CHARLESTON, S.C (WCBD) - Most of South Carolina is under a Tropical Storm Warning as Hurricane Helene is making its way toward the Florida Panhandle. Storm Team 2 says the Lowcountry is expecting peak wind gusts to be overnight Thursday into Friday morning. Most will see up to 50 mph but those near the coast can expect up to 60 mph. "VIPERCAST shows areas of rain spreading across the Lowcountry through the day today - coming in waves we'll get some breaks from time to time. It's not going to rain the entire time but the main event I think is going to be late evening into the overnight hours," said meteorologist Josh Marthers. The VIPERCAST shows the main band around Helene begins to lift North over the Lowcountry around 3 a.m. on Friday. The isolated tornado risk increases with the bands rolling off the Atlantic. "Notice the shape of all these - they kinda have a kidney bean look to it. That's an indication on the computer model of rotating supercell structures and those are causing the alarm for the potential of tornadoes," said Marthers. Marthers adds there is a significant threat of tornadoes across lower South Carolina down into southern Georgia. Download Storm Team 2 weather app