CREDIT TO CALIF. OFFICE OF EMERGENCY SERVICES A very cold airmass originating from western Canada has moved into California. Low temperatures below freezing are expected through Friday morning. Snow to the Northern Central Valley floor level is possible on Friday. As winter has arrived; you are again encouraged to review the “California Contingency Plan for Extreme Cold / Freeze Emergencies”, available on the Cal OES website at the following link: http://www.caloes.ca.gov/PlanningandPreparedness/Pages/Freeze.aspx