Naches HUC8 17030002
A 2,861 km² sub-basin of the Pacific Northwest region in WA. Drought coverage is from the US Drought Monitor (map of 2026-10-13); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
46
Stressed
Drought index
112
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
100%
of 1 reporting
Median flow
57%
p10 of record
Water assets
2,608
13 springs · 1,283 wells
USGS gauges (2)
- AMERICAN RIVER NEAR NILE, WA1248850032 cfsp10 · much below normal
- OAK CREEK ABOVE TIETON RIVER NEAR NACHES, WA124929002 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-18 | 112 | 0 | 1/1 | p10 |
| 2026-10-17 | 112 | 0 | 1/1 | p10 |
| 2026-10-16 | 112 | 0 | 1/1 | p10 |
| 2026-10-15 | 112 | 0 | 1/1 | p10 |
| 2026-10-14 | 112 | 0 | 1/1 | p10 |
| 2026-10-13 | 112 | 0 | 1/1 | p11 |
| 2026-10-12 | 112 | 0 | 1/1 | p14 |
| 2026-10-11 | 112 | 0 | 1/1 | p10 |
| 2026-10-10 | 112 | 0 | 1/1 | p14 |
| 2026-10-09 | 112 | 0 | 1/1 | p14 |
| 2026-10-08 | 112 | 0 | 1/1 | p13 |
| 2026-10-07 | 112 | 0 | 1/1 | p16 |
| 2026-10-06 | 112 | 0 | 1/1 | p18 |
| 2026-10-05 | 112 | 0 | 1/1 | p18 |
Top water assets
- 69Indian Creekriver
- 69North Fork Tieton Riverriver
- 69North Fork Union Creekriver
- 69Indian Creekriver
- 68Clear Creek Damreservoir
- 67American River Near Nile, Wariver
- 67Tieton Damreservoir
- 67Copper Creekriver
- 67South Fork Little Naches Riverriver
- 67Little Naches Riverriver