Methow HUC8 17020008
A 4,711 km² sub-basin of the Pacific Northwest region in 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
58
Moderate
Drought index
323
Extreme
Area in D2+
89.83%
0% exceptional (D4)
Gauges below normal
14%
of 7 reporting
Median flow
85%
p33 of record
Water assets
1,674
0 springs · 626 wells
USGS gauges (7)
- ANDREWS CREEK NEAR MAZAMA, WA124473904 cfsp11 · below normal
- METHOW RIVER ABOVE GOAT CREEK NEAR MAZAMA, WA1244738315 cfsp27 · normal
- METHOW RIVER NEAR PATEROS, WA12449950317 cfsp32 · normal
- METHOW RIVER AT WINTHROP, WA12448500209 cfsp33 · normal
- CHEWUCH RIVER AT WINTHROP, WA1244800057 cfsp39 · normal
- METHOW RIVER AT TWISP, WA12449500276 cfsp45 · normal
- TWISP RIVER NEAR TWISP, WA1244899856 cfsp70 · normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 323 | 89.83 | 1/7 | p33 |
Top water assets
- 69South Fork Boulder Creekriver
- 69Horseshoe Creekriver
- 69Twentymile Creekriver
- 69Basin Creekriver
- 69West Fork Buttermilk Creekriver
- 69Monument Creekriver
- 69Thirtymile Creekriver
- 69Thirtymile Creekriver
- 69South Fork Twentymile Creekriver
- 69North Fork Boulder Creekriver