ET update from the National Hurricane Center, Gabrielle is forecast to miss Bermuda and the U.S. mainland, but both regions could see potentially life-threatening swells. (National Hurricane Center | National Oceanic and Atmospheric Administration)Tropical Storm Gabrielle is expected to become a hurricane as soon as Saturday night. The National Hurricane Center said Gabrielle is forecast to pass east of Bermuda Sunday night or Monday. If Gabrielle does strengthen to a hurricane, it’d be the second Atlantic hurricane of the season. The 2025 Atlantic hurricane season ends Nov. 30, according to the center.