Lake Conditions
Illustrated map of Grenada Lake

Lake levels

Long Lake, MS

water level
165.33 ft
Condition
Falling
7-day change
-0.27 ft
30-day change
+0.00 ft
Since yesterday
+0.00 ft

Reading as of 2026-10-13 | the U.S. Geological Survey

Since yesterday
+0.00 ft
7-day change
-0.27 ft
30-day change
+0.00 ft
Average
164.40 ft

In brief

Long Lake stood at 165.33 feet on Oct 13, 2026.

Source: U.S. Geological Survey

Last 30 days

164.9165.3165.6165.9166.2SEP 13SEP 18SEP 23SEP 28OCT 03OCT 08OCT 13HIGH 165.84LOW 165.33165.33 ftLAST READING

Last 176 days

162.8163.6164.5165.4166.2APR 21MAY 20JUN 18JUL 17AUG 15SEP 13OCT 13HIGH 165.84LOW 163.14165.33 ftLAST READING

Level and data on file

Current level165.33 ft
Data span176 days, since 2026-04-21 (176 readings)

Level schematic

165.25165.29165.33165.37165.41165.33 ft

Frequently asked questions

Is Long Lake full right now?

As of 2026-10-13, Long Lake sits at 165.33 ft. Over the past 30 days the level has held steady 0.00 ft.

What is the water level at Long Lake today?

The most recent reading at Long Lake is 165.33 ft (2026-10-13), sourced from the U.S. Geological Survey. Readings on this page refresh automatically as the agency publishes new data.

How much has Long Lake moved recently?

Readings for Long Lake run from 163.14 ft to 165.84 ft over the 176 days on file, which begin 2026-04-21. That window is shorter than a year, so neither end is a record for the lake. A lake's range includes a full seasonal cycle, and this gauge has not yet published one.

Why is Long Lake low right now?

Reservoir levels move for four main reasons: rainfall and runoff into the basin, releases through the dam for downstream water supply, power generation or flood control, evaporation during hot months, and seasonal drawdown schedules set by the operating agency. Long Lake has held steady 0.00 ft over the past 30 days. For the operational reason on any given week, check the U.S. Geological Survey directly.

How much has Long Lake changed over the past year?

Year-over-year comparison is not available for Long Lake yet. The published series on this page covers 176 days, from 163.14 ft to 165.84 ft. That is not long enough to describe the lake's historical range.

Download and cite

Quote this reading

Long Lake stood at 165.33 feet on Oct 13, 2026.

From the U.S. Geological Survey, updated daily. The sentence changes with every new reading, so quote it with its date.

Download the full record

long-lake-ms-water-level-history.csv

176 readings, Apr 21, 2026 to Oct 13, 2026. Daily readings. Columns: date, water_level_ft. 3 KB.

How to cite

MyWaterLevel, “Long Lake water level, 2026,” data from U.S. Geological Survey, https://mywaterlevel.com/lake/ms/long-lake/, accessed Oct 13, 2026.

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Source: the U.S. Geological Survey. All Mississippi lake levels. Readings are provisional and may be revised. About our data and methods.