Lake Hamilton lake and shoreline

Lake Hamilton Water Level

Officially Lake Hamilton (Ouachita River)

Arkansas

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Lake Hamilton is currently 0.3 feet below full pool, with a water-surface elevation of 399.7 feet.

399.73 ft · Updated 1 hour ago · U.S. Geological Survey

Current level

399.73ft

−0.27 ft vs full pool

Normal

Vs full pool

Since last reading

Up 0.05 ft

Previous readingSep 9399.71 ft

7-day change

Up 0.21 ft

7-day trend: Rising

8 daily readings in the last 7 days

30-day change

Up 0.19 ft

31 daily readings in the last 30 days

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Water Level History

Elevation (ft) MSL

400 ft400 ft400 ftFULL POOL 400.00 ftAug 12Sep 11

Level status

0.27 ft below full pool

Current level
399.73 ft
Full pool
400 ft
DatumVertical reference for published pool and stage elevations at this lake (from the lake catalog).
Not available
Elevation reference
MSL
Source
USGS

Reference levels

  • Full pool400 ft

Watershed drought

Severe Drought

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

Severity

NoneExtreme
Trend
Worsening

Watershed drought conditions

Garland County, AR

Severe Drought

Severe Drought. Severe drought conditions are present.. 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

  • Lower stream inflows
  • Lake levels may decline faster
  • Vegetation is becoming drier
  • Minor increase in wildfire risk

U.S. Drought Monitor · map date Sep 8, 2026. Updated weekly. droughtmonitor.unl.eduView drought map for Garland County, AR

Daily level summary

  • Sep 10, 2026

    399.76 ft

    +0.05 ft

  • Sep 9, 2026

    399.71 ft

    +0.04 ft

  • Sep 8, 2026

    399.67 ft

    +0.02 ft

  • Sep 7, 2026

    399.65 ft

    +0.04 ft

  • Sep 6, 2026

    399.61 ft

    +0.06 ft

  • Sep 5, 2026

    399.55 ft

    -0.06 ft

  • Sep 4, 2026

    399.61 ft

    +0.06 ft

Common questions about Lake Hamilton’s water level

  • The current water level at Lake Hamilton is 399.73 ft (updated 1 hour ago). You can track the Lake Hamilton lake level on the interactive chart and daily history above.

  • Full pool for Lake Hamilton is 400 ft — the normal conservation target elevation when the reservoir is at its designed summer or operating pool.

  • The current 7-day trend for the Lake Hamilton lake level is rising — rising about 0.21 ft over the past week. See the history chart above for the full picture.

  • Based on the latest gauge reading, Lake Hamilton is currently 0.27 ft below full pool.

Lake level glossary

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

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