Mashel River Flow Today
As of October 13, 2026 at 12:45 AM, the Mashel River is flowing at 11 cfs near La Grande, WA — 21% of normal for the date and down 8% in 24 hours. ❤ Favorite
Mashel River map
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Mashel River conditions today
Where the river is running versus normal, what’s rising or dropping, and what it means for a trip — built from the live USGS readings below.
At La Grande, the Mashel River is running 11 cfs — 21% of normal, down 8% since yesterday. Along the river, 1 of 1 reporting gauges are below normal (the typical gauge is at 21% of normal).
How the Mashel River compares to normal
Every reporting gauge from the top of the river to the bottom: bar length is today’s flow, colour is percent of normal for the date.
Flow along the river, upstream to downstream
- La Grande627 ft 11 cfs21%
Bar length uses a square-root scale so small headwater flows stay visible next to big downstream ones. Colour: <50% 50–90 90–110 110–150 150%+ of normal.
Where every gauge sits
One dot per Mashel River streamgauge, placed by its own percent of normal. The line is the typical gauge (21%).
Mashel River flow report
| Streamgage | Streamflow | % of normal | 24h | Gage height | Elevation |
|---|---|---|---|---|---|
|
Mashel River Near La Grande WA
Oct 13, 12:45 AM · USGS 12087000 |
11 cfs | 21% | -8% | 1.84 ft | 627 ft |
USGS provisional data. Readings are in each gauge’s local time; gauges silent for more than 3 days are marked “Last reported”. Tap any gauge for its hydrograph, forecast and history.
Mashel River streamflow over time
Daily total flow across every monitored gauge on the river (this total last updated earlier; the live gauge readings above are current).
Mashel River
The Mashel River is a 30-mile-long river located in the southwestern part of Washington State, USA. This river has a rich history, dating back to the early 1900s, when it was a major salmon fishery. Today, the river is mainly used for recreational purposes, including fishing, kayaking, and swimming. The Mashel River is fed by several tributaries, including the North Fork Mashel River and the Little Mashel River. The river flows into Alder Lake, a reservoir created by the Alder Dam, which was constructed in 1945. This dam is used for hydroelectric power generation and flood control. The reservoir also provides water for agricultural and urban use. Additionally, there are several other small dams along the Mashel River, including the Eatonville Dam and the Ohop Creek Dam.
Fishing near the Mashel River
About the Mashel River
How is the Mashel River flowing right now?
As of October 13, 2026, the Mashel River is flowing at 11 cfs near La Grande, WA, about 21% of normal for the date. Every gauge’s live reading is in the table above.
Is the Mashel River running high or low?
The typical gauge on the Mashel River is at 21% of normal for the date. Above 100% means higher than the historical average for this calendar day; below 100% means lower. The profile above shows which reaches are high or low.
Where does the data come from?
Discharge and gage height are from the USGS National Water Information System; flood stages from the National Weather Service. The history chart sums every monitored gauge on the river.
Can I get alerts for a gauge?
Yes — open any gauge from the table, favorite it in the Snoflo app and set a flow threshold.