South Fork Powder HUC8 10090203
A 3,151 km² sub-basin of the Missouri region in WY. 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
45
Stressed
Drought index
343
Extreme
Area in D2+
80.1%
0% exceptional (D4)
Gauges below normal
—
no gauges reporting
Median flow
—
of normal for the date
Water assets
961
12 springs · 94 wells
USGS gauges (0)
No active discharge gauges in this sub-basin.
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 343 | 80.1 | — | — |
Top water assets
- 69Cottonwood Creekriver
- 69Wallace Creekriver
- 69South Fork Powder Riverriver
- 69South Fork Powder Riverriver
- 69South Fork Powder Riverriver
- 69South Fork Powder Riverriver
- 69Willow Creekriver
- 69South Fork Powder Riverriver
- 69South Fork Powder Riverriver
- 69South Fork Powder Riverriver