By Tuesday, the center already had begun warning about the increased risk for tornadoes as Helene moves up through the U.S. Edwards is among the forecasters who say Helene's huge size increases the risk of tornadoes, creating more worries for people far away from the coast where the storm first arrives.

The National Weather Service provided data it collected on tornado formations that occurred during the hurricane in South Carolina.

Two tornadoes touched down in Marion and Horry County on Friday as the two counties felt the effects of Helene, the National Weather Service said. The first tornado, an EF0, touched down at 7:23 a.m.

Wadmalaw Island was hit by two lower-end tornadoes that spun up within Hurricane Helene’s outer rain bands last week. The first was an EF-0 that struck the southern Charleston County community with maximum winds of 80 mph,