Hurricane Irma: Which areas are at risk?

St Martin in the Caribbean is one of the islands to suffer severe destruction

As Hurricane Irma leaves a trail of deadly destruction across the Caribbean, forecasters projecting the path of the powerful storm are warning of further devastation.

Although Irma has been downgraded to a category four storm - from the highest-ranking category five - officials warn that it remains "extremely dangerous" and several areas are still at risk.

The US state of Florida has declared a state of emergency ahead of possible landfall on Sunday.

With some places, such as Barbuda, left "barely habitable" by the hurricane, which areas are now bracing themselves for Irma's ferocity?

• How dangerous is Irma?

• 'It was like a horror movie'

• How does it compare to other category five storms?

• Hurricane Irma: A visual guide

Cuba

• Population: 11 million

• Key facts: one of the world's last planned economies; a producer of sugar, tobacco and coffee, with a big tourist industry; there are fears that crops could be damaged in a country that already has food insecurity

• Hurricane prediction: tropical storm conditions are expected to begin on Friday

There was a calm before the storm in Cuba on Thursday

Bahamas

• Population: 350,000

• Key facts: an archipelago of more than 700 islands and islets, which attracts millions of tourists per year; it relies heavily on food imports from Florida, which could also be badly affected by the storm

• Hurricane prediction: the worst of the high winds is expected to pummel low-lying, south-eastern coastal areas - where a huge evacuation has been ordered. Some areas are thought to be at risk of a storm surge of up to 6m (20ft)

Florida

• Population: 21 million

• Key facts: extremely popular tourist destination, with its economic capital in Miami; surpassed New York to become the third most populous US state in 2014; in 1999, Hurricane Floyd caused the evacuation of hundreds of thousands of people in the state but the storm narrowly missed Florida and came ashore in North Carolina

• Hurricane prediction: warnings that Irma could make landfall in the state on Sunday; about 500,000 people were told to leave south Florida, facing jammed roads and congested airports. The National Weather Service said there was a possibility that South Florida "may be uninhabitable for weeks or months".

Georgia

• Population: 10.3 million

• Key facts: the south-eastern US state is the largest state east of the Mississippi River; it boasts 160km (100 miles) of coastline and an abundance of farmland; in 2016, three people died after a state of emergency was declared in Georgia due to the arrival of Hurricane Matthew

• Hurricane prediction: like Florida, Georgia is forecast to be in the line of the storm and is preparing for strong winds and possible flooding this weekend. The governor of Georgia has issued a mandatory evacuation order for the city of Savannah and other coastal areas

Traffic builds as people leave Florida and travel north through Georgia to avoid the storm

South Carolina

• Population: 4.9 million

• Key facts: the state adjoins the Atlantic and is criss-crossed by dozens of rivers and marshes that are regularly prone to flooding

• Hurricane prediction: Parts of the state could be hit early next week by dangerous winds and heavy rain, forecasters say, but the port city of Charleston is now predicted to escape the worst of the storm. President Trump has declared an emergency in the state

North Carolina

• Population: 10.15 million

• Key facts: also adjoining the Atlantic, it has been estimated that floods and hurricanes cost the state more than $1m a year. It is also estimated that 356,000 people live in flood-hazard areas

• Hurricane prediction: Although forecasters say the threat posed by Irma will decrease as it moves northwards, forecasters say storm surge can still pose a major threat in addition to damage caused by winds and rainfall flooding

Which areas have already been hit?

• The Turks and Caicos Islands: widespread damage, although extent unclear

• Barbuda: the small island is said to be "barely habitable", with 95% of the buildings damaged. Prime Minister Gaston Browne estimates reconstruction will cost $100m (£80m). One death has been confirmed

• Puerto Rico: more than 6,000 residents of the US territory are in shelters and many more without power. At least three people have died

• US Virgin Islands: damage to infrastructure was said to be widespread, with four deaths confirmed

• Haiti and the Dominican Republic: Both battered by the storm, but neither had as much damage as initially feared

British troops have arrived in Anguilla to take part in the disaster relief operation

Are there more hurricanes to come?

Another storm, Jose, further out in the Atlantic behind Irma, was upgraded to a category four hurricane on Friday. Further strengthening of Jose is possible in the next day or so, according to the NHC.

Hurricane Katia, in the Gulf of Mexico, also strengthened and was upgraded on Friday to a category two storm, with winds of up to 160km/h (100mph).

A warning is in effect for the coast of the Mexican state of Veracruz and the storm is expected to make landfall on Saturday.