A Code Orange is triggered when the air quality index reaches a value of 101 to 150, meaning it’s “unhealthy for sensitive groups.” The reading in parts of the metro area was 115 at 6 p.m. Anything ...

Monday – already expected to see high heat and humidity combine for a heat index that could reach 110 – will also feature ...

The Pennsylvania Department of Environmental Protection has issued a Code Orange Air Quality Alert for the Susquehanna Valley.

Crews worked overnight to clear trees and restore power after metro storms. Afternoon storms could bring hail.

People in Lancaster County are among those being advised to limit outdoor activity today after the state Department of ...

On Tuesday at 3:45 p.m. the National Weather Service reported an updated air quality alert in effect until Thursday at ...

At 8:37 a.m., the NWS issued a statement on the air conditions.

A Code Orange Air Quality alert will be in effect for Philly, Bucks, Montgomery, Chester and Delaware Counties2, 2025.

On Monday, the region is also under an extreme heat warning from the National Weather Service as a large area of high ...

The Pennsylvania Department of Environmental Protection has issued a Code Orange Air Quality Alert for Erie County, signaling ...