Residents on Lower and Eastern Eyre Peninsula are being asked to prepare ahead of a cold front which will move through parts of the state on Saturday.
The Bureau of Meteorology issued a weather warning on Friday afternoon with north to northwesterly winds forecast to increase during Saturday morning and damaging winds in parts of the warning area.
Areas which may be affected include Port Lincoln, Cleve, Kingscote and Victor Harbor.
Winds averaging 45 to 55 km/h and possibly reaching 55 to 65 km/h are forecast in some parts with wind gusts of about 90 to 100 km/h also possible across the warning area during the day.
Winds are expected to ease during the afternoon in western parts and in the late evening in central parts.
The State Emergency Service has advised people to prepare themselves, including moving vehicles under cover or away from trees, secure any loose items around your house or property and to stay indoors and away from windows while conditions were severe.