CLINTS WELL, Ariz. - The lightning-caused Tank Fire, first reported Wednesday, is burning just a couple miles northeast of the junction of Lake Mary Road and State Route 87.

As of Thursday, the fire was burning 170 acres.

According to officials, a pre-evacuation notice was issued for residence three miles north of Lake Mary Road and SR-87.

The fire was zero percent contained as of Thursday morning with smoke expected to impact Happy Jack, Clints Well and the surrounding area.

Officials say there's approximately 100 structures threatened by the fire.