Summary of Watershed Conditions in the Guadalupe River Basin Wednesday, June 18, 2025
This page is updated once a day with data obtained from USGS.
| Flow (cfs) | % of Daily Median | |
| A. Guadalupe River @ Comfort | 101 | 100% |
| B. Canyon Reservoir | ||
| Inflow | 88 | 57% |
| Release | 95 | 42% |
| Full Res. Elev. - msl (Conservation pool) | 909 | |
| Reservoir Elev. - msl | 878.29 | |
| Capacity (Conservation pool) | 47% | |
| C. Blanco River @ Wimberley | 27 | 42% |
| D. Comal Springs | 160 | 54% |
| E. San Marcos Springs | 95 | 52% |
| F. Guadalupe River @ Gonzales | 902 | 128% |
| G. Guadalupe River @ Victoria | 1160 | 101% |
| H. San Antonio River @ Goliad | 2020 | 598% |
| I. Guadalupe River @ Tivoli | 3710 | 344% |
| Bay & Estuary Inflow | 3270 | |
Watershed Charts
| Full Reservoir Elevation | Daily Elevation | |
|---|---|---|
| Elevation | 909 | 878.29 |
| Historical | Current | |
|---|---|---|
| Spring Branch (Inflow) | 155 | 88 |
| Sattler (Release) | 224 | 95 |
| Historical | Current | |
|---|---|---|
| Comal | 295 | 160 |
| San Marcos | 182 | 95 |
| Canyon Release | Comal Springs | Natural Baseflow | |
|---|---|---|---|
| Source Percentages | 26.4 | 44.4 | 29.2 |
| Canyon Release | Comal Springs | San Marcos Springs | Natural Baseflow | |
|---|---|---|---|---|
| Source Percentages | 8.2 | 13.8 | 8.2 | 69.8 |