A warming trend forecast for the Bay Area this week prompted air district officials to issue a Spare the Air alert for Tuesday and Wednesday.
High temperatures and light winds, combined with vehicle exhaust, will result in smog, the Bay Area Air Quality Management District said in an alert sent Monday.
The alert will be effective Tuesday through Wednesday.
The National Weather Service is forecasting high temperatures for inland areas in the 90s to near 100, Tuesday thraough Friday.