A change in the storm's path significantly changes Hurricane Sara’s timeline, placing doubts on whether it will survive early landfall.

Follow along here for the latest about Sara on Friday, Nov. 15. A weather system growing more powerful over the central Caribbean was designated Tropical Storm Sara on Thursday, becoming the 18th named storm of what has been a brutal hurricane season for Florida and the Southeast.

Tropical Storm Sara formed Thursday in the Caribbean, and is poised to deliver "potentially catastrophic" rainfall in Honduras in particular. It's not yet clear if it will threaten the Gulf Coast, though it's possible.