Lower Malheur HUC8 17050117
A 2,457 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
67
Moderate
Drought index
233
Severe
Area in D2+
55.16%
0% exceptional (D4)
Gauges below normal
0%
of 1 reporting
Median flow
97%
p49 of record
Water assets
428
34 springs · 38 wells
USGS gauges (1)
- MALHEUR RIVER BELOW NEVADA DAM NEAR VALE OR1323330071 cfsp49 · normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-18 | 233 | 55.16 | 0/1 | p49 |
| 2026-10-17 | 233 | 55.16 | 0/1 | p43 |
| 2026-10-16 | 233 | 55.16 | 0/1 | p45 |
| 2026-10-15 | 233 | 55.16 | 0/1 | p54 |
| 2026-10-14 | 233 | 55.16 | 0/1 | p46 |
| 2026-10-13 | 233 | 55.16 | 0/1 | p45 |
| 2026-10-12 | 233 | 55.16 | 0/1 | p27 |
| 2026-10-11 | 233 | 55.16 | 0/1 | p28 |
| 2026-10-10 | 233 | 55.16 | 0/1 | p34 |
| 2026-10-09 | 233 | 55.16 | 0/1 | p32 |
| 2026-10-08 | 233 | 55.16 | 0/1 | p34 |
| 2026-10-07 | 233 | 55.16 | 0/1 | p36 |
| 2026-10-06 | 233 | 55.16 | 0/1 | p35 |
| 2026-10-05 | 233 | 55.16 | 0/1 | p35 |
Top water assets
- 76Malheur River — Irrigation And Domesticspring
- 73Well 2 — Supplemental Irrigationwell
- 73Corbett Creek — Irrigationspring
- 73Pole Creek — Irrigationspring
- 73Well 1 — Supplemental Irrigationwell
- 67Malheur Riverriver
- 67Malheur River Below Nevada Dam Near Vale Orriver
- 67Malheur Riverriver
- 67Malheur Riverriver
- 67Cottonwood Creekriver