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| 412.0 |
WIDESPREAD RESIDENTIAL FLOODING OCCURS...AND EVACUATIONS ARE NEEDED |
| 410.0 |
RESIDENTIAL AND STREET FLOODING BECOMES WIDESPREAD AS THE COOSA RIVER REACHES 410 FEET AND HIGHER. EXTENSIVE FLOODING OF FARMLANDS ALSO OCCURS |
| 407.0 |
FLOODING OF SOME HOMES IN THE AREA BEGINS AT 407 FEET |
| 402.0 |
FLOODING OF LOW LYING AREAS BEGINS AT 402 FEET. AT 404 FEET FLOODING OF SOME LOW LYING ROADS IN THE AREA BEGINS...AND THE YARDS OF SOME HOMES NEAR THE RIVER BECOME FLOODED |
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Latitude: 33.290360° N,
Longitude: 86.363429° W,
Horizontal Datum:
NAD83
River Stage
Reference Frame |
Gauge Height |
Flood Stage |
Uses |
| NWS stage |
0 ft |
402 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 |
382.45 ft |
784.45 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 
