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 - 17 cfs (-3)
10/27/2020 03:25 PM ----- 17 cfs (-3)
Daily Median Flow 51 cfs
Gauge 7.75 feet (-0.04)
View NWS Forecast >>
N Fk Guadalupe Rv nr Hunt, TX - 13 cfs (+0)
10/27/2020 03:15 PM ----- 13 cfs (+0)
Daily Median Flow 22 cfs
Gauge 1.45 feet (+0.00)

View USGS Site Page >>
Guadalupe Rv at Kerrville, TX - 44 cfs (+1)
10/27/2020 02:45 PM ----- 44 cfs (+1)
Daily Median Flow 78 cfs
Gauge 1.59 feet (+0.02)
View NWS Forecast >>
Guadalupe Rv at Comfort, TX - 35 cfs (+4)
10/27/2020 02:45 PM ----- 35 cfs (+4)
Daily Median Flow 110 cfs
Gauge 3.33 feet (+0.04)
View NWS Forecast >>
Guadalupe Rv nr Spring Branch, TX - 30 cfs (-1)
10/27/2020 03:00 PM ----- 30 cfs (-1)
Daily Median Flow 146 cfs
Gauge 1.89 feet (-0.01)
View NWS Forecast >>
Canyon Lk nr New Braunfels, TX - 904.85 msl (-0.05)
10/27/2020 03:15 PM
904.85 msl (-0.05)
View NWS Site >>
Guadalupe Rv at Sattler, TX - 55 cfs (+0)
10/27/2020 03:00 PM ----- 55 cfs (+0)
Daily Median Flow 139 cfs
Gauge 4.14 feet (+0.00)
View NWS Forecast >>
Guadalupe Rv at Third Crossing nr Sattler, TX - Gauge 3.56 feet (-0.02)
10/27/2020 03:15 PM
Gauge 3.56 feet (-0.02)
View USGS Site Page >>
Guadalupe Rv abv Comal Rv at New Braunfels, TX - 71 cfs (+0)
10/27/2020 03:15 PM ----- 71 cfs (+0)
Daily Median Flow 233 cfs
View NWS Forecast >>
WFk Dry Comal Ck at Schuetz Dam, New Braunfels, TX - 799.30 msl (-0.01)
10/27/2020 02:30 PM
799.30 msl (-0.01)
Dry Comal Ck at Loop 337 nr New Braunfels, TX - 0.00 cfs (-0.02)
10/27/2020 03:00 PM ----- 0.00 cfs (-0.02)
Daily Median Flow 0 cfs
View NWS Site >>
Comal Rv at New Braunfels, TX - 273 cfs (-4)
10/27/2020 02:45 PM ----- 273 cfs (-4)
Daily Median Flow 294 cfs
Gauge 4.07 feet (-0.01)
View NWS Forecast >>
Guadalupe Rv at New Braunfels, TX - Gauge 9.52 feet (-0.02)
10/27/2020 03:00 PM
Gauge 9.52 feet (-0.02)
View NWS Forecast >>
Guadalupe Rv at Hwy 123-BR at Seguin, TX - Gauge -0.76 feet (+0.13)
10/27/2020 03:15 PM
Gauge -0.76 feet (+0.13)
View NWS Forecast >>
Geronimo Ck nr Seguin, TX - Gauge 3.99 feet (+0.00)
10/27/2020 03:00 PM
Gauge 3.99 feet (+0.00)
View USGS Site Page >>
Guadalupe Rv at FM 1117 nr Seguin, TX - 131 cfs (+0)
10/27/2020 03:15 PM ----- 131 cfs (+0)
Daily Median Flow 343 cfs
Gauge 11.05 feet (+0.00)
View USGS Site Page >>
Guadalupe Rv at CR 143 nr Gonzales, TX - Gauge 6.33 feet (-0.12)
10/27/2020 02:30 PM
Gauge 6.33 feet (-0.12)
View USGS Site Page >>
Guadalupe Rv at Gonzales, TX - 250 cfs (+8)
10/27/2020 02:45 PM ----- 250 cfs (+8)
Daily Median Flow 898 cfs
Gauge 11.10 feet (+0.02)
View NWS Forecast >>
Peach Ck at Hwy 90 nr Waelder, TX - 0.00 cfs (+0.00)
10/27/2020 02:30 PM ----- 0.00 cfs (+0.00)
Daily Median Flow 0 cfs
Gauge 2.97 feet (-0.01)
View NWS Forecast >>
Peach Ck bl Dilworth, TX - 0.28 cfs (-0.07)
10/27/2020 03:00 PM ----- 0.28 cfs (-0.07)
Daily Median Flow 3 cfs
Gauge 7.32 feet (-0.03)
View NWS Forecast >>
Guadalupe Rv at Hwy 183 nr Hochheim, TX - 525 cfs (+85)
10/27/2020 03:00 PM ----- 525 cfs (+85)
Gauge 6.50 feet (+0.24)
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 - 0.19 cfs (-0.05)
10/27/2020 03:00 PM ----- 0.19 cfs (-0.05)
Daily Median Flow 6 cfs
Gauge 2.22 feet (-0.01)
View NWS Forecast >>
Guadalupe Rv at Cuero, TX - 434 cfs (-34)
10/27/2020 02:30 PM ----- 434 cfs (-34)
Daily Median Flow 912 cfs
Gauge 7.70 feet (-0.10)
View NWS Forecast >>
Guadalupe Rv at Victoria, TX - 402 cfs (-13)
10/27/2020 03:15 PM ----- 402 cfs (-13)
Daily Median Flow 987 cfs
Gauge 5.41 feet (-0.05)
View NWS Forecast >>
Coleto Ck at Arnold Rd Crsg nr Schroeder, TX - 0.00 cfs (+0.00)
10/27/2020 02:45 PM ----- 0.00 cfs (+0.00)
Daily Median Flow 7 cfs
Gauge 2.64 feet (-0.01)
View NWS Forecast >>
Coleto Ck Res nr Victoria, TX - 93.10 msl (-0.02)
10/27/2020 03:00 PM
93.10 msl (-0.02)
View NWS Site >>
Coleto Ck nr Victoria, TX - 2.45 cfs (+0.00)
10/27/2020 02:30 PM ----- 2.45 cfs (+0.00)
Daily Median Flow 5 cfs
Gauge 3.88 feet (+0.00)
View NWS Forecast >>
Guadalupe Rv nr Bloomington, TX - 425 cfs (+21)
10/27/2020 03:00 PM ----- 425 cfs (+21)
Daily Median Flow 544 cfs
Gauge 8.60 feet (+0.16)
View NWS Forecast >>
Guadalupe Rv nr Tivoli, TX - 236 cfs (-211)
10/27/2020 02:30 PM ----- 236 cfs (-211)
Daily Median Flow 1250 cfs
Gauge 4.14 feet (+0.13)
View NWS Site >>

Blanco River Gauges

Blanco Rv at Crabapple Rd nr Blanco, TX - Gauge 0.53 feet (+0.00)
10/27/2020 03:15 PM
Gauge 0.53 feet (+0.00)
View NWS Forecast >>
Little Blanco Rv at FM 32 nr Fischer, TX - Gauge 2.75 feet (-0.01)
10/27/2020 03:15 PM
Gauge 2.75 feet (-0.01)
View USGS Site Page >>
Blanco Rv at Fischer Store Rd nr Fischer, TX - 17 cfs (0)
10/27/2020 03:15 PM ----- 17 cfs (0)
Daily Median Flow Not Available
Gauge 3.53 feet (-0.01)
View NWS Forecast >>
Blanco Rv at Wimberley, TX - 20 cfs (-1)
10/27/2020 03:15 PM ----- 20 cfs (-1)
Daily Median Flow 46 cfs
Gauge 3.67 feet (-0.01)
View NWS Forecast >>
Blanco Rv nr Kyle, TX - 0.00 cfs (+0.00)
10/27/2020 03:15 PM ----- 0.00 cfs (+0.00)
Daily Median Flow 40 cfs
Gauge 2.94 feet (-0.01)
View NWS Site >>
Blanco Rv at San Marcos, TX - 0.00 cfs (+0.00)
10/27/2020 02:40 PM ----- 0.00 cfs (+0.00)
Daily Median Flow Not Available
Gauge 6.73 feet (-0.02)

View NWS Forecast >>

San Marcos River Gauges

San Marcos Rv at San Marcos, TX - 137 cfs (+1)
10/27/2020 03:15 PM ----- 137 cfs (+1)
Daily Median Flow 177 cfs
Gauge 4.68 feet (+0.01)
View NWS Site >>
San Marcos Rv nr Martindale, TX - 168 cfs (-2)
10/27/2020 02:45 PM ----- 168 cfs (-2)
Daily Median Flow 216 cfs
Gauge 7.62 feet (-0.01)
View NWS Site >>
San Marcos Rv at Luling, TX - 144 cfs (-1)
10/27/2020 02:45 PM ----- 144 cfs (-1)
Daily Median Flow 223 cfs
Gauge 4.28 feet (-0.01)
View NWS Forecast >>
Plum Ck at Lockhart, TX - 5.85 cfs (+0.18)
10/27/2020 03:00 PM ----- 5.85 cfs (+0.18)
Daily Median Flow 0 cfs
Gauge 1.79 feet (+0.01)
Plum Ck nr Luling, TX - 7.39 cfs (-0.61)
10/27/2020 03:00 PM ----- 7.39 cfs (-0.61)
Daily Median Flow 10 cfs
Gauge 4.52 feet (-0.02)
View NWS Forecast >>
© 1998 Guadalupe-Blanco River Authority