Rivermatics

USGS Streamgage 10296000

W Walker River below L Walker River near Coleville, CA

W Walker River below L Walker River near Coleville, CA is USGS streamgage 10296000 in California, monitoring river discharge in hydrologic subbasin 16050302. It sits on the W Walker River, alongside 3 other gauges Rivermatics tracks on the same river. It drains a watershed of about 181 square miles. Discharge records at this site go back to 1937. Typical flow runs near 304.4 cfs in July and 279.7 cfs in April, with the higher of the two arriving in July. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead.

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Gauge details

State
California
Drainage area
181 sq mi
Gauge elevation
6,591 ft
Subbasin (HUC-8)
16050302
Coordinates
38.37964, -119.45016
USGS site number
10296000
Records begin
1937-12-11 (89 years)
Rivermatics forecast
14-day flow outlook

14-day flow forecast

Based on observations through for W Walker River below L Walker River near Coleville, CA. 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
29.5 31.4 33.1
28.8 31 33
28.3 30.8 33
28 30.6 33
27.7 30.4 32.9
27.3 30.1 32.7
26.9 29.8 32.5
26.6 29.6 32.4
26.1 29.3 32.2
25.8 29.1 32.1
26 29.6 33.4
26.2 29.9 33.7
25.5 29.3 33
25.1 28.9 32.6

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 89 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 28.7 50.7 124.5
February 34.6 59.9 117.1
March 50.9 97.1 203
April 127 279.7 558.4
May 323.6 696.6 1,423.4
June 274.6 832.6 1,836.3
July 81.2 304.4 1,168.3
August 37.2 90.9 333.4
September 20.7 53 136.3
October 21.7 45.5 91.9
November 26.1 48.6 108.2
December 27.4 47.4 108.5

All values in cubic feet per second (cfs).

Common questions

When does W Walker River below L Walker River near Coleville, CA normally run highest?
June, on the long-term record. The median daily flow that month is about 832.6 cfs, against 45.5 cfs in October, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for W Walker River below L Walker River near Coleville, CA?
It depends on the month. In January, half of days historically fall near 50.7 cfs, with the middle 80% of days between 28.7 and 124.5 cfs. The month-by-month table on this page gives the full range.
How long has W Walker River below L Walker River near Coleville, CA been measured?
Discharge records at USGS site 10296000 begin in 1937, about 89 years, covering roughly 9,130 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for W Walker River below L Walker River near Coleville, CA?
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 W Walker River below L Walker River near Coleville, CA?
The gauge sits at 38.37964, -119.45016, in California, in hydrologic subbasin 16050302, at an elevation of about 6,591 feet, draining roughly 181 square miles.
Can I use W Walker River below L Walker River near Coleville, CA 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 W Walker River

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

Other gauges in this subbasin