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| 20.0 |
EXTREME FLOOD...LEVEE IS TOPPED AT 19.9 FEET. WIDESPREAD FLOODING THROUGHOUT THE COUNTY NEAR THE RIVER. HEAVY RESIDENTIAL DAMAGES INCLUDING WELLSVILLE. EVACUATIONS NECESSARY. |
| 17.0 |
MAJOR FLOOD...MAJOR FLOODING ALL ALONG THE GENESEE RIVER THROUGHOUT THE COUNTY. COMMERCIAL AND RESIDENTIAL DAMAGES. ROAD CLOSURES. LEVEE CONTINUES TO PROTECT MOST OF WELLSVILLE TO 19.9 FEET. |
| 14.0 |
MODERATE FLOOD...GENERAL FLOODING ALONG THE RIVER IN LOWLYING AREAS THROUGHOUT THE COUNTY. SOME RESIDENTIAL AND COMMERCIAL DAMAGES. THE LEVEE PROTECTS MOST OF WELLSVILLE. |
| 11.0 |
FLOOD STAGE...MINOR FLOOD...BANKS OVERFLOW AND BEGIN TO FLOOD LOWLYING AREAS OUTSIDE THE LEVEEES IN PLACES SUCH AS SCIO AND WHITESVILLE. MINOR DAMAGES. |
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Latitude: 42.122200° N,
Longitude: 77.957500° W,
Horizontal Datum:
NAD83
River Stage
Reference Frame |
Gauge Height |
Flood Stage |
Uses |
| NWS stage |
0 ft |
11 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 |
1470 ft |
1481 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 
