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Local Info
Critical Stages
29' - Action32' - Flood38' - Moderate Flood41' - Major Flood
Big Sioux River - Gauge SXCI4
Sioux City, IA
Lat: 42.52N, Lon: 96.48W
 
Latest Observation
 Updated: 1:30 PM CDT 10/15/25
Stage:10.1 ft
Flow:1.33 kcfs*
* Thousand cubic feet per second
Forecast
hydrograph
Flood Impacts
Historical Crests
Historical crest information is not available.

Data provided by NOAA Advanced Hydrologic Prediction Service

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