Miami, August 31 (RHC)-- Hurricane Dorian is an extremely dangerous storm and could reach a Category 5 early Sunday morning, according to the Miami-based National Hurricane Center.

As of 8 p.m. Eastern on Saturday, Hurricane Dorian was still moving west at just 8 mph, per the National Hurricane Center's updated advisory.

At that time the storm remained a Category 4 with maximum sustained winds of 150 mph -- only 7 mph shy of Category 5.

"Some fluctuations in intensity are likely," the hurricane center said, "but Dorian is expected to remain a powerful hurricane during the next few days."

A hurricane warning remained in effect for the northwestern Bahamas, and a hurricane watch was in effect for the Bahamas' Andros Island, the center said. 

A stretch of Florida's coast between Deerfield Beach and Sebastian Inlet was still under a tropical storm watch.