Fort Peck Reservoir HUC8 10040104
A 13,623 km² sub-basin of the Missouri region in MT. 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
70
Moderate
Drought index
127
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 2 reporting
Median flow
92%
p70 of record
Water assets
2,458
14 springs · 372 wells
USGS gauges (2)
- Missouri River near Landusky MT061152005,200 cfsp41 · normal
- Nelson Creek near Van Norman MT061312000 cfsp100 · much above normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 127 | 0 | 0/2 | p70 |
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