Clackamas River above Three Lynx Creek, OR

Gauge details

State

Oregon

Drainage area

479 sq mi

Subbasin (HUC-8)

17090011

Coordinates

45.12484, -122.07341

USGS site number

14209500

Records begin

1909-04-01 (117 years)

Rivermatics forecast

14-day flow outlook

14-day flow forecast

Based on observations through September 10 for Clackamas River above Three Lynx Creek, 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.

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 116 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.

All values in cubic feet per second (cfs).

Common questions

When does Clackamas River above Three Lynx Creek, OR normally run highest?

May, on the long-term record. The median daily flow that month is about 2,467.4 cfs, against 724.6 cfs in August, the lowest month. These are historical normals for the date, not a forecast and not today's reading.

What is a normal flow for Clackamas River above Three Lynx Creek, OR?

It depends on the month. In January, half of days historically fall near 2,131 cfs, with the middle 80% of days between 1,163.2 and 5,332.6 cfs. The month-by-month table on this page gives the full range.

How long has Clackamas River above Three Lynx Creek, OR been measured?

Discharge records at USGS site 14209500 begin in 1909, about 117 years, covering roughly 9,200 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.

Is there a flow forecast for Clackamas River above Three Lynx Creek, 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. 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 Clackamas River above Three Lynx Creek, OR?

The gauge sits at 45.12484, -122.07341, in Oregon, in hydrologic subbasin 17090011, draining roughly 479 square miles.

Can I use Clackamas River above Three Lynx Creek, 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 Clackamas River

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

• Clackamas River at Big Bottom, OR 136 sq mi
• Clackamas River above Three Lynx Creek, OR this page
• Clackamas River at Carter Bridge, near Estacada, OR 594 sq mi
• Clackamas River at Estacada, OR 671 sq mi
• Clackamas River near Oregon City, OR 940 sq mi

Other gauges in this subbasin

• Fish Creek near Three Lynx, OR
• Clackamas River at Carter Bridge, near Estacada, OR
• Clackamas River at Estacada, OR
• Clear Creek at Carver, OR
• Clackamas River near Oregon City, OR
• Clackamas River at Big Bottom, OR
• Collawash River near Breitenbush, OR
• Oak Grove Fork near Government Camp, OR