The Bay Area Air Quality Management District initially issued the alert for Friday but has extended it through the weekend because of a weather system that is forecast to trap smoke near ground level.

The Bay Area Air Quality Management District has extended its Winter Spare the Air Alert into and wood burning ban into Tuesday, with unhealthy air quality expected to continue.

Wood burning is banned in the Bay Area for 48 hours on Sunday and Monday, according to the alert. The ban includes other solid fuels, such as fire logs and pellets in fireplaces, wood stoves and ...