4 USGS Streamgages · Walker River system
W Walker River flows and levels
W Walker River is gauged at 4 USGS streamgages in California and Nevada, each tracked by Rivermatics. It feeds the West Walker River. It drains into the Walker River system. Drainage area at the gauges ranges from 181 square miles at W Walker River below L Walker River near Coleville, CA up to 964 at W Walker River near Hudson, NV. The gauged reach falls about 1,941 feet, from 6,591 feet down to 4,650. Rivermatics issues a daily machine-learned 14-day flow outlook for every one of them.
Gauges on this river, upstream to downstream
Ordered by drainage area, which is how far down the river each gauge sits. April and July figures are long-term median daily flows for that month from the USGS record — historical normals, not a forecast and not today's reading.
| Gauge | State | Drainage sq mi | Elevation ft | April p50 cfs | July p50 cfs | Forecast |
|---|---|---|---|---|---|---|
| W Walker River below L Walker River near Coleville, CA | CA | 181 | 6,591 | 279.7 | 304.4 | 14-day |
| W Walker River near Coleville, CA | CA | 250 | 5,520 | 285.5 | 332.1 | 14-day |
| W Walker River at Hoye Brg near Wellington, NV | NV | 497 | 4,980 | 241.2 | 389 | 14-day |
| W Walker River near Hudson, NV | NV | 964 | 4,650 | 182.3 | 250.9 | 14-day |
Typical flow by month at W Walker River near Hudson, NV
The furthest-downstream gauge on this river, so the fullest flow it carries here. Long-term daily discharge percentiles from the USGS record (up to 112 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.
| Month | Low p10 | Typical p50 | High p90 | Range |
|---|---|---|---|---|
| January | 24.8 | 44.2 | 113.3 | |
| February | 28.2 | 47.5 | 165.7 | |
| March | 33.2 | 71.6 | 251.8 | |
| April | 70.2 | 182.3 | 412.3 | |
| May | 188.6 | 335.8 | 881.6 | |
| June | 176.9 | 365.7 | 1,369.7 | |
| July | 76.3 | 250.9 | 770.2 | |
| August | 41.5 | 146.2 | 297 | |
| September | 30.9 | 97.6 | 197.7 | |
| October | 29.3 | 61.3 | 130.4 | |
| November | 24.6 | 45.4 | 108.8 | |
| December | 23 | 42.4 | 106 |
All values in cubic feet per second (cfs).
Common questions
- When does the W Walker River run highest?
- June, on the long-term record at W Walker River near Hudson, NV — the furthest-downstream gauge Rivermatics tracks on this river. Median daily flow there is about 365.7 cfs that month, against 42.4 cfs in December, the lowest. Upstream gauges peak on their own schedule; the table on this page gives April and July for each.
- How many gauges are on the W Walker River?
- Rivermatics tracks 4 USGS streamgages on the W Walker River, across California and Nevada. Each has its own page with the site's full flow record and monthly normals. The river may carry other gauges that publish neither daily values nor discharge statistics; those are not tracked here.
- Is there a flow forecast for the W Walker River?
- Yes, at 4 of the 4 gauges. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on each basin's observed flows, weather and snowpack, and issues a daily 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 each gauge's live screen.
- What river system is the W Walker River part of?
- The W Walker River drains into the Walker River system — it is a tributary somewhere in that chain, following the flowpath down to its terminal river. Rivermatics builds this from the USGS/geoconnex reference-mainstem network rather than from names.
- Can I use W Walker River 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.