TUCSON, Ariz. — Up to 30 homes in Cochise County were being evacuated as a precaution Thursday night due to erratic winds aiding a lightning-caused wildfire in the area, authorities said.

County Sheriff’s officials said the evacuation for the Cochise Stronghold area was due to a wildfire that has grown to about 200 acres.

Another wildfire continues to burn near the small community of Dragoon and has charred about 5.4 square miles (14 sq. kilometers) and burned one home.

Authorities said that fire could merge with the blaze in the Chiricahua Mountains northeast of Douglas that is forcing the Cochise Stronghold evacuation if they both continue to grow.

The fire near Dragoon, located about 50 miles (80.5 kilometers) east of Tucson, started Wednesday.

It is burning burn tall grass and brush about 2 miles (3 kilometers) southeast of the community listed by the 2010 U.S. Census as having 209 residents.

Residents on the side of Dragoon closest to the fire already have been evacuated, according to sheriff’s officials.

More than a dozen fire engines and two ground crews have been assigned to the larger wildfire and a top-level incident management team has been ordered to take over the firefighting effort.