Lower Rio Grande HUC8 13090002
A 5,502 km² sub-basin of the Rio Grande region in MX, TX. Drought coverage is from the US Drought Monitor (map of 2026-10-13); streamflow classes place each USGS gauge's latest reading against its own day-of-year record.
Health score
56
Moderate
Drought index
196
Moderate
Area in D2+
17.13%
0% exceptional (D4)
Gauges below normal
—
no gauges reporting
Median flow
—
of normal for the date
Water assets
468
0 springs · 456 wells
USGS gauges (0)
No active discharge gauges in this sub-basin.
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-19 | 196 | 17.13 | — | — |
| 2026-10-18 | 196 | 17.13 | — | — |
| 2026-10-17 | 196 | 17.13 | — | — |
| 2026-10-16 | 196 | 17.13 | — | — |
| 2026-10-15 | 266 | 66.05 | — | — |
| 2026-10-14 | 266 | 66.05 | — | — |
| 2026-10-13 | 266 | 66.05 | — | — |
| 2026-10-12 | 266 | 66.05 | — | — |
| 2026-10-11 | 266 | 66.05 | — | — |
| 2026-10-10 | 266 | 66.05 | — | — |
| 2026-10-09 | 266 | 66.05 | — | — |
| 2026-10-08 | 402 | 100 | — | — |
| 2026-10-07 | 402 | 100 | — | — |
| 2026-10-06 | 402 | 100 | — | — |
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