Overview Realtime Historical Map View
Heat Advisory
2026-09-05T19:00:00-05:00

* WHAT...Heat index values up to 109 expected. * WHERE...Portions of northwest and west central Arkansas and east central, northeast, and southeast Oklahoma. * WHEN...From noon to 7 PM CDT Saturday. * IMPACTS...Heat related illnesses are possible especially impacting those not acclimated to the conditions or those performing strenuous activities.

Arkansas River At Ralston, Ok 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 4955.09
01-02 5614.63
01-03 5630.63
01-04 6046.14
01-05 4208.3
01-06 3803.9
01-07 3642.3
01-08 3586.9
01-09 2598.09
01-10 2033.73
01-11 2873.22
01-12 3388.22
01-13 3579.2
01-14 4638.13
01-15 3478.82
01-16 3893.56
01-17 3097.92
01-18 2296.55
01-19 2596.75
01-20 3681.36
01-21 3466.55
01-22 3685.5
01-23 3115.27
01-24 3701.45
01-25 3410.0
01-26 4001.5
01-27 3796.67
01-28 3467.6
01-29 3408.1
01-30 2753.23
01-31 3169.54
02-01 2762.46
02-02 3072.42
02-03 2741.54
02-04 3326.42
02-05 3310.77
02-06 4710.45
02-07 3940.5
02-08 4071.42
02-09 3740.46
02-10 3881.23
02-11 3661.17
02-12 3627.77
02-13 2585.17
02-14 3148.07
02-15 3114.31
02-16 3137.62
02-17 3854.25
02-18 3771.17
02-19 3675.21
02-20 3722.0
02-21 3645.29
02-22 3630.07
02-23 3274.64
02-24 3169.93
02-25 2760.75
02-26 3231.67
02-27 4205.21
02-28 3842.71
02-29 7480.75
03-01 3785.21
03-02 3718.31
03-03 3732.38
03-04 2772.43
03-05 2677.23
03-06 3140.86
03-07 3126.69
03-08 3378.83
03-09 3536.54
03-10 3184.0
03-11 3879.23
03-12 2943.83
03-13 3782.36
03-14 5478.43
03-15 5637.31
03-16 5558.46
03-17 5372.0
03-18 6392.62
03-19 5412.57
03-20 6813.5
03-21 5320.13
03-22 4331.29
03-23 4556.0
03-24 3573.29
03-25 5233.21
03-26 5652.46
03-27 4607.57
03-28 3814.21
03-29 3489.71
03-30 4071.64
03-31 5188.08
04-01 5821.8
04-02 6639.67
04-03 6064.5
04-04 5980.07
04-05 5922.47
04-06 4090.86
04-07 5860.62
04-08 6432.57
04-09 5963.29
04-10 5907.71
04-11 4144.07
04-12 3588.07
04-13 3545.0
04-14 3496.69
04-15 3940.77
04-16 3781.85
04-17 3881.0
04-18 3853.85
04-19 4634.23
04-20 4733.69
04-21 5769.21
04-22 5931.69
04-23 6147.75
04-24 5327.42
04-25 4499.92
04-26 4635.23
04-27 3723.21
04-28 3923.62
04-29 4170.42
04-30 4630.73
05-01 11561.77
05-02 8664.62
05-03 9181.46
05-04 9009.5
05-05 8373.79
05-06 7566.57
05-07 7052.64
05-08 6288.79
05-09 7197.47
05-10 9985.62
05-11 11021.79
05-12 13367.86
05-13 12973.71
05-14 9050.93
05-15 8667.23
05-16 9259.64
05-17 9388.77
05-18 8152.47
05-19 11779.29
05-20 13600.0
05-21 15534.46
05-22 13963.36
05-23 17864.71
05-24 16423.64
05-25 20521.21
05-26 21976.86
05-27 22481.57
05-28 23495.64
05-29 21821.43
05-30 22524.64
05-31 21150.29
06-01 14218.67
06-02 11645.6
06-03 12299.36
06-04 13546.69
06-05 11794.64
06-06 11614.23
06-07 14811.15
06-08 16559.43
06-09 15433.43
06-10 13755.5
06-11 12109.14
06-12 10367.57
06-13 9980.0
06-14 9918.75
06-15 10804.0
06-16 11042.14
06-17 9594.86
06-18 9087.93
06-19 12242.58
06-20 10241.85
06-21 10499.85
06-22 9006.08
06-23 10771.08
06-24 11865.57
06-25 12559.21
06-26 13106.15
06-27 12354.92
06-28 13703.42
06-29 13035.54
06-30 12115.15
07-01 11781.77
07-02 11713.15
07-03 11981.27
07-04 9635.92
07-05 9925.0
07-06 10506.82
07-07 8517.58
07-08 7454.38
07-09 8196.83
07-10 8477.54
07-11 7101.67
07-12 6432.86
07-13 5314.57
07-14 6162.47
07-15 6210.53
07-16 6170.07
07-17 6248.54
07-18 5944.21
07-19 6155.29
07-20 7781.5
07-21 7252.64
07-22 6549.14
07-23 6226.07
07-24 5741.21
07-25 4618.4
07-26 4454.8
07-27 4189.73
07-28 4986.43
07-29 4408.43
07-30 4754.36
07-31 6389.86
08-01 6881.67
08-02 7313.92
08-03 6929.29
08-04 6994.29
08-05 6138.53
08-06 6638.2
08-07 7180.53
08-08 8083.21
08-09 8743.0
08-10 9374.71
08-11 8491.0
08-12 9118.5
08-13 8404.71
08-14 7427.8
08-15 7440.57
08-16 5768.85
08-17 5921.62
08-18 5123.08
08-19 4787.29
08-20 4014.0
08-21 3525.36
08-22 4380.25
08-23 5492.64
08-24 4110.08
08-25 2810.77
08-26 2824.0
08-27 3238.31
08-28 3665.0
08-29 4007.13
08-30 3905.07
08-31 3258.33
09-01 3524.85
09-02 3318.13
09-03 3148.0
09-04 3005.69
09-05 2925.75
09-06 2970.0
09-07 3031.17
09-08 2654.5
09-09 2949.18
09-10 3643.27
09-11 4083.83
09-12 6915.09
09-13 7825.0
09-14 7286.45
09-15 7599.8
09-16 5139.92
09-17 5296.55
09-18 4133.45
09-19 6018.15
09-20 7178.25
09-21 2512.08
09-22 2755.72
09-23 2430.4
09-24 2332.45
09-25 2493.67
09-26 2886.42
09-27 4159.7
09-28 4626.5
09-29 5008.42
09-30 4186.4
10-01 4491.6
10-02 3909.64
10-03 3577.89
10-04 3453.67
10-05 4415.89
10-06 6844.96
10-07 6578.2
10-08 7924.82
10-09 6449.75
10-10 6818.5
10-11 8769.09
10-12 11215.2
10-13 10592.0
10-14 9259.67
10-15 8205.1
10-16 3601.18
10-17 6561.42
10-18 6369.33
10-19 6048.5
10-20 2374.73
10-21 2441.5
10-22 4796.91
10-23 4795.0
10-24 3822.83
10-25 3487.67
10-26 3834.27
10-27 3193.0
10-28 3355.6
10-29 2730.91
10-30 2867.55
10-31 3560.0
11-01 4098.45
11-02 4393.45
11-03 4496.6
11-04 3466.64
11-05 3494.5
11-06 3370.45
11-07 2482.0
11-08 1918.0
11-09 2576.6
11-10 3640.45
11-11 3902.8
11-12 2450.08
11-13 2734.67
11-14 2699.77
11-15 2301.45
11-16 1703.82
11-17 2031.73
11-18 2319.09
11-19 1574.45
11-20 1725.5
11-21 2032.18
11-22 2017.3
11-23 1638.9
11-24 1990.0
11-25 1894.64
11-26 2327.4
11-27 2477.91
11-28 2403.4
11-29 2193.36
11-30 2220.45
12-01 2029.92
12-02 2667.8
12-03 2526.5
12-04 2611.64
12-05 2057.0
12-06 1790.82
12-07 1623.71
12-08 1570.29
12-09 1677.54
12-10 1707.42
12-11 1237.69
12-12 1709.54
12-13 2121.42
12-14 1905.09
12-15 1830.45
12-16 1943.92
12-17 2110.83
12-18 2763.91
12-19 3229.73
12-20 2073.6
12-21 1780.09
12-22 4768.38
12-23 3965.62
12-24 3346.67
12-25 3592.45
12-26 3726.75
12-27 3662.36
12-28 3471.5
12-29 3336.6
12-30 5127.3
12-31 4986.18

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index