A Code Orange Air Quality Action Day has been issued for parts of the Pittsburgh area on Thursday.

Thursday will likely be our first 90+ day of the year. The D.C. area is also under a Code Orange Air Quality Alert.

A hot and humid Thursday will bring a Code Orange Air Quality Alert for parts of the Washington, D.C., area, as temperatures ...

An air quality alert was reported by the National Weather Service on Saturday at 10:18 a.m. in effect until Sunday at ...

Thursday will be a sunny, hot and hazy day in Philadelphia, though a Code Orange Air Quality Alert is in effect for much of ...

Philadelphia faces a code orange air quality alert, with sensitive groups advised to avoid outdoor activities due to ...

Officials say hazy sunshine through low-level Canadian wildfire smoke, high temperatures and light southwest winds will ...

A Code Orange alert is in effect in the Philadelphia area, meaning the air is potentially unhealthy for sensitive groups.

A Code Orange Air Quality Alert has been issued for much of the Philadelphia region on Thursday, according to Pennsylvania's Department of Environmental Protection. The alert is in effect for Bucks, ...