Lower Mississippi-New Orleans HUC8 08090100
A 2,221 km² sub-basin of the Lower Mississippi region in LA. 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
72
Moderate
Drought index
188
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 1 reporting
Median flow
101%
p51 of record
Water assets
112
0 springs · 16 wells
USGS gauges (1)
- Mississippi River at Belle Chasse, LA07374525312,000 cfsp51 · normal
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 188 | 0 | 0/1 | p51 |
Top water assets
- 65Mississippi Riverriver
- 65Mississippi Riverriver
- 65Dennis Passriver
- 65Mississippi Riverriver
- 65Mississippi Riverriver
- 65Mississippi Riverriver
- 65Mississippi River At Belle Chasse, Lariver
- 65Mississippi Riverriver
- 65Mississippi Riverriver
- 65Mississippi Riverriver