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 - 28 cfs (+0)
09/19/2020 03:40 AM ----- 28 cfs (+0)
Daily Median Flow 44 cfs
Gauge 7.80 feet (+0.00)
View NWS Forecast >>
N Fk Guadalupe Rv nr Hunt, TX - 14 cfs (-1)
09/19/2020 03:30 AM ----- 14 cfs (-1)
Daily Median Flow 20 cfs
Gauge 1.46 feet (-0.02)

View USGS Site Page >>
Guadalupe Rv at Kerrville, TX - 32 cfs (+1)
09/19/2020 03:45 AM ----- 32 cfs (+1)
Daily Median Flow 78 cfs
Gauge 1.62 feet (+0.01)
View NWS Forecast >>
Guadalupe Rv at Comfort, TX - 46 cfs (-8)
09/19/2020 02:45 AM ----- 46 cfs (-8)
Daily Median Flow 91 cfs
Gauge 3.39 feet (-0.06)
View NWS Forecast >>
Guadalupe Rv nr Spring Branch, TX - 43 cfs (-3)
09/19/2020 03:00 AM ----- 43 cfs (-3)
Daily Median Flow 117 cfs
Gauge 2.11 feet (-0.03)
View NWS Forecast >>
Canyon Lk nr New Braunfels, TX - 905.90 msl (-0.02)
09/19/2020 03:15 AM
905.90 msl (-0.02)
View NWS Site >>
Guadalupe Rv at Sattler, TX - 66 cfs (+0)
09/19/2020 03:00 AM ----- 66 cfs (+0)
Daily Median Flow 205 cfs
Gauge 4.23 feet (+0.00)
View NWS Forecast >>
Guadalupe Rv at Third Crossing nr Sattler, TX - Gauge 3.67 feet (-0.03)
09/19/2020 03:30 AM
Gauge 3.67 feet (-0.03)
View USGS Site Page >>
Guadalupe Rv abv Comal Rv at New Braunfels, TX - 92 cfs (-15)
09/19/2020 03:30 AM ----- 92 cfs (-15)
Daily Median Flow 240 cfs
View NWS Forecast >>
WFk Dry Comal Ck at Schuetz Dam, New Braunfels, TX - 799.30 msl (+0.00)
09/19/2020 03:30 AM
799.30 msl (+0.00)
Dry Comal Ck at Loop 337 nr New Braunfels, TX - 0.10 cfs (-0.01)
09/19/2020 03:00 AM ----- 0.10 cfs (-0.01)
Daily Median Flow 0 cfs
View NWS Site >>
Comal Rv at New Braunfels, TX - 281 cfs (+11)
09/19/2020 02:45 AM ----- 281 cfs (+11)
Daily Median Flow 282 cfs
Gauge 4.13 feet (+0.03)
View NWS Forecast >>
Guadalupe Rv at New Braunfels, TX - Gauge 9.56 feet (-0.03)
09/19/2020 03:00 AM
Gauge 9.56 feet (-0.03)
View NWS Forecast >>
Guadalupe Rv at Hwy 123-BR at Seguin, TX - Gauge -0.82 feet (+0.00)
09/19/2020 03:15 AM
Gauge -0.82 feet (+0.00)
View NWS Forecast >>
Geronimo Ck nr Seguin, TX - Gauge 3.96 feet (-0.04)
09/19/2020 03:00 AM
Gauge 3.96 feet (-0.04)
View USGS Site Page >>
Guadalupe Rv at FM 1117 nr Seguin, TX - 291 cfs (-152)
09/19/2020 03:15 AM ----- 291 cfs (-152)
Daily Median Flow 456 cfs
Gauge 11.57 feet (-0.40)
View USGS Site Page >>
Guadalupe Rv at CR 143 nr Gonzales, TX - Gauge 6.60 feet (+0.06)
09/19/2020 03:30 AM
Gauge 6.60 feet (+0.06)
View USGS Site Page >>
Guadalupe Rv at Gonzales, TX - 644 cfs (-32)
09/19/2020 02:45 AM ----- 644 cfs (-32)
Daily Median Flow 708 cfs
Gauge 11.89 feet (-0.06)
View NWS Forecast >>
Peach Ck at Hwy 90 nr Waelder, TX - 0.00 cfs (+0.00)
09/19/2020 03:30 AM ----- 0.00 cfs (+0.00)
Daily Median Flow 0 cfs
Gauge 2.97 feet (-0.01)
View NWS Forecast >>
Peach Ck bl Dilworth, TX - 3.96 cfs (-0.07)
09/19/2020 03:00 AM ----- 3.96 cfs (-0.07)
Daily Median Flow 4 cfs
Gauge 8.07 feet (-0.01)
View NWS Forecast >>
Guadalupe Rv at Hwy 183 nr Hochheim, TX - 549 cfs (-28)
09/19/2020 03:00 AM ----- 549 cfs (-28)
Gauge 6.73 feet (-0.08)
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 - 2.45 cfs (-1.03)
09/19/2020 03:00 AM ----- 2.45 cfs (-1.03)
Daily Median Flow 5 cfs
Gauge 2.41 feet (-0.07)
View NWS Forecast >>
Guadalupe Rv at Cuero, TX - 649 cfs (+0)
09/19/2020 03:30 AM ----- 649 cfs (+0)
Daily Median Flow 1000 cfs
Gauge 8.25 feet (+0.00)
View NWS Forecast >>
Guadalupe Rv at Victoria, TX - 607 cfs (-45)
09/19/2020 03:15 AM ----- 607 cfs (-45)
Daily Median Flow 810 cfs
Gauge 6.06 feet (-0.14)
View NWS Forecast >>
Coleto Ck at Arnold Rd Crsg nr Schroeder, TX - 0.00 cfs (+0.00)
09/19/2020 02:45 AM ----- 0.00 cfs (+0.00)
Daily Median Flow 5 cfs
Gauge 2.90 feet (-0.03)
View NWS Forecast >>
Coleto Ck Res nr Victoria, TX - 93.20 msl (-0.02)
09/19/2020 03:00 AM
93.20 msl (-0.02)
View NWS Site >>
Coleto Ck nr Victoria, TX - 2.35 cfs (-0.42)
09/19/2020 03:30 AM ----- 2.35 cfs (-0.42)
Daily Median Flow 4 cfs
Gauge 3.91 feet (-0.04)
View NWS Forecast >>
Guadalupe Rv nr Bloomington, TX - 563 cfs (-44)
09/19/2020 03:00 AM ----- 563 cfs (-44)
Daily Median Flow 779 cfs
Gauge 9.85 feet (-0.27)
View NWS Forecast >>
Guadalupe Rv nr Tivoli, TX - 1360 cfs (-360)
09/19/2020 03:30 AM ----- 1360 cfs (-360)
Daily Median Flow 1420 cfs
Gauge 4.17 feet (-0.64)
View NWS Site >>

Blanco River Gauges

Blanco Rv at Crabapple Rd nr Blanco, TX - Gauge 0.33 feet (+0.00)
09/19/2020 03:30 AM
Gauge 0.33 feet (+0.00)
View NWS Forecast >>
Little Blanco Rv at FM 32 nr Fischer, TX - Gauge 2.82 feet (-0.04)
09/19/2020 03:30 AM
Gauge 2.82 feet (-0.04)
View USGS Site Page >>
Blanco Rv at Fischer Store Rd nr Fischer, TX - 22 cfs (-1)
09/19/2020 03:30 AM ----- 22 cfs (-1)
Daily Median Flow Not Available
Gauge 3.63 feet (-0.02)
View NWS Forecast >>
Blanco Rv at Wimberley, TX - 26 cfs (-2)
09/19/2020 03:30 AM ----- 26 cfs (-2)
Daily Median Flow 41 cfs
Gauge 3.77 feet (-0.02)
View NWS Forecast >>
Blanco Rv nr Kyle, TX - 0.27 cfs (-0.05)
09/19/2020 03:30 AM ----- 0.27 cfs (-0.05)
Daily Median Flow 26 cfs
Gauge 3.55 feet (-0.02)
View NWS Site >>
Blanco Rv at San Marcos, TX - 3.07 cfs (-0.62)
09/19/2020 03:40 AM ----- 3.07 cfs (-0.62)
Daily Median Flow Not Available
Gauge 7.63 feet (-0.06)

View NWS Forecast >>

San Marcos River Gauges

San Marcos Rv at San Marcos, TX - 137 cfs (+2)
09/19/2020 02:45 AM ----- 137 cfs (+2)
Daily Median Flow 185 cfs
Gauge 4.80 feet (+0.03)
View NWS Site >>
San Marcos Rv nr Martindale, TX - 161 cfs (+0)
09/19/2020 02:45 AM ----- 161 cfs (+0)
Daily Median Flow 194 cfs
Gauge 7.60 feet (+0.00)
View NWS Site >>
San Marcos Rv at Luling, TX - 176 cfs (+2)
09/19/2020 03:45 AM ----- 176 cfs (+2)
Daily Median Flow 222 cfs
Gauge 4.42 feet (+0.01)
View NWS Forecast >>
Plum Ck at Lockhart, TX - 19 cfs (-12)
09/19/2020 03:00 AM ----- 19 cfs (-12)
Daily Median Flow 0 cfs
Gauge 2.51 feet (-0.28)
Plum Ck nr Luling, TX - 44 cfs (-16)
09/19/2020 03:00 AM ----- 44 cfs (-16)
Daily Median Flow 9 cfs
Gauge 5.05 feet (-0.16)
View NWS Forecast >>
© 1998 Guadalupe-Blanco River Authority