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 - 38 cfs (+1)
01/26/2020 08:20 AM ----- 38 cfs (+1)
Daily Median Flow 47 cfs
Gauge 7.84 feet (+0.01)
View NWS Forecast >>
N Fk Guadalupe Rv nr Hunt, TX - 17 cfs (+2)
01/26/2020 08:15 AM ----- 17 cfs (+2)
Daily Median Flow 21 cfs
Gauge 2.04 feet (+0.02)

View USGS Site Page >>
Guadalupe Rv at Kerrville, TX - 64 cfs (+0)
01/26/2020 07:45 AM ----- 64 cfs (+0)
Daily Median Flow 87 cfs
Gauge 1.80 feet (+0.00)
View NWS Forecast >>
Guadalupe Rv at Comfort, TX - 75 cfs (-5)
01/26/2020 07:45 AM ----- 75 cfs (-5)
Daily Median Flow 123 cfs
Gauge 3.43 feet (-0.03)
View NWS Forecast >>
Guadalupe Rv nr Spring Branch, TX - 98 cfs (-5)
01/26/2020 08:00 AM ----- 98 cfs (-5)
Daily Median Flow 171 cfs
Gauge 2.53 feet (-0.03)
View NWS Forecast >>
Canyon Lk nr New Braunfels, TX - 906.00 msl (+0.00)
01/26/2020 08:15 AM
906.00 msl (+0.00)
View NWS Site >>
Guadalupe Rv at Sattler, TX - 87 cfs (+0)
01/26/2020 08:00 AM ----- 87 cfs (+0)
Daily Median Flow 202 cfs
Gauge 4.36 feet (+0.00)
View NWS Forecast >>
Guadalupe Rv at Third Crossing nr Sattler, TX - Gauge 3.78 feet (+0.00)
01/26/2020 08:15 AM
Gauge 3.78 feet (+0.00)
View USGS Site Page >>
Guadalupe Rv abv Comal Rv at New Braunfels, TX - 117 cfs (+3)
01/26/2020 08:15 AM ----- 117 cfs (+3)
Daily Median Flow 277 cfs
View NWS Forecast >>
WFk Dry Comal Ck at Schuetz Dam, New Braunfels, TX - 799.30 msl (+0.01)
01/26/2020 07:30 AM
799.30 msl (+0.01)
Dry Comal Ck at Loop 337 nr New Braunfels, TX - 0.06 cfs (-0.06)
01/26/2020 08:00 AM ----- 0.06 cfs (-0.06)
Daily Median Flow 2 cfs
View NWS Site >>
Comal Rv at New Braunfels, TX - 316 cfs (+4)
01/26/2020 07:45 AM ----- 316 cfs (+4)
Daily Median Flow 317 cfs
Gauge 4.23 feet (+0.01)
View NWS Forecast >>
Guadalupe Rv at New Braunfels, TX - Gauge 9.71 feet (+0.01)
01/26/2020 08:00 AM
Gauge 9.71 feet (+0.01)
View NWS Forecast >>
Guadalupe Rv at Hwy 123-BR at Seguin, TX - Gauge -0.66 feet (-0.19)
01/26/2020 08:15 AM
Gauge -0.66 feet (-0.19)
View NWS Forecast >>
Geronimo Ck nr Seguin, TX - Gauge 4.18 feet (+0.00)
01/26/2020 08:00 AM
Gauge 4.18 feet (+0.00)
View USGS Site Page >>
Guadalupe Rv at FM 1117 nr Seguin, TX - 472 cfs (-59)
01/26/2020 08:15 AM ----- 472 cfs (-59)
Daily Median Flow 683 cfs
Gauge 11.73 feet (-0.14)
View USGS Site Page >>
Guadalupe Rv at CR 143 nr Gonzales, TX - Gauge 7.43 feet (+0.89)
01/26/2020 07:30 AM
Gauge 7.43 feet (+0.89)
View USGS Site Page >>
Guadalupe Rv at Gonzales, TX - 735 cfs (+6)
01/26/2020 07:45 AM ----- 735 cfs (+6)
Daily Median Flow 1140 cfs
Gauge 12.18 feet (+0.01)
View NWS Forecast >>
Peach Ck at Hwy 90 nr Waelder, TX - 0.00 cfs (+0.00)
01/26/2020 07:30 AM ----- 0.00 cfs (+0.00)
Daily Median Flow 4 cfs
Gauge 2.96 feet (+0.01)
View NWS Forecast >>
Peach Ck bl Dilworth, TX - 1.08 cfs (+0.12)
01/26/2020 08:00 AM ----- 1.08 cfs (+0.12)
Daily Median Flow 10 cfs
Gauge 9.01 feet (+0.05)
View NWS Forecast >>
Guadalupe Rv at Hwy 183 nr Hochheim, TX - 667 cfs (-39)
01/26/2020 08:00 AM ----- 667 cfs (-39)
Gauge 6.99 feet (-0.11)
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 - 1.39 cfs (+0.11)
01/26/2020 08:00 AM ----- 1.39 cfs (+0.11)
Daily Median Flow 13 cfs
Gauge 2.31 feet (+0.01)
View NWS Forecast >>
Guadalupe Rv at Cuero, TX - 647 cfs (-104)
01/26/2020 07:30 AM ----- 647 cfs (-104)
Daily Median Flow 1240 cfs
Gauge 8.30 feet (-0.22)
View NWS Forecast >>
Guadalupe Rv at Victoria, TX - 824 cfs (+114)
01/26/2020 08:15 AM ----- 824 cfs (+114)
Daily Median Flow 1060 cfs
Gauge 6.65 feet (+0.29)
View NWS Forecast >>
Coleto Ck at Arnold Rd Crsg nr Schroeder, TX - 0.83 cfs (+0.08)
01/26/2020 07:45 AM ----- 0.83 cfs (+0.08)
Daily Median Flow 14 cfs
Gauge 4.14 feet (+0.01)
View NWS Forecast >>
Coleto Ck Res nr Victoria, TX - 94.39 msl (+0.02)
01/26/2020 08:00 AM
94.39 msl (+0.02)
View NWS Site >>
Coleto Ck nr Victoria, TX - 3.33 cfs (+0.00)
01/26/2020 07:30 AM ----- 3.33 cfs (+0.00)
Daily Median Flow 5 cfs
Gauge 3.89 feet (+0.00)
View NWS Forecast >>
Guadalupe Rv nr Bloomington, TX - 718 cfs (+36)
01/26/2020 08:00 AM ----- 718 cfs (+36)
Daily Median Flow 1030 cfs
Gauge 10.79 feet (+0.19)
View NWS Forecast >>
Guadalupe Rv nr Tivoli, TX - 1140 cfs (+30)
01/26/2020 07:30 AM ----- 1140 cfs (+30)
Daily Median Flow 1970 cfs
Gauge 3.50 feet (-0.07)
View NWS Site >>

Blanco River Gauges

Blanco Rv at Crabapple Rd nr Blanco, TX - Gauge 0.50 feet (+0.00)
01/26/2020 08:15 AM
Gauge 0.50 feet (+0.00)
View NWS Forecast >>
Little Blanco Rv at FM 32 nr Fischer, TX - Gauge 2.77 feet (+0.00)
01/26/2020 08:15 AM
Gauge 2.77 feet (+0.00)
View USGS Site Page >>
Blanco Rv at Fischer Store Rd nr Fischer, TX - 12 cfs (+0)
01/26/2020 08:15 AM ----- 12 cfs (+0)
Daily Median Flow Not Available
Gauge 3.68 feet (+0.00)
View NWS Forecast >>
Blanco Rv at Wimberley, TX - 23 cfs (+0)
01/26/2020 08:15 AM ----- 23 cfs (+0)
Daily Median Flow 69 cfs
Gauge 3.73 feet (+0.00)
View NWS Forecast >>
Blanco Rv nr Kyle, TX - 0.00 cfs (+0.00)
01/26/2020 08:15 AM ----- 0.00 cfs (+0.00)
Daily Median Flow 76 cfs
Gauge 2.96 feet (+0.00)
View NWS Site >>
Blanco Rv at San Marcos, TX - 1.33 cfs (+0.00)
01/26/2020 07:40 AM ----- 1.33 cfs (+0.00)
Daily Median Flow Not Available
Gauge 7.43 feet (+0.00)

View NWS Forecast >>

San Marcos River Gauges

San Marcos Rv at San Marcos, TX - 148 cfs (+0)
01/26/2020 07:45 AM ----- 148 cfs (+0)
Daily Median Flow 167 cfs
Gauge 4.35 feet (+0.00)
View NWS Site >>
San Marcos Rv nr Martindale, TX - 155 cfs (+0)
01/26/2020 07:45 AM ----- 155 cfs (+0)
Daily Median Flow 329 cfs
Gauge 7.53 feet (+0.00)
View NWS Site >>
San Marcos Rv at Luling, TX - 180 cfs (-2)
01/26/2020 07:45 AM ----- 180 cfs (-2)
Daily Median Flow 373 cfs
Gauge 4.50 feet (-0.01)
View NWS Forecast >>
Plum Ck at Lockhart, TX - 6.54 cfs (-1.71)
01/26/2020 08:00 AM ----- 6.54 cfs (-1.71)
Daily Median Flow 8 cfs
Gauge 2.68 feet (-0.09)
Plum Ck nr Luling, TX - 21 cfs (-9)
01/26/2020 08:00 AM ----- 21 cfs (-9)
Daily Median Flow 23 cfs
Gauge 4.87 feet (-0.11)
View NWS Forecast >>
© 1998 Guadalupe-Blanco River Authority