Cibolo HUC8 12100304
A 2,212 km² sub-basin of the Texas-Gulf region in TX. 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
68
Moderate
Drought index
124
Moderate
Area in D2+
0%
0% exceptional (D4)
Gauges below normal
14%
of 7 reporting
Median flow
187%
p67 of record
Water assets
890
77 springs · 356 wells
USGS gauges (8)
- Cibolo Ck at Selma, TX081850000 cfsp10 · below normal
- Martinez Ck nr Saint Hedwig, TX081851008 cfsp27 · normal
- Cibolo Ck nr Boerne, TX081839005 cfsp54 · normal
- Cibolo Ck nr Falls City, TX0818600041 cfsp67 · normal
- Cibolo Ck at Sutherland Springs, TX0818550046 cfsp84 · above normal
- Cibolo Ck nr Saint Hedwig, TX0818506575 cfsp96 · much above normal
- Cibolo Ck at Specht Rd nr Bulverde, TX081839780 cfsp100 · much above normal
- Cibolo Ck at Smithson Valley Rd nr Bulverde, TX08184050no readingno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-09-07 | 124 | 0 | 1/7 | p67 |
Top water assets
- 66Martinez Creek Ws Scs Site 4 Damreservoir
- 66Upper Cibolo Creek Ws Scs Site 2 Damreservoir
- 66Martinez Creek Ws Scs Site 3 Damreservoir
- 66Martinez Creek Ws Scs Site 2 Damreservoir
- 66Martinez Creek Ws Scs Site 6A Damreservoir
- 66Upper Cibolo Creek Ws Scs Site 4 Damreservoir
- 66Martinez Creek Ws Scs Site 5 Damreservoir
- 66Upper Cibolo Creek Ws Scs Site 3 Damreservoir
- 66Upper Cibolo Creek Ws Scs Site 1 Damreservoir
- 66Martinez Creek Ws Scs Site 1 Damreservoir