Nickajack Lake lake and shoreline

Nickajack Lake Water Level

Tennessee

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Nickajack Lake

Nickajack Lake is currently 0.7 feet below full pool, with a water-surface elevation of 633.3 feet.

633.30 ft · Updated 4 hours ago · NOAA / National Weather Service — Advanced Hydrologic Prediction Service

Current level

633.3ft

−0.70 ft vs full pool

Normal

Vs full pool

Since last reading

Up 0.21 ft

Previous readingNov 8633.25 ft

7-day change

Down 0.27 ft

7-day trend: Falling

8 daily readings in the last 7 days

30-day change

Up 0.13 ft

30 daily readings in the last 30 days

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Water Level History

Current
633.30 ft
24h
+0.21 ft
7d
-0.27 ft
30d
+0.13 ft

Elevation (ft) MSL

Reference line is designed full pool.

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Lake Level Context

Level remains below the full pool

Nickajack Lake is currently 633.30 ft, 0.70 ft below its full pool. The lake has fallen 0.27 ft over the past 7 days and risen 0.13 ft over the past 30 days.

Nickajack Lake Level Details

Reference elevations, recent daily readings, data sources, and answers to common questions.

Conditions & Reference

Level status

0.7 ft below full pool

Current level
633.3 ft
Full pool
634 ft
DatumVertical reference for published pool and stage elevations at this lake (from the lake catalog).
Not available
Elevation reference
MSL
Source
NOAA / NWS

Reference levels

  • Full pool634 ft

Surrounding county drought

Moderate Drought

99.5% of surrounding county in official drought (D1–D4).

Severity

NoneExtreme
Trend
Stable

Surrounding county drought

Marion County, TN

Moderate Drought

Moderate Drought. The largest share of Marion County, TN is in Moderate Drought (D1), an official USDM drought category. These figures describe the surrounding county from the lake location, not the lake itself.. Trend: Stable compared with last week. Official drought (D1–D4) yes

Severity

NoneExtreme

Weekly trend

Stable

Compared with last week

Official drought (D1–D4)

Yes

99.5% of the surrounding county is in official drought categories (D1–D4). Dominant category remains Moderate Drought.

Typical county impacts (USDM guidance)

  • Streamflows in the surrounding county may run below normal
  • Soils and vegetation can dry between rain events
  • Water managers may begin to watch supply more closely

U.S. Drought Monitor · map date Nov 3, 2026. Updated weekly. Official drought means U.S. Drought Monitor categories D1–D4 (Moderate through Exceptional). Abnormally Dry (D0) is not counted as official drought. droughtmonitor.unl.eduView drought map for Marion County, TN

Daily level summary

DateLevelChange
Nov 9, 2026633.46+0.21
Nov 8, 2026633.25-0.48
Nov 7, 2026633.73-0.17
Nov 6, 2026633.9+0.76
Nov 5, 2026633.14-0.65
Nov 4, 2026633.79+0.02
Nov 3, 2026633.77+0.04

Common questions about Nickajack Lake’s water level

  • The current water level at Nickajack Lake is 633.3 ft (updated 4 hours ago). You can track the Nickajack Lake lake level on the interactive chart and daily history above.

  • Full pool for Nickajack Lake is 634 ft — the normal conservation target elevation when the reservoir is at its designed summer or operating pool.

  • The current 7-day trend for the Nickajack Lake lake level is falling — falling about 0.27 ft over the past week. See the history chart above for the full picture.

  • Based on the latest gauge reading, Nickajack Lake is currently 0.70 ft below full pool.

Lake level glossary

Definitions for pool targets, datums, and how elevation readings are labeled.

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