Rivermatics

USGS Streamgage 11510700

Klamath River below John C.Boyle Pwrplnt, near Keno, OR

Klamath River below John C.Boyle Pwrplnt, near Keno, OR is USGS streamgage 11510700 in Oregon, monitoring river discharge in hydrologic subbasin 18010206. It sits on the Klamath River, alongside 12 other gauges Rivermatics tracks on the same river. It drains a watershed of about 4,080 square miles. Discharge records at this site go back to 1959. Typical flow runs near 735.3 cfs in July and 1,814.3 cfs in April, with the higher of the two arriving in April. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead, alongside daily high and low water-temperature forecasts.

View live conditions & forecast →

Gauge details

State
Oregon
Drainage area
4,080 sq mi
Gauge elevation
3,275 ft
Subbasin (HUC-8)
18010206
Coordinates
42.08459, -122.07335
USGS site number
11510700
Records begin
1959-01-01 (67 years)
Rivermatics forecast
14-day flow outlook + water temperature

14-day flow forecast

Based on observations through for Klamath River below John C.Boyle Pwrplnt, near Keno, OR. Each day carries a median estimate and the band the model expects the flow to fall within — not a single number to plan against. Forecasts are re-issued daily; see the live screen for the current outlook.

Forecast daily mean discharge in cubic feet per second, by date
Date Low p10 Expected p50 High p90 Range
938 956 975
932 963 1,002
928 966 1,030
920 965 1,069
912 963 1,089
903 961 1,111
895 960 1,115
888 958 1,116
882 956 1,111
873 956 1,123
864 955 1,127
853 952 1,106
851 950 1,127
851 950 1,140

All values in cubic feet per second (cfs). Estimates only — do not use them for navigation or for any safety, rescue, or emergency decision.

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 67 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.

Historical monthly discharge percentiles in cubic feet per second
Month Low p10 Typical p50 High p90 Range
January 752 1,450.3 3,619
February 674 1,432.4 4,311.4
March 754.4 1,805.8 6,001.6
April 884.2 1,814.3 4,867.3
May 722.6 1,386.8 3,374.8
June 536.9 902.6 2,047
July 451.7 735.3 1,047.5
August 586.3 922.4 1,127.4
September 692.8 1,049.3 1,521.3
October 803.8 1,220.3 2,140.6
November 809 1,237.3 2,842
December 765.2 1,385.2 3,358.4

All values in cubic feet per second (cfs).

Common questions

When does Klamath River below John C.Boyle Pwrplnt, near Keno, OR normally run highest?
April, on the long-term record. The median daily flow that month is about 1,814.3 cfs, against 735.3 cfs in July, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Klamath River below John C.Boyle Pwrplnt, near Keno, OR?
It depends on the month. In January, half of days historically fall near 1,450.3 cfs, with the middle 80% of days between 752 and 3,619 cfs. The month-by-month table on this page gives the full range.
How long has Klamath River below John C.Boyle Pwrplnt, near Keno, OR been measured?
Discharge records at USGS site 11510700 begin in 1959, about 67 years, covering roughly 9,131 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Klamath River below John C.Boyle Pwrplnt, near Keno, OR?
Yes. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on this basin's observed flows, weather, and snowpack, and issues a daily flow outlook reaching 14 days ahead: a median estimate inside a confidence band, not a single number to bet on. A companion model forecasts each day's water-temperature high and low. Every forecast is scored against days the model never trained on, and that track record is published on the live gauge screen. Open live conditions to see the current outlook.
Where is Klamath River below John C.Boyle Pwrplnt, near Keno, OR?
The gauge sits at 42.08459, -122.07335, in Oregon, in hydrologic subbasin 18010206, at an elevation of about 3,275 feet, draining roughly 4,080 square miles.
Can I use Klamath River below John C.Boyle Pwrplnt, near Keno, OR data for flood or safety decisions?
No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.

Upstream and downstream on the Klamath River

Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Klamath River in full.

Other gauges in this subbasin