Missouri River at Sioux City

Last updated: Jul 4, 2025, 1:32 AM UTC
No watches, warnings or advisories are in effect for this area.

Flood Impacts 🅘

  • 39 - Water reaches portions of 4th St in South Sioux City near the gauge location under the Hwy 20 bridge.
  • 36 - Extensive urban flooding in lower lying portions of Sioux City begins.
  • 35 - The levee protecting various structures in parks and memorials on the Iowa side of the river is overtopped.
  • 33 - Additional recreational areas and some pasture land along the river begin to flood.
  • 32 - Hamilton Blvd under I-29 is flooded.

Gauge Info

Coordinates 42.4858, -96.4136
RFC MBRFC
State NE
WFO FSD
County Dakota
Data Provider(s)
U.S. Geological Survey 06486000
U.S. Army Corps of Engineers Website

Gauge Location

Recent Crests

1. 32.23 ft on 06-24-2024
2. 13.76 ft on 09-21-2023
3. 12.87 ft on 08-16-2022
4. 18.12 ft on 04-01-2020
5. 25.92 ft on 10-21-2019

Historic Crests

1. 35.25 ft on 07-21-2011
2. 32.23 ft on 06-24-2024
3. 30.77 ft on 06-25-1984
4. 30.65 ft on 02-19-1971 1
5. 30.52 ft on 04-03-1960 1

Vertical Datum Table

type NAVD88
major Flooding 1093.42 ft
moderate Flooding 1090.42 ft
minor Flooding 1087.42 ft
action 1082.42 ft
Latest Value 1068.88 ft
Gauge Zero 1057.42 ft

Gauge Photos

Photo 1 of 2

Upstream View (IA Side 9/25/2023)

Probability Information

Photo 1 of 3

Unique Local Info

USGS 7-Day Streamflow Historical Comparison USGS WaterWatch Webpage

USACE Missouri River Basin Weekly Update

How low could the river get?

Crest History values prior to 1981 from gauge location 227 ft downstream and at different datum. Values from prior to 1957 from pre-regulation period when Gavins Point Dam was completed. Peak stage pre-regulation of 44.28 ft in April 1952.

Collaborative Agencies

The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.

WFO Information

Weather Forecast Office
Sioux Falls
26 Weather Lane
Sioux Falls, SD 57104-0198
Official Homepage