When air quality is ranked "unhealthy for vulnerable groups" it means PM 2.5 are at levels that can cause problems for people ...

An air quality advisory is in effect for the Bay Area on Friday, as smoke from wildfires burning in far Northern California ...

Air quality is unhealthier-than-average for some people Thursday as winds are blowing wildfire smoke across the Northern ...

SAN FRANCISCO — The Bay Area Air District on Thursday issued an air quality advisory due to smoke from wildfires burning in ...

Prepare for soaring temperatures near 100° and smoky air. Avoid the outdoors during peak heat hours for better air quality ...

Wildfires are burning in Northern California and Southern Oregon. A Spare The Air Alert day is in effect Friday due to poor ...

Smoke from wildfires in Northern California and southern Oregon has settled over Northern Nevada and is worsening air quality across the region. Air quality in the Reno-Sparks area Thursday morning ...

Firefighters are working the uncontained Green Fire in the Shasta-Trinity forest as 110-degree heatwave hits the Redding area. Here's what we know.

California's Madre Fire sparked in the late evening of July 3 but has since grown to the largest in the state this year by the Fourth.

The 'Bert Fire' broke out in Valencia, Santa Clarita on Tuesday, rapidly spreading to 30 acres near the 29000 block of The ...

Firefighters are working the uncontained Green Fire, Horse Fire and Helena Fire in the Shasta-Trinity forest. Here's what we ...