Middle Guadalupe HUC8 12100202
A 5,538 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
53
Moderate
Drought index
287
Severe
Area in D2+
86.83%
0% exceptional (D4)
Gauges below normal
50%
of 14 reporting
Median flow
70%
p27 of record
Water assets
1,661
62 springs · 586 wells
USGS gauges (16)
- Sandies Ck nr Westhoff, TX081750000 cfsp0 · much below normal
- Dry Comal Ck at Loop 337 nr New Braunfels, TX081687970 cfsp10 · below normal
- Sandy Fork Ck at Hwy 97 nr Waelder, TX081742000 cfsp10 · below normal
- Peach Ck at Hwy 90 nr Waelder, TX081745500 cfsp10 · below normal
- Peach Ck bl Dilworth, TX081746000 cfsp10 · below normal
- Comal Rv at New Braunfels, TX08169000153 cfsp13 · below normal
- Guadalupe Rv at Gonzales, TX08173900281 cfsp20 · below normal
- Guadalupe Rv abv Comal Rv at New Braunfels, TX08168500141 cfsp34 · normal
- Hueco Spgs nr New Braunfels, TX0816800021 cfsp39 · normal
- Guadalupe Rv at Sattler, TX08167800103 cfsp39 · normal
- Comal Rv (nc) nr Landa Lk, New Braunfels, TX0816893298 cfsp40 · normal
- Guadalupe Rv at CR 143 nr Gonzales, TX08169845225 cfsp41 · normal
- Guadalupe Rv at FM 1117 nr Seguin, TX08169792391 cfsp55 · normal
- Comal Rv (oc) nr Landa Lk, New Braunfels, TX0816891358 cfsp61 · normal
- Guadalupe Rv at Hwy 183 nr Hochheim, TX08174700281 cfsno long-term record
- Sandies Ck at FM 108 nr Smiley, TX081749700 cfsno long-term record
Recent conditions
| Date | DSCI | D2+ % | Gauges low | Flow pct |
|---|---|---|---|---|
| 2026-10-19 | 287 | 86.83 | 7/14 | p27 |
| 2026-10-18 | 287 | 86.83 | 7/14 | p26 |
| 2026-10-17 | 287 | 86.83 | 8/14 | p20 |
| 2026-10-16 | 287 | 86.83 | 7/14 | p21 |
| 2026-10-15 | 287 | 86.83 | 7/14 | p29 |
| 2026-10-14 | 287 | 86.83 | 7/14 | p25 |
| 2026-10-13 | 287 | 86.83 | 8/14 | p19 |
| 2026-10-12 | 287 | 86.83 | 7/14 | p29 |
| 2026-10-11 | 287 | 86.83 | 6/14 | p35 |
| 2026-10-10 | 287 | 86.83 | 6/14 | p37 |
| 2026-10-09 | 287 | 86.83 | 5/14 | p38 |
| 2026-10-08 | 302 | 86.83 | 5/14 | p33 |
| 2026-10-07 | 302 | 86.83 | 3/14 | p46 |
| 2026-10-06 | 302 | 86.83 | 3/14 | p48 |
Top water assets
- 79Edwards Aquifer — Balcones Fault Zoneaquifer
- 67Canyon Lake Damreservoir
- 66Lake Wood Damreservoir
- 66Comal River Ws Scs Site 3 Damreservoir
- 66Comal River Ws Scs Site 5 Damreservoir
- 66Vintage Oaks Unit 4 Detention Pond Damreservoir
- 66Double D Ranch Lake Damreservoir
- 66Comal River Ws Scs Site 1 Damreservoir
- 66Comal River Ws Scs Site 2 Damreservoir
- 66Dry Comal Ck Frs 11reservoir