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| 20.5 |
This level is about a 10 year flood. |
| 19.0 |
This level is about a 5 year flood. |
| 18.0 |
Some homes in Martintown are affected by floodwaters. There is widespread lowland and agricultural land flooding. |
| 17.5 |
Downstream in Winslow Illinois...Highway 73 is flooded. |
| 16.2 |
This level is about a 2 year flood. |
| 16.0 |
Floodwaters get into the back yard of at least one home in Martintown. |
| 13.5 |
Floodwaters affect Martintown Road and West River Road in the Martintown area. Upstream in the Browntown area...floodwaters affect Highway MM and West Indies Road. |
| 13.0 |
Tillable farm land is flooded. |
| 11.0 |
There is minor lowland flooding. |
| 9.5 |
There is minor...non-damaging lowland flooding. |
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Latitude: 42.509000° N,
Longitude: 89.799000° W,
Horizontal Datum:
NAD83
River Stage
Reference Frame |
Gauge Height |
Flood Stage |
Uses |
| NWS stage |
0 ft |
13.5 ft |
Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps |
| Vertical Datum |
Elevation
(gauge height = 0) |
Elevation
(gauge height = flood stage) |
Elevation information source |
| NAVD88 |
N/A |
N/A |
Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps |
| NGVD 29 |
N/A |
N/A |
Older USGS topographic maps, NGVD29 benchmarks |
| MSL |
N/A |
N/A |
Older USGS topographic maps, MSL benchmarks |
| Other |
757.83 ft |
771.33 ft |
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Hydrologic Resources
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Additional Resources
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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. |
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NWS Information |
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weather.gov 
