Lake levels › Washington

South Fork Tolt Reservoir water level today

Normal for this time of year

1,725.17ft

feet above sea level ·

vs normal for Oct 10−6.8 ft
24 hours−0.04 ft
7 days−2.0 ft
30 days−7.5 ft
vs a year ago+0.8 ft

Is South Fork Tolt Reservoir low right now?

South Fork Tolt Reservoir was at 1,725.17 ft on October 10, 2026. That is 6.78 ft below the typical level for October 10, within the normal range. Over the past week the lake has been falling about 0.29 ft a day.

Last 12 monthsDaily level Normal range (10–90% of past years)
1,7161,7291,7421,7551,769NovDecJanFebMarAprMayJunJulAugSepOct

South Fork Tolt Reservoir on Oct 10 in past years

20251,725.3−0.1
20241,740.1−14.9
20231,722.9+2.3
20221,732.4−7.3
20211,736.3−11.1
20201,743.9−18.7

Level on the same date each year, and how today compares.

Daily levels, last two weeks

DateLevel (ft)Change
Oct 101,725.16−0.05
Oct 91,725.21−0.33
Oct 81,725.54−0.35
Oct 71,725.89−0.33
Oct 61,726.22−0.34
Oct 51,726.56−0.32
Oct 41,726.88−0.29
Oct 31,727.17−0.34
Oct 21,727.51−0.28
Oct 11,727.79−0.13
Sep 301,727.92+0.25
Sep 291,727.67−0.20
Sep 281,727.87−0.25
Sep 271,728.12−0.19

Daily means of the operator's readings (midnight to midnight, local time).

About South Fork Tolt Reservoir

10-year range
1,712.1 ft (October 9, 2015) to 1,766.1 ft (June 14, 2022)
Data
U.S. Geological Survey — USGS 12147900
Datum
NGVD29

Lakes near South Fork Tolt Reservoir

Questions

Is South Fork Tolt Reservoir low right now?

South Fork Tolt Reservoir was at 1,725.17 ft on October 10, 2026. That is 6.78 ft below the typical level for October 10, within the normal range. Over the past week the lake has been falling about 0.29 ft a day.

How often is the South Fork Tolt Reservoir level updated?

The operator reports every 15 minutes to an hour. This page refreshes several times a day; the time of the latest reading is shown next to the level.

Where does this data come from?

U.S. Geological Survey (USGS 12147900). Readings are provisional and can be revised.