Lake Hamilton lake and shoreline

Lake Hamilton Water Level

Officially Lake Hamilton (Ouachita River)

Arkansas

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Lake Hamilton

Lake Hamilton is currently 0.5 feet below full pool, with a water-surface elevation of 399.5 feet.

399.52 ft · Updated 2 hours ago · U.S. Geological Survey

Current level

399.52ft

−0.48 ft vs full pool

Normal

Vs full pool

Since last reading

Down 0.03 ft

Previous readingOct 24399.57 ft

7-day change

Up 0.03 ft

7-day trend: Stable

8 daily readings in the last 7 days

30-day change

Down 0.01 ft

30 daily readings in the last 30 days

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Water Level History

Current
399.52 ft
24h
-0.03 ft
7d
+0.03 ft
30d
-0.01 ft

Elevation (ft) MSL

Reference line is designed full pool.

Water Temperature

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Lake Level Context

Level remains below the full pool

Lake Hamilton is currently 399.52 ft, 0.48 ft below its full pool. The lake has risen 0.03 ft over the past 7 days and fallen 0.01 ft over the past 30 days.

Lake Hamilton Level Details

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

Conditions & Reference

Level status

0.48 ft below full pool

Current level
399.52 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

Surrounding county drought

Extreme Drought

100% of surrounding county in official drought (D1–D4).

Severity

NoneExtreme
Trend
Worsening

Surrounding county drought

Garland County, AR

Extreme Drought

Extreme Drought. The largest share of Garland County, AR is in Extreme Drought (D3), an official USDM drought category. These figures describe the surrounding county from the lake location, not the lake itself.. Trend: Worsening compared with last week. Official drought (D1–D4) yes

Severity

NoneExtreme

Weekly trend

Worsening

Compared with last week

Official drought (D1–D4)

Yes

100% of the surrounding county is in official drought categories (D1–D4). Dominant category remains Extreme Drought.

Typical county impacts (USDM guidance)

  • Significantly reduced streamflows in the surrounding county
  • Dry vegetation and elevated wildfire risk for the area
  • Nearby water-use restrictions may apply

U.S. Drought Monitor · map date Oct 20, 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 Garland County, AR

Daily level summary

DateLevelChange
Oct 25, 2026399.54-0.03
Oct 24, 2026399.57-0.04
Oct 23, 2026399.61-0.01
Oct 22, 2026399.62-0.03
Oct 21, 2026399.65+0.01
Oct 20, 2026399.64-0.05
Oct 19, 2026399.69+0.18

Common questions about Lake Hamilton’s water level

  • The current water level at Lake Hamilton is 399.52 ft (updated 2 hours 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.

  • Over the past seven days the Lake Hamilton lake level has held relatively steady — the current 7-day trend is Stable. The history chart above shows the full trend.

  • Based on the latest gauge reading, Lake Hamilton is currently 0.48 ft below full pool.

Lake level glossary

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

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