Skip Navigation Link  
NOAA logo - Click to go to the NOAA homepage National Weather Service NWS logo - Click to go to the NWS homepage
Advanced Hydrologic Prediction Service
Image background of Navigation bar Left
Bookmark and Share Navigation Bar End Cap

Hydrograph River at a Glance Download
Little Rock River near George Stage (ft)Iowa Flood CenterLRGI4(plotting HGIRP) Graph Created (10:49PM Apr 14, 2021)Flood Stage is 1311.5 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: NAVD88
NOTE: No forecasts are available for this location

NOTE: Gauge reading may be affected by ice.

NOTE: Graphical forecasts are not available for the Little Rock River near George. During times of high water, forecast crest information can be found in the text products.

Return to Area Map
Downstream Gauge Downstream Gauge - at Rock Valley
Flood Categories (in feet)
Major Flood Stage: 1315.5
Moderate Flood Stage: 1313.5
Flood Stage: 1311.5
Action Stage: 1309.5
Low Stage (in feet): -9999

Historic Crests

(P): Preliminary values subject to further review.

Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to

Zoom Level:16
KML Image
Gauge LocationGauge Map Marker
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
1321.5 the bridge on 230th Street is overtopped.
1320.5 the bridge on Indian Avenue is overtopped, and water reaches the bottom of the bridge on 230th Street.
1319.5 the bridge on Hickory Avenue is overtopped.
1318.5 the bridge on Jackson Avenue is overtopped, and water reaches the bottom of the brige on Indian Avenue.
1317.5 water reaches the bottom of the bridge on Hickory Avenue, and Hickory Avenue begins to flood south of the bridge.
1316.5 water reaches the bottom of the bridge on Jackson Avenue.
1315.5 County Road L14, 230th Street, 240th Street, and Indian Avenue begin to flood, and water overtops the bridges on 250th Street and County Road L14.
1314.5 water reaches the bottom of the bridge on County Road L14 south of George.
1313.5 major agricultural flooding begins. Water reaches the bottom of the bridge on 250th Street, and 250th Street begins to flood east of the bridge.
1311.5 significant agricultural flooding begins.
1309.5 the lower banks overtop with some minor agricultural flooding.
1307.5 the lowest banks near County Road L14 south of George overtop with minor lowland flooding.
About This Location Collapse

Latitude: 43.325400° N, Longitude: 96.097000° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 1311.5 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
(gauge height = flood stage)
Elevation information source
NAVD88 0.00 1311.50 Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  
Resources Collapse
Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
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.
NWS Information
National Weather Service
Sioux Falls Weather Forecast Office
26 Weather Lane
Sioux Falls, SD 57104-0198
(605) 330-4247
Ask Questions/Webmaster
Page last modified: 2-Nov-2020 7:29 PM
Privacy Policy
About Us
Career Opportunities