Maryland is under a Code Purple Air Quality Alert today, as smoke from several Canadian wildfires creates hazy and unhealthy conditions.

Wildfire smoke will be the big story Friday in the Philadelphia region, especially in the morning, when air quality will ...

What are "Code Red" and "Code Purple" air quality alerts? The Air Quality Index has six color-coded categories, ranging from ...

Maryland is under a Code Red air quality alert Friday due to Canada and northern United States wildfire smoke drifting south, ...

Montgomery County residents are being urged to limit time outdoors Friday as smoke from Canada and northern U.S. wildfires ...

As of Update 1, there are three Weather Events in Be The Final Boss: Gold Rush (increases coin earning rate), Shard Storm ...

Prediction markets and a move toward AI forecasting are starting to put the accuracy of weather predictions at risk. Here’s ...

A maroon Air Quality Index indicates a health warning of emergency conditions, as everyone is likely to be affected.

Philadelphia has declared a Code Purple Air Quality alert on Friday, as wildfire smoke from Canada continues to blanket the ...

Air quality alerts can change quickly during wildfire smoke events. Here’s what Code Orange, Code Red, Code Purple and Code ...

The results were surprisingly good—with a few important caveats. Planning summer travel is hard. Planning it for a busy ...

DIGITS. ONCE WE GET INTO THE AFTERNOON. ALL RIGHT. THANK YOU FOR THAT. LANCASTER COUNTY HOMELESS COALITION DID ISSUE A CODE RED SEVERE WEATHER ALERT STARTING AT NOON TOMORROW THROUGH SATURDAY AT 8 P.M ...