FRESNO, Calif. (KFSN) -- Dense Tule fog has settled across the valley floor for several weeks this season, reducing visibility and contributing to dangerous driving conditions, including pileup ...

The Tule fog has a long history of putting the San Joaquin Valley under conditions ripe for catastrophe, a situation made deadly over Fresno’s history when drivers haven’t taken precautions on Highway ...

An atmospheric phenomenon occurring over much of California was unmistakable in satellite imagery in late autumn 2025. Fog stretching some 400 miles (640 kilometers) across the state's Central Valley ...

Hours after a massive vehicle pileup shut down Highway 99 near Earlimart in dense tule fog, southbound lanes fully reopened, and Caltrans began guiding northbound traffic at Cecil Avenue as of 2:30 ...

A massive fog bank that has been blanketing much of California’s Central Valley with low-lying clouds since Thanksgiving time has prompted fears online of a mysterious and harmful “radiation fog,” but ...

A massive chain‑reaction crash involving as many as 150 vehicles shut down both directions of Highway 99 in Central California on Saturday morning, trapping drivers in near‑zero visibility and sending ...

In the Central Valley, the tule fog is back, and people are over it. After a record-breaking stretch in December that brought fog for more than 22 consecutive days - the longest since the 1970s ...

While California's Central Valley was experiencing a persistent form of "radiation fog" in late 2025, the fog wasn't radioactive. In fact, radiation fog is the most common type of fog in most of the ...

Add Yahoo as a preferred source to see more of our stories on Google. Dense Tule fog has settled across the valley floor for several weeks this season, reducing visibility and contributing to ...