Chester Morse Lake Water Level

Washington · updated daily from the U.S. Geological Survey

1550.25 ft

Chester Morse Lake is current reading available and falling (-0.31 ft in the last 7 days).

Change since yesterday: -0.01 ft

Reading as of 2026-08-15

Where Chester Morse Lake sits historically

TODAY 1550.25 ftRECORD LOW1550.25 ft2026-08-15RECORD HIGH1564.81 ft2026-04-28

Today's level compared with every reading in our 0.3-year record for this lake.

Since yesterday

-0.01 ft

7-day change

-0.31 ft

30-day change

-4.16 ft

1-year change

— ft

Last 30 days

2026-07-161549.8–1554.9 ft2026-08-15

Last 12 months

2026-04-171548.5–1566.6 ft2026-08-15

Chester Morse Lake records and averages

Current level1550.25 ft
Record high1564.81 ft (2026-04-28)
Record low1550.25 ft (2026-08-15)
Average of all readings1559.01 ft
Data span0.3 years (121 readings)

Frequently asked questions

Is Chester Morse Lake full right now?

As of 2026-08-15, Chester Morse Lake sits at 1550.25 ft, which is current reading available.Over the past 30 days the level has fallen 4.16 ft.

What is the water level at Chester Morse Lake today?

The most recent reading is 1550.25 ft (2026-08-15), sourced from the U.S. Geological Survey. Readings on this page refresh automatically as the agency publishes new data.

What is the highest Chester Morse Lake has ever been?

The highest level in our records is 1564.81 ft on 2026-04-28. The lowest is 1550.25 ft on 2026-08-15. Our record covers about 0.3 years of readings.

Why is Chester Morse 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. Chester Morse Lake has fallen 4.16 ft over the past 30 days. For the operational reason on any given week, check the U.S. Geological Survey directly.

How much has Chester Morse Lake changed over the past year?

Year-over-year comparison is not available for this lake yet. The full-history chart above covers 0.3 years, with a record high of 1564.81 ft and a record low of 1550.25 ft.

Nearby lakes in Washington

Cedar Lake (Masonry water level
1542.8 ft · falling
Howard A Hanson Reservoir water level
1158.36 ft · falling
South Fork Tolt Reservoir water level
1741.46 ft · falling
Mud Mountain Lake water level
920.21 ft · falling
Keechelus Lake water level
2455.78 ft · falling
Sammamish Lake water level
25.79 ft · steady

Source: the U.S. Geological Survey. Readings are provisional and subject to revision by the publishing agency. All Washington lake levels.