Okanogan River near Tonasket, WA
Eastern Washington · USGS gauge 12445000 · Updated Oct 24, 2:37 PM PDT · USGS data, provisional
Reading time: Oct 24, 2:15 PM PDT · Provisional data
Flow is far below normal for the date. Expect shallow riffles and slower water; some stretches may be hard to float and fish can be stressed by low flows. Check local reports for the specific stretch.
- Vs. normal for this date
- 2nd percentile
- Typical range (25th–75th)
- 906–1,458 cfs
- Median for this date
- 1,170 cfs
- 7-day low / high
- 479 / 503 cfs
Plain-language explanation
Okanogan River near Tonasket is flowing at 479 cubic feet per second (cfs) as of Oct 24, 2:15 PM PDT. That is among the lowest flows on record for this time of year: lower than about 98% of the daily flows this gauge has recorded for this date (give or take 7 days) over 98 years of record (1929–2026).
The middle half of those historical flows runs from 906 to 1,458 cfs, with a median of 1,170 cfs; the lowest 10% of days are at or below 726 cfs and the highest 10% at or above 1,890 cfs.
Over the last 24 hours the flow has been steady (-2.8%). In the last 7 days it ranged from 479 to 503 cfs.
Why this status: Flow is at or below the seasonal 10th percentile and in the lower 40% of all days on record.
Quick answers
Is the Okanogan River near Tonasket fishable today?
Flowcast's status for the Okanogan River near Tonasket is “Too low”: flow is 479 cfs, well below normal for the date, at the 2nd percentile for this date (as of Oct 24, 2:15 PM PDT). That describes flow only. It says nothing about water clarity, temperature, fish activity, access or fishing regulations.
What is the current flow of the Okanogan River near Tonasket?
479 cubic feet per second at USGS gauge 12445000 as of Oct 24, 2:15 PM PDT, provisional data.
Is the Okanogan River near Tonasket too high or too low right now?
It is on the low side: below the typical range for the date (906 to 1,458 cfs).
Is the Okanogan River near Tonasket rising or falling?
Over the last 24 hours the flow has been steady (-2.8%).
What is a normal flow for the Okanogan River near Tonasket in October?
For this date (give or take 7 days) the median is 1,170 cfs and the middle half of days runs 906 to 1,458 cfs, over 98 years of USGS record.
7-day trend
Hourly flow in cfs, Pacific time. The shaded band is the typical range (25th–75th percentile) for this date, shown when it falls within the chart.
| Day (Pacific) | Mean cfs | Percentile | Status that day |
|---|---|---|---|
| Sun Oct 18 | 498 | 4th | Too low |
| Mon Oct 19 | 495 | 4th | Too low |
| Tue Oct 20 | 493 | 3rd | Too low |
| Wed Oct 21 | 489 | 3rd | Too low |
| Thu Oct 22 | 497 | 3rd | Too low |
| Fri Oct 23 | 490 | 3rd | Too low |
| Sat Oct 24 (so far) | 479 | 2nd | Too low |
Seasonal context
Shaded band: 10th–90th percentile of daily flows through the year; dashed line: median. Log scale. Dot: today's flow. Based on 98 years of USGS daily data (1929–2026).
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Official resources
- USGS site page for gauge 12445000 (USGS: live readings, history, station details)
- Washington fishing regulations (WDFW)
- Emergency fishing rule changes (WDFW)
- WDFW fishing and stocking reports
Links go to the agencies' own websites and were checked as working. Flowcast does not summarize fishing or boating rules: regulations and closures change, and the agency pages are the authority.
About this gauge
- USGS site
- USGS-12445000
- USGS name
- Okanogan River Near Tonasket, Wa
- Drainage area
- 7,260 sq mi
- Location
- 48.6324, -119.4617
- Record in this analysis
- 1929–2026
Nearby gauges
- Methow River at Winthrop, WA Fishable/Floatable 206 cfs · about 35 mi away (straight line)
- Methow River near Pateros, WA Too low 313 cfs · about 45 mi away (straight line)
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