Cold Snap Continues This Weekend With More Subfreezing Temperatures

(CBS SF) -- The new year cold snap isn't wrapping up quite yet with freezing temperatures possible once again for most of the Bay Area Friday night and Saturday morning.

The National Weather Service has issued a freeze warning for the North Bay, East Bay and the Santa Cruz Mountains until 9 a.m. Saturday. Temperatures will likely be in the low 20s to low 30s in many locations with several hours of subfreezing temperatures likely.

These conditions can kill crops and other sensitive vegetation and cause stress on outdoor pets and livestock.

But come Saturday, an upper level ridge building over the region will result in gradual warming during the weekend. Dry weather is expected to persist into the early part of next week with rain chances developing by late Wednesday or Thursday.

The Bay Area Air Quality Management District has also issued Friday and Saturday as Spare the Air days.

A large dome of high-pressure combined with low winds and motor vehicle exhaust are expected to cause unhealthy ozone pollution in the Bay Area.

For both those days, it is illegal for Bay Area residents to burn wood or other solid fuels in fireplaces, wood stoves, outdoor fire-pits or in other wood-burning devices.