Overview Realtime Historical Map View
Flood Watch
2026-08-15T10:00:00-05:00

* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...For Highway 30 counties and areas south to the Missouri border in central Iowa. * WHEN...Through Saturday morning. * IMPACTS...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. * ADDITIONAL DETAILS... - Several rounds of rain have brought 2 to 6 inches of rain to central Iowa this week. Additional rainfall is forecast later tonight into Saturday morning. The combination of saturated soils and high rainfall rates may overwhelm capacity, which will increase flooding potential.

Raccoon River At 63rd Street At Des Moines, Ia 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 2986.5
01-02 2879.25
01-03 3458.0
01-04 2489.25
01-05 2353.0
01-06 2224.75
01-07 2127.75
01-08 2177.75
01-09 2279.75
01-10 2241.0
01-11 2640.67
01-12 2378.33
01-13 2690.0
01-14 2665.0
01-15 3005.0
01-16 2147.0
01-17 2865.0
01-18 2148.0
01-19 1536.0
01-20 2470.0
01-21 2975.0
01-22 3560.0
01-23 3710.0
01-24 3450.0
01-25 3410.0
01-28 3060.0
01-29 2990.0
01-30 3040.0
01-31 1749.5
02-01 1882.0
02-02 2085.5
02-03 2033.5
02-04 1901.0
02-05 1644.5
02-06 1657.5
02-07 1675.5
02-08 3070.0
02-09 1729.0
02-10 2670.0
02-11 2490.0
02-12 2660.0
02-13 2480.0
02-14 2940.0
02-15 2520.0
02-16 2490.0
02-17 1690.5
02-18 1889.0
02-19 255.0
02-20 4722.5
02-21 5851.5
02-22 6440.0
02-23 6552.5
02-24 6848.5
02-25 6683.5
02-26 5610.5
02-27 4654.5
02-28 3999.5
02-29 3870.0
03-01 2893.0
03-02 4419.75
03-03 3438.75
03-04 2516.6
03-05 2222.0
03-06 2035.17
03-07 1883.83
03-08 1794.33
03-09 1776.43
03-10 2444.5
03-11 2530.78
03-12 2034.2
03-13 1891.08
03-14 1737.33
03-15 4046.85
03-16 3807.46
03-17 3756.23
03-18 3658.08
03-19 3387.5
03-20 3379.08
03-21 3476.77
03-22 2794.77
03-23 2896.33
03-24 2688.8
03-25 2547.4
03-26 2449.4
03-27 2457.4
03-28 2486.8
03-29 2565.79
03-30 2408.07
03-31 2476.92
04-01 2609.4
04-02 2476.87
04-03 2449.13
04-04 2705.73
04-05 2771.6
04-06 2676.87
04-07 2667.87
04-08 2539.27
04-09 2241.77
04-10 2424.0
04-11 2583.29
04-12 2290.5
04-13 2398.79
04-14 2424.14
04-15 2577.15
04-16 2805.23
04-17 2514.77
04-18 2552.23
04-19 2709.69
04-20 2600.0
04-21 2802.21
04-22 2744.86
04-23 2795.86
04-24 3002.29
04-25 2653.46
04-26 3034.79
04-27 2987.0
04-28 2953.29
04-29 2855.07
04-30 2758.86
05-01 3234.67
05-02 3180.86
05-03 3209.07
05-04 3534.0
05-05 4133.67
05-06 4099.87
05-07 4217.33
05-08 3532.29
05-09 3279.93
05-10 3461.21
05-11 3690.73
05-12 3581.53
05-13 3527.07
05-14 3320.86
05-15 3389.57
05-16 3228.57
05-17 3341.93
05-18 4232.93
05-19 3779.87
05-20 4281.21
05-21 4356.73
05-22 4253.67
05-23 3998.33
05-24 4101.73
05-25 4961.93
05-26 4910.47
05-27 5053.47
05-28 5679.6
05-29 6915.33
05-30 6414.67
05-31 5789.6
06-01 5558.13
06-02 5166.67
06-03 4699.87
06-04 4182.87
06-05 4028.07
06-06 3818.29
06-07 4414.5
06-08 3911.67
06-09 3544.8
06-10 3466.57
06-11 3909.13
06-12 3481.93
06-13 3294.21
06-14 3280.14
06-15 4460.53
06-16 5832.2
06-17 5373.93
06-18 4264.53
06-19 4077.29
06-20 4469.71
06-21 5688.21
06-22 5280.79
06-23 5030.21
06-24 5395.08
06-25 5772.62
06-26 7980.0
06-27 7512.14
06-28 6666.29
06-29 5199.14
06-30 4397.43
07-01 4727.14
07-02 4369.43
07-03 3899.5
07-04 3735.29
07-05 3610.07
07-06 3537.53
07-07 3847.38
07-08 3715.62
07-09 3540.08
07-10 2836.8
07-11 2577.87
07-12 2824.4
07-13 2468.21
07-14 2499.67
07-15 2290.93
07-16 2028.71
07-17 1864.8
07-18 1749.27
07-19 1617.53
07-20 1687.0
07-21 2043.8
07-22 1852.27
07-23 1723.8
07-24 1519.47
07-25 1340.67
07-26 1293.5
07-27 1311.4
07-28 1376.13
07-29 1763.0
07-30 1602.86
07-31 1835.36
08-01 1670.85
08-02 1360.4
08-03 1416.5
08-04 1241.71
08-05 1085.43
08-06 1002.79
08-07 925.4
08-08 1417.64
08-09 1087.64
08-10 1084.57
08-11 1094.67
08-12 1295.53
08-13 1354.67
08-14 1453.13
08-15 1175.08
08-16 1004.58
08-17 886.67
08-18 469.7
08-19 745.23
08-20 680.54
08-21 1413.15
08-22 1478.75
08-23 1659.64
08-24 1570.46
08-25 1511.92
08-26 1260.14
08-27 1087.86
08-28 1067.79
08-29 1195.07
08-30 1828.29
08-31 1926.62
09-01 1962.79
09-02 2843.07
09-03 2287.76
09-04 2000.29
09-05 1745.19
09-06 1368.07
09-07 2145.29
09-08 1483.23
09-09 2572.79
09-10 2155.36
09-11 2606.93
09-12 1876.43
09-13 1598.14
09-14 1499.79
09-15 1339.14
09-16 1277.79
09-17 1712.85
09-18 1543.23
09-19 1613.85
09-20 1455.64
09-21 1544.14
09-22 1573.5
09-23 1941.23
09-24 1802.64
09-25 1831.15
09-26 1833.01
09-27 1872.79
09-28 1781.62
09-29 1622.94
09-30 1549.62
10-01 1351.58
10-02 2054.46
10-03 2166.69
10-04 2004.31
10-05 2257.79
10-06 2099.68
10-07 2208.47
10-08 2433.49
10-09 2475.8
10-10 2917.97
10-11 3434.11
10-12 3700.25
10-13 3541.15
10-14 3201.46
10-15 3391.5
10-16 1802.83
10-17 2145.62
10-18 1827.29
10-19 1735.21
10-20 1659.07
10-21 1255.54
10-22 1248.69
10-23 1158.69
10-24 1414.86
10-25 1450.0
10-26 1386.36
10-27 1373.21
10-28 1370.36
10-29 1348.0
10-30 1301.64
10-31 1316.79
11-01 1286.43
11-02 1148.23
11-03 1264.71
11-04 1237.0
11-05 1224.0
11-06 1082.92
11-07 1045.54
11-08 1028.69
11-09 1017.31
11-10 1017.31
11-11 1010.69
11-12 984.38
11-13 1046.58
11-14 1143.08
11-15 1109.75
11-16 1132.08
11-17 1095.75
11-18 820.92
11-19 899.2
11-20 797.0
11-21 1411.67
11-22 1440.77
11-23 1412.08
11-24 1440.33
11-25 1372.92
11-26 1374.67
11-27 1393.33
11-28 861.73
11-29 1530.09
11-30 1406.42
12-01 1296.75
12-02 1391.0
12-03 1598.82
12-04 1777.22
12-05 1696.44
12-06 1631.25
12-07 1406.0
12-08 1353.0
12-09 1398.3
12-10 1388.8
12-11 1347.5
12-12 1366.3
12-13 1584.27
12-14 1054.56
12-15 1006.78
12-16 625.14
12-17 3613.88
12-18 4242.86
12-19 4119.0
12-20 691.08
12-21 714.4
12-22 3240.0
12-23 2677.0
12-24 2962.0
12-25 2926.0
12-26 2756.8
12-27 2543.4
12-28 2430.8
12-29 680.0
12-30 2246.6
12-31 2733.25

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index