The US National Hurricane Center (NHC) says a tropical wave located over the eastern tropical Atlantic continues to produce disorganised showers and thunderstorms.
In its 2 am update the NHC says environmental conditions appear conducive for development over the next few days, and a tropical depression could form by early next week as this system moves westward at around 15 to 20 miles per hour over the tropical Atlantic.
It says the disturbance has a 20 per cent chance of cyclone formation in 48 hours and a 50 per cent chance of cyclone formation in 5 days.