Williamson River below Sprague River near Chiloquin water level

Name: Williamson River below Sprague River near Chiloquin water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, Williamson River, Oregon, United States

Directions

Below flood stage

Water level

3.42ft Steady over the last 24 hours

Measured Oct 18, 2026, 04:45 PM PDT (1 hour ago)

Flow: 524 cfs
Water temperature: 49 °F

History

7 days

Water level Forecast Minor flood stage

The forecast expects the river to fall to 3.43 ft by Sunday, October 18 at 12:00 PM. Issued Sunday, October 18 at 07:12 AM by NOAA National Weather Service.

What this means

The gauge at Williamson River below Sprague River near Chiloquin reads 3.42 ft, a normal level.

It is 5.58 ft below the flood stage of 9.00 ft.

It has barely moved over the past 24 hours. The forecast expects the river to fall to 3.43 ft by Sunday, October 18 at 12:00 PM. Over the past 30 days it has moved between 3.42 ft and 3.43 ft.

The water temperature at the gauge is 49 °F.

Judged against the official flood stage for this gauge. How to read levels

Key numbers

Highest on record: 10.27 ftJanuary 5, 1997
Forecast peak: 3.45 ftThursday, October 22 at 07:00 PM

What the stage means on the water

A normal level is usually prime time for floating and wade fishing, as long as the weather holds upstream.

The National Weather Service puts flood stage for this gauge at 9.00 ft, still 5.58 ft away.

What happens at each level

10.00 ft: Widespread flooding is occurring along the Williamson River from the Highway 97 bridge downstream to Upper Klamath Lake. Widespread farm land flooding is occurring. Numerous structures are flooded.
9.00 ft: The Williamson River is at flood stage. Water exceeds the channel of the river and begins to impact structures along the river and in low-lying areas near the river.
8.00 ft: The Williamson River is near bankfull stage. Water is nearing many structures along and enar the river. Water is close to structures at the Water Wheel Campground near Highway 97.
3.42 ft: Right now

Impact statements from the U.S. National Weather Service.

Highest crests on record

Chance of at least minor flooding in October to December: < 5 %.

Rank	Level	Date
1	10.27 ft	January 5, 1997
2	8.61 ft	February 12, 1996

Weather at the gauge

The forecast is not available right now.

Sunrise 07:26 AM Sunset 06:20 PM Daylight 10 hr, 54 min First quarter 54%

Map

Other gauges on the Williamson River

Gauge	Level	Compared with normal	24 hours	Distance
Williamson River near Klamath AgencyRiver gauge, Williamson River	0.0 cfs	Normal	±0	12 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Sprague River near ChiloquinRiver gauge, Sprague River	189 cfs	Very low	±0	2.1 mi
Wood River near Klamath AgencyRiver gauge, Wood River	304 cfs	Very low	−2.0 cfs	3.4 mi
Sevenmile Canal at Dike Road Branch, near Klamath AgencyCanal gauge, Sevenmile Canal	33.6 cfs	Low	−2.8 cfs	4.8 mi
Fourmile Canal near Klamath AgencyCanal gauge, Fourmile Canal	17.1 cfs	Normal	−9.2 cfs	9 mi
Fourmile Lake and Fourmile LakeLake	5,726.04 ft	Very low		20 mi
Upper Klamath Lake near K.falls(weight/mean Elev)Lake, Upper Klamath Lake	4,140.64 ft	Normal	+0.01 ft	22 mi
Link River at Klamath FallsRiver gauge, Link River	1,170 cfs	High	+10.0 cfs	24 mi
Annie Spring near Crater LakeRiver gauge, Annie Spring	0.8 cfs	Very low	±0	26 mi

Questions and answers

What is flood stage for the Williamson River below Sprague River near Chiloquin?

The official flood stage is 9.00 ft. The level is currently 5.58 ft below it.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Williamson River below Sprague River near Chiloquin today?

On Oct 18, 2026, 04:45 PM PDT, the water level was 3.42 ft. Steady over the last 24 hours.

Is Williamson River below Sprague River near Chiloquin rising or falling?

Steady over the last 24 hours.

Is the level of Williamson River below Sprague River near Chiloquin normal?

Below flood stage. Judged against the official flood stage for this gauge.

What is the highest water level ever recorded at Williamson River below Sprague River near Chiloquin?

The highest level on record is 10.27 ft on January 5, 1997.

Is Williamson River below Sprague River near Chiloquin expected to rise?

The forecast expects the river to fall to 3.43 ft by Sunday, October 18 at 12:00 PM.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:11502500 (Agency page)
Coordinates: 42.56437, -121.87971 (WGS84)
Vertical datum: NGVD29
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	3.42 ft	2026-10-18 23:45	Provisional
Flow	524 cfs	2026-10-18 23:45	Provisional
Water temperature	49 °F	2026-10-18 23:45	Provisional

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How to cite

U.S. Geological Survey: Williamson River below Sprague River near Chiloquin (usgs:11502500). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-states/oregon/williamson-river-below-sprague-river-near-chiloquin

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer