The meteorological phenomenon has been moving towards the north/northeast at about 15 kph and a minimum pressure of 969 hectoPascal.
Ernesto is expected to cause numerous damage to the island due to its large size and slow movement.
The electricity company of this British archipelago detailed that some 26,000 homes are without power, more than 70% of the dwellings.
Strong winds, with gusts of more than 170 kph will continue on the island for most of today.
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