As dense morning fog blankets Northern and Central California day after day, here’s what you need to know about tule fog.

The National Weather Service has issued a freezing fog advisory for Lane County, effective until noon Jan. 21.

Dense tule fog has gripped the Central Valley, cutting visibility on I‑5, 80 and 99. Where it's worst, driving safety tips, ...

The advisory was issued for Wallowa County. "Visibility has improved across the greater area, and to above 5 miles at Joseph. The freezing fog advisory will be allowed to expire. Visibility may still ...

(FOX40.COM) — For the last few weeks, the Sacramento Valley has experienced extremely dense fog, leaving residents wanting to ...

Freezing fog can be tricky to forecast. It doesn’t always impact in a widespread area. But it can cause major issues. Especially this morning. Freezing fog is just like regular fog that forms when the ...

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 ...

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

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 ...

The fog is expected to stay in the Upstate until 4 a.m.

The freezing fog pattern that has plagued most of Central Oregon for the past week is starting to change. The region of ...