Streamflow Data Map - Full-Screen View >>  List View >>

Each oval-shaped label represents a USGS gauge and shows the most current flow reading in cubic feet per second. When flow information is not available, a rectangular-shaped label shows the most current gauge height reading in feet.

100Stream flow - cfs

10.01Gauge stage - feet

The information on the streamflow map is updated every 15 minutes with data obtained from the U.S. Geological Survey (USGS), though not all gauges are updated simultaneously.
Click on a label to get more USGS information along with the National Weather Service forecast.
Click, hold and drag to reposition the map.
Zoom in to show more gauges, zoom out to hide gauges
(+/-0.00) - indicates change in 24 hours.

List View

  • Click on the name of a river to expand the list. Then click on a gauge name to see the data.

Guadalupe River Gauges

Guadalupe Rv at Hunt, TX - 31 cfs (-2)
05/25/2020 06:55 AM ----- 31 cfs (-2)
Daily Median Flow 46 cfs
Gauge 7.76 feet (-0.02)
View NWS Forecast >>
N Fk Guadalupe Rv nr Hunt, TX - 19 cfs (+4)
05/25/2020 06:45 AM ----- 19 cfs (+4)
Daily Median Flow 24 cfs
Gauge 1.53 feet (+0.05)

View USGS Site Page >>
Guadalupe Rv at Kerrville, TX - 103 cfs (+69)
05/25/2020 06:45 AM ----- 103 cfs (+69)
Daily Median Flow 86 cfs
Gauge 1.83 feet (+0.19)
View NWS Forecast >>
Guadalupe Rv at Comfort, TX - 101 cfs (+36)
05/25/2020 06:45 AM ----- 101 cfs (+36)
Daily Median Flow 132 cfs
Gauge 3.54 feet (+0.20)
View NWS Forecast >>
Guadalupe Rv nr Spring Branch, TX - 170 cfs (+96)
05/25/2020 06:00 AM ----- 170 cfs (+96)
Daily Median Flow 275 cfs
Gauge 2.85 feet (+0.48)
View NWS Forecast >>
Canyon Lk nr New Braunfels, TX - 907.19 msl (+0.21)
05/25/2020 06:15 AM
907.19 msl (+0.21)
View NWS Site >>
Guadalupe Rv at Sattler, TX - 97 cfs (+8)
05/25/2020 06:00 AM ----- 97 cfs (+8)
Daily Median Flow 307 cfs
Gauge 4.43 feet (+0.05)
View NWS Forecast >>
Guadalupe Rv at Third Crossing nr Sattler, TX - Gauge 4.28 feet (+0.41)
05/25/2020 06:45 AM
Gauge 4.28 feet (+0.41)
View USGS Site Page >>
Guadalupe Rv abv Comal Rv at New Braunfels, TX - 329 cfs (+147)
05/25/2020 06:45 AM ----- 329 cfs (+147)
Daily Median Flow 462 cfs
View NWS Forecast >>
WFk Dry Comal Ck at Schuetz Dam, New Braunfels, TX - 799.30 msl (+0.00)
05/25/2020 06:30 AM
799.30 msl (+0.00)
Dry Comal Ck at Loop 337 nr New Braunfels, TX - 137 cfs (+137)
05/25/2020 06:00 AM ----- 137 cfs (+137)
Daily Median Flow 0 cfs
View NWS Site >>
Comal Rv at New Braunfels, TX - 429 cfs (+163)
05/25/2020 06:45 AM ----- 429 cfs (+163)
Daily Median Flow 317 cfs
Gauge 4.53 feet (+0.40)
View NWS Forecast >>
Guadalupe Rv at New Braunfels, TX - Gauge 10.02 feet (+0.25)
05/25/2020 06:00 AM
Gauge 10.02 feet (+0.25)
View NWS Forecast >>
Guadalupe Rv at Hwy 123-BR at Seguin, TX - Gauge 0.83 feet (+1.40)
05/25/2020 06:15 AM
Gauge 0.83 feet (+1.40)
View NWS Forecast >>
Geronimo Ck nr Seguin, TX - Gauge 10.62 feet (+6.61)
05/25/2020 06:00 AM
Gauge 10.62 feet (+6.61)
View USGS Site Page >>
Guadalupe Rv at FM 1117 nr Seguin, TX - 3100 cfs (+2292)
05/25/2020 06:15 AM ----- 3100 cfs (+2292)
Daily Median Flow 601 cfs
Gauge 15.99 feet (+3.61)
View USGS Site Page >>
Guadalupe Rv at CR 143 nr Gonzales, TX - Gauge 7.50 feet (+0.25)
05/25/2020 06:30 AM
Gauge 7.50 feet (+0.25)
View USGS Site Page >>
Guadalupe Rv at Gonzales, TX - 909 cfs (+6)
05/25/2020 06:45 AM ----- 909 cfs (+6)
Daily Median Flow 948 cfs
Gauge 12.45 feet (+0.01)
View NWS Forecast >>
Peach Ck at Hwy 90 nr Waelder, TX - 0.06 cfs (+0.06)
05/25/2020 06:30 AM ----- 0.06 cfs (+0.06)
Daily Median Flow 0 cfs
Gauge 3.47 feet (+0.09)
View NWS Forecast >>
Peach Ck bl Dilworth, TX - 3.77 cfs (+0.57)
05/25/2020 06:00 AM ----- 3.77 cfs (+0.57)
Daily Median Flow 9 cfs
Gauge 9.11 feet (+0.09)
View NWS Forecast >>
Guadalupe Rv at Hwy 183 nr Hochheim, TX - 831 cfs (-21)
05/25/2020 06:00 AM ----- 831 cfs (-21)
Gauge 7.66 feet (-0.06)
View NWS Site >>
Sandies Ck at FM 108 nr Smiley, TX - Gauge -999999.00 feet (-1000000.26)
04/23/2019 09:00 AM
Gauge -999999.00 feet (-1000000.26)
View NWS Site >>
Sandies Ck nr Westhoff, TX - 4.73 cfs (+1.79)
05/25/2020 06:00 AM ----- 4.73 cfs (+1.79)
Daily Median Flow 9 cfs
Gauge 2.49 feet (+0.11)
View NWS Forecast >>
Guadalupe Rv at Cuero, TX - 1040 cfs (+69)
05/25/2020 06:30 AM ----- 1040 cfs (+69)
Daily Median Flow 1380 cfs
Gauge 9.10 feet (+0.15)
View NWS Forecast >>
Guadalupe Rv at Victoria, TX - 998 cfs (+67)
05/25/2020 06:15 AM ----- 998 cfs (+67)
Daily Median Flow 1380 cfs
Gauge 7.35 feet (+0.15)
View NWS Forecast >>
Coleto Ck at Arnold Rd Crsg nr Schroeder, TX - 11 cfs (+3)
05/25/2020 06:45 AM ----- 11 cfs (+3)
Daily Median Flow 12 cfs
Gauge 4.62 feet (+0.10)
View NWS Forecast >>
Coleto Ck Res nr Victoria, TX - 95.06 msl (+0.08)
05/25/2020 06:00 AM
95.06 msl (+0.08)
View NWS Site >>
Coleto Ck nr Victoria, TX - 8.08 cfs (+3.60)
05/25/2020 06:30 AM ----- 8.08 cfs (+3.60)
Daily Median Flow 5 cfs
Gauge 4.13 feet (+0.15)
View NWS Forecast >>
Guadalupe Rv nr Bloomington, TX - 1070 cfs (-110)
05/25/2020 06:00 AM ----- 1070 cfs (-110)
Daily Median Flow 967 cfs
Gauge 12.29 feet (-0.42)
View NWS Forecast >>
Guadalupe Rv nr Tivoli, TX - 1620 cfs (-230)
05/25/2020 06:30 AM ----- 1620 cfs (-230)
Daily Median Flow 1750 cfs
Gauge 4.11 feet (-0.31)
View NWS Site >>

Blanco River Gauges

Blanco Rv at Crabapple Rd nr Blanco, TX - Gauge 1.10 feet (+0.42)
05/25/2020 06:45 AM
Gauge 1.10 feet (+0.42)
View NWS Forecast >>
Little Blanco Rv at FM 32 nr Fischer, TX - Gauge 6.22 feet (+1.36)
05/25/2020 06:45 AM
Gauge 6.22 feet (+1.36)
View USGS Site Page >>
Blanco Rv at Fischer Store Rd nr Fischer, TX - 2980 cfs (+2951)
05/25/2020 06:45 AM ----- 2980 cfs (+2951)
Daily Median Flow Not Available
Gauge 9.25 feet (+5.38)
View NWS Forecast >>
Blanco Rv at Wimberley, TX - 4070 cfs (+4021)
05/25/2020 06:45 AM ----- 4070 cfs (+4021)
Daily Median Flow 93 cfs
Gauge 8.53 feet (+4.58)
View NWS Forecast >>
Blanco Rv nr Kyle, TX - 1500 cfs (+1477)
05/25/2020 06:45 AM ----- 1500 cfs (+1477)
Daily Median Flow 96 cfs
Gauge 9.04 feet (+4.31)
View NWS Site >>
Blanco Rv at San Marcos, TX - 194 cfs (+183)
05/25/2020 06:40 AM ----- 194 cfs (+183)
Daily Median Flow Not Available
Gauge 9.01 feet (+0.69)

View NWS Forecast >>

San Marcos River Gauges

San Marcos Rv at San Marcos, TX - 188 cfs (+14)
05/25/2020 06:45 AM ----- 188 cfs (+14)
Daily Median Flow 182 cfs
Gauge 4.94 feet (+0.14)
View NWS Site >>
San Marcos Rv nr Martindale, TX - 976 cfs (+771)
05/25/2020 06:45 AM ----- 976 cfs (+771)
Daily Median Flow 261 cfs
Gauge 9.82 feet (+2.10)
View NWS Site >>
San Marcos Rv at Luling, TX - 379 cfs (+141)
05/25/2020 06:45 AM ----- 379 cfs (+141)
Daily Median Flow 252 cfs
Gauge 5.41 feet (+0.61)
View NWS Forecast >>
Plum Ck at Lockhart, TX - 40 cfs (-4)
05/25/2020 06:00 AM ----- 40 cfs (-4)
Daily Median Flow 5 cfs
Gauge 2.95 feet (-0.12)
Plum Ck nr Luling, TX - 133 cfs (+57)
05/25/2020 06:00 AM ----- 133 cfs (+57)
Daily Median Flow 24 cfs
Gauge 5.83 feet (+0.40)
View NWS Forecast >>
© 1998 Guadalupe-Blanco River Authority