A future storm named Imelda could affect the Southeast U.S. early next week, but there is plenty of uncertainty. Here are 4 concerns that our expert is watching.

Much uncertainty remained about the track of a band of showers and thunderstorms near Cuba, a National Weather Service forecaster said.

Humberto rapidly strengthened to a hurricane early Friday and is forecast to ramp up into a formidable major (Category 3 or stronger) hurricane this weekend, but it’s the disturbance to Humberto’s west that’s expected to develop and threaten the southeast U.

The Fujiwhara effect is making it difficult for forecasters to predict who could be affected by Hurricane Humberto or Invest 94L. What to know.

MYRTLE BEACH, SC – City officials are bracing for the possible arrival of Hurricane Imelda, a developing storm with an uncertain track that could bring

Tropical wave Invest 94L is expected to become Tropical Storm Imelda, with potential impacts in South Carolina early next week. Heavy rain and strong winds are possible.

Hurricane Humberto formed in the Atlantic Ocean but is not currently threatening land as the former Hurricane Gabrielle moved away from the Azores on Friday, forecasters said. Humberto is about 465 miles (750 kilometers) northeast of the northern Leeward Islands and is moving slowly toward the northwest.