Hurricane Irene made a slight shift to the east today, but the hurricane’s projected trek has it crossing the Pamlico Sound Saturday.

After several days of making preparations in advance of Irene, local government officials and emergency-response personnel expect to spend the day watching and waiting — watching to see what Irene does and doesn’t do, and waiting for opportunities to respond to the storm’s effects.

As part of those preparations, two shelters will open in Beaufort County today. Those shelters, which will open at 4 p.m., are located at P.S. Jones Middle School and Washington High School. (For more details on the shelters, see accompanying article.)

“At this time, we feel very confident that the residents in low-lying areas, which is where the mandatory evacuation is listed for, will have sufficient time to evacuate to those shelters,” said Jim Chrisman, acting Beaufort County manager, today. “The question we are getting … is what defines a low-lying area. There’s no simple definition for that. We’ve kind of described it as if you have to buy flood insurance, or if your house or property has ever flooded in any other rain or wind event.”

As of Thursday evening, eastern North Carolina was under a hurricane warning and a flood watch, which were expected to be in place at least through Saturday.

“This event is going to have storm surge and inundation from rainfall,” Chrisman said.

“We are extremely concerned with the areas of Belhaven, Pamlico Beach and Aurora as the proximity of this storm’s track have predictions for storm surge as high as 8-11 feet in those areas,” John Pack, Beaufort County’s emergency-management coordinator, said in a news release issued today.

In Washington, Stewart Parkway is closed and a curfew is in effect until the state of emergency in the city has been lifted.

The following are details of the curfew:

• No person not exempted by this proclamation shall appear in public in the geographic area described in this proclamation between the hours of 10 p.m. and 5 a.m. of any day until the curfew is lifted.

• The curfew applies to all areas within the city limits.

• City employees acting in their official capacity, law-enforcement personnel, emergency-response personnel and other government employees responding in their official capacities are exempt from the curfew.

The sale, consumption, transportation and possession of alcohol beverages in the city are prohibited until noon Monday. Possession and/or consumption of alcoholic beverages may occur on a person’s premises.

The possession, transportation, sale, purchase, storage and use of dangerous weapons, including, but not limited to, rifles, shotguns,

pistols, other firearms or ammunition for any weapon within the city is prohibited until 8 a.m. Monday.

Belhaven has implemented its emergency-operations plan and declared a state of emergency Thursday. The town did not issue an order for residents and visitors to evacuate.

“What we really want to do is to get people to leave. Not many of us are capable of saying that we can last for three days without any basic services. That’s real hard to do,” said Town Manager Guinn Leverett. “There is going to be nothing going on in town. We are looking at 12 hours of 90-mile-an-hour winds or higher. We are also looking at a 6- to 8-foot storm surge. It is hard to think about any trees in town surviving.”

The railroad trestle across the Pamlico River at Washington likely will be closed until sometime Monday, according to an email from the supervisor of the city’s docks. With the trestle closed, boats will be unable to enter or leave Washington’s harbor at the point.