A small wildfire that started last Wednesday in the Catalina Mountains has flared up again and grown to about 150 acres, officials said.
The Finger Rock Fire is in an inaccessible location near Pontatoc Canyon, said Heidi Schewel, a Coronado National Forest spokeswoman.
The fire was started July 29 by lightning but was dampened by storms. The fire smoldered but erupted as the vegetation dried out.
Smoke is expected to go into the low-lying areas Wednesday night into Thursday, and Schewel warned that "people should stay indoors."
Rain is predicted Friday afternoon and evening, which "should help control the fire," Schewel said. She said officials are monitoring the blaze, but are ready to fight the fire if needed.
The fire is burning brush and grass and is not threatening any structures, according to authorities.
Officials have closed Finger Rock Trail No. 42 to the public because of the increase in fire activity.
Get the latest updates on the fire from social media below: