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Vermilion HUC8 08080103

A 5,217 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
63
Moderate
Drought index
195
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
0%
of 2 reporting
Median flow
179%
p81 of record
Water assets
2,207
0 springs · 1,943 wells

USGS gauges (7)

Recent conditions

DateDSCID2+ %Gauges lowFlow pct
2026-09-0719500/2p81

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