Willapa Bay HUC8 17100106
A 3,282 km² sub-basin of the Pacific Northwest region in OR, WA. Drought coverage is from the US Drought Monitor (map of 2026-09-01); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
80
Healthy
Drought index
0
None
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 2 reporting
Median flow
113%
p56 of record
Water assets
850
62 springs · 747 wells
USGS gauges (2)
- NASELLE RIVER NEAR NASELLE, WA1201000043 cfsp53 · normal
- WILLAPA RIVER NEAR WILLAPA, WA1201350044 cfsp58 · normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 0 | 0 | 0/2 | p56 |
Top water assets
- 76Fp Hp Ir — Pe S2-29678spring
- 73Fp Hp Ir — Pe S2-28852spring
- 73Fp Ir — Ap S2-28380spring
- 73Ir — Ap G2-29100spring
- 73Fp Ir — Ap S2-28381spring
- 73Ir — Ap S2-28690spring
- 73Ir — Ap G2-28691spring
- 73Mu — Ap S2-29450spring
- 66Ir — Pe S2-29561spring
- 66Ir — Ap S2-29685spring