Tropical Storm Gabrielle is expected to strengthen this weekend, according to the National Hurricane Center .
The NHC said Gabrielle is forecast to become a hurricane by Sunday and pass east of Bermuda Sunday night and Monday.
Gabrielle has maximum sustained winds of 50 mph and a minimum central pressure of 1004 mb.
The system is moving west-northwest at a speed of 12 mph.
There are no coastal watches or warnings in effect at this time. However, the NHC advised Bermuda to monitor the progress of Gabrielle.
Eastern tropical wave
A tropical wave is producing showers and thunderstorms off the coast of Africa, according to the NHC.
Slow development of this system is possible as it moves west-northwestward across the central tropical Atlantic.
Formation chance through the next 48 hour