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 - 34 cfs (-2)
07/04/2020 05:55 AM ----- 34 cfs (-2)
Daily Median Flow 32 cfs
Gauge 7.79 feet (-0.02)
View NWS Forecast >>
N Fk Guadalupe Rv nr Hunt, TX - 13 cfs (-4)
07/04/2020 05:45 AM ----- 13 cfs (-4)
Daily Median Flow 21 cfs
Gauge 1.45 feet (-0.05)

View USGS Site Page >>
Guadalupe Rv at Kerrville, TX - 48 cfs (-3)
07/04/2020 05:45 AM ----- 48 cfs (-3)
Daily Median Flow 62 cfs
Gauge 1.70 feet (-0.01)
View NWS Forecast >>
Guadalupe Rv at Comfort, TX - 85 cfs (-4)
07/04/2020 05:45 AM ----- 85 cfs (-4)
Daily Median Flow 81 cfs
Gauge 3.46 feet (-0.02)
View NWS Forecast >>
Guadalupe Rv nr Spring Branch, TX - 62 cfs (+0)
07/04/2020 05:00 AM ----- 62 cfs (+0)
Daily Median Flow 137 cfs
Gauge 2.28 feet (+0.00)
View NWS Forecast >>
Canyon Lk nr New Braunfels, TX - 907.70 msl (-0.02)
07/04/2020 05:15 AM
907.70 msl (-0.02)
View NWS Site >>
Guadalupe Rv at Sattler, TX - 72 cfs (-6)
07/04/2020 05:00 AM ----- 72 cfs (-6)
Daily Median Flow 310 cfs
Gauge 4.25 feet (-0.04)
View NWS Forecast >>
Guadalupe Rv at Third Crossing nr Sattler, TX - Gauge 3.66 feet (-0.03)
07/04/2020 05:45 AM
Gauge 3.66 feet (-0.03)
View USGS Site Page >>
Guadalupe Rv abv Comal Rv at New Braunfels, TX - 81 cfs (+0)
07/04/2020 05:45 AM ----- 81 cfs (+0)
Daily Median Flow 379 cfs
View NWS Forecast >>
WFk Dry Comal Ck at Schuetz Dam, New Braunfels, TX - 799.30 msl (+0.00)
07/04/2020 05:30 AM
799.30 msl (+0.00)
Dry Comal Ck at Loop 337 nr New Braunfels, TX - 0.11 cfs (+0.00)
07/04/2020 05:00 AM ----- 0.11 cfs (+0.00)
Daily Median Flow 0 cfs
View NWS Site >>
Comal Rv at New Braunfels, TX - 266 cfs (+3)
07/04/2020 05:45 AM ----- 266 cfs (+3)
Daily Median Flow 310 cfs
Gauge 4.10 feet (+0.01)
View NWS Forecast >>
Guadalupe Rv at New Braunfels, TX - Gauge 9.65 feet (-0.01)
07/04/2020 05:00 AM
Gauge 9.65 feet (-0.01)
View NWS Forecast >>
Guadalupe Rv at Hwy 123-BR at Seguin, TX - Gauge -0.82 feet (+0.00)
07/04/2020 05:15 AM
Gauge -0.82 feet (+0.00)
View NWS Forecast >>
Geronimo Ck nr Seguin, TX - Gauge 3.97 feet (+0.01)
07/04/2020 05:00 AM
Gauge 3.97 feet (+0.01)
View USGS Site Page >>
Guadalupe Rv at FM 1117 nr Seguin, TX - 151 cfs (-27)
07/04/2020 05:15 AM ----- 151 cfs (-27)
Daily Median Flow 494 cfs
Gauge 10.98 feet (-0.09)
View USGS Site Page >>
Guadalupe Rv at CR 143 nr Gonzales, TX - Gauge 6.43 feet (-0.05)
07/04/2020 05:30 AM
Gauge 6.43 feet (-0.05)
View USGS Site Page >>
Guadalupe Rv at Gonzales, TX - 876 cfs (-95)
07/04/2020 05:45 AM ----- 876 cfs (-95)
Daily Median Flow 853 cfs
Gauge 12.38 feet (-0.16)
View NWS Forecast >>
Peach Ck at Hwy 90 nr Waelder, TX - 0.00 cfs (+0.00)
07/04/2020 05:30 AM ----- 0.00 cfs (+0.00)
Daily Median Flow 0 cfs
Gauge 2.98 feet (+0.00)
View NWS Forecast >>
Peach Ck bl Dilworth, TX - 0.08 cfs (-0.03)
07/04/2020 05:00 AM ----- 0.08 cfs (-0.03)
Daily Median Flow 2 cfs
Gauge 7.65 feet (-0.07)
View NWS Forecast >>
Guadalupe Rv at Hwy 183 nr Hochheim, TX - 866 cfs (-61)
07/04/2020 05:00 AM ----- 866 cfs (-61)
Gauge 7.56 feet (-0.17)
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 - 0.71 cfs (-0.46)
07/04/2020 05:00 AM ----- 0.71 cfs (-0.46)
Daily Median Flow 5 cfs
Gauge 2.26 feet (-0.05)
View NWS Forecast >>
Guadalupe Rv at Cuero, TX - 872 cfs (-208)
07/04/2020 05:30 AM ----- 872 cfs (-208)
Daily Median Flow 979 cfs
Gauge 8.67 feet (-0.45)
View NWS Forecast >>
Guadalupe Rv at Victoria, TX - 987 cfs (-323)
07/04/2020 05:15 AM ----- 987 cfs (-323)
Daily Median Flow 1020 cfs
Gauge 7.20 feet (-0.70)
View NWS Forecast >>
Coleto Ck at Arnold Rd Crsg nr Schroeder, TX - 1.09 cfs (-0.79)
07/04/2020 05:45 AM ----- 1.09 cfs (-0.79)
Daily Median Flow 8 cfs
Gauge 4.10 feet (-0.07)
View NWS Forecast >>
Coleto Ck Res nr Victoria, TX - 94.35 msl (-0.03)
07/04/2020 05:00 AM
94.35 msl (-0.03)
View NWS Site >>
Coleto Ck nr Victoria, TX - 4.70 cfs (+0.22)
07/04/2020 05:30 AM ----- 4.70 cfs (+0.22)
Daily Median Flow 5 cfs
Gauge 3.99 feet (+0.01)
View NWS Forecast >>
Guadalupe Rv nr Bloomington, TX - 1120 cfs (+20)
07/04/2020 05:00 AM ----- 1120 cfs (+20)
Daily Median Flow 417 cfs
Gauge 12.51 feet (+0.08)
View NWS Forecast >>
Guadalupe Rv nr Tivoli, TX - 1460 cfs (+170)
07/04/2020 05:30 AM ----- 1460 cfs (+170)
Daily Median Flow 1210 cfs
Gauge 4.81 feet (+1.22)
View NWS Site >>

Blanco River Gauges

Blanco Rv at Crabapple Rd nr Blanco, TX - Gauge 0.62 feet (+0.00)
07/04/2020 05:45 AM
Gauge 0.62 feet (+0.00)
View NWS Forecast >>
Little Blanco Rv at FM 32 nr Fischer, TX - Gauge 4.88 feet (-0.02)
07/04/2020 05:45 AM
Gauge 4.88 feet (-0.02)
View USGS Site Page >>
Blanco Rv at Fischer Store Rd nr Fischer, TX - 47 cfs (+0)
07/04/2020 05:45 AM ----- 47 cfs (+0)
Daily Median Flow Not Available
Gauge 3.74 feet (+0.00)
View NWS Forecast >>
Blanco Rv at Wimberley, TX - 42 cfs (-1)
07/04/2020 05:45 AM ----- 42 cfs (-1)
Daily Median Flow 61 cfs
Gauge 3.87 feet (-0.01)
View NWS Forecast >>
Blanco Rv nr Kyle, TX - 4.67 cfs (-1.43)
07/04/2020 05:45 AM ----- 4.67 cfs (-1.43)
Daily Median Flow 61 cfs
Gauge 4.05 feet (-0.07)
View NWS Site >>
Blanco Rv at San Marcos, TX - 8.90 cfs (-0.28)
07/04/2020 05:40 AM ----- 8.90 cfs (-0.28)
Daily Median Flow Not Available
Gauge 7.95 feet (-0.01)

View NWS Forecast >>

San Marcos River Gauges

San Marcos Rv at San Marcos, TX - 192 cfs (+2)
07/04/2020 05:45 AM ----- 192 cfs (+2)
Daily Median Flow 200 cfs
Gauge 4.84 feet (+0.02)
View NWS Site >>
San Marcos Rv nr Martindale, TX - 166 cfs (-2)
07/04/2020 05:45 AM ----- 166 cfs (-2)
Daily Median Flow 222 cfs
Gauge 7.70 feet (-0.01)
View NWS Site >>
San Marcos Rv at Luling, TX - 185 cfs (+0)
07/04/2020 05:45 AM ----- 185 cfs (+0)
Daily Median Flow 234 cfs
Gauge 4.63 feet (+0.00)
View NWS Forecast >>
Plum Ck at Lockhart, TX - 142 cfs (-38)
07/04/2020 05:00 AM ----- 142 cfs (-38)
Daily Median Flow 1 cfs
Gauge 5.08 feet (-0.61)
Plum Ck nr Luling, TX - 149 cfs (-79)
07/04/2020 05:00 AM ----- 149 cfs (-79)
Daily Median Flow 13 cfs
Gauge 5.93 feet (-0.29)
View NWS Forecast >>
© 1998 Guadalupe-Blanco River Authority