A disturbance tracking south of Jamaica Wednesday morning – designated Invest 99L by the National Hurricane Center – is expected to organize into Tropical Storm Sara over the coming days and could strengthen into a powerful hurricane by this weekend as it hangs about off the coasts of Honduras and Nicaragua.

A disturbance in the Caribbean became Invest 99L on Tuesday and will likely become Tropical Storm Sara. FOX 13 Chief Meteorologist Paul Dellegatto says the tropical wave has a 90 percent chance of developing over the next week.

The tropical wave we've been tracking in the Central Caribbean was tagged Invest 99-L on Tuesday afternoon. It will likely become a tropical depression by the end of the week.As the system moves into the western Caribbean Sea,