Hurricane Irma, a category four storm is heading towards the Caribbean Islands, Florida and even Puerto Rico.
The hurricane had sustained winds of up to 220km/h (140mph) and was likely to strengthen in the next 48 hours, the US National Hurricane Center (NHC) said.
Warnings have been issued in the Island and the US state of Florida and Puerto Rico already declared a state of emergency.
Irma was projected to hit the Leeward Islands, causing storm surges, life-threatening winds and torrential rain.
Irma was set to reach the Leeward Islands, east of Puerto Rico, by late Tuesday or early Wednesday (local time), the centre added. The storm was moving at a speed of 20km/h (13mph).
It may cause rainfall of up to 25cm (10in) in some northern areas and raise water levels by up to 3m (9ft) above normal levels, the NHC said.
This news comes as residents in Texas and Louisiana are reeling from the effects of Hurricane Harvey, which struck as a category four storm, causing heavy rain and destroying thousands of homes.