ORLANDO, Fla. — Wildfires wreaked havoc in Central Florida on Sunday, shutting down Interstate 95 and other major roads, forcing the evacuation of hundreds of coastal residents and keeping firefighters, deputies, relief workers and state troopers on alert throughout the night.

More of the same is expected today, as high winds, dry conditions and record-high temperatures fuel the blazes in Volusia and Brevard counties.

Winds of up to 40 mph stoked the fires that burned nearly 3,000 acres in the two counties, forcing authorities to evacuate at least 400 homes in Cocoa, Palm Bay and Daytona Beach, where residents had little time to pack up important belongings and flee. Shelters were opened in both counties.

“It’s pretty scary,” said Joan Good, as she waited Sunday afternoon to be told if she needed to leave her home in Cocoa. About 200 homes near Good were evacuated because of a 100-plus-acre fire that shut down State Road 524 between Cox and Friday roads.

“I have all my stuff packed up, and I’m ready to go, but I’m not going to go unless they tell me to because I have my two dogs, and I don’t know where to go. Looking out my window, I can see smoke, and it’s all charred. We’re in a wooded, residential area, so it’s not a good area to have a fire in.”

The fires started in the early afternoon and grew worse throughout the night as more homes were evacuated, and officials shut down more roads.

While fire threatened hundreds of homes, there were no reports of widespread damage. At least one home and one commercial building in Brevard County were damaged.

In Melbourne, temperatures reached a record high of 95 degrees on Sunday. Daytona Beach set a record Saturday with a high of 94. Above-normal temperatures, coupled with low humidity and gusting winds, caused the wildfires to spread quickly.