Overview Realtime Historical Map View
Red Flag Warning
2026-08-22T22:00:00-07:00

...WIDESPREAD BREEZY WESTERLY WINDS AND LOW RELATIVE HUMIDITY TODAY... ...HIGH-BASED SHOWERS AND THUNDERSTORMS THIS EVENING FOR THE NORTHERN BLUE MOUNTAINS... .An approaching low-pressure system will bring widespread breezy westerly winds through the Cascade gaps, across the Columbia Basin, and into portions of the Blue Mountains today. Coupled with low relative humidity, this will lead to critical fire weather conditions. Moreover, high-based showers and thunderstorms are forecast. * AFFECTED AREA...Fire Weather Zones 690 Kittitas Valley, 691 Lower Columbia Basin of Oregon, 691 Lower Columbia Basin of Washington and 703 Warm Springs Reservation. * TIMING...Until 10 PM PDT this evening. * WINDS...West 15 to 25 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 15 to 25 percent. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended.

Yakima River Above Ahtanum Creek At Union Gap, Wa 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 2341.82
01-02 2550.0
01-03 2444.0
01-04 3029.0
01-05 2467.78
01-06 3094.0
01-07 3242.0
01-08 3112.0
01-09 2953.0
01-10 2745.0
01-11 2485.0
01-12 2390.0
01-13 2395.0
01-14 3163.64
01-15 3240.91
01-16 3110.91
01-17 3055.83
01-18 2915.0
01-19 3044.17
01-20 2948.33
01-21 2778.18
01-22 2845.0
01-23 2730.91
01-24 2723.33
01-25 2787.27
01-26 2879.09
01-27 2781.54
01-28 2849.17
01-29 2979.23
01-30 2832.14
01-31 2889.29
02-01 3140.77
02-02 3606.15
02-03 3381.43
02-04 3287.14
02-05 3490.0
02-06 3700.83
02-07 4350.0
02-08 5417.0
02-09 4633.33
02-10 4410.0
02-11 4313.0
02-12 4161.82
02-13 3766.67
02-14 3635.0
02-15 4376.15
02-16 4440.0
02-17 3835.83
02-18 3633.33
02-19 3370.77
02-20 3317.5
02-21 2993.85
02-22 2924.62
02-23 3913.85
02-24 3646.92
02-25 3254.17
02-26 3070.77
02-27 3037.14
02-28 2941.43
02-29 3972.5
03-01 2793.85
03-02 3470.71
03-03 3500.71
03-04 3281.43
03-05 3258.57
03-06 3290.71
03-07 3980.0
03-08 3767.14
03-09 3572.14
03-10 3797.86
03-11 3827.14
03-12 3607.86
03-13 3462.14
03-14 3615.71
03-15 3723.57
03-16 3890.71
03-17 4011.43
03-18 3932.14
03-19 4650.0
03-20 4735.71
03-21 4889.33
03-22 5051.43
03-23 4614.67
03-24 4577.33
03-25 4722.67
03-26 5105.33
03-27 5249.33
03-28 5407.33
03-29 5028.67
03-30 4740.0
03-31 4705.0
04-01 4623.33
04-02 4498.0
04-03 4508.0
04-04 4616.67
04-05 4656.67
04-06 4471.43
04-07 4717.33
04-08 4988.67
04-09 4716.15
04-10 5224.0
04-11 5265.33
04-12 5656.43
04-13 5556.43
04-14 5500.71
04-15 4791.54
04-16 4566.15
04-17 4095.83
04-18 4446.92
04-19 4672.31
04-20 5097.69
04-21 5645.71
04-22 5715.71
04-23 5845.0
04-24 6234.29
04-25 6937.69
04-26 6752.86
04-27 6743.57
04-28 6761.43
04-29 6707.86
04-30 6333.85
05-01 6249.33
05-02 6153.57
05-03 6111.43
05-04 6571.33
05-05 6894.0
05-06 7451.33
05-07 7458.67
05-08 7182.14
05-09 7054.0
05-10 6447.86
05-11 6845.33
05-12 7011.33
05-13 6929.33
05-14 6543.08
05-15 6736.67
05-16 7113.08
05-17 8662.86
05-18 7576.67
05-19 7652.14
05-20 7307.14
05-21 7099.29
05-22 6883.33
05-23 6872.67
05-24 6646.0
05-25 6544.0
05-26 6490.67
05-27 6455.33
05-28 6378.67
05-29 6196.0
05-30 5974.0
05-31 5710.0
06-01 5608.67
06-02 5248.57
06-03 5590.0
06-04 5853.33
06-05 5786.43
06-06 5992.86
06-07 6034.29
06-08 6208.57
06-09 6125.33
06-10 6092.67
06-11 6064.67
06-12 6028.57
06-13 5670.0
06-14 5346.43
06-15 4948.0
06-16 4856.67
06-17 4724.67
06-18 4666.67
06-19 4755.0
06-20 4752.86
06-21 4684.29
06-22 4699.29
06-23 4760.0
06-24 4793.57
06-25 4742.14
06-26 4505.71
06-27 4317.14
06-28 4182.86
06-29 4097.14
06-30 4099.29
07-01 4253.57
07-02 4188.57
07-03 4050.0
07-04 4007.69
07-05 3983.33
07-06 3910.67
07-07 3787.14
07-08 3785.0
07-09 3804.29
07-10 3882.0
07-11 3938.57
07-12 3804.29
07-13 3697.86
07-14 3595.71
07-15 3575.33
07-16 3551.43
07-17 3532.67
07-18 3597.86
07-19 3562.0
07-20 3549.33
07-21 3474.0
07-22 3422.86
07-23 3377.14
07-24 3445.33
07-25 3386.0
07-26 3425.33
07-27 3402.0
07-28 3376.0
07-29 3372.0
07-30 3375.0
07-31 3324.0
08-01 3325.38
08-02 3356.43
08-03 3382.67
08-04 3372.67
08-05 3370.0
08-06 3334.67
08-07 3329.33
08-08 3380.0
08-09 3358.57
08-10 3383.08
08-11 3384.0
08-12 3364.0
08-13 3407.14
08-14 3379.33
08-15 3362.0
08-16 3382.86
08-17 3403.08
08-18 3367.69
08-19 3321.43
08-20 3299.29
08-21 3310.71
08-22 3243.57
08-23 3313.57
08-24 3302.5
08-25 3240.0
08-26 3267.14
08-27 3232.14
08-28 3167.14
08-29 3162.14
08-30 3119.29
08-31 3063.85
09-01 2930.71
09-02 2847.14
09-03 2837.86
09-04 2784.29
09-05 2740.71
09-06 2720.0
09-07 2769.29
09-08 2752.86
09-09 2748.57
09-10 2695.0
09-11 2675.71
09-12 2666.43
09-13 2623.85
09-14 2588.57
09-15 2557.86
09-16 2546.92
09-17 2510.0
09-18 2487.86
09-19 2465.71
09-20 2444.29
09-21 2413.85
09-22 2363.57
09-23 2371.43
09-24 2366.43
09-25 2397.86
09-26 2382.86
09-27 2367.14
09-28 2307.14
09-29 2269.29
09-30 2326.92
10-01 2247.5
10-02 2150.0
10-03 2073.33
10-04 2031.54
10-05 1987.14
10-06 1987.86
10-07 1977.86
10-08 1942.86
10-09 1924.29
10-10 1948.5
10-11 1999.23
10-12 2004.62
10-13 1936.15
10-14 1913.85
10-15 1995.83
10-16 1991.67
10-17 1836.15
10-18 1653.85
10-19 1599.17
10-20 1581.67
10-21 1775.38
10-22 1906.92
10-23 2279.23
10-24 2100.77
10-25 1990.0
10-26 1825.0
10-27 1925.38
10-28 1899.17
10-29 2009.23
10-30 2061.54
10-31 2080.0
11-01 2201.67
11-02 2226.15
11-03 2094.17
11-04 2034.62
11-05 2005.38
11-06 2496.67
11-07 2350.83
11-08 2182.5
11-09 2090.0
11-10 2020.83
11-11 1966.67
11-12 1908.33
11-13 2187.5
11-14 2480.77
11-15 2540.0
11-16 2534.62
11-17 2270.91
11-18 2192.5
11-19 2134.62
11-20 2259.29
11-21 2442.86
11-22 2387.69
11-23 2201.54
11-24 2126.92
11-25 2211.54
11-26 2871.67
11-27 2800.77
11-28 2667.86
11-29 2725.71
11-30 2659.29
12-01 2290.0
12-02 2282.31
12-03 2619.17
12-04 2313.85
12-05 2292.14
12-06 2290.0
12-07 2499.23
12-08 2492.86
12-09 4081.43
12-10 5020.71
12-11 4877.14
12-12 4697.14
12-13 3597.69
12-14 3220.0
12-15 2863.85
12-16 2938.46
12-17 3099.17
12-18 3435.83
12-19 3075.83
12-20 3141.67
12-21 3275.0
12-22 3438.33
12-23 3326.67
12-24 3025.83
12-25 2892.5
12-26 2822.0
12-27 2679.09
12-28 2707.27
12-29 2675.83
12-30 2769.09
12-31 2628.33

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index