West San Antonio Bay HUC8 12100404
A 379 km² sub-basin of the Texas-Gulf region in 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
43
Stressed
Drought index
300
Extreme
Area in D2+
100%
0% exceptional (D4)
Gauges below normal
—
no gauges reporting
Median flow
—
of normal for the date
Water assets
38
0 springs · 18 wells
USGS gauges (0)
No active discharge gauges in this sub-basin.
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-21 | 300 | 100 | — | — |
| 2026-10-20 | 300 | 100 | — | — |
| 2026-10-19 | 300 | 100 | — | — |
| 2026-10-18 | 300 | 100 | — | — |
| 2026-10-17 | 300 | 100 | — | — |
| 2026-10-16 | 300 | 100 | — | — |
| 2026-10-15 | 300 | 100 | — | — |
| 2026-10-14 | 300 | 100 | — | — |
| 2026-10-13 | 300 | 100 | — | — |
| 2026-10-12 | 300 | 100 | — | — |
| 2026-10-11 | 300 | 100 | — | — |
| 2026-10-10 | 300 | 100 | — | — |
| 2026-10-09 | 300 | 100 | — | — |
| 2026-10-08 | 300 | 100 | — | — |
Top water assets
- 62Townsend Bayouriver
- 62Townsend Bayouriver
- 62Townsend Bayouriver
- 62Townsend Bayouriver
- 62Townsend Bayouriver
- 62Townsend Bayouriver
- 62Townsend Bayouriver
- 51Texas Water Right 11913098101well
- 44Wh-80-33-204well
- 44Wh-80-33-202well