Tropical Storm Ernesto threatens Puerto Rico

The storm is moving with sustained winds of 60 mph and could become a hurricane overnight. Officials are concerned about flash floods on the Caribbean Island, with power outages expected. Subscribe to ABC News on YouTube: ABC News Digital is your daily source of breaking national and world news, exclusive interviews and 24, 7 live streaming coverage. Download the ABC News app for the latest headlines and alerts: Watch 24, 7 coverage of breaking news and live events on ABC News Live: Watch full episodes of World News Tonight with David Muir here: Read ABC News reports online: ABC News is the home to the, 1 evening newscast World News Tonight with David Muir, Good Morning America, 20, 20, Nightline, This Week with George Stephanopoulos, ABC News Live Prime with Linsey Davis, plus the daily news podcast Start Here. Connect with ABC News on social media: Facebook: Instagram: TikTok: X: Threads: LinkedIn: