The 101 Freeway in south San Francisco was shut down for flooding just as New Year's Eve revellers were heading out to celebrate, but reopened a few hours before midnight.
While California's drought remains far from over, the wet weather that closed 2022 has enabled at least a few of the state's to exceed their historical average water supply.
Water releases from the Folsom and Nimbus dams led state parks officials to warn of safety hazards on Lake Natoma as rapidly rising water levels create dangerously strong currents.