A new month starts with some "red" and "orange" air quality levels throughout St. Louis, prompting some concerns about ...

The heat and humidity mixed with smoke resulted in a "code orange" alert for Philly and its suburban counties.

The region has been under an Orange Air Quality Alert issued by the National Weather Service since Thursday. This is not the ...

The Pennsylvania Department of Environmental Protection declared a Code Orange Air Quality Action Day for Wednesday, due to ...

A Heat Advisory and Code Orange Air Quality Alert are in effect Wednesday for the Washington, D.C. metro area as temperatures ...

Wildfire smoke pouring into the state from Canadian fires has triggered a red air quality alert, signaling that the air is ...

DC's air quality is Code Orange, making it unhealthy for sensitive groups. Find out how to protect yourself as conditions ...

Smoke concentration is expected to decline as winds shift on Saturday, but it's expected to take days to reach non-alert ...

Orange County Coast and San Diego County Coastal Areas are the focus of a special weather statement issued at 9:13 p.m. on Tuesday by the National Weather Service. The alert is in effect until ...

The India Meteorological Department (IMD) has issued an orange alert for three districts in Himachal Pradesh, warning of ...