Humberto is now a hurricane and the National Hurricane Center warns risks of impacts to Southeastern coast from two looming storms.

By Friday afternoon, Humberto had become a major Category 3 hurricane with sustained winds of 115 m.p.h. In cases when a storm forms near shore and then rapidly intensifies, as Otis did near Acapulco, officials and residents can have little time to prepare.

A new weather buzzword is storming social media as Hurricane Humberto may do a giant dance with another tropical cyclone in the Atlantic.

At 5 p.m. Friday, the National Hurricane Center issued an advisory stating that Category 3 Hurricane Humberto is in the Atlantic Ocean, 430 miles northeast of the Northern Leeward Islands. The hurricane, with maximum sustained winds of 115 mph, is moving west-northwest at 5 mph.

Humberto is about 465 miles northeast of the northern Leeward Islands and is moving slowly toward the northwest. It is expected to strengthen substantially over the weekend to become a major hurricane, the Miami-based U.S. National Hurricane Center said.

According to the National Hurricane Center's 11 p.m. Friday advisory, Category 3 Hurricane Humberto is in the Atlantic Ocean, 430 miles northeast of the Northern Leeward Islands. The hurricane is moving west-northwest at 5 mph, with maximum sustained winds of 115 mph.

As the National Hurricane Center tracks Hurricane Humberto, it's watching a tropical wave likely to become Tropical Storm Imelda.

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