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 - 16 cfs (+1)
08/14/2020 05:10 AM ----- 16 cfs (+1)
Daily Median Flow 33 cfs
Gauge 7.73 feet (+0.02)
View NWS Forecast >>
N Fk Guadalupe Rv nr Hunt, TX - 12 cfs (+0)
08/14/2020 05:00 AM ----- 12 cfs (+0)
Daily Median Flow 18 cfs
Gauge 1.40 feet (+0.00)

View USGS Site Page >>
Guadalupe Rv at Kerrville, TX - 13 cfs (+0)
08/14/2020 04:45 AM ----- 13 cfs (+0)
Daily Median Flow 48 cfs
Gauge 1.35 feet (+0.00)
View NWS Forecast >>
Guadalupe Rv at Comfort, TX - 29 cfs (+11)
08/14/2020 04:30 AM ----- 29 cfs (+11)
Daily Median Flow 55 cfs
Gauge 3.23 feet (+0.14)
View NWS Forecast >>
Guadalupe Rv nr Spring Branch, TX - 19 cfs (-2)
08/14/2020 05:00 AM ----- 19 cfs (-2)
Daily Median Flow 78 cfs
Gauge 1.76 feet (-0.03)
View NWS Forecast >>
Canyon Lk nr New Braunfels, TX - 906.40 msl (-0.03)
08/14/2020 04:15 AM
906.40 msl (-0.03)
View NWS Site >>
Guadalupe Rv at Sattler, TX - 62 cfs (-4)
08/14/2020 05:00 AM ----- 62 cfs (-4)
Daily Median Flow 148 cfs
Gauge 4.20 feet (-0.03)
View NWS Forecast >>
Guadalupe Rv at Third Crossing nr Sattler, TX - Gauge 3.66 feet (+0.01)
08/14/2020 05:00 AM
Gauge 3.66 feet (+0.01)
View USGS Site Page >>
Guadalupe Rv abv Comal Rv at New Braunfels, TX - 64 cfs (+0)
08/14/2020 05:00 AM ----- 64 cfs (+0)
Daily Median Flow 196 cfs
View NWS Forecast >>
WFk Dry Comal Ck at Schuetz Dam, New Braunfels, TX - 799.30 msl (+0.00)
08/14/2020 04:30 AM
799.30 msl (+0.00)
Dry Comal Ck at Loop 337 nr New Braunfels, TX - 0.00 cfs (+0.00)
08/14/2020 05:00 AM ----- 0.00 cfs (+0.00)
Daily Median Flow 0 cfs
View NWS Site >>
Comal Rv at New Braunfels, TX - 236 cfs (-3)
08/14/2020 04:45 AM ----- 236 cfs (-3)
Daily Median Flow 274 cfs
Gauge 3.98 feet (-0.01)
View NWS Forecast >>
Guadalupe Rv at New Braunfels, TX - Gauge 9.54 feet (+0.00)
08/14/2020 05:00 AM
Gauge 9.54 feet (+0.00)
View NWS Forecast >>
Guadalupe Rv at Hwy 123-BR at Seguin, TX - Gauge -0.53 feet (+0.46)
08/14/2020 04:15 AM
Gauge -0.53 feet (+0.46)
View NWS Forecast >>
Geronimo Ck nr Seguin, TX - Gauge 4.10 feet (+0.08)
08/14/2020 05:00 AM
Gauge 4.10 feet (+0.08)
View USGS Site Page >>
Guadalupe Rv at FM 1117 nr Seguin, TX - 110 cfs (-3)
08/14/2020 04:15 AM ----- 110 cfs (-3)
Daily Median Flow 430 cfs
Gauge 10.83 feet (-0.01)
View USGS Site Page >>
Guadalupe Rv at CR 143 nr Gonzales, TX - Gauge 6.28 feet (+0.02)
08/14/2020 04:30 AM
Gauge 6.28 feet (+0.02)
View USGS Site Page >>
Guadalupe Rv at Gonzales, TX - 566 cfs (+29)
08/14/2020 04:45 AM ----- 566 cfs (+29)
Daily Median Flow 645 cfs
Gauge 11.82 feet (+0.05)
View NWS Forecast >>
Peach Ck at Hwy 90 nr Waelder, TX - 0.00 cfs (+0.00)
08/14/2020 04:30 AM ----- 0.00 cfs (+0.00)
Daily Median Flow 0 cfs
Gauge 2.97 feet (+0.00)
View NWS Forecast >>
Peach Ck bl Dilworth, TX - 0.01 cfs (+0.00)
08/14/2020 05:00 AM ----- 0.01 cfs (+0.00)
Daily Median Flow 1 cfs
Gauge 7.16 feet (-0.04)
View NWS Forecast >>
Guadalupe Rv at Hwy 183 nr Hochheim, TX - 341 cfs (-74)
08/14/2020 05:00 AM ----- 341 cfs (-74)
Gauge 6.08 feet (-0.21)
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 - 4.21 cfs (-0.17)
08/14/2020 05:00 AM ----- 4.21 cfs (-0.17)
Daily Median Flow 2 cfs
Gauge 2.53 feet (-0.01)
View NWS Forecast >>
Guadalupe Rv at Cuero, TX - 360 cfs (+45)
08/14/2020 04:30 AM ----- 360 cfs (+45)
Daily Median Flow 734 cfs
Gauge 7.46 feet (+0.13)
View NWS Forecast >>
Guadalupe Rv at Victoria, TX - 316 cfs (-160)
08/14/2020 05:15 AM ----- 316 cfs (-160)
Daily Median Flow 698 cfs
Gauge 5.03 feet (-0.61)
View NWS Forecast >>
Coleto Ck at Arnold Rd Crsg nr Schroeder, TX - 0.00 cfs (+0.00)
08/14/2020 04:45 AM ----- 0.00 cfs (+0.00)
Daily Median Flow 3 cfs
Gauge 3.21 feet (-0.02)
View NWS Forecast >>
Coleto Ck Res nr Victoria, TX - 93.35 msl (-0.03)
08/14/2020 05:00 AM
93.35 msl (-0.03)
View NWS Site >>
Coleto Ck nr Victoria, TX - 2.45 cfs (+0.00)
08/14/2020 04:30 AM ----- 2.45 cfs (+0.00)
Daily Median Flow 3 cfs
Gauge 3.85 feet (+0.00)
View NWS Forecast >>
Guadalupe Rv nr Bloomington, TX - 438 cfs (+76)
08/14/2020 05:00 AM ----- 438 cfs (+76)
Daily Median Flow 546 cfs
Gauge 8.91 feet (+0.59)
View NWS Forecast >>
Guadalupe Rv nr Tivoli, TX - 422 cfs (-13)
08/14/2020 04:30 AM ----- 422 cfs (-13)
Daily Median Flow 845 cfs
Gauge 1.09 feet (-0.41)
View NWS Site >>

Blanco River Gauges

Blanco Rv at Crabapple Rd nr Blanco, TX - Gauge 0.33 feet (+0.00)
08/14/2020 05:00 AM
Gauge 0.33 feet (+0.00)
View NWS Forecast >>
Little Blanco Rv at FM 32 nr Fischer, TX - Gauge 2.75 feet (-0.01)
08/14/2020 05:00 AM
Gauge 2.75 feet (-0.01)
View USGS Site Page >>
Blanco Rv at Fischer Store Rd nr Fischer, TX - 37 cfs (+0)
08/14/2020 05:00 AM ----- 37 cfs (+0)
Daily Median Flow Not Available
Gauge 3.59 feet (+0.00)
View NWS Forecast >>
Blanco Rv at Wimberley, TX - 23 cfs (+0)
08/14/2020 05:00 AM ----- 23 cfs (+0)
Daily Median Flow 36 cfs
Gauge 3.69 feet (+0.00)
View NWS Forecast >>
Blanco Rv nr Kyle, TX - 0.00 cfs (+0.00)
08/14/2020 05:00 AM ----- 0.00 cfs (+0.00)
Daily Median Flow 21 cfs
Gauge 2.95 feet (+0.00)
View NWS Site >>
Blanco Rv at San Marcos, TX - 0.04 cfs (-0.14)
08/14/2020 04:40 AM ----- 0.04 cfs (-0.14)
Daily Median Flow Not Available
Gauge 7.02 feet (-0.04)

View NWS Forecast >>

San Marcos River Gauges

San Marcos Rv at San Marcos, TX - 142 cfs (-2)
08/14/2020 04:45 AM ----- 142 cfs (-2)
Daily Median Flow 167 cfs
Gauge 4.69 feet (-0.02)
View NWS Site >>
San Marcos Rv nr Martindale, TX - 138 cfs (+8)
08/14/2020 04:45 AM ----- 138 cfs (+8)
Daily Median Flow 195 cfs
Gauge 7.61 feet (+0.02)
View NWS Site >>
San Marcos Rv at Luling, TX - 129 cfs (+0)
08/14/2020 04:45 AM ----- 129 cfs (+0)
Daily Median Flow 189 cfs
Gauge 4.31 feet (+0.00)
View NWS Forecast >>
Plum Ck at Lockhart, TX - 6.89 cfs (-0.37)
08/14/2020 05:00 AM ----- 6.89 cfs (-0.37)
Daily Median Flow 0 cfs
Gauge 1.81 feet (-0.02)
Plum Ck nr Luling, TX - 5.96 cfs (-0.24)
08/14/2020 05:00 AM ----- 5.96 cfs (-0.24)
Daily Median Flow 4 cfs
Gauge 4.52 feet (-0.01)
View NWS Forecast >>
© 1998 Guadalupe-Blanco River Authority