A spill at a Russian River County wastewater plant caused by severe weather led to the release of 277,000 gallons of partially treated wastewater into the environment. Initial assessments show no harm to local wildlife.

A Frost Advisory is in effect for North Bay, California, with near-freezing temperatures expected. The National Weather Service advises protection for people and property.

A Dense Fog Advisory was issued for the North Bay Valleys until 10 AM following Wednesday's showers. Despite the fog, drier conditions with cooler temperatures are expected, and a warming trend is forecast for the weekend with possible light rain.