Hurricane Ian strengthened early Tuesday into a major Category 3 storm as Florida and Cuba braced for strong winds and possible floods.

The hurricane made landfall just southwest of the town of La Coloma in the Pinar del Río province in western Cuba around 4:30 a.m. ET, with maximum sustained winds of 125 mph, according the National Hurricane Center.

A hurricane warning is in place for the Cuban provinces of Isla de la Juventud, Pinar del Río and Artemisa, while a hurricane watch was issued along the west coast of Florida from north of Englewood to the Anclote River, including Tampa Bay.

A number of counties along Florida’s west coast issued evacuation orders ahead of the storm’s arrival. It is not yet clear where exactly Ian will make landfall, but current models suggest it could hit the Sarasota area Wednesday. Ian is expected to bring 6 to 12 inches of rain to central-west Florida, 4 to 8 inches to the rest of the peninsula and 4 to 6 inches to the Keys through Thursday

Sarasota County officials warn water will be shut off for 2 barrier islands

Officials in Sarasota County have warned that water will be shut off for residents on the barrier islands of Siesta Key and Casey Key on Tuesday night and will not return until Hurricane Ian passes.

Water is expected to be shut off in both areas between 5 to 7 p.m. ET, officials said.

It is still unclear where exactly Ian will make landfall, but current models suggest it is on track to hit the Sarasota area Wednesday evening.

Ian knocks out power in Havana and western Cuba

At least 16,000 people in Havana, the capital of Cuba and its largest city, were without power Tuesday morning, the country’s state-run media reported.

In addition, state TV said the rural western provinces of Pinar del Río, which is known for its farming and tobacco, and Artemisa had no electricity.