Hurricane Ivo on Path to Hit Mexico's Baja Peninsula

Hurricane Ivo slowed its forward motion Thursday as it began to curve toward Mexico's Pacific coast, the National Hurricane Center said.

The storm, which was upgraded late Wednesday to a Category 1 hurricane, had sustained winds of about 75 mph, with gusts of 90 mph. It was moving to the north-northwest at about 7 mph, down from 13 mph on a west-northwest track Wednesday night.

Click here to track Hurricane Ivo.

At 5 a.m. EDT, it was centered roughly 520 miles south-southwest of Cabo San Lucas at the tip of the Baja California peninsula. It was forecast to take a clockwise turn toward the Baja.

The Miami-based Hurricane Center said that Ivo was likely to strengthen through midday Thursday and then weaken into a tropical storm before hitting land Sunday. But it warned that the intensity forecast for the weekend "is highly uncertain" and urged people in the peninsula to closely monitor Ivo.