Maps show Hurricane Ernesto's path and forecast as it heads toward Bermuda (2024)

Hurricane Ernestobecame a Category 2 storm Thursday night and was moving away from the Caribbean and heading in the direction of Bermuda, the National Hurricane Center said as it issued a hurricane warning for the British territory. Forecasters expected Ernesto to take three days to get there and said the storm would probably grow stronger along the way.

Ernesto was about 410 miles south-southwest of Bermuda and heading north at 14 mph as of 11 p.m. EDT Thursday, with maximum sustained winds of 100 mph, the Miami-based hurricane center said. Forecasters expected the center of the storm to approach Bermuda late Friday night and pass either near or directly over Bermuda on Saturday, after strengthening over the next day or two and growing substantially in size.

Ernesto strengthened from a tropical storm into a hurricane Wednesday morning while moving north of Puerto Rico, as forecasters had predicted. The hurricane center upgraded Ernesto once its maximum sustained winds reached 75 mph, and said it could reach "near major hurricane strength" before reaching Bermuda.

Ernesto brought heavy flooding to Puerto Rico and the Virgin Islands while gaining strength as it went through the Caribbean. Torrential downpours blanketed parts of Puerto Rico for much of Wednesday, dumping nearly 10 inches of rain, swelling rivers and flooding roads.

In the process, Ernesto knocked out power to about 750,000 homes and businesses in Puerto Rico.

Puerto Rico's electricity provider, LUMA Energy, saidabout 258,000 customers didn't have power at 9 p.m. EDT on Thursday — roughly 17% of all customers they service across seven different areas. That number was down from 470,000 outages reported in the morning, and represented a significant drop from when service cuts peaked on Wednesday afternoon, the providersaid.

According to the utility tracker PowerOutage.us, just over 25,000 customers in the U.S. Virgin Islands had no electricity Thursday night, down from a peak of about 46,000 on Wednesday.

Ernesto intensified dramatically during its course through the Caribbean earlier this week, but at the time of the latest hurricane advisory, wind speeds had more or less plateaued since the night before.

A major hurricaneis one that reaches Category 3 status on the Saffir-Simpson scale, which ranks hurricanes based on their maximum sustained wind speeds and, relatedly, their capacity to cause serious damage. Hurricanes that fall within Category 1 or 2 on the scale are still dangerous and destructive. Ernesto's sustained winds would need to reach at least 111 mph to meet criteria for Category 3.

CBS News senior weather and climate producer David Parkinson said Thursday that Ernesto making landfall in Bermuda was "still in the realm of possibility, but it's more likely the center of the storm will stay about 50 miles offshore."

Ernesto became the fifth named storm of the 2024 Atlantic hurricane season when it formed Monday on a fast-moving path to the Caribbean. The storm came on the heels of Hurricane Debby, which lashed parts of the southeastern United States last week with disastrous flooding and severe weather that ultimately touched much of the East Coast. Ernesto isn't expected to strike the U.S. mainland, the hurricane center said.

Rainfall from Ernesto was expected to begin in Bermuda later on Thursday, according to the hurricane center, which warned of the potential for flash flooding on Friday and through the weekend.

"Ernesto is expected to produce total rain accumulations of 4 to 8 inches in Bermuda with isolated maximum amounts up to 12 inches," the center said. "This rainfall may result in considerable life-threatening flash flooding."

It also warned of "dangerous storm surge" and "significant coastal flooding on Bermuda in areas of onshore winds," as well as "large and destructive waves."

A prolonged period of strong winds and storm surge is expected on Bermuda beginning late Friday, and residents were urged to rush to complete their preparations for the storm.

Swells fueled by Ernesto were affecting parts of the northern Leeward Islands, the Virgin Islands, Puerto Rico, the Dominican Republic, the Turks and Caicos Islands, and the southeastern Bahamas on Thursday morning. Forecasters said those swells would spread toward the rest of the Bahamas and Bermuda later in the day.

"Even though Ernesto is forecast to remain well offshore of the U.S. East Coast, swells generated by the storm are expected to reach the area late this week and into the weekend," said the hurricane center. "Beach goers should be aware of a significant risk of life-threatening surf and rip currents, and stay out of the water if advised by lifeguards."

Dangerous surf conditions and rip currents were also possible on the Virgin Islands, Puerto Rico, the Dominican Republic, the Turks and Caicos and the Bahamas during the next few days, the center said.

Editor's Note: An earlier version of this story reported 975,000 customers had lost power in Puerto Rico, but that was the number of customers who still had power, according to Puerto Rico's electricity provider.

In:
• Caribbean
• Virgin Islands
• Tropical Storm
• Severe Weather
• Puerto Rico
• Hurricane
• National Hurricane Center