Snoqualmie River Near Carnation, WA
USGS Site No: 12149000 • Snoqualmie River • King County, WA
Snoqualmie River Near Carnation, WA on the Snoqualmie River is currently at 1,220 cfs (Low — 18th percentile for this date) . Gage height: 45.89 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for October 28 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.
| Percentile | Label | CFS Threshold | Today's Flow |
|---|---|---|---|
| 10th | Very Low threshold | 962 | |
| 25th | Low threshold | 1,420 | Today: 1,220 cfs |
| 50th (Median) | Normal (median) | 2,370 | |
| 75th | High threshold | 5,060 | |
| 95th | Very High threshold | 9,910 |
30-Day Hydrograph
Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.
30-Day Flow History
| Date | Discharge (CFS) | Gage Ht (ft) |
|---|---|---|
| May 28, 2026 | 1,080 | — |
| May 27, 2026 | 1,140 | — |
| May 26, 2026 | 1,250 | — |
| May 25, 2026 | 1,330 | — |
| May 24, 2026 | 1,390 | — |
| May 23, 2026 | 1,450 | — |
| May 22, 2026 | 1,510 | — |
| May 21, 2026 | 1,580 | — |
| May 20, 2026 | 1,700 | — |
| May 19, 2026 | 1,870 | — |
| May 18, 2026 | 2,100 | — |
| May 17, 2026 | 2,710 | — |
| May 16, 2026 | 2,930 | — |
| May 15, 2026 | 2,550 | — |
| Apr 20, 2026 | 2,960 | — |
| Apr 19, 2026 | 2,740 | — |
| Apr 18, 2026 | 2,750 | — |
| Apr 17, 2026 | 2,970 | — |
| Apr 16, 2026 | 3,420 | — |
| Apr 15, 2026 | 4,380 | — |
| Apr 14, 2026 | 2,690 | — |
| Apr 13, 2026 | 2,400 | — |
| Apr 12, 2026 | 2,210 | — |
| Apr 11, 2026 | 2,270 | — |
| Apr 10, 2026 | 2,300 | — |
| Apr 9, 2026 | 2,450 | — |
| Apr 8, 2026 | 2,800 | — |
| Apr 7, 2026 | 3,240 | — |
| Apr 6, 2026 | 2,880 | — |
| Apr 5, 2026 | 2,670 | — |
Station Information
- USGS Site No
- 12149000
- State
- WA
- County
- King County
- Coordinates
- 47.6659, -121.9254
- Drainage Area
- 603 mi²
- Datum (ft)
- 2.1
- HUC Code
- 17110010
Flood Stage Thresholds
- Flood Stage
- 54.0 ft
- Moderate Flood
- 56.0 ft
- Major Flood
- 58.0 ft
Currently 8.11 ft below flood stage.
Recent Extremes
- Max discharge
-
80,200 cfsDec 11, 2025
- Min discharge
-
351 cfsSep 28, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Boxley Creek Near Edgewick, WAVery High17.5 mi · 61 cfs
-
Cedar River at Cedar Falls, WALow18.3 mi · 115 cfs
-
Cedar River at Powerplant at Cedar Falls, WAHigh18.4 mi · 122 cfs
-
Canyon Creek Near Cedar Falls, WAVery High18.6 mi · 27 cfs
-
Green River at Tukwila, WAUnknown20.5 mi · 0 cfs