The atmospheric river will be most severe on Friday, with a flood watch already in effect today through Sunday, a wind advisory today and tomorrow for the entire Bay Area and Gov. Gavin Newsom declaring a state of emergency for Santa Clara and 20 other counties.

Page Mill Road will be closed from 8am-5pm today and Friday, while crews repair a sinkhole along a stretch of the road between Paseo del Roble Drive near Moon Lane and Arastradero Road in Los Altos Hills. State Route 92 was closed early this morning in both directions along a 4-mile stretch between Skyline Boulevard and west to Pilarcitos Creek Road.

The governor cited a possible surge in COVID cases and short-staffed hospitals, as some pockets of resistance to mandates grow.