A shallow marine inversion kept polluted air trapped in the L.A. Basin for days. (Paul Duginski / Los Angeles Times) One good thing about Santa Ana winds: They really clear the air. During the first ...

SOUTH LAKE TAHOE, Calif. — An inversion has formed at Lake Tahoe. Tahoe’s mountaintops are peaking out above the inversion layer Friday morning. Inversions are stable air masses where cooler air is ...

Seattle appears set to get through with a relatively mild 2025 smoke season. Smoke from large fires burning in the eastern ...

The Treasure Valley is experiencing a weak inversion, with impacts to air quality expected to last through the end of the week. Inversions are a reverse of normal behavior. Typically in the summer, ...

SAN DIEGO (KGTV) — The foggy season has arrived in San Diego, often called May Gray and June Gloom. But how does it form, and why does it clear some days and not others? Let’s start with why we see ...

Cool weather and the holiday season may seem like the perfect excuse to cozy up by the fire, but too many blazing yule logs can dirty the air and put some of your neighbors at risk. Hazy skies are a ...

SAN FRANCISCO (KPIX 5) - That wasn't a filter over the San Francisco Bay today, that was particulate matter clogging the skyline. "It's very bad and troubling since there are no forest fires - you can ...

A fire burning in Fresno County has reached the McKinley grove of giant sequoias. Several trees are in flames and specially ...

It has burned 59,573 acres after being active for more than ten years. A fire crew of 2,863 has been working on site and they managed to contain 69% of the fire as of Sunday after ...

Though the Donnell fire containment remained at just 2 percent Tuesday, the Tuolumne County blaze has not spread since Monday, according to the U.S. Forest Service. Monday night, the Forest Service ...