An air quality alert was reported by the NWS San Diego CA on Thursday at 2:47 p.m. in effect until Saturday at midnight. The ...

As San Luis County's Madre Fire rips through California, air quality warnings are now being issued for nearby areas, ...

California’s largest wildfire of the year grew to an estimated 70,801 acres Friday, producing smoke that has affected ...

Poor air quality caused by ozone and other sources prompted the warnings across six states on Thursday and Friday.

Fireworks are happening across the city again this year, which poses two issues–highly concentrated pollution, and uniquely ...

Air quality is uniquely terrible after all those official and illegal fireworks are detonated to celebrate Independence Day.

The Madre fire burning in San Luis Obispo County has grown to become the largest wildfire California has seen this year. It ...

The Los Padres National Forest, Cal Fire in San Luis Obispo, and Bureau of Land Management have been coordinating the ...

The Madre Fire, igniting on July 2, 2025, near Highway 166, has surged to become California's largest wildfire this year, scorching over 52,952 acres as of July 4.

[Update: Thu., July 3, 5:36pm] The Madre Fire has expanded to 52,593 acres as of 5:17 p.m. on Thursday, still with only 5 ...

A massive wildfire scorched 52,593 acres in the southeastern corner of San Luis Obispo County by Thursday evening, forcing ...

An air quality alert is in effect from 5 p.m. July 4 through midnight July 5 due to harmful levels of fine particle pollution ...