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Flash Flood Warning
2026-07-21T01:15:00-07:00

FFWTWC The National Weather Service in Tucson has issued a * Flash Flood Warning for... South Central Santa Cruz County in southeastern Arizona... * Until 115 AM MST. * At 1012 PM MST, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 0.5 and 1.5 inches of rain have fallen. Additional rainfall amounts up to 1 inch are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Nogales, Rio Rico, Nogales International Airport and Kino Springs. This includes the following highways... Interstate 19 between mile markers 1 and 13. Route 82 between mile markers 1 and 10. This includes the following Flash Flood Prone Locations... Nogales Wash at Doe St Bridge and Pendleton Dr at Sonoita Creek. This includes the following streams and drainages... Sonoita Creek, Potrero Creek and Santa Cruz River.

Santa Cruz River Near Nogales, Az. 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 3.5
01-02 3.47
01-03 2.84
01-04 2.47
01-05 3.41
01-06 2.71
01-07 2.7
01-08 3.81
01-09 2.87
01-10 2.68
01-11 3.22
01-12 2.98
01-13 2.88
01-14 2.73
01-15 2.44
01-16 2.38
01-17 2.24
01-18 1.85
01-19 2.24
01-20 2.12
01-21 1.9
01-22 1.8
01-23 1.91
01-24 1.73
01-25 2.5
01-26 1.95
01-27 1.9
01-28 1.55
01-29 1.63
01-30 1.66
01-31 1.97
02-01 5.37
02-02 2.88
02-03 2.27
02-04 1.58
02-05 1.75
02-06 1.67
02-07 1.73
02-08 1.59
02-09 1.6
02-10 1.8
02-11 1.71
02-12 1.84
02-13 1.76
02-14 1.76
02-15 1.86
02-16 1.93
02-17 1.89
02-18 1.87
02-19 2.15
02-20 1.88
02-21 1.7
02-22 1.92
02-23 1.81
02-24 1.65
02-25 1.54
02-26 1.58
02-27 1.72
02-28 1.52
02-29 1.87
03-01 1.5
03-02 1.72
03-03 1.53
03-04 1.5
03-05 1.46
03-06 1.73
03-07 2.05
03-08 1.53
03-09 1.55
03-10 1.72
03-11 1.64
03-12 1.63
03-13 1.59
03-14 1.58
03-15 1.37
03-16 1.49
03-17 1.52
03-18 1.59
03-19 1.56
03-20 15.32
03-21 4.38
03-22 1.57
03-23 2.64
03-24 2.56
03-25 2.11
03-26 3.58
03-27 3.07
03-28 3.1
03-29 2.63
03-30 2.49
03-31 2.58
04-01 2.29
04-02 2.35
04-03 2.23
04-04 2.25
04-05 2.65
04-06 2.03
04-07 2.72
04-08 2.88
04-09 2.17
04-10 2.0
04-11 2.19
04-12 2.21
04-13 2.31
04-14 2.37
04-15 2.09
04-16 2.1
04-17 2.22
04-18 2.2
04-19 2.03
04-20 2.18
04-21 2.48
04-22 2.54
04-23 2.52
04-24 2.83
04-25 2.65
04-26 2.44
04-27 2.57
04-28 2.27
04-29 2.59
04-30 2.94
05-01 2.53
05-02 2.78
05-03 2.8
05-04 3.81
05-05 2.85
05-06 2.18
05-07 2.14
05-08 2.44
05-09 2.41
05-10 2.18
05-11 2.0
05-12 1.89
05-13 2.23
05-14 2.92
05-15 3.72
05-16 2.92
05-17 2.48
05-18 1.99
05-19 2.33
05-20 2.45
05-21 2.05
05-22 2.57
05-23 2.03
05-24 2.13
05-25 2.57
05-26 3.84
05-27 2.52
05-28 2.56
05-29 2.57
05-30 2.47
05-31 3.37
06-01 2.84
06-02 7.09
06-03 3.34
06-04 3.3
06-05 2.83
06-06 0.73
06-07 0.53
06-08 0.41
06-09 0.17
06-10 0.33
06-11 0.4
06-12 0.45
06-13 0.42
06-14 0.4
06-15 0.26
06-16 0.2
06-17 0.35
06-18 2.49
06-19 0.33
06-20 0.33
06-21 0.31
06-22 0.29
06-23 0.25
06-24 0.24
06-25 0.19
06-26 0.14
06-27 0.12
06-28 0.09
07-03 0.33
07-04 0.51
07-05 23.31
07-06 0.97
07-07 53.58
07-08 0.55
07-09 0.33
07-10 364.75
07-11 9.2
07-12 0.4
07-13 1.29
07-14 66.0
07-15 1.49
07-16 52.95
07-17 17.52
07-18 9.84
07-19 49.38
07-20 22.99
07-21 2.02
07-22 1.73
07-23 189.83
07-24 54.78
07-25 48.62
07-26 14.13
07-27 4.96
07-28 4.91
07-29 39.64
07-30 55.46
07-31 42.78
08-01 96.88
08-02 9.3
08-03 29.28
08-04 41.05
08-05 76.76
08-06 53.24
08-07 137.78
08-08 32.36
08-09 100.5
08-10 62.42
08-11 29.07
08-12 19.6
08-13 26.91
08-14 22.13
08-15 25.28
08-16 15.65
08-17 7.18
08-18 53.92
08-19 13.36
08-20 12.62
08-21 15.04
08-22 147.74
08-23 107.48
08-24 191.46
08-25 77.89
08-26 163.59
08-27 37.37
08-28 13.23
08-29 7.75
08-30 4.32
08-31 4.53
09-01 3.8
09-02 4.18
09-03 5.12
09-04 2.72
09-05 34.86
09-06 4.98
09-07 37.58
09-08 85.16
09-09 10.45
09-10 5.85
09-11 69.57
09-12 22.35
09-13 8.99
09-14 4.43
09-15 0.88
09-16 0.8
09-17 0.79
09-18 1276.5
09-19 269.56
09-20 135.25
09-21 36.93
09-22 13.28
09-23 38.77
09-24 10.02
09-25 11.35
09-26 43.76
09-27 290.76
09-28 6.29
09-29 5.01
09-30 4.26
10-01 3.2
10-02 3.12
10-03 2.42
10-04 2.08
10-05 1.87
10-06 1.66
10-07 1.41
10-08 2.98
10-09 4.62
10-10 9.69
10-11 6.79
10-12 4.74
10-13 237.34
10-14 173.39
10-15 2.69
10-16 1.77
10-17 2.03
10-18 1.6
10-19 1.71
10-20 1.65
10-21 1.59
10-22 1.7
10-23 1.62
10-24 1.16
10-25 1.36
10-26 1.69
10-27 1.46
10-28 1.42
10-29 1.33
10-30 1.18
10-31 1.18
11-01 1.07
11-02 1.09
11-03 1.34
11-04 1.32
11-05 1.31
11-06 1.46
11-07 1.2
11-08 1.24
11-09 1.42
11-10 1.75
11-11 1.49
11-12 1.5
11-13 1.54
11-14 1.88
11-15 1.71
11-16 1.71
11-17 1.64
11-18 1.62
11-19 1.65
11-20 1.59
11-21 1.76
11-22 1.43
11-23 1.65
11-24 2.15
11-25 1.95
11-26 1.5
11-27 1.13
11-28 1.89
11-29 16.07
11-30 117.25
12-01 14.1
12-02 3.81
12-03 2.13
12-04 1.76
12-05 1.82
12-06 1.82
12-07 1.8
12-08 1.8
12-09 1.83
12-10 2.1
12-11 2.03
12-12 1.87
12-13 2.08
12-14 1.98
12-15 1.95
12-16 1.82
12-17 1.94
12-18 1.98
12-19 1.99
12-20 2.19
12-21 2.06
12-22 2.05
12-23 2.21
12-24 2.03
12-25 2.29
12-26 2.39
12-27 2.22
12-28 20.82
12-29 9.86
12-30 5.42
12-31 3.95

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index