Middle Fork Powder HUC8 10090201
A 2,573 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
29
Critical
Drought index
399
Extreme
Area in D2+
100%
0% exceptional (D4)
Gauges below normal
100%
of 1 reporting
Median flow
58%
p9 of record
Water assets
889
5 springs · 85 wells
USGS gauges (1)
- MIDDLE FORK POWDER RIVER NEAR BARNUM, WY063092004 cfsp9 · much below normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 399 | 100 | 1/1 | p9 |
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