Little Rock River near George
Future / Actual / Minor
OWP 2.0 WWA Modal Title
01/11/2021, 10:04 PM UTC through 01/11/2021, 10:04 PM UTC
Sender
Sent
- Upstream gauge unavailableWarning: no valid ratings curve available. Transformations to and from FEET/CFS/KCFS will not happen.
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Observed (OBS) 06/10/2025 10:45 AM CDTCATEGORY STAGE 
Major Flooding 1315.5 ft Moderate Flooding 1313.5 ft Minor Flooding 1311.5 ft Action 1309.5 ft Reliability of the Forecast:
NOTE: Forecasts are not available. Only observed stages are available for this point.
No forecasts are available for this location
National Water Model Hydrograph
Official NWS streamflow forecasts are produced by NWS hydrologic forecasters for river gauge locations using hydrologic models which are calibrated to that location. This process considers additional guidance and information, including local expertise and experience, to produce the best forecast possible. The NWM output provides supplemental guidance to NWS forecasters and should not be considered an official NWS river forecast.
Flood Impacts
- 1321.5 - The bridge on 230th Street is overtopped.
- 1320.5 - The bridges on Indian Ave and Ibex Ave are overtopped, and water reaches the bottom of the bridge on 230th Street.
- 1319.5 - The bridge on Hickory Ave is overtopped.
- 1318.5 - The bridge on Jackson Ave is overtopped, and water reaches the bottom of the brige on Indian Ave.
- 1317.5 - Water reaches the bottom of the bridge on Hickory Ave, and Hickory Ave begins to flood south of the bridge.
Gauge Info
| Coordinates | 43.3254, -96.0970 |
| RFC | MBRFC |
| State | IA |
| WFO | FSD |
| County | Lyon |
| Data Provider(s) | |
| Iowa Flood Center | Iowa Flood Center |
Gauge Location
Recent Crests
| 1. | 1318.70 ft | on 06-22-2024 |
| 2. | 1306.69 ft | on 03-25-2023 |
| 3. | 1304.08 ft | on 07-08-2020 |
Recent Crests
| 1. | 1318.70 ft | on 06-22-2024 |
| 2. | 1306.69 ft | on 03-25-2023 |
| 3. | 1304.08 ft | on 07-08-2020 |
Historic Crests
| 1. | 1318.70 ft | on 06-22-2024 |
| 2. | 1306.69 ft | on 03-25-2023 |
| 3. | 1304.08 ft | on 07-08-2020 |
Historic Crests
| 1. | 1318.70 ft | on 06-22-2024 |
| 2. | 1306.69 ft | on 03-25-2023 |
| 3. | 1304.08 ft | on 07-08-2020 |
Vertical Datum Table
| type | NAVD88 |
|---|---|
| major Flooding | 1315.50 ft |
| moderate Flooding | 1313.50 ft |
| minor Flooding | 1311.50 ft |
| action | 1309.50 ft |
| Latest Value | 1302.21 ft |
| Gauge Zero | 0.00 ft |
Probability Information
No Images Available
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.
Resources
Hydrologic Resource Links
- River Forecast Centers
- NWS Sioux Falls Flooding Resource Page
- NOHRSC Snow Information
- USACE Missouri River Water Management
- USGS National Water Dashboard
- FEMA Flood Insurance Information
- South Dakota Flood Information System
- Iowa Flood Information System
- Missouri River Flood Information System
- Minnesota DNR
- Nebraska Real-Time Flood Forecasting
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