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 - 22 cfs (-2)
04/19/2021 07:40 PM ----- 22 cfs (-2)
Daily Median Flow 49 cfs
Gauge 7.70 feet (-0.03)
View NWS Forecast >>
N Fk Guadalupe Rv nr Hunt, TX - 11 cfs (+3)
04/19/2021 07:30 PM ----- 11 cfs (+3)
Daily Median Flow 19 cfs
Gauge 1.58 feet (-0.01)

View USGS Site Page >>
Guadalupe Rv at Kerrville, TX - 26 cfs (+1)
04/19/2021 07:45 PM ----- 26 cfs (+1)
Daily Median Flow 91 cfs
Gauge 1.60 feet (-0.01)
View NWS Forecast >>
Guadalupe Rv at Comfort, TX - 51 cfs (+0)
04/19/2021 06:45 PM ----- 51 cfs (+0)
Daily Median Flow 121 cfs
Gauge 3.35 feet (+0.00)
View NWS Forecast >>
Guadalupe Rv nr Spring Branch, TX - 39 cfs (-1)
04/19/2021 07:00 PM ----- 39 cfs (-1)
Daily Median Flow 175 cfs
Gauge 1.95 feet (-0.01)
View NWS Forecast >>
Canyon Lk nr New Braunfels, TX - 902.64 msl (+0.00)
04/19/2021 07:15 PM
902.64 msl (+0.00)
View NWS Site >>
Guadalupe Rv at Sattler, TX - 54 cfs (+2)
04/19/2021 07:15 PM ----- 54 cfs (+2)
Daily Median Flow 210 cfs
Gauge 4.14 feet (+0.01)
View NWS Forecast >>
Guadalupe Rv at Third Crossing nr Sattler, TX - Gauge 3.51 feet (+0.00)
04/19/2021 07:30 PM
Gauge 3.51 feet (+0.00)
View USGS Site Page >>
Guadalupe Rv abv Comal Rv at New Braunfels, TX - 24 cfs (+0)
04/19/2021 07:30 PM ----- 24 cfs (+0)
Daily Median Flow 303 cfs
View NWS Forecast >>
WFk Dry Comal Ck at Schuetz Dam, New Braunfels, TX - 799.30 msl (+0.00)
04/19/2021 07:30 PM
799.30 msl (+0.00)
Dry Comal Ck at Loop 337 nr New Braunfels, TX - 0.06 cfs (+0.00)
04/19/2021 07:00 PM ----- 0.06 cfs (+0.00)
Daily Median Flow 1 cfs
View NWS Site >>
Comal Rv at New Braunfels, TX - 207 cfs (-3)
04/19/2021 06:45 PM ----- 207 cfs (-3)
Daily Median Flow 320 cfs
Gauge 3.91 feet (-0.01)
View NWS Forecast >>
Guadalupe Rv at New Braunfels, TX - Gauge 9.49 feet (+0.00)
04/19/2021 07:00 PM
Gauge 9.49 feet (+0.00)
View NWS Forecast >>
Guadalupe Rv at Hwy 123-BR at Seguin, TX - Gauge -0.44 feet (+0.07)
04/19/2021 07:15 PM
Gauge -0.44 feet (+0.07)
View NWS Forecast >>
Geronimo Ck nr Seguin, TX - Gauge 3.98 feet (+0.01)
04/19/2021 07:00 PM
Gauge 3.98 feet (+0.01)
View USGS Site Page >>
Guadalupe Rv at FM 1117 nr Seguin, TX - 485 cfs (+352)
04/19/2021 07:15 PM ----- 485 cfs (+352)
Daily Median Flow 505 cfs
Gauge 11.68 feet (+1.00)
View USGS Site Page >>
Guadalupe Rv at CR 143 nr Gonzales, TX - Gauge 6.15 feet (-0.02)
04/19/2021 07:30 PM
Gauge 6.15 feet (-0.02)
View USGS Site Page >>
Guadalupe Rv at Gonzales, TX - 551 cfs (+12)
04/19/2021 06:45 PM ----- 551 cfs (+12)
Daily Median Flow 1450 cfs
Gauge 11.75 feet (+0.02)
View NWS Forecast >>
Peach Ck at Hwy 90 nr Waelder, TX - 0.00 cfs (+0.00)
04/19/2021 07:30 PM ----- 0.00 cfs (+0.00)
Daily Median Flow 22 cfs
Gauge 2.97 feet (+0.00)
View NWS Forecast >>
Peach Ck bl Dilworth, TX - 1.48 cfs (+0.00)
04/19/2021 07:00 PM ----- 1.48 cfs (+0.00)
Daily Median Flow 9 cfs
Gauge 8.94 feet (+0.00)
View NWS Forecast >>
Guadalupe Rv at Hwy 183 nr Hochheim, TX - 282 cfs (-106)
04/19/2021 07:00 PM ----- 282 cfs (-106)
Gauge 6.06 feet (-0.32)
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 - 0.88 cfs (+0.16)
04/19/2021 07:00 PM ----- 0.88 cfs (+0.16)
Daily Median Flow 10 cfs
Gauge 2.32 feet (+0.02)
View NWS Forecast >>
Guadalupe Rv at Cuero, TX - 288 cfs (-226)
04/19/2021 07:30 PM ----- 288 cfs (-226)
Daily Median Flow 1330 cfs
Gauge 7.26 feet (-0.65)
View NWS Forecast >>
Guadalupe Rv at Victoria, TX - 458 cfs (+230)
04/19/2021 07:15 PM ----- 458 cfs (+230)
Daily Median Flow 1220 cfs
Gauge 5.57 feet (+0.91)
View NWS Forecast >>
Coleto Ck at Arnold Rd Crsg nr Schroeder, TX - 0.00 cfs (+0.00)
04/19/2021 06:45 PM ----- 0.00 cfs (+0.00)
Daily Median Flow 12 cfs
Gauge 2.28 feet (-0.01)
View NWS Forecast >>
Coleto Ck Res nr Victoria, TX - 93.99 msl (-0.01)
04/19/2021 07:00 PM
93.99 msl (-0.01)
View NWS Site >>
Coleto Ck nr Victoria, TX - 2.25 cfs (-0.10)
04/19/2021 07:30 PM ----- 2.25 cfs (-0.10)
Daily Median Flow 5 cfs
Gauge 3.83 feet (-0.01)
View NWS Forecast >>
Guadalupe Rv nr Bloomington, TX - 336 cfs (-44)
04/19/2021 07:00 PM ----- 336 cfs (-44)
Daily Median Flow 872 cfs
Gauge 8.08 feet (-0.36)
View NWS Forecast >>
Guadalupe Rv nr Tivoli, TX - 485 cfs (+121)
04/19/2021 07:30 PM ----- 485 cfs (+121)
Daily Median Flow 2010 cfs
Gauge 4.23 feet (+0.64)
View NWS Site >>

Blanco River Gauges

Blanco Rv at Crabapple Rd nr Blanco, TX - Gauge 0.57 feet (-0.02)
04/19/2021 07:30 PM
Gauge 0.57 feet (-0.02)
View NWS Forecast >>
Little Blanco Rv at FM 32 nr Fischer, TX - Gauge 2.80 feet (-0.02)
04/19/2021 07:30 PM
Gauge 2.80 feet (-0.02)
View USGS Site Page >>
Blanco Rv at Fischer Store Rd nr Fischer, TX - 12 cfs (+0)
04/19/2021 07:30 PM ----- 12 cfs (+0)
Daily Median Flow Not Available
Gauge 3.49 feet (+0.01)
View NWS Forecast >>
Blanco Rv at Wimberley, TX - 16 cfs (+1)
04/19/2021 07:30 PM ----- 16 cfs (+1)
Daily Median Flow 80 cfs
Gauge 3.60 feet (+0.01)
View NWS Forecast >>
Blanco Rv nr Kyle, TX - 0.00 cfs (+0.00)
04/19/2021 07:30 PM ----- 0.00 cfs (+0.00)
Daily Median Flow 71 cfs
Gauge 2.95 feet (+0.00)
View NWS Site >>
Blanco Rv at San Marcos, TX - 0.00 cfs (+0.00)
04/19/2021 06:40 PM ----- 0.00 cfs (+0.00)
Daily Median Flow Not Available
Gauge 7.23 feet (-0.05)

View NWS Forecast >>

San Marcos River Gauges

San Marcos Rv at San Marcos, TX - 101 cfs (+1)
04/19/2021 06:45 PM ----- 101 cfs (+1)
Daily Median Flow 176 cfs
Gauge 4.34 feet (+0.03)
View NWS Site >>
San Marcos Rv nr Martindale, TX - 133 cfs (+31)
04/19/2021 06:45 PM ----- 133 cfs (+31)
Daily Median Flow 231 cfs
Gauge 7.45 feet (+0.06)
View NWS Site >>
San Marcos Rv at Luling, TX - 110 cfs (+1)
04/19/2021 06:45 PM ----- 110 cfs (+1)
Daily Median Flow 333 cfs
Gauge 4.07 feet (+0.01)
View NWS Forecast >>
Plum Ck at Lockhart, TX - 0.49 cfs (-0.05)
04/19/2021 07:00 PM ----- 0.49 cfs (-0.05)
Daily Median Flow 5 cfs
Gauge 1.80 feet (-0.02)
Plum Ck nr Luling, TX - 11 cfs (+0)
04/19/2021 07:00 PM ----- 11 cfs (+0)
Daily Median Flow 22 cfs
Gauge 4.66 feet (+0.01)
View NWS Forecast >>
© 1998 Guadalupe-Blanco River Authority