Summary of Watershed Conditions in the Guadalupe River Basin Wednesday, January 28, 2026
This page is updated once a day with data obtained from USGS.
| Flow (cfs) | % of Daily Median | |
| A. Guadalupe River @ Comfort | 72 | 64% |
| B. Canyon Reservoir | ||
| Inflow | 96 | 61% |
| Release | 96 | 56% |
| Full Res. Elev. - msl (Conservation pool) | 909 | |
| Reservoir Elev. - msl | 888.05 | |
| Capacity (Conservation pool) | 61% | |
| C. Blanco River @ Wimberley | 6 | 11% |
| D. Comal Springs | 71 | 23% |
| E. San Marcos Springs | 81 | 51% |
| F. Guadalupe River @ Gonzales | 221 | 24% |
| G. Guadalupe River @ Victoria | 173 | 17% |
| H. San Antonio River @ Goliad | 335 | 83% |
| I. Guadalupe River @ Tivoli | 446 | 24% |
| Bay & Estuary Inflow | 325 | |
Watershed Charts
| Full Reservoir Elevation | Daily Elevation | |
|---|---|---|
| Elevation | 909 | 888.05 |
| Historical | Current | |
|---|---|---|
| Spring Branch (Inflow) | 157 | 96 |
| Sattler (Release) | 172 | 96 |
| Historical | Current | |
|---|---|---|
| Comal | 311 | 71 |
| San Marcos | 160 | 81 |
| Canyon Release | Comal Springs | Natural Baseflow | |
|---|---|---|---|
| Source Percentages | 41.0 | 30.3 | 28.7 |
| Canyon Release | Comal Springs | San Marcos Springs | Natural Baseflow | |
|---|---|---|---|---|
| Source Percentages | 38.7 | 28.6 | 32.7 | 0 |