CANON CITY — A lightning-sparked wildfire near Cañon City that has so far charred about 500 acres is 10 percent contained.

Firefighters took advantage of more favorable weather conditions Saturday to dig lines around the blaze about 6 miles northeast of the city, but hot and windy conditions are expected Sunday.

The wildfire, which was reported Monday, grew to just under a square mile by Friday from 60 acres reported earlier.

A pre-evacuation notice was issued for 16 homes in the Red Rocks subdivision Friday night, alerting residents to be ready to flee if needed. That notice remains in effect.

The fire is burning in steep, rugged terrain on Bureau of Land Management property in Phantom Canyon.