The National Weather Service yesterday upgraded Tropical Storm Carlos to a hurricane, but said it is expected to pass well south of Hawai'i this weekend.

As of 11 p.m. yesterday, Carlos was about 1,535 miles southwest of the southern tip of Baja California. It had maximum sustained winds of 105 mph and was moving west at 6 mph.

A projected five-day track places Carlos several hundred miles south-southeast of the Big Island on Sunday.

Honolulu-based weather forecaster Norman Hui says that if Carlos remains on its current course, it will pass so far south of the state that we are unlikely to feel any effects.

This is Carlos' second go-around as a hurricane. Carlos held minimal hurricane status Saturday before losing strength and being reclassified as a tropical storm.

Meanwhile, behind Carlos, a broad area of low pressure has developed over waters several hundred miles southwest of Manzanillo, Mexico.

The weather service says conditions are favorable for that system to become a tropical depression in the next day or so and that there is a greater than 50 percent chance of it becoming a hurricane.