Lower Snake-Tucannon HUC8 17060107
A 3,779 km² sub-basin of the Pacific Northwest region in ID, 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
67
Moderate
Drought index
254
Severe
Area in D2+
53.86%
0% exceptional (D4)
Gauges below normal
0%
of 1 reporting
Median flow
97%
p43 of record
Water assets
1,032
133 springs · 201 wells
USGS gauges (1)
- TUCANNON RIVER NEAR STARBUCK, WA1334450081 cfsp43 · normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-22 | 254 | 53.86 | 0/1 | p43 |
| 2026-10-21 | 254 | 53.86 | 0/1 | p45 |
| 2026-10-20 | 254 | 53.86 | 0/1 | p45 |
| 2026-10-19 | 254 | 53.86 | 0/1 | p45 |
| 2026-10-18 | 254 | 53.86 | 0/1 | p39 |
| 2026-10-17 | 254 | 53.86 | 0/1 | p46 |
| 2026-10-16 | 254 | 53.86 | 0/1 | p51 |
| 2026-10-15 | 254 | 53.86 | 0/1 | p53 |
| 2026-10-14 | 254 | 53.86 | 0/1 | p54 |
| 2026-10-13 | 254 | 53.86 | 0/1 | p46 |
| 2026-10-12 | 254 | 53.86 | 0/1 | p46 |
| 2026-10-11 | 254 | 53.86 | 0/1 | p36 |
| 2026-10-10 | 254 | 53.86 | 0/1 | p30 |
| 2026-10-09 | 254 | 53.86 | 0/1 | p25 |
Top water assets
- 76Ir — Ce S3-*21672Cspring
- 76Ir — Cl S3-094622Clspring
- 76Ir — Cp Cswc140652@2Pspring
- 73Ir — Cl S3-094620Clspring
- 73If Ir — Cp Cs3-048300Clspring
- 73Ir — Cp S3-Cv2-3P42spring
- 73Ir — Cl S3-117371Clspring
- 67Tucannon Riverriver
- 67Pataha Creekriver
- 67Steptoe Creekriver