Tule fog is choking California’s Central Valley. Here's how it forms and why it's forming less often despite heavy fog this ...

Discover the incredible beauty of rime ice. Rime ice forms when supercooled fog or cloud droplets freeze instantly onto ...

Dense tule fog forms on clear, calm nights when the ground loses heat rapidly. And forecasters warn that the danger will ...

We saw some thick fog develop along the Ohio River in the Downtown Louisville area this morning, so let's look at how fog forms and why not everyone sees it. Fog is a collection of liquid water ...

Fog is a quintessential part of the Bay Area, a seemingly simple suspension of water in air that has shaped our culture and ecology since time immemorial. For us, it is the ghostly embodiment of cold ...

Redding is spending its mornings with its head in the clouds — literally. While the Shasta County valley usually gets a few foggy mornings around the holidays, Interstate 5 motorists and Highway 299 ...

SAN FRANCISCO (KGO) -- We have been under a foggy and chilly pattern for nearly three weeks across the Bay Area. High pressure centered off the California coast has created a resilient pattern of calm ...

Layers of the grey gloom have covered the region since the beginning of the year, decreasing visibility and making conditions ...

We saw some thick fog develop across our area this morning, prompting a dense fog advisory that expired at 10am. This was especially true outside of Louisville, in areas like E-Town where visibilities ...