In Clearwater, one of the hardest-hit regions, water levels surged to a record 8.6 feet, eclipsing the previous high of 6.8 feet. Similarly, in East Bay, levels peaked at 7.3 feet, surpassing the old record of 6.7 feet.

Storm surge is a bigger killer than wind when a major hurricane hits shore. The areas in the path of Hurricane Helene are more susceptible to surge than other parts of Florida's coast.