Snoqualmie River near Carnation, WA
North Cascades & Puget Sound · USGS gauge 12149000 · Updated Oct 24, 3:19 AM PDT · USGS data, provisional
Reading time: Oct 24, 2:15 AM 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)
- 1,210–3,930 cfs
- Median for this date
- 2,100 cfs
- 7-day low / high
- 476 / 697 cfs
Plain-language explanation
Snoqualmie River near Carnation is flowing at 485 cubic feet per second (cfs) as of Oct 24, 2:15 AM 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 1,210 to 3,930 cfs, with a median of 2,100 cfs; the lowest 10% of days are at or below 730 cfs and the highest 10% at or above 6,640 cfs.
Over the last 24 hours the flow has been steady (-3.4%). In the last 7 days it ranged from 476 to 697 cfs.
Why this status: Flow is at or below the seasonal 10th percentile and in the lower 40% of all days on 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 | 673 | 12th | Fishable/Floatable |
| Mon Oct 19 | 627 | 10th | Too low |
| Tue Oct 20 | 574 | 7th | Too low |
| Wed Oct 21 | 538 | 4th | Too low |
| Thu Oct 22 | 512 | 3rd | Too low |
| Fri Oct 23 | 493 | 2nd | Too low |
| Sat Oct 24 (so far) | 488 | 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).
About this gauge
- USGS site
- USGS-12149000
- USGS name
- Snoqualmie River Near Carnation, Wa
- Drainage area
- 603 sq mi
- Location
- 47.6659, -121.9254
- Record in this analysis
- 1929–2026
Typical uses
Notes: Rain-driven lower river; can rise quickly in fall and winter storms. (Hand-written general note, not from USGS data.)
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