ATLANTA -- Smoke from wildfires in the North Georgia wildfires continued to drift into the metro Atlanta area on Thursday.

Residents across the metro begin seeing -- and smelling -- the smoke on Wednesday.

11Alive Chief StormTracker Chris Holcomb explained that there are multiple sources of the smoke.

Fires in Rabun County, which authorities suspect was started by an arsonist, wree responsible for much of the smoke Wednesday. A fire in Rouge Ridge in northwest Georgia that has burned more than 10,000 acres is also blowing smoke our way.

The smoky skies helped move Atlanta's air quality to a Code Red on Thursday.

Sensitive groups including individuals with asthma, lung or heart disease, children, older adults and pregnant women should take precautions to avoid exposure to smoke, according to forestry officials.

Conditions could change based on weather, wind direction and fire activity over the next few days.

The extreme dry weather, low humidity, and current fire danger rating make outdoor burning an unsafe act, according to Johns Creek Fire Marshal Chad McGiboney. In that community, authorities temporarily prohibited outdoor burning due to current weather conditions.

PHOTOS: Smoke all over metro Atlanta

Photos | Rough Ridge wildfire