Overview Realtime Historical Map View
Flood Watch
2026-08-03T02:00:00-04:00

* WHAT...Flooding caused by excessive rainfall still possible. * WHERE...Portions of North Carolina, including the following areas, Alleghany NC, Ashe, Stokes, Surry, Watauga, Wilkes and Yadkin, Virginia, including the following areas, Alleghany VA, Amherst, Bath, Bedford, Bland, Botetourt, Carroll, Craig, Floyd, Franklin, Giles, Grayson, Henry, Montgomery, Patrick, Pulaski, Roanoke, Rockbridge, Smyth, Tazewell and Wythe, and southeast West Virginia, including the following areas, Eastern Greenbrier, Mercer, Monroe, Summers and Western Greenbrier. * WHEN...Through late tonight. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Extensive street flooding and flooding of creeks and rivers are possible. Area creeks and streams are running high and could flood with more heavy rain. * ADDITIONAL DETAILS... - Slow moving storm system is resulting in potential for persistent showers and thunderstorms...the storms containing high rainfall rates. This storm system has had a past history of producing localized rainfall amounts in excess of 5 inches in a span of less than 3 hours. If this were to occur, flash flooding would become likely. - http://www.weather.gov/safety/flood

New River At Allisonia, Va 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 4120.83
01-02 3868.33
01-03 3825.45
01-04 3841.82
01-05 3623.64
01-06 3728.18
01-07 3583.64
01-08 3398.18
01-09 3232.73
01-10 5587.5
01-11 4575.0
01-12 4603.33
01-13 5630.83
01-14 4730.0
01-15 4166.67
01-16 5924.17
01-17 5553.85
01-18 4822.31
01-19 4344.62
01-20 3813.85
01-21 3780.15
01-22 3759.17
01-23 3616.36
01-24 3429.17
01-25 4519.17
01-26 4474.91
01-27 4856.36
01-28 4187.67
01-29 4522.5
01-30 3803.08
01-31 6391.67
02-01 6476.67
02-02 4589.17
02-03 4278.33
02-04 5833.85
02-05 5815.38
02-06 4088.46
02-07 6497.69
02-08 6324.62
02-09 4801.43
02-10 4102.86
02-11 3923.85
02-12 4980.0
02-13 6100.0
02-14 7193.08
02-15 6263.33
02-16 6120.0
02-17 6640.91
02-18 5853.64
02-19 5590.83
02-20 5425.38
02-21 5238.46
02-22 5750.0
02-23 5838.46
02-24 8999.23
02-25 8410.83
02-26 6589.17
02-27 5538.46
02-28 5387.69
02-29 4712.5
03-01 4844.62
03-02 4554.29
03-03 4625.71
03-04 4765.71
03-05 5062.14
03-06 5097.86
03-07 4750.0
03-08 4562.14
03-09 4157.14
03-10 4450.0
03-11 4417.14
03-12 4032.14
03-13 4130.0
03-14 4003.57
03-15 3880.0
03-16 3812.14
03-17 3981.43
03-18 3933.57
03-19 3626.67
03-20 3730.71
03-21 3748.67
03-22 3699.29
03-23 3484.67
03-24 3606.0
03-25 4124.0
03-26 4572.67
03-27 4528.67
03-28 4131.33
03-29 4582.67
03-30 4034.0
03-31 3690.71
04-01 4329.33
04-02 4376.0
04-03 3894.0
04-04 3844.67
04-05 3811.33
04-06 3814.0
04-07 3822.0
04-08 3837.33
04-09 4108.57
04-10 3773.33
04-11 3579.33
04-12 4037.14
04-13 8261.43
04-14 7005.71
04-15 5005.38
04-16 5543.08
04-17 5482.31
04-18 4280.0
04-19 4458.46
04-20 6336.92
04-21 7340.71
04-22 4942.86
04-23 4490.71
04-24 4879.29
04-25 6281.54
04-26 5842.86
04-27 5424.29
04-28 4612.14
04-29 5033.57
04-30 4622.14
05-01 4924.0
05-02 4322.14
05-03 3912.14
05-04 3910.0
05-05 4137.33
05-06 4682.67
05-07 5561.33
05-08 5010.0
05-09 4324.0
05-10 3992.0
05-11 3864.0
05-12 3618.0
05-13 3916.0
05-14 5049.29
05-15 4054.29
05-16 4146.43
05-17 4149.29
05-18 4238.53
05-19 5093.2
05-20 4960.21
05-21 6816.8
05-22 8961.43
05-23 5992.67
05-24 5263.33
05-25 6700.67
05-26 5137.33
05-27 4817.33
05-28 7645.33
05-29 5356.67
05-30 5316.67
05-31 4598.0
06-01 4106.0
06-02 3651.33
06-03 3446.0
06-04 3278.67
06-05 3306.43
06-06 3143.57
06-07 3458.57
06-08 3270.67
06-09 3184.6
06-10 4455.53
06-11 4340.67
06-12 3822.86
06-13 3357.14
06-14 3106.43
06-15 2930.47
06-16 2903.87
06-17 2789.87
06-18 3100.2
06-19 3537.64
06-20 3445.0
06-21 3672.86
06-22 3109.29
06-23 3104.86
06-24 3080.0
06-25 2786.93
06-26 2691.21
06-27 2679.79
06-28 2567.29
06-29 2580.5
06-30 2366.21
07-01 2400.71
07-02 2473.43
07-03 3510.36
07-04 3459.71
07-05 3921.33
07-06 4403.07
07-07 3486.93
07-08 3161.43
07-09 3147.86
07-10 2750.0
07-11 2859.53
07-12 2972.67
07-13 2781.43
07-14 3066.67
07-15 2784.0
07-16 2869.29
07-17 2850.0
07-18 2516.0
07-19 2737.33
07-20 2666.67
07-21 2357.33
07-22 2368.0
07-23 2504.0
07-24 2642.0
07-25 2534.67
07-26 2388.67
07-27 2255.33
07-28 3153.33
07-29 2765.33
07-30 2502.0
07-31 2326.67
08-01 2361.23
08-02 2524.67
08-03 2433.57
08-04 3524.29
08-05 2958.57
08-06 2425.38
08-07 2577.86
08-08 2612.31
08-09 2573.08
08-10 2403.08
08-11 2304.29
08-12 2483.57
08-13 2625.0
08-14 2698.57
08-15 2863.57
08-16 3616.92
08-17 2866.15
08-18 2832.5
08-19 3030.0
08-20 3268.46
08-21 2665.38
08-22 3038.83
08-23 2526.43
08-24 2463.85
08-25 2290.62
08-26 2095.0
08-27 1967.86
08-28 1848.57
08-29 1914.29
08-30 1865.29
08-31 1896.14
09-01 1857.79
09-02 2101.14
09-03 2131.57
09-04 1945.57
09-05 1832.86
09-06 2375.0
09-07 3378.57
09-08 2412.86
09-09 2146.43
09-10 2355.0
09-11 2355.0
09-12 2062.86
09-13 2543.14
09-14 2492.43
09-15 2094.64
09-16 1840.79
09-17 2174.57
09-18 4190.64
09-19 3160.0
09-20 2654.14
09-21 2104.43
09-22 2047.92
09-23 2181.21
09-24 1955.07
09-25 1793.5
09-26 1989.21
09-27 2330.29
09-28 2495.71
09-29 2689.29
09-30 3802.31
10-01 2604.62
10-02 2263.33
10-03 2260.77
10-04 3182.31
10-05 2752.14
10-06 2221.79
10-07 2002.14
10-08 2455.43
10-09 2341.43
10-10 2932.57
10-11 3798.57
10-12 8324.29
10-13 3847.14
10-14 2815.29
10-15 2769.31
10-16 3563.86
10-17 2617.79
10-18 2301.43
10-19 2118.57
10-20 1991.71
10-21 1959.23
10-22 1845.38
10-23 1904.62
10-24 3192.31
10-25 2546.46
10-26 2120.57
10-27 2143.43
10-28 2581.43
10-29 4252.86
10-30 4604.86
10-31 3653.43
11-01 3836.29
11-02 2964.64
11-03 2575.57
11-04 2453.57
11-05 2385.14
11-06 2321.69
11-07 2510.77
11-08 2301.0
11-09 2168.46
11-10 2504.69
11-11 2940.46
11-12 6970.77
11-13 5691.15
11-14 3614.64
11-15 2885.79
11-16 3280.14
11-17 3122.71
11-18 2683.0
11-19 2539.85
11-20 2470.83
11-21 2808.21
11-22 2489.69
11-23 2422.21
11-24 2523.46
11-25 2971.54
11-26 2753.21
11-27 2985.57
11-28 3121.69
11-29 2639.29
11-30 3592.86
12-01 3241.43
12-02 4417.86
12-03 4572.31
12-04 3496.43
12-05 3039.29
12-06 2973.08
12-07 2796.92
12-08 4619.23
12-09 3663.57
12-10 3308.57
12-11 3447.86
12-12 3125.71
12-13 2792.86
12-14 2572.31
12-15 3206.15
12-16 4048.46
12-17 4151.54
12-18 3857.69
12-19 3462.31
12-20 3039.17
12-21 3815.0
12-22 4816.15
12-23 4178.46
12-24 4852.31
12-25 5186.15
12-26 4739.23
12-27 5932.5
12-28 5299.17
12-29 6156.36
12-30 5535.0
12-31 4653.33

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index