Units from both Northern Barossa and Light CFS groups are responding to a grass fire in a paddock on Belvidere Road in Nuriootpa, near the Sturt Highway.
It has caused an electricity outage in Nuriootpa affecting 955 customers.
SA Power Networks crews are working on restoring power.
Traffic is continuing to flow on the Sturt Highway, however smoke is drifting into the Nuriootpa township.
