South Platte River near Weldona

1. 19.00 ftNear record flooding occurs.
2. 15.50 ftExtensive inundation of roads and structures occurs along the river.
3. 12.50 ftThere is extensive flooding of agricultural land. Flooding threatens roads and structures along the river.
4. 11.00 ftThere is moderate flooding of agricultural land along the river.
5. 10.00 ftThere is widespread lowland and meadow flooding. Irrigation works are impacted.
6. 8.00 ftThe river is out of its banks and into fields and meadows.

Chance of flooding, September to November

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 23, 2026.

Most recent crests

• June 9, 2021: 5.38 ft
• March 21, 2020: 3.75 ft
• June 24, 2019: 5.86 ft
• May 20, 2018: 4.74 ft
• May 20, 2017: 7.36 ft
• June 15, 2016: 7.06 ft
• May 12, 2015: 10.87 ft
• June 4, 2014: 9.09 ft
• September 14, 2013: 19.20 ft
• July 9, 2012: 3.58 ft

• UpstreamSouth Platte River at Kersey
• DownstreamSouth Platte River at Fort Morgan
• South Platte River at Balzac
• South Platte River
• South Platte River at Atwood
• Cache La Poudre River (CO) at Greeley
• Cache La Poudre River (CO) at Greeley
• Big Thompson River (CO) at La Salle

Forecasts by the Missouri Basin River Forecast Center. Forecasts are issued as needed during times of high water, but are not routinely available. Stage may be affected by ice during winter months.

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service.