Overview Realtime Historical Map View
Flood Watch
2026-10-02T19:00:00-05:00

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of south central Texas, including the following counties, Atascosa, Bandera, Bastrop, Bexar, Blanco, Burnet, Caldwell, Comal, De Witt, Dimmit, Fayette, Frio, Gillespie, Gonzales, Guadalupe, Hays, Karnes, Kendall, Kerr, Lavaca, Lee, Llano, Medina, Travis, Uvalde, Williamson, Wilson and Zavala. * WHEN...Through 7pm this evening. * IMPACTS...There is a potential for life threatening flooding somewhere in the watch area. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded. Extensive street flooding and flooding of creeks and rivers are possible. * ADDITIONAL DETAILS... - Between 1 to 3 inches of additional rainfall is possible, with isolated amounts greater than 6 inches possible. - Some locations that may experience flooding include... San Antonio, Austin, Round Rock, New Braunfels, Cedar Park, Georgetown, San Marcos, Pflugerville, Medina, Schertz, Kyle, Seguin, Cibolo, Kerrville, Converse, Universal City, Taylor, Uvalde, Live Oak and Buda. - http://www.weather.gov/safety/flood

San Antonio Rv At San Antonio, Tx Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
01-01 29.16
01-02 31.45
01-03 47.09
01-04 34.92
01-05 30.13
01-06 42.06
01-07 25.33
01-08 26.25
01-09 27.69
01-10 27.48
01-11 35.1
01-12 32.43
01-13 24.17
01-14 24.42
01-15 24.45
01-16 25.63
01-17 24.47
01-18 25.88
01-19 25.55
01-20 28.12
01-21 28.32
01-22 35.73
01-23 29.3
01-24 37.64
01-25 24.63
01-26 22.56
01-27 23.62
01-28 24.48
01-29 24.51
01-30 28.16
01-31 29.76
02-01 36.97
02-02 27.25
02-03 30.45
02-04 30.32
02-05 31.28
02-06 31.18
02-07 29.78
02-08 30.12
02-09 28.61
02-10 30.91
02-11 29.49
02-12 34.67
02-13 31.49
02-14 29.13
02-15 30.13
02-16 30.73
02-17 29.12
02-18 28.71
02-19 30.9
02-20 31.64
02-21 28.5
02-22 30.07
02-23 27.81
02-24 27.7
02-25 27.51
02-26 28.18
02-27 27.64
02-28 27.04
02-29 30.48
03-01 29.04
03-02 28.09
03-03 27.25
03-04 27.96
03-05 28.48
03-06 29.48
03-07 28.74
03-08 28.52
03-09 31.21
03-10 27.59
03-11 24.25
03-12 26.14
03-13 27.9
03-14 26.55
03-15 27.59
03-16 27.55
03-17 29.66
03-18 29.44
03-19 28.83
03-20 32.04
03-21 33.93
03-22 30.27
03-23 35.89
03-24 34.0
03-25 28.2
03-26 27.24
03-27 27.89
03-28 55.98
03-29 34.93
03-30 27.53
03-31 27.21
04-01 26.06
04-02 29.06
04-03 29.45
04-04 32.19
04-05 28.87
04-06 27.5
04-07 28.6
04-08 31.33
04-09 27.99
04-10 28.06
04-11 29.23
04-12 26.57
04-13 27.52
04-14 27.3
04-15 28.1
04-16 26.17
04-17 28.8
04-18 28.17
04-19 25.69
04-20 25.18
04-21 28.84
04-22 27.11
04-23 28.49
04-24 27.53
04-25 27.57
04-26 25.41
04-27 25.66
04-28 35.61
04-29 34.53
04-30 28.46
05-01 28.14
05-02 26.69
05-03 25.94
05-04 25.29
05-05 26.58
05-06 24.86
05-07 24.26
05-08 25.16
05-09 24.54
05-10 27.56
05-11 24.37
05-12 23.09
05-13 30.31
05-14 27.7
05-15 22.69
05-16 32.49
05-17 25.26
05-18 26.69
05-19 25.65
05-20 24.69
05-21 27.43
05-22 27.69
05-23 24.88
05-24 32.24
05-25 28.8
05-26 26.01
05-27 29.71
05-28 26.29
05-29 28.12
05-30 28.28
05-31 30.23
06-01 30.75
06-02 26.58
06-03 27.98
06-04 26.74
06-05 30.6
06-06 27.44
06-07 26.76
06-08 27.37
06-09 28.35
06-10 28.94
06-11 34.14
06-12 29.0
06-13 29.36
06-14 27.86
06-15 27.57
06-16 26.53
06-17 26.93
06-18 25.4
06-19 27.5
06-20 29.15
06-21 26.5
06-22 29.56
06-23 27.01
06-24 26.31
06-25 24.6
06-26 25.14
06-27 26.09
06-28 23.76
06-29 25.53
06-30 26.6
07-01 24.99
07-02 25.09
07-03 25.16
07-04 26.97
07-05 27.32
07-06 27.4
07-07 27.58
07-08 28.3
07-09 30.66
07-10 29.16
07-11 28.74
07-12 29.71
07-13 27.29
07-14 31.66
07-15 29.24
07-16 29.83
07-17 28.6
07-18 25.81
07-19 25.87
07-20 25.4
07-21 25.79
07-22 26.67
07-23 28.41
07-24 28.41
07-25 27.42
07-26 28.47
07-27 28.95
07-28 26.54
07-29 24.91
07-30 25.44
07-31 26.17
08-01 28.44
08-02 26.66
08-03 25.62
08-04 26.27
08-05 25.65
08-06 25.09
08-07 26.04
08-08 25.29
08-09 24.85
08-10 23.72
08-11 26.89
08-12 23.91
08-13 27.47
08-14 24.11
08-15 25.4
08-16 25.66
08-17 25.21
08-18 22.78
08-19 34.45
08-20 25.66
08-21 113.0
08-22 22.3
08-23 25.44
08-24 23.76
08-25 22.46
08-26 22.59
08-27 23.27
08-28 21.82
08-29 24.54
08-30 23.06
08-31 25.36
09-01 25.34
09-02 23.8
09-03 23.42
09-04 25.88
09-05 25.05
09-06 24.97
09-07 25.52
09-08 24.0
09-09 31.19
09-10 30.13
09-11 24.04
09-12 23.43
09-13 21.22
09-14 22.93
09-15 23.95
09-16 23.59
09-17 24.76
09-18 23.55
09-19 28.22
09-20 25.76
09-21 25.88
09-22 30.01
09-23 25.1
09-24 24.74
09-25 25.33
09-26 31.86
09-27 28.69
09-28 26.36
09-29 30.35
09-30 25.98
10-01 22.05
10-02 26.2
10-03 23.61
10-04 25.06
10-05 25.91
10-06 24.54
10-07 22.78
10-08 23.58
10-09 24.18
10-10 23.9
10-11 26.85
10-12 25.24
10-13 25.31
10-14 36.55
10-15 26.23
10-16 24.84
10-17 24.05
10-18 23.92
10-19 25.11
10-20 24.02
10-21 24.49
10-22 25.26
10-23 23.74
10-24 25.2
10-25 31.89
10-26 25.53
10-27 25.06
10-28 25.71
10-29 23.69
10-30 33.9
10-31 26.57
11-01 23.97
11-02 26.13
11-03 25.06
11-04 30.45
11-05 24.68
11-06 29.15
11-07 24.61
11-08 24.44
11-09 29.02
11-10 27.58
11-11 25.0
11-12 25.81
11-13 27.08
11-14 25.66
11-15 25.41
11-16 27.47
11-17 26.23
11-18 26.1
11-19 27.55
11-20 27.88
11-21 27.72
11-22 27.83
11-23 30.13
11-24 27.57
11-25 27.69
11-26 33.44
11-27 25.36
11-28 28.2
11-29 27.69
11-30 26.33
12-01 26.94
12-02 25.99
12-03 26.04
12-04 26.77
12-05 29.99
12-06 26.62
12-07 28.46
12-08 26.43
12-09 26.47
12-10 27.11
12-11 26.85
12-12 28.55
12-13 26.44
12-14 26.29
12-15 27.16
12-16 27.71
12-17 27.45
12-18 26.96
12-19 37.08
12-20 28.33
12-21 28.52
12-22 27.14
12-23 27.05
12-24 28.78
12-25 29.15
12-26 26.01
12-27 32.62
12-28 27.78
12-29 29.89
12-30 28.56
12-31 30.24

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index