(SOUTHERN COLORADO) — Southern Colorado was covered in fog over the weekend, and while it’s not an uncommon phenomenon, you may be wondering how fog forms in the first place? There are several types ...

Add Yahoo as a preferred source to see more of our stories on Google. A cyclist makes his way through foggy conditions at Concepcion Park in San Antonio. (Jerry Lara/San Antonio Express-News) Freezing ...

What's behind all the fog slamming Sacramento and the Central Valley this winter? Known as tule fog, the weather phenomenon has hit the Central Valley with day after day of thick morning fog, ...

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 ...

Sacramento and other Central Valley communities were facing hazardous driving conditions on Thursday morning due to dense fog. The National Weather Service issued a dense fog advisory at 12:10 p.m.

In recent weeks California's Central Valley has been blanketed with a thick dense fog known as tule (TOO-lee) fog, causing massive vehicle pileups along Interstate-5 along Highway CA-99. It's a type ...