Nickajack Lake lake and shoreline

Nickajack Lake Water Level

Tennessee

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Nickajack Lake

Nickajack Lake is currently 1.3 feet below full pool, with a water-surface elevation of 632.7 feet.

632.72 ft · Updated 5 hours ago · NOAA / National Weather Service — Advanced Hydrologic Prediction Service

Current level

632.72ft

−1.28 ft vs full pool

Normal

Vs full pool

Since last reading

Up 0.24 ft

Previous readingSep 23632.91 ft

7-day change

Up 0.15 ft

7-day trend: Falling

8 daily readings in the last 7 days

30-day change

Up 0.38 ft

31 daily readings in the last 30 days

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Water Level History

Current
632.72 ft
24h
+0.24 ft
7d
+0.15 ft
30d
+0.38 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 632.72 ft, 1.28 ft below its full pool. The lake has risen 0.15 ft over the past 7 days and 0.38 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

1.28 ft below full pool

Current level
632.72 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

Watershed drought

Moderate Drought

100% of watershed in official drought (D1+).

Severity

NoneExtreme
Trend
Worsening

Watershed drought conditions

Marion County, TN

Moderate Drought

Moderate Drought. Moderate drought is affecting the watershed.. Trend: Worsening compared with last week. Official drought yes

Severity

NoneExtreme

Weekly trend

Worsening

Compared with last week

Official drought

Yes

100% of the watershed is currently classified as official drought (D1+).

Expected impacts

  • Stream inflows may run below normal
  • Lake levels can decline faster between rain events
  • Vegetation stress may increase over time

U.S. Drought Monitor · map date Sep 22, 2026. Updated weekly. droughtmonitor.unl.eduView drought map for Marion County, TN

Daily level summary

DateLevelChange
Sep 24, 2026633.15+0.24
Sep 23, 2026632.91-0.11
Sep 22, 2026633.02-0.64
Sep 21, 2026633.66+0.19
Sep 20, 2026633.47+0.52
Sep 19, 2026632.95+0.05
Sep 18, 2026632.9-0.1

Common questions about Nickajack Lake’s water level

  • The current water level at Nickajack Lake is 632.72 ft (updated 5 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 0.15 ft over the past week. See the history chart above for the full picture.

  • Based on the latest gauge reading, Nickajack Lake is currently 1.28 ft below full pool.

Lake level glossary

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

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