The Navarro Fire was sparked by lightning around 10 p.m. Saturday, July 11, about 14 miles west of Sahuarita. It has burned 1,100 acres as of Sunday around noon.

A lightning storm south of Tucson sparked a wildfire about 14 miles west of Sahuarita Saturday night. 

The Navarro Fire started around 10 p.m. Saturday and has burned about 1,100 acres as of Sunday afternoon with 0% containment, according to a Arizona Department of Forestry and Fire Management spokeswoman.

"Due to safety concerns; poor access and extreme fire behavior, firefighters had to monitor the fire overnight," the department said in a news release Sunday morning. "The wind-driven fire is burning though a heavy fuel load of grass and brush and is moving to the northeast. It is active on all sides."

Firefighters gained access and started to suppress the fire Sunday morning, the department said. Five hotshot crews, several aircraft and 10 engines are working the fire, totaling about 150 personnel.

Rain on Sunday afternoon slowed the fire activity, said Tiffany Davila, spokeswoman for the department. Some spot fires caused by outflow winds were controlled quickly, she said.

On Sunday, fire crews provided structure protection to three Cisco Ranch structures on the west side of the fire.

The next closest structures are about 100 homes three miles west of the fire, Davila said. Those homes were not impacted by the fire Sunday, she said. If the fire threatens the homes, the Pima County Sheriff's Department will issue pre-evacuation or evacuation notices to residents.


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Contact reporter Stephanie Casanova at scasanova@tucson.com. On Twitter: @CasanovaReports