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The National Weather Service said Helene had cleared most of the Western North Carolina area by 11:21 a.m. Friday, but significant impacts including serious flooding were expected to continue into ...
Workers survey a large section of Highway 105 that washed away because of flood waters during Tropical Storm Helene, on the outskirts of Boone, North Carolina, U.S. September 27, 2024.
Flood waters wash over Guy Ford Road bridge on the Watauga River as Hurricane Helene approaches in the North Carolina mountains, in Sugar Grove, North Carolina, U.S. September 26, 2024.
In some places in Western North Carolina impacted by Helene, maps by First Street found roughly 10x the number of properties would have been in a 100-year flood zone category, if FEMA had been allowed to use more comprehensive and modern forecasting. Better maps could have resulted in more insurance coverage and flood prevention measures. [93]
A satellite view shows mud and debris near Old Fort Elementary School, in the aftermath of Hurricane Helene, in Old Fort, North Carolina, on Oct. 2, 2024.
The term 100-year flood indicates that the area has a one-percent chance of flooding in any given year, not that a flood will occur every 100 years. [ 2 ] Such maps are used in town planning , in the insurance industry, and by individuals who want to avoid moving into a home at risk of flooding or to know how to protect their property.