THIS ARTICLE IS republished from The Conversation under a Creative Commons license.
Scores of wildfires broke out across North Carolina, South Carolina, and Georgia in early March 2025 as strong winds, abnormally dry conditions, and low humidity combined to kindle and spread the flames.
The fires followed a year of weather whiplash in the Carolinas, from a flash drought over the summer to extreme hurricane flooding in September, and then back to drought again. Storms on March 5, 2025, helped douse many of the fires still burning, but the Southeast fire season is only beginning. Wake Forest University wildfire experts Lauren Lowman and Nick Corak put the fires and the region’s dry winter into context.
Why Did the Carolinas See so Many Wildfires?
Most of North and South Carolina have been abnormally dry or in moderate drought since at least November 2024. Consistently dry conditions through the winter dried out vegetation, leaving fuel for wildfires.
When the land and vegetation is this dry, all it takes is a lightning strike or a man-made fire and wind gusts to start a wildfire.
Hurricanes did flood the region in late summer 2024, but before that, the Carolinas were experiencing a flash drought.
Flash droughts are extreme droughts that develop rapidly due to lack of precipitation and dry conditions in the atmosphere. When the atmosphere is dry, it pulls water from the vegetation and soils, causing the surface to dry out.
In August and September, Tropical Storm Debby and Hurricane Helene caused extensive flooding in the two states, but the Carolinas received little rainfall in the months that followed, leaving winter 2025 abnormally dry again.
How Unusual Are Fires Like This in the Region?
Fires are historically fairly common in the Carolinas. They’re a natural part of the landscape, and many ecosystems have evolved to depend on them.
Carnivorous plants such as Venus flytraps and pitcher plants rely on frequent fire activity to remove shrubs and other plants that would grow over them and block the light. Even some wildlife depend on fire for their habitats and for food from the mix of native plants that regrow after a fire.