Storm passing into warmers waters 800 miles from Caribbean

Tropical storm Bertha has been officially reclassified as a hurricane after passing through warmer waters 800 miles east of the Caribbean.

Bertha, has moved across the Atlantic since forming off the Cape Verde islands near Africa on Thursday, but it is still too early to say whether it will make landfall, according to the US National Hurricane Centre.

Forecasters say the storm is heading west-northwest at a speed of 17mph.

It was original recognised as the second Atlantic tropical storm of the year after tropical storm Arthur which made landfall in south-eastern Mexico on June 1. Storms are classified as hurricanes when sustained windspeeds pass 74mph and Bertha’s winds are now in excess of 75mph.