Storm Live Updates: Toppled trees, thousands without power across Bay Area

The same system that spawned a tornado warning in San Francisco and toppled trees across the Bay Area is now dumping snow up in the Sierra Nevada.

Footage posted to X by UC Berkeley Central Sierra Snow Lab shows snow piled up at their base in Soda Springs.

"Believe it or not, it was during a period of better conditions," the lab wrote, adding they were expecting up to 20 more inches of snow in the next 24 hours.

A Winter Storm Warning is in effect for the region until Saturday night.

Novato police reported a citywide power outage on Saturday at 11 a.m. and asked residents to avoid unnecessary travel.

The outage was caused by a storm with high winds that arrived in the Bay Area Friday night, leaving multiple downed wires and trees, flooded roads, and inoperable traffic signals in Novato, according to the police advisory.

Police asked residents to stay home, avoid travel if possible, and only call 911 in an emergency. Road conditions are dangerous because of debris and fallen limbs.

PG&E's live outage map showed 7,440 customers affected as of 11:10 a.m.

According to a PG&E spokesperson, there were about 30,000 customers in Marin County without power as of 11:20 a.m.

The storm left more than 150,000 customers around the Bay Area and Central Coast without power, including major outages in the counties of Alameda, Santa Clara, Santa Cruz, and Monterey.

Outages were reported in every Bay Area County, as the storm dumped between 1-3 inches of rain in most parts of the region, with wind gusts forecast as high as 55 mph, according to the National Weather Service.

The Marin County Office of Emergency Management asked drivers to avoid Calle del Arroyo and state Highway 1, which is Shoreline Highway in the area, because of flooding.

Both lanes of Calle del Arroyo were blocked because of the water, emergency managers said at 9:38 a.m. Saturday.

About 2 inches of rain fell in the Stinson Beach area of Marin County within the past 24 hours as a rainstorm moved through the area, according to data from precip.ai.

There was no estimate for when the road would reopen.

There is a coastal flood advisory in effect from the National Weather Service through Monday afternoon.

The National Weather Service issued a flood advisory for the Petaluma area on Saturday, effective until 1:30 p.m.

The advisory was issued at 8:23 a.m. and followed a night of heavy rain in the Bay Area that followed up on a coastal flood advisory from the NWS issued this morning, lasting through Monday afternoon.

About 2 inches of rain fell in the Petaluma area in the past 24 hours, according to data from precip.ai, which tracks live rainfall totals.

Rain is expected to stop at about 10 a.m. with less than a tenth of an inch forecast, before rain is expected to return on Sunday night and Monday.