smoothing + outlier removal · raw value on hover
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Inflow / outflow USGS NWIS daily discharge · same timeline as above
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