(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 ...

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 ...