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 - 25 cfs (-1)
09/29/2020 08:55 PM ----- 25 cfs (-1)
Daily Median Flow 39 cfs
Gauge 7.76 feet (-0.01)
View NWS Forecast >>
N Fk Guadalupe Rv nr Hunt, TX - 14 cfs (+1)
09/29/2020 08:45 PM ----- 14 cfs (+1)
Daily Median Flow 20 cfs
Gauge 1.46 feet (+0.02)

View USGS Site Page >>
Guadalupe Rv at Kerrville, TX - 21 cfs (-1)
09/29/2020 08:45 PM ----- 21 cfs (-1)
Daily Median Flow 78 cfs
Gauge 1.50 feet (-0.01)
View NWS Forecast >>
Guadalupe Rv at Comfort, TX - 43 cfs (-6)
09/29/2020 08:45 PM ----- 43 cfs (-6)
Daily Median Flow 81 cfs
Gauge 3.37 feet (-0.05)
View NWS Forecast >>
Guadalupe Rv nr Spring Branch, TX - 36 cfs (-3)
09/29/2020 08:00 PM ----- 36 cfs (-3)
Daily Median Flow 122 cfs
Gauge 2.03 feet (-0.03)
View NWS Forecast >>
Canyon Lk nr New Braunfels, TX - 905.60 msl (-0.02)
09/29/2020 08:15 PM
905.60 msl (-0.02)
View NWS Site >>
Guadalupe Rv at Sattler, TX - 66 cfs (+1)
09/29/2020 08:00 PM ----- 66 cfs (+1)
Daily Median Flow 169 cfs
Gauge 4.23 feet (+0.01)
View NWS Forecast >>
Guadalupe Rv at Third Crossing nr Sattler, TX - Gauge 3.66 feet (+0.00)
09/29/2020 08:45 PM
Gauge 3.66 feet (+0.00)
View USGS Site Page >>
Guadalupe Rv abv Comal Rv at New Braunfels, TX - 84 cfs (-6)
09/29/2020 08:45 PM ----- 84 cfs (-6)
Daily Median Flow 225 cfs
View NWS Forecast >>
WFk Dry Comal Ck at Schuetz Dam, New Braunfels, TX - 799.30 msl (-0.01)
09/29/2020 08:30 PM
799.30 msl (-0.01)
Dry Comal Ck at Loop 337 nr New Braunfels, TX - 0.07 cfs (+0.00)
09/29/2020 08:00 PM ----- 0.07 cfs (+0.00)
Daily Median Flow 0 cfs
View NWS Site >>
Comal Rv at New Braunfels, TX - 270 cfs (+0)
09/29/2020 08:45 PM ----- 270 cfs (+0)
Daily Median Flow 286 cfs
Gauge 4.10 feet (+0.00)
View NWS Forecast >>
Guadalupe Rv at New Braunfels, TX - Gauge 9.56 feet (+0.02)
09/29/2020 08:00 PM
Gauge 9.56 feet (+0.02)
View NWS Forecast >>
Guadalupe Rv at Hwy 123-BR at Seguin, TX - Gauge -0.45 feet (+0.10)
09/29/2020 08:15 PM
Gauge -0.45 feet (+0.10)
View NWS Forecast >>
Geronimo Ck nr Seguin, TX - Gauge 3.97 feet (+0.01)
09/29/2020 08:00 PM
Gauge 3.97 feet (+0.01)
View USGS Site Page >>
Guadalupe Rv at FM 1117 nr Seguin, TX - 505 cfs (-39)
09/29/2020 08:15 PM ----- 505 cfs (-39)
Daily Median Flow 511 cfs
Gauge 12.12 feet (-0.09)
View USGS Site Page >>
Guadalupe Rv at CR 143 nr Gonzales, TX - Gauge 6.72 feet (-0.02)
09/29/2020 08:30 PM
Gauge 6.72 feet (-0.02)
View USGS Site Page >>
Guadalupe Rv at Gonzales, TX - 1710 cfs (-140)
09/29/2020 08:45 PM ----- 1710 cfs (-140)
Daily Median Flow 748 cfs
Gauge 13.53 feet (-0.20)
View NWS Forecast >>
Peach Ck at Hwy 90 nr Waelder, TX - 0.00 cfs (+0.00)
09/29/2020 08:30 PM ----- 0.00 cfs (+0.00)
Daily Median Flow 0 cfs
Gauge 2.97 feet (+0.00)
View NWS Forecast >>
Peach Ck bl Dilworth, TX - 3.89 cfs (-0.57)
09/29/2020 08:00 PM ----- 3.89 cfs (-0.57)
Daily Median Flow 3 cfs
Gauge 8.06 feet (-0.08)
View NWS Forecast >>
Guadalupe Rv at Hwy 183 nr Hochheim, TX - 535 cfs (+302)
09/29/2020 08:00 PM ----- 535 cfs (+302)
Gauge 6.69 feet (+0.85)
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 - 1.92 cfs (-0.13)
09/29/2020 08:00 PM ----- 1.92 cfs (-0.13)
Daily Median Flow 5 cfs
Gauge 2.37 feet (-0.01)
View NWS Forecast >>
Guadalupe Rv at Cuero, TX - 491 cfs (-37)
09/29/2020 08:30 PM ----- 491 cfs (-37)
Daily Median Flow 920 cfs
Gauge 7.85 feet (-0.10)
View NWS Forecast >>
Guadalupe Rv at Victoria, TX - 483 cfs (+69)
09/29/2020 08:15 PM ----- 483 cfs (+69)
Daily Median Flow 850 cfs
Gauge 5.65 feet (+0.25)
View NWS Forecast >>
Coleto Ck at Arnold Rd Crsg nr Schroeder, TX - 0.00 cfs (+0.00)
09/29/2020 08:45 PM ----- 0.00 cfs (+0.00)
Daily Median Flow 3 cfs
Gauge 2.87 feet (-0.01)
View NWS Forecast >>
Coleto Ck Res nr Victoria, TX - 93.31 msl (-0.02)
09/29/2020 08:00 PM
93.31 msl (-0.02)
View NWS Site >>
Coleto Ck nr Victoria, TX - 1.98 cfs (+0.00)
09/29/2020 08:30 PM ----- 1.98 cfs (+0.00)
Daily Median Flow 4 cfs
Gauge 3.87 feet (+0.00)
View NWS Forecast >>
Guadalupe Rv nr Bloomington, TX - 421 cfs (-64)
09/29/2020 08:00 PM ----- 421 cfs (-64)
Daily Median Flow 694 cfs
Gauge 8.89 feet (-0.46)
View NWS Forecast >>
Guadalupe Rv nr Tivoli, TX - 745 cfs (-132)
09/29/2020 08:30 PM ----- 745 cfs (-132)
Daily Median Flow 1200 cfs
Gauge 3.50 feet (-0.04)
View NWS Site >>

Blanco River Gauges

Blanco Rv at Crabapple Rd nr Blanco, TX - Gauge 0.32 feet (-0.01)
09/29/2020 08:45 PM
Gauge 0.32 feet (-0.01)
View NWS Forecast >>
Little Blanco Rv at FM 32 nr Fischer, TX - Gauge 2.78 feet (-0.04)
09/29/2020 08:45 PM
Gauge 2.78 feet (-0.04)
View USGS Site Page >>
Blanco Rv at Fischer Store Rd nr Fischer, TX - 21 cfs (+0)
09/29/2020 08:45 PM ----- 21 cfs (+0)
Daily Median Flow Not Available
Gauge 3.60 feet (+0.00)
View NWS Forecast >>
Blanco Rv at Wimberley, TX - 23 cfs (+0)
09/29/2020 08:45 PM ----- 23 cfs (+0)
Daily Median Flow 42 cfs
Gauge 3.72 feet (+0.00)
View NWS Forecast >>
Blanco Rv nr Kyle, TX - 0.00 cfs (+0.00)
09/29/2020 08:45 PM ----- 0.00 cfs (+0.00)
Daily Median Flow 26 cfs
Gauge 2.95 feet (+0.00)
View NWS Site >>
Blanco Rv at San Marcos, TX - 2.23 cfs (-0.16)
09/29/2020 08:40 PM ----- 2.23 cfs (-0.16)
Daily Median Flow Not Available
Gauge 7.54 feet (-0.02)

View NWS Forecast >>

San Marcos River Gauges

San Marcos Rv at San Marcos, TX - 135 cfs (+2)
09/29/2020 08:45 PM ----- 135 cfs (+2)
Daily Median Flow 181 cfs
Gauge 4.77 feet (+0.03)
View NWS Site >>
San Marcos Rv nr Martindale, TX - 150 cfs (+0)
09/29/2020 08:45 PM ----- 150 cfs (+0)
Daily Median Flow 253 cfs
Gauge 7.56 feet (+0.00)
View NWS Site >>
San Marcos Rv at Luling, TX - 165 cfs (-2)
09/29/2020 08:45 PM ----- 165 cfs (-2)
Daily Median Flow 254 cfs
Gauge 4.36 feet (-0.01)
View NWS Forecast >>
Plum Ck at Lockhart, TX - 3.32 cfs (-0.65)
09/29/2020 08:00 PM ----- 3.32 cfs (-0.65)
Daily Median Flow 0 cfs
Gauge 1.82 feet (-0.06)
Plum Ck nr Luling, TX - 14 cfs (-2)
09/29/2020 08:00 PM ----- 14 cfs (-2)
Daily Median Flow 8 cfs
Gauge 4.67 feet (-0.04)
View NWS Forecast >>
© 1998 Guadalupe-Blanco River Authority