Lower Owyhee HUC8 17050110
A 5,116 km² sub-basin of the Pacific Northwest region in OR. 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
65
Moderate
Drought index
265
Severe
Area in D2+
74.51%
0% exceptional (D4)
Gauges below normal
0%
of 1 reporting
Median flow
221%
p55 of record
Water assets
474
71 springs · 13 wells
USGS gauges (1)
- OWYHEE RIVER BELOW OWYHEE DAM, OR1318300031 cfsp55 · normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-20 | 265 | 74.51 | 0/1 | p55 |
| 2026-10-19 | 265 | 74.51 | 0/1 | p53 |
| 2026-10-18 | 265 | 74.51 | 0/1 | p53 |
| 2026-10-17 | 265 | 74.51 | 0/1 | p53 |
| 2026-10-16 | 265 | 74.51 | 0/1 | p52 |
| 2026-10-15 | 265 | 74.51 | 0/1 | p43 |
| 2026-10-14 | 265 | 74.51 | 0/1 | p34 |
| 2026-10-13 | 265 | 74.51 | 0/1 | p33 |
| 2026-10-12 | 265 | 74.51 | 0/1 | p32 |
| 2026-10-11 | 265 | 74.51 | 0/1 | p30 |
| 2026-10-10 | 265 | 74.51 | 0/1 | p36 |
| 2026-10-09 | 265 | 74.51 | 0/1 | p48 |
| 2026-10-08 | 265 | 74.51 | 0/1 | p49 |
| 2026-10-07 | 265 | 74.51 | 0/1 | p48 |
Top water assets
- 76Well 5 — Primary And Supplemental Irrigationwell
- 76Little Crowley Creek — Irrigation And Domesticspring
- 76Soldier Creek — Irrigationspring
- 76Sutton Creek — Primary And Supplemental Irrigationspring
- 76Crowley Creek — Irrigation And Domesticspring
- 76Dick Creek — Primary And Supplemental Irrigationspring
- 76Malheur Reservoir — Irrigation And Domesticspring
- 75Well 2 — Primary And Supplemental Irrigationwell
- 73Well 3 — Primary And Supplemental Irrigationwell
- 73Butte Creek — Irrigationspring