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 - 38 cfs (-1)
03/31/2020 07:40 PM ----- 38 cfs (-1)
Daily Median Flow 45 cfs
Gauge 7.83 feet (-0.01)
View NWS Forecast >>
N Fk Guadalupe Rv nr Hunt, TX - 21 cfs (+6)
03/31/2020 07:30 PM ----- 21 cfs (+6)
Daily Median Flow 21 cfs
Gauge 1.82 feet (+0.07)

View USGS Site Page >>
Guadalupe Rv at Kerrville, TX - 50 cfs (-4)
03/31/2020 06:45 PM ----- 50 cfs (-4)
Daily Median Flow 93 cfs
Gauge 1.79 feet (-0.01)
View NWS Forecast >>
Guadalupe Rv at Comfort, TX - 111 cfs (+6)
03/31/2020 06:45 PM ----- 111 cfs (+6)
Daily Median Flow 123 cfs
Gauge 3.49 feet (+0.03)
View NWS Forecast >>
Guadalupe Rv nr Spring Branch, TX - 111 cfs (-6)
03/31/2020 04:00 PM ----- 111 cfs (-6)
Daily Median Flow 201 cfs
Gauge 2.56 feet (-0.03)
View NWS Forecast >>
Canyon Lk nr New Braunfels, TX - 906.17 msl (+0.02)
03/31/2020 07:15 PM
906.17 msl (+0.02)
View NWS Site >>
Guadalupe Rv at Sattler, TX - 96 cfs (+2)
03/31/2020 07:00 PM ----- 96 cfs (+2)
Daily Median Flow 241 cfs
Gauge 4.42 feet (+0.01)
View NWS Forecast >>
Guadalupe Rv at Third Crossing nr Sattler, TX - Gauge 3.85 feet (-0.02)
03/31/2020 07:30 PM
Gauge 3.85 feet (-0.02)
View USGS Site Page >>
Guadalupe Rv abv Comal Rv at New Braunfels, TX - 120 cfs (-4)
03/31/2020 07:30 PM ----- 120 cfs (-4)
Daily Median Flow 325 cfs
View NWS Forecast >>
WFk Dry Comal Ck at Schuetz Dam, New Braunfels, TX - 799.31 msl (+0.01)
03/31/2020 07:30 PM
799.31 msl (+0.01)
Dry Comal Ck at Loop 337 nr New Braunfels, TX - 0.43 cfs (+0.02)
03/31/2020 07:00 PM ----- 0.43 cfs (+0.02)
Daily Median Flow 1 cfs
View NWS Site >>
Comal Rv at New Braunfels, TX - 266 cfs (-45)
03/31/2020 06:45 PM ----- 266 cfs (-45)
Daily Median Flow 318 cfs
Gauge 4.20 feet (-0.01)
View NWS Forecast >>
Guadalupe Rv at New Braunfels, TX - Gauge 9.70 feet (+0.01)
03/31/2020 07:00 PM
Gauge 9.70 feet (+0.01)
View NWS Forecast >>
Guadalupe Rv at Hwy 123-BR at Seguin, TX - Gauge -0.56 feet (-0.16)
03/31/2020 07:15 PM
Gauge -0.56 feet (-0.16)
View NWS Forecast >>
Geronimo Ck nr Seguin, TX - Gauge 4.07 feet (-0.02)
03/31/2020 07:00 PM
Gauge 4.07 feet (-0.02)
View USGS Site Page >>
Guadalupe Rv at FM 1117 nr Seguin, TX - 480 cfs (-13)
03/31/2020 07:15 PM ----- 480 cfs (-13)
Daily Median Flow 528 cfs
Gauge 11.71 feet (-0.03)
View USGS Site Page >>
Guadalupe Rv at CR 143 nr Gonzales, TX - Gauge 7.37 feet (-0.06)
03/31/2020 07:30 PM
Gauge 7.37 feet (-0.06)
View USGS Site Page >>
Guadalupe Rv at Gonzales, TX - 669 cfs (+11)
03/31/2020 06:45 PM ----- 669 cfs (+11)
Daily Median Flow 1130 cfs
Gauge 11.91 feet (+0.02)
View NWS Forecast >>
Peach Ck at Hwy 90 nr Waelder, TX - 0.00 cfs (+0.00)
03/31/2020 07:30 PM ----- 0.00 cfs (+0.00)
Daily Median Flow 24 cfs
Gauge 3.24 feet (-0.14)
View NWS Forecast >>
Peach Ck bl Dilworth, TX - 0.62 cfs (-0.06)
03/31/2020 07:00 PM ----- 0.62 cfs (-0.06)
Daily Median Flow 10 cfs
Gauge 9.01 feet (-0.03)
View NWS Forecast >>
Guadalupe Rv at Hwy 183 nr Hochheim, TX - 611 cfs (+11)
03/31/2020 07:00 PM ----- 611 cfs (+11)
Gauge 6.95 feet (+0.03)
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 - 1.61 cfs (-0.37)
03/31/2020 07:00 PM ----- 1.61 cfs (-0.37)
Daily Median Flow 11 cfs
Gauge 2.30 feet (-0.03)
View NWS Forecast >>
Guadalupe Rv at Cuero, TX - 647 cfs (-13)
03/31/2020 07:30 PM ----- 647 cfs (-13)
Daily Median Flow 1230 cfs
Gauge 8.36 feet (-0.03)
View NWS Forecast >>
Guadalupe Rv at Victoria, TX - 666 cfs (+7)
03/31/2020 07:15 PM ----- 666 cfs (+7)
Daily Median Flow 1230 cfs
Gauge 6.25 feet (+0.02)
View NWS Forecast >>
Coleto Ck at Arnold Rd Crsg nr Schroeder, TX - 11 cfs (-1)
03/31/2020 06:45 PM ----- 11 cfs (-1)
Daily Median Flow 14 cfs
Gauge 4.61 feet (-0.04)
View NWS Forecast >>
Coleto Ck Res nr Victoria, TX - 95.03 msl (+0.00)
03/31/2020 07:00 PM
95.03 msl (+0.00)
View NWS Site >>
Coleto Ck nr Victoria, TX - 5.30 cfs (+0.41)
03/31/2020 07:30 PM ----- 5.30 cfs (+0.41)
Daily Median Flow 5 cfs
Gauge 3.99 feet (+0.02)
View NWS Forecast >>
Guadalupe Rv nr Bloomington, TX - 584 cfs (-6)
03/31/2020 07:00 PM ----- 584 cfs (-6)
Daily Median Flow 1310 cfs
Gauge 10.15 feet (-0.04)
View NWS Forecast >>
Guadalupe Rv nr Tivoli, TX - 978 cfs (-52)
03/31/2020 07:30 PM ----- 978 cfs (-52)
Daily Median Flow 1910 cfs
Gauge 3.59 feet (-0.15)
View NWS Site >>

Blanco River Gauges

Blanco Rv at Crabapple Rd nr Blanco, TX - Gauge 0.58 feet (-0.01)
03/31/2020 07:30 PM
Gauge 0.58 feet (-0.01)
View NWS Forecast >>
Little Blanco Rv at FM 32 nr Fischer, TX - Gauge 2.78 feet (+0.01)
03/31/2020 07:30 PM
Gauge 2.78 feet (+0.01)
View USGS Site Page >>
Blanco Rv at Fischer Store Rd nr Fischer, TX - 22 cfs (+0)
03/31/2020 07:30 PM ----- 22 cfs (+0)
Daily Median Flow Not Available
Gauge 3.66 feet (+0.00)
View NWS Forecast >>
Blanco Rv at Wimberley, TX - 21 cfs (-1)
03/31/2020 07:30 PM ----- 21 cfs (-1)
Daily Median Flow 81 cfs
Gauge 3.71 feet (-0.01)
View NWS Forecast >>
Blanco Rv nr Kyle, TX - 0.00 cfs (+0.00)
03/31/2020 07:30 PM ----- 0.00 cfs (+0.00)
Daily Median Flow 78 cfs
Gauge 2.97 feet (+0.00)
View NWS Site >>
Blanco Rv at San Marcos, TX - 0.53 cfs (-0.14)
03/31/2020 06:40 PM ----- 0.53 cfs (-0.14)
Daily Median Flow Not Available
Gauge 7.54 feet (-0.04)

View NWS Forecast >>

San Marcos River Gauges

San Marcos Rv at San Marcos, TX - 148 cfs (-6)
03/31/2020 06:45 PM ----- 148 cfs (-6)
Daily Median Flow 193 cfs
Gauge 4.26 feet (-0.02)
View NWS Site >>
San Marcos Rv nr Martindale, TX - 138 cfs (-7)
03/31/2020 06:45 PM ----- 138 cfs (-7)
Daily Median Flow 301 cfs
Gauge 7.51 feet (-0.02)
View NWS Site >>
San Marcos Rv at Luling, TX - 160 cfs (+0)
03/31/2020 06:45 PM ----- 160 cfs (+0)
Daily Median Flow 250 cfs
Gauge 4.40 feet (+0.00)
View NWS Forecast >>
Plum Ck at Lockhart, TX - 7.07 cfs (+0.70)
03/31/2020 07:00 PM ----- 7.07 cfs (+0.70)
Daily Median Flow 5 cfs
Gauge 2.40 feet (+0.04)
Plum Ck nr Luling, TX - 16 cfs (-1)
03/31/2020 07:00 PM ----- 16 cfs (-1)
Daily Median Flow 19 cfs
Gauge 4.80 feet (-0.01)
View NWS Forecast >>
© 1998 Guadalupe-Blanco River Authority