2:45 p.m. Aug. 31 update:

Officials have delayed the mandatory evacuation order for Brevard County's barrier island by 24 hours — from 8 a.m. Sunday to 8 a.m. Monday — after Hurricane Dorian's projected path took a northward turn.

This evacuation order affects:

• Beachside residents, ranging from Kennedy Space Center southward to Sebastian Inlet (including Merritt Island).

• Mainland residents who live in mobile homes or manufactured housing.

• Residents who live in low-lying, flood-prone areas.

• Residents with special medical needs.

Brevard County Sheriff Wayne Ivey and Don Walker, county spokesman, made the announcement Saturday afternoon at the Emergency Operations Center in Rockledge.

“Hurricane Dorian’s been playing cat and mouse with us for the past five days. And it continues to stall out in the Atlantic,” Walker said.

Officials have yet to make a decision on whether to open public storm shelters across the Space Coast.

If activated, storm shelters will be offered for the general population, families with pets, and people with special medical needs.

Meteorologists now believe Dorian may bring tropical storm-force winds to Brevard on Monday and Tuesday, Walker said.

During a Saturday USA TODAY NETWORK livestream, Ken Graham, director of the National Hurricane Center in Miami, said Brevard looks more likely to face tropical storm winds and coastal flooding than face a hurricane strike.

"We always try to remind people, just a little jog, this is a game of inches, and then you could bring it a little closer to the Space Coast," Graham said.

"With strong enough winds you start pushing that water in. There could be a little coastal flooding as well as this moves north," he said.

Ivey warned residents to remain vigilant and avoid getting lulled into a false sense of security, regardless of Dorian’s shifting cone of uncertainty.

“Right now, a lot of people are saying, ‘Oh, we can take a big deep breath. We dodged a bullet.’ The reality is, we don’t know that yet,” Ivey said.

“If it wiggles instead of waggles, we’re right back in the middle of the cone,” he said.

Original story posted Aug. 30:

A mandatory evacuation order for Brevard County’s barrier island will take effect at 8 a.m. Sunday as Hurricane Dorian approaches.

This evacuation order affects:

• Beachside residents, ranging from Kennedy Space Center southward to Sebastian Inlet (including Merritt Island).

• Residents who live in mobile homes or manufactured housing.

• Residents who live in low-lying, flood-prone areas.

• Residents with special medical needs.

“While I know that no one likes to leave their home, I really believe in my heart that – given the current forecast – this is the best course of action to take to keep everyone absolutely safe,” Brevard County Sheriff Wayne Ivey said in a Friday night Facebook video.

To determine whether a property lies in an evacuation zone, visit https://bit.ly/2wKvjq0 and enter the address in the search engine in the upper left hand corner of the screen.

Emergency officials will likely announce details Saturday regarding the opening of public storm shelters, said Don Walker, Brevard County spokesman.

Storm shelters will be offered for the general population, families with pets, and people with special medical needs.

Watch it live:Hurricane Dorian webcam shows Kennedy Space Center

“Officials are monitoring the track & timing of Hurricane #Dorian, & working out details associated w/shelters & evacuations. Please use this time to prepare your home & gather supplies. Thank you for your patience,” Brevard County Emergency Management officials tweeted Friday night.

Ivey said officials expect Dorian’s tropical storm-force winds to begin battering the Space Coast on Monday night, with hurricane-force winds arriving sometime Tuesday.

“While the storm is a major storm with extremely high wind speeds, it is expected to move slowly over top of us for an extended period of time – expelling somewhere around 18 inches to multiple feet of rain,” Ivey said.

Ivey warned Brevard residents against abandoning pets as Dorian churns closer to the coastline.

“If you dump your pet off out on the side of the road, I’m personally going to walk your butt into our jail. So don’t do it,” Ivey said.

Cancellations:Here's what's closed, canceled in Brevard because of Dorian

Track Hurricane Dorian: See latest forecast, spaghetti models

On Friday night, Dorian strengthened into an "extremely dangerous hurricane," according to the 8 p.m. advisory from the National Hurricane Center.

Winds have increased to 130 mph, making it a category 4 hurricane.

Dorian poses a "significant threat to Florida and the Northwest Bahamas" as it moves to the northwest at 9 mph.

Dorian is expected to make landfall as a category 4 storm, with winds of 140 mph, according to the Hurricane Center.

A storm is classified as a major hurricane when winds reach 111 mph, the threshold of a category 3 hurricane.