Because stratus clouds form at such a low altitude (typically below 2,000 ft, but can form as high as 4,000 ft), the droplets within the clouds remain in liquid form.

We'll also be seeing increased chances of freezing fog and stratus clouds. At the moment, we're predicting that the pattern breaks down by the end of the week.

A cooling trend is expected across the state this weekend, with patchy fog in the mornings and sunny afternoons.

Lows will be in the mid-50s with areas of fog. North Bay: Morning stratus clouds will again extend into the Petaluma and Napa valleys, but skies will clear by the afternoon.

High pressure will remain in control today. This ridge will create very stable conditions, which will increase the potential for low stratus clouds and fog. The ridge will begin to breakdown later ...

He explains that clouds are a “dispersion,” meaning that they’re made up of countless particles suspended in air—more like fog than a solid object.

Because stratus clouds form at such a low altitude (typically below 2,000 ft, but can form as high as 4,000 ft), the droplets within the clouds remain in liquid form.

Weather Words: Stratus CloudsThese clouds are formed under stable conditions and can sometimes stay in the same location for days at a time. They form when warm, moist air cools down and reaches ...