Hurricane Diane was one of three hurricanes to hit the North Carolina coast during the 1955 Atlantic hurricane season. The system began as a tropical wave over the Atlantic Ocean, which developed into a tropical depression on August 7, 1955. Overall, between 180 and 200 total fatalities were estimated to be a result of Hurricane Diane. Although it was difficult to estimate total damages stemming from Hurricane Diane, it was determined that the floods and other impacts from the hurricane caused $1 billion in damage or almost 10 billion in 2020 dollars, making it the costliest hurricane in U.S. history at the time.

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