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 - 19 cfs (-1)
11/25/2020 04:40 AM ----- 19 cfs (-1)
Daily Median Flow 55 cfs
Gauge 7.79 feet (-0.01)
View NWS Forecast >>
N Fk Guadalupe Rv nr Hunt, TX - 47 cfs (+9)
11/25/2020 04:30 AM ----- 47 cfs (+9)
Daily Median Flow 25 cfs
Gauge 1.80 feet (+0.07)

View USGS Site Page >>
Guadalupe Rv at Kerrville, TX - 46 cfs (+1)
11/25/2020 04:45 AM ----- 46 cfs (+1)
Daily Median Flow 74 cfs
Gauge 1.62 feet (+0.02)
View NWS Forecast >>
Guadalupe Rv at Comfort, TX - 41 cfs (+2)
11/25/2020 03:45 AM ----- 41 cfs (+2)
Daily Median Flow 124 cfs
Gauge 3.40 feet (+0.02)
View NWS Forecast >>
Guadalupe Rv nr Spring Branch, TX - 39 cfs (+2)
11/25/2020 04:00 AM ----- 39 cfs (+2)
Daily Median Flow 141 cfs
Gauge 2.00 feet (+0.02)
View NWS Forecast >>
Canyon Lk nr New Braunfels, TX - 904.21 msl (-0.01)
11/25/2020 04:15 AM
904.21 msl (-0.01)
View NWS Site >>
Guadalupe Rv at Sattler, TX - 57 cfs (+1)
11/25/2020 04:00 AM ----- 57 cfs (+1)
Daily Median Flow 150 cfs
Gauge 4.15 feet (+0.01)
View NWS Forecast >>
Guadalupe Rv at Third Crossing nr Sattler, TX - Gauge 3.58 feet (+0.00)
11/25/2020 04:30 AM
Gauge 3.58 feet (+0.00)
View USGS Site Page >>
Guadalupe Rv abv Comal Rv at New Braunfels, TX - 89 cfs (+0)
11/25/2020 04:30 AM ----- 89 cfs (+0)
Daily Median Flow 201 cfs
View NWS Forecast >>
WFk Dry Comal Ck at Schuetz Dam, New Braunfels, TX - 799.30 msl (+0.00)
11/25/2020 04:30 AM
799.30 msl (+0.00)
Dry Comal Ck at Loop 337 nr New Braunfels, TX - 0.00 cfs (+0.00)
11/25/2020 04:00 AM ----- 0.00 cfs (+0.00)
Daily Median Flow 1 cfs
View NWS Site >>
Comal Rv at New Braunfels, TX - 232 cfs (-33)
11/25/2020 03:45 AM ----- 232 cfs (-33)
Daily Median Flow 304 cfs
Gauge 4.02 feet (-0.03)
View NWS Forecast >>
Guadalupe Rv at New Braunfels, TX - Gauge 9.55 feet (+0.00)
11/25/2020 04:00 AM
Gauge 9.55 feet (+0.00)
View NWS Forecast >>
Guadalupe Rv at Hwy 123-BR at Seguin, TX - Gauge -0.85 feet (-0.41)
11/25/2020 04:15 AM
Gauge -0.85 feet (-0.41)
View NWS Forecast >>
Geronimo Ck nr Seguin, TX - Gauge 4.02 feet (+0.00)
11/25/2020 04:00 AM
Gauge 4.02 feet (+0.00)
View USGS Site Page >>
Guadalupe Rv at FM 1117 nr Seguin, TX - 437 cfs (-62)
11/25/2020 04:15 AM ----- 437 cfs (-62)
Daily Median Flow 515 cfs
Gauge 11.93 feet (-0.15)
View USGS Site Page >>
Guadalupe Rv at CR 143 nr Gonzales, TX - Gauge 6.59 feet (-0.57)
11/25/2020 04:30 AM
Gauge 6.59 feet (-0.57)
View USGS Site Page >>
Guadalupe Rv at Gonzales, TX - 705 cfs (+91)
11/25/2020 03:45 AM ----- 705 cfs (+91)
Daily Median Flow 890 cfs
Gauge 12.03 feet (+0.17)
View NWS Forecast >>
Peach Ck at Hwy 90 nr Waelder, TX - 0.00 cfs (+0.00)
11/25/2020 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 - 1.81 cfs (+0.24)
11/25/2020 04:00 AM ----- 1.81 cfs (+0.24)
Daily Median Flow 4 cfs
Gauge 8.81 feet (+0.06)
View NWS Forecast >>
Guadalupe Rv at Hwy 183 nr Hochheim, TX - 414 cfs (-87)
11/25/2020 04:00 AM ----- 414 cfs (-87)
Gauge 6.28 feet (-0.18)
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 - 0.21 cfs (+0.00)
11/25/2020 04:00 AM ----- 0.21 cfs (+0.00)
Daily Median Flow 8 cfs
Gauge 2.23 feet (+0.00)
View NWS Forecast >>
Guadalupe Rv at Cuero, TX - 360 cfs (-155)
11/25/2020 04:30 AM ----- 360 cfs (-155)
Daily Median Flow 811 cfs
Gauge 7.49 feet (-0.44)
View NWS Forecast >>
Guadalupe Rv at Victoria, TX - 451 cfs (+149)
11/25/2020 04:45 AM ----- 451 cfs (+149)
Daily Median Flow 865 cfs
Gauge 5.59 feet (+0.58)
View NWS Forecast >>
Coleto Ck at Arnold Rd Crsg nr Schroeder, TX - 0.00 cfs (+0.00)
11/25/2020 03:45 AM ----- 0.00 cfs (+0.00)
Daily Median Flow 9 cfs
Gauge 2.51 feet (+0.01)
View NWS Forecast >>
Coleto Ck Res nr Victoria, TX - 93.12 msl (+0.01)
11/25/2020 04:00 AM
93.12 msl (+0.01)
View NWS Site >>
Coleto Ck nr Victoria, TX - 2.45 cfs (+0.00)
11/25/2020 04:30 AM ----- 2.45 cfs (+0.00)
Daily Median Flow 4 cfs
Gauge 3.88 feet (+0.00)
View NWS Forecast >>
Guadalupe Rv nr Bloomington, TX - 394 cfs (+9)
11/25/2020 04:00 AM ----- 394 cfs (+9)
Daily Median Flow 740 cfs
Gauge 8.36 feet (+0.07)
View NWS Forecast >>
Guadalupe Rv nr Tivoli, TX - 473 cfs (+50)
11/25/2020 04:30 AM ----- 473 cfs (+50)
Daily Median Flow 1220 cfs
Gauge 4.11 feet (+0.05)
View NWS Site >>

Blanco River Gauges

Blanco Rv at Crabapple Rd nr Blanco, TX - Gauge 0.53 feet (-0.01)
11/25/2020 04:30 AM
Gauge 0.53 feet (-0.01)
View NWS Forecast >>
Little Blanco Rv at FM 32 nr Fischer, TX - Gauge 2.87 feet (+0.00)
11/25/2020 04:30 AM
Gauge 2.87 feet (+0.00)
View USGS Site Page >>
Blanco Rv at Fischer Store Rd nr Fischer, TX - 18 cfs (+0)
11/25/2020 04:30 AM ----- 18 cfs (+0)
Daily Median Flow Not Available
Gauge 3.55 feet (+0.00)
View NWS Forecast >>
Blanco Rv at Wimberley, TX - 19 cfs (+0)
11/25/2020 04:30 AM ----- 19 cfs (+0)
Daily Median Flow 47 cfs
Gauge 3.65 feet (+0.00)
View NWS Forecast >>
Blanco Rv nr Kyle, TX - 0.00 cfs (+0.00)
11/25/2020 04:30 AM ----- 0.00 cfs (+0.00)
Daily Median Flow 42 cfs
Gauge 2.95 feet (+0.00)
View NWS Site >>
Blanco Rv at San Marcos, TX - 0.00 cfs (+0.00)
11/25/2020 04:40 AM ----- 0.00 cfs (+0.00)
Daily Median Flow Not Available
Gauge 6.29 feet (-0.06)

View NWS Forecast >>

San Marcos River Gauges

San Marcos Rv at San Marcos, TX - 123 cfs (-1)
11/25/2020 03:45 AM ----- 123 cfs (-1)
Daily Median Flow 175 cfs
Gauge 4.56 feet (-0.02)
View NWS Site >>
San Marcos Rv nr Martindale, TX - 150 cfs (+4)
11/25/2020 03:45 AM ----- 150 cfs (+4)
Daily Median Flow 204 cfs
Gauge 7.54 feet (+0.01)
View NWS Site >>
San Marcos Rv at Luling, TX - 139 cfs (+0)
11/25/2020 04:45 AM ----- 139 cfs (+0)
Daily Median Flow 194 cfs
Gauge 4.24 feet (+0.00)
View NWS Forecast >>
Plum Ck at Lockhart, TX - 6.65 cfs (+0.38)
11/25/2020 04:00 AM ----- 6.65 cfs (+0.38)
Daily Median Flow 2 cfs
Gauge 2.01 feet (+0.02)
Plum Ck nr Luling, TX - 8.70 cfs (+0.34)
11/25/2020 04:00 AM ----- 8.70 cfs (+0.34)
Daily Median Flow 12 cfs
Gauge 4.61 feet (+0.01)
View NWS Forecast >>
© 1998 Guadalupe-Blanco River Authority